electrical tutorial 2013

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CYMAP TUTORIAL

ELECTRICAL SERVICESTUTORIAL



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CONTENTS

CHAPTER 1 Introduction Page 3 Starting Up Cymap Page 4Cymap Menu Page 5

Launching Programs Page 7Tools Page 7Backing Up Cymap File Page 8Deleting Cymap File Page 8Setting Autosave Interval Page 9 Adding Carriage returns to DXFs Page 9Editing Cymap default Settings Page 10Editing Preferences Page 11Currency Conversion Page 12Calculator Page 13Imperial Metric Conversion Page 13Cymap Help Facilities Page 14Search Facilities Page 15Cue Cards Page 16

CHAPTER 2 The Project Wizard Page 19

CHAPTER 3 The Building program 5

CHAPTER 4 The Cymap Revit Interface Page 37

CHAPTER 5 Building Amendments Page 42

CHAPTER 6 the Lighting Database Page 46

CHAPTER 7 The Lighting Program Page 61

CHAPTER 8 The Electrics Program Page 77

CHAPTER 9 The Wiring Program Page 108

CHAPTER 10 The DXF/Plot Program Page 157

CHAPTER 11 Service Pack appendices Page 160



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CHAPTER 1- INTRODUCTION

Welcome to Cymap!

We recommend that you work your way through this guide before attempting to set-up aProject in one of the major Electrical or Mechanical programs.Consult the Cymap Electrical manual, and the Cymap Mechanical manual for moreinformation on each set of programs. Consult the Cymap Installation guide for information oninstalling Cymap.

Importan t Note

Throughout this Tutorial it is assumed that the user will be using the default colour schemethat ships with the program. It is worth noting that this colour-scheme is user-definable, andtherefore the references to the default colours may not always apply (for example, if a

different user has customised the colour and line-settings).

Colour and line-settings can be changed from the menu on the main Cymap screen. To dothis, see page 10 & 11.

The purpose of this tutorial is to take you through the process of setting up a project and thetype of scenarios you may encounter on projects in the future. Do not pay too much attentionto the engineering practices used on this particular project. The purpose of the exercise is tobecome familiar with all the software functionality and not how you would undertake the

project

For further information on particular details the context sensitive “on screen” manuals areavailable by selecting the “F1” key on the key board



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Starting up Cymap

Once you have installed Cymap you should see a Cymap icon on your Windows desktop (for

information on installing Cymap software please consult the installation guide).You can access the software by double-clicking the Cymap icon, or from your WindowsProgram Manager This calls the start up file 'Cymap.exe' which will run the software. Thesoftware will then look for the datakey, and take you to the introductory screen.Note: If the Cymap Menu appears first this is incorrect since the Short-cut will be looking ata file called 'Cymap', which is the file that calls the menu.If this is the case, change your Short-cut so that it calls 'Cymap.exe' instead. This can befound in the Cymapwin menu. Alternatively, you can delete the existing Short-cut and create anew Short-cut directly from 'CADlink.exe' which can then be placed on your desktop.Failure to do so will result in problems finding the datakey, plus you will not have theopportunity to set the Autosave facility on the introductory screen. You may also experiencescreen colour problems.



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The Cymap Menu

When using Cymap for the first time you will see the 'Welcome to Cymap' dialog box. This

also shows the Version number of the software currently installed .

Fig2- Welcome to Cymap dialogue box

Also contained is the engineer's name entry dialog, along with the work area you wish to use,the calculation method, and the Backup/Autosave options.The Autosave feature allows you to save a project automatically at a time interval of yourchoice. The default Autosave interval is 15 minutes (the limit is 5 – 60 minutes).At this pointyou can decide where you wish to auto save the project, either in a local folder, or on anetwork.ADVICE: Always save locally when working, its quicker and not subject to networkissues.back up to network periodically Wireless networks are notorious for “dipping”in and out and could cause data loss if interference occurs whilst saving data. Alsoslow networks can slow down the reading in of DXF files across a network also, so it’salways best to copy the content across from the network, run the program and back upelsewhere periodically.

You will then enter the software and be presented with the Cymap interface consisting of aseries of tabs down the left hand side.



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The Cymap Interface (Fig2a) illustrates the Community Tab which will always be the defaultactive tab on entry to the software. This tab enables the user to interface with the CadlineCommunity web site, enable the user to send e mails to the support area and to contactCadline. This is our means of keeping you up to date with events, software upgrades etc sokeep an eye out when logging in each time to take advantage of our facilities available to thesupported user. If you have current active internet access the program will default to theCymap web page.If you are denied access to the web, the standard “help readme” file will bedisplayed in its place

Fig2a – Cymap Main Menu

Projects Tab

Fig2b – Projects tab



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The Projects tab enables the user to start a new projects or open up an existing one. You caneither select the “Open” icon or select by double clicking on the thumbnail representation ofone of the recent projects you have undertaken. All project details such as date of lastamendment, engineer etc can be viewed.

Once a project is opened any recent documentation such as printouts, pdfs, dwgs etc can beaccessed from the recent documents option below. This is your gateway to your project

You will see the file name in the top left hand corner and the full pathing of projects for file IDand management purposes

You can also Save, Save As and Close the project from this tab. As you move betweenprogram tabs the project file remains open.

Mechanical Tab

This will normally be unavailable if you have purchased Electrical software only.Ifelectrical has been purchased in combination with Mechanical see Electrical tutorial2013 for details



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Electrical Tab

The Electrical tab is where all the electrical programs reside. Upon entry into the electrical taball of the Databases and Minor programs are available. The programs available whenentering the Electrical programs tab are:

17th edition cable sizing program

16th edition cable sizing program

Single room non floor plan based programProtection StudyQuickplan

When a floorplan based project has been setup from the program available when entering theElectrical programs tab are:

Building ( to enable editing of rooms/zones)Lighting (multi room)ElectricsQuickplan ( to edit the DXF file)DXF plot

Other programs will still be available but will just require the shutting down of the project inorder to enter them .IE if in multiroom lighting and wanting to perform a 16

th Edition cable

sizing project , simply selecting the icon will save the current project and enter the Wiringprogram.

ELECTRICAL PROGRAMS

Building-Once project started,is used to edit zones and floorplans

17TH

Edition Wiring – perform all schematic based wiring calculation to the 17th Edition

AMD1 Oct 2011

16th

Edition Wiring - perform all schematic based wiring calculation to the 17th Edition AMD1

Oct 2011

Single/Multiroom lighting - Calculate all single and multiroom lighting design, part l efficacyanalysis , emergency lighting, natural daylighting.

Electrics - Calculate route and quantify all electrical services suing a symbol library, ascertain

cable run lengths



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Protection Study – calculate discrimination between LV and or LV/HV combinations of

manufacturers circuit protective switchgear.Loading existing studies from Wiring projects

Quickplan - Draw up and scale the dxf floorplan in the absence of any CAD input

DXF/Plot - Export to CAD or plot /print interface

DATABASES

CPD DB – Setting up manufacturers switchgear, LV/HV discrimination studies amalgamatingdatabases

Busbar DB – Creation/editing manufacturers busbar systems

Cable DB – Editing/creating cable databases, examination of default fixed 17th Edition regs

database addition of manufacturers cable combinations

Lighting DB - Adding & editing of manufacturers fittings uploading photometry electronicallyamalgamating manufacturers databases.

Storage DB – Editing and addition of manufacturers storage heaters

Lightning Protection (Dehn)- Full BS-EN62305 lightning protection design, risk analysis,separation distance and downcondiuctor sizing

MINOR

Quick Cable – Calculation single cable size

Derate – Simple ERA cable derating cable

Trunk Sizing – Simple cable conduit/trunksizing program

Quick Illum – Simple lumen array calculator for single room

Quick Storage - Quick storage heater sizing program

NOTE : If all the icons, including Databases and Minor are greyed out this implies youhave not purchased the Electrical software, you have the wrong data key plugged in ora faulty datakey.



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Utilities Tab

Auto save Options

This function allows you to set an automatic save interval;

Fig 1 – Setting Autosave Interval

It is a good idea not to set the Autosave function to save the Project too frequently, sincedepending on the size of the Project (and the speed of your machine) it may take a relativelylong time.

Print Opt ions

The ability to set the default font type, header & title bar details



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Fig5 – Print Options

Print Setup

Set up your printer/previewer here using standard windows configurations.

Fig6 – Print setup

Preferences

This allows you to change a number of preferences (from the menu useTools\Preferences\General…



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Fig7 – General Preferences

…and also allows you to change the Line Colour and Style…

Fig8 – Line Colour and Style

Deleting a Cymap file

Deleting a Cymap project file is permanent, and does not pass via the Windows Recycle Bin. If you wish to use theRecycle Bin use Explorer. A dialog containing the file\s marked for deletion is displayed before deletion takes place;



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Fig 9 – Deleting Cymap files

Edit ing the d efault Cymap Sett ings

Each of the Cymap packages has its own suite of settings which can be edited by using themenu command (Tools\Cymap Defaults…)

By selecting the program pull down you can select which defaults you want to set for eachseparate program

Fig10 – The Default Editor



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Note: The name and value list will change according to which program is currently selected.

This enables you to customise your preferred settings for each program, so when thesoftware is used it loads up your preferred databases, design settings etc that populate dialogboxes in all programs.

Don’t forget to “Save” after you have made the change. This saves the “Cymdef.ini” file whichresides in the Cymap 20xx folder. When installing later versions of Cymap this file will change

as we add new databases and design settings, but wont effect the original you havecustomised as subsequent versions of Cymap default to different folders.

Backing u p a Cymap f i le

You can back-up a Cymap Project file to a directory of your choice;You can save as a zip fileand append it to an e mail...simply follow the screen instructions.

Fig11 – Backing Up A Project File



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Currency Convers ion – Cymap Defaults

This allows you to modify and store Currency Conversion rates.

Fig12 – Currency Conversion

Press F1 for On Screen Help with each entry field.

Note: Only Exchange rates to and from British pounds are stored.

Currency Convers ion

Similar to above, this allows to change the currency type and associate values and costsdirectly with a database.



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Calculator

This calls the standard Windows Calculator:

Fig13 – The Windows Calculator

Imperial\metric Conversion

This program contains a suite of conversion utilities;

Fig 14 – Imperial Metric Conversion

Note that you have the option to output results directly to the printer.Next we will look at the extensive Cymap Help facilities.



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Cymap Help facilities

Introduction

Cymap ships with a number of aids to help you make the most of the program\s you havepurchased.

Fig2 – Help Menu

Help Con tents

If you are a new User of Cymap, we strongly suggest familiarising yourself with the rudiments,either via the On Screen Help, or the printed User Guides (Cymap, Mechanical andElectrical).

Fig3 – On Screen Help (Contents)

The On Screen Help can be accessed either via the main menu, or by pressing ‘F1’. Pressing‘F1’ when a specific dialog or entry is high-lighted will bring-up context sensitive Help for thatdialog.



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Search Facil i t ies

Cymap offers a standard search facility mechanism for doing key-word searches;

Fig4 – Search Facilities



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CHAPTER 2 – THE PROJECT WIZARD

Introduction

The Project Wizard is equally useful to the experienced Cymap user and the novice alike. Itallows you to start new Projects quickly and easily, guiding you automatically through eachstep, using simple explanations and thumbnail representations to create a linked series ofWizards that enables you to get your Project off to the best possible start.

Start ing A New Project

To start a new Project:

From the Project tab select the New Icon

Wizard, New Project

You should now see the Wizard. This will guide through the various stages, helping you toset-up your Project, making sure that all necessary details are entered.

Press 'Next'

You will then be prompted to choose the method of data entry, whether floor plan based (thisworked example) non plan based, or whether you wish to draw the floor plan from scratchusing the “Quick Plan” Program.

For the purposes of this worked example we will be choosing the “Each Floorplan as aSeparate DXF” option



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Choosing Floor Plan Information)

For our purposes we are assuming a 4 storey building, with each floor using a separate DXF.Next, enter the reference and client details, if any;

Entering Project References

Next, the Weather Database building location appears.This has no bearing on Lighting andElectrical projects, but will affect any Mechanical Project. This will use the defaultdatabase “Weather Global 2010.DBE” and use all the associated data from the chosenlocation



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Now enter your default floor values;

Default Floor Values

For our purposes we will assume a 3 storey building plus roof ie 4 floors. Next enter your floorelevations - you can use existing .DXF files preview (for this exercise we will the use theTraining Example xxxxx DXF files supplied with Cymap in the Training Tutorial Project folder).If you use an existing DXF file it will appear in the preview window.

Don’t worry too much about individual room heights at this stage, we are merely setting up thestructure of the building here. These heights can be set up individually when creating therooms in the Building Program.

You will, at a later stage be able to edit all the elevations, raise and lower the building etcusing the DXF file manager.



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Entering Ground Floor .DXF

Enter the floor reference and select the “Training Example Ground.DXF” floorplan

Entering First Floor .DXF

Load up the “Training Example Ground.DXF” from the appropriate folder. Note: You mustmake sure that the origin of DXF files correspond for the three floors, and that there is noover-lap between different floors. In this case, therefore, we will again use the browse functionto open “Training Example First.DXF”.

Repeat the process loading the other floors



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Roof Void Entry

Next load up the “Training Example Second” DXF

DXF File Location Check

Next load up the roof plan “Training Example Roof.DXF”



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Once the loading of the DXF files is complete, the next stage is to enter the orientationof the building with respect to True North. This is irrelevant electrically but forms partof the general setup

Next you will be presented with a DXF location check, checking the X and Y locations of eachDXF file relative to each other

Note: The X and Y values do not need to match exactly. Some over-lap can be expected dueto different extents within each .DXF file. This ensures when moving up and down through

the building, the origin is in the same place so building services, when traversing floorsappear where they should on the floor above/below

Then press 'Finish'. You will then be returned to the Cymap main screen, at which point theBuilding program will automatically start. (See Chapter 5 “The Building Program”)



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CHAPTER 3 – THE BUILDING PROGRAM

The Building Program is where the entire building model is set up having been through thesetting up of the floor plans from the previous chapter.

WARNING! If you are working on the same project as the Mechanical Services

engineers, it is their responsibility to set up the initial Building Model.

The process described here is the abbreviated method of setting up the Building Modelfor ELECTRICAL SERVICES ONLY.

When Setting up the building model electrically there will be irrelevant dialog boxes thatappear on initial entry .

On entry into the Building Program, the first dialog box that appears is the “StandardElements “ list. (Fig 51) IGNORE THIS IF ELECTRICAL SERVICES ONLY

Ignore Standard Elements

Template Profiles

The other profiles can be created by selecting the “New” option enabling you to create a newprofile. This can be utilised later in the Lighting program as far as design criteria and lighting

fittings are concerned. Profiles from other projects can be uploaded. If you wish to load theprofiles from another project, select the “file” menu then “import profiles” Select the projectand select the profiles you wish to import. You can then set the “default profile”.



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The program will then ask whether you wish to commence the room definition at this point. Ifyou are happy to do so select OK and commence room takeoff

ROOM DEFINITION

The next process is to define the room boundaries using the DXF floor plan as a back drop ortemplate. Before starting its best to check a few of the settings, which should aid the roomdefinition process.

On the status bar at the bottom of the screen are four boxes ( 0, S X AND N)

O Is the Orthogonal which can be switched on and off when necessary

S Is the Grid Snap which will snap to the underlying grid

X Is the DXF Snap which will facilitate the snapping of the room line to the DXF floor plan

N Is the Notes file for any notes you wish to add.

To define the room select the “Insert” then “Room Definition” menu and the “Room DefinitionWizard” Dialog box then appears (Fig 56)

Room Definition Wizard

Enter the details, specifying the room name, the height of the room and the profile you wishthis room to conform to.

Room definition Wizard 2

The next wizard will display the number of faces and the cursor will turn into a crosshair



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Room definition Wizard 3

Once the cursor appears, you are committed to defining the room shape. If you don’t want toproceed press the ”ESC” key and the room definition command will be terminated.

To define the room, starting on the top left hand corner of the room click (using the LH mousebutton ONCE) around the inside face of the room, when you get to the angled wall switch offthe orthogonal (greyed out) click across the bottom face and switch the orthogonal back onagain and continue to define the faces. Double click on the start point and a Roof/Floorselector balloon appears which signifies successful room definition. If whilst clicking around

the boundary of the room, a mistake is made (ie Orthogonal not switched off) a RH mousebutton click will remove each face in turn until you get back to the point of rectification. TheRoom Definition Wizard face Selection dialog now appears(Fig 59)

Face selection Wizard

As far as the Electrical Only application is concerned you only need to consider faceswith windows.

Now click somewhere near the middle of the top face and the face will be highlighted inmauve. This signifies successful selection of the face

The Face Details dialog box now appears along with the default external wall type(StandardElements selection) In this case “44 Ext Wall Gnd” (Fig 60)



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Room Definition Completion

We can see from the plan that we need to consider the window within this face. Toaccomplish this select the “Next Element” button then click on one side of the window, th enthe other to ascertain the width of the window in plan form. Once this is done the “NextMaterial Details” box appears.(Fig 61)

Next Material Details

The default glazing element appears (Standard Elements) along with the dimensional detailsentry. Enter the Element Height of the glazing (sill to lintel) and the Start Height (sill height) .Once the correct details have been entered, move to next face by selecting the “Next Face”button. Select the middle of the next wall (preferably clock wise), this new wall will becomehighlighted and enter the window details as before. Work around the room entering door andinterior glazed elements in the same fashion as a window using the “Next Element “command. Finish the Room by then selecting the floor and roof type from the roof/floorselection balloon near the middle of the room. The fabric make up of the structure is irrelevantso ignore this

If wanting to insert a roof light, you need to make sure the roof is selected with the exposure”roof in sun” otherwise the daylight contribution will not be considered.

Once the room is complete the dialog box will appearwhich enables editing of the individual room details prior to closure of this particular room



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Room Closure Dialog Box

We are now able to edit either the Room “Profile” the “Faces” or the “Ceiling Tiles”. If weselect the “Profile” we are able to edit the actual number of people within the space anddiscount the previously set up default value set up in the “Template Profiles” .Likewise with

all other data entries.

Horizontally S plit Face

If undertaking a building where you have a series of lower height offices next to a multi storeyheight open plan warehouse, the "split face" option allows you to split the internal facehorizontally as far as exposures are concerned, from the larger full height room /zoneperspective. When defining the room you need to split the face where the adjacent differentheight zones are applied and splitting the face you need to select "split face" tick box and thelower height of the split face (ie height of office next door). The internal tick box will be tickedas a default as its more likely to have a lower height area next to the larger height zone ie 4 moffice next door to say a 10M warehouse)

Split face data , as below allows you to inspect the split face with a view to entering windowsin the upper exposed section with internal doors etc in the lower internal section. You caneven specify different material types if the upper and lower constructions differ.You still haveexisting full functionality of manipulating face data. If you have a reversal of the horizontal split, where the lower is external and the upper is internal , ie an overhanging office area abovean external car park then make sure when defining the split exposure the "internal" exposureoption is unchecked and the wall type set up as "wall in shade"



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Room Closure Dialog Box

We are now able to edit either the Room “Profile” the “Faces” or the “Ceiling Tiles”. If weselect the “Profile” we are able to edit the actual number of people within the space anddiscount the previously set up default value set up in the “Template Profiles” .Likewise withall other data entries.

Its worth noting at this point that Air Change Rate values can only be changed on theindividual room profiles and not in the “Template Profiles” .

Edit ing Face data

You may have made an error or omission whilst defining the room. This can easily be rectifiedbefore room closure by selecting the “faces” button (Fig 63 above).

This will then take you into the “Face Data Entry” dialog box which will show all the faces (inchronological order of takeoff)

Select the first face and the details of the face will appear, showing a pictorial elevation of theface viewed from inside the space. The wall details, orientation, exposure and dimensions are



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visible. Not all of these details are editable. The dimensional information has been derivedfrom the room takeoff

face data details(wall)

To edit further elements within the face double click the highlighted face text entry , and this will then cascade out toreveal the other elements within this face

Select the “External Window 1” and this will reveal all the window details, which can be edited. For example if thewrong sill height or glazing type was entered it can be rectif ied here.

Adding a roof light in Face data

For the purposes of this exercise we will consider the addition of the roof light in the kitchen area on the first floor



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Adding Roof light

The roof light can only be added manually and cannot be done when initially defining theroom, so this will need to be added before room closure, or by re-visiting the room and editingthe Face Data. Enter the “Face Data” in the usual way, select the “Roof” and then select“External Windows” now select “Add Window” . Enter the dimensions and position the rooflight thus: In plan view the “Start X” is the dimension of the LH side of the roof light from theLH face. The “Start Y” is the dimension up from the bottom face. The width is how wide(long)and the height (width) of the roof light. This terminology may seem confusing but is also usedfor windows in walls where the terminology is used universally.

The only time the room definition needs to be re done is if the physical outline is incorrect,

otherwise all changes can be made in the “Face Data”

If whilst selecting the faces you are wondering which face you are looking at, the room planwill highlight the currently selected face in a green/grey colour

We can conclude the room by inserting the ceiling grid arrangement by selecting “CeilingTiles”

This enables us to enter our ceiling tiles either manually, having the centre of a tile alignedwith the centre of a room, or the corner of a tile aligned with the centre of the room

Adding ceiling tiles



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Select OK and the ceiling grid will conform to your selection on the floor plan.

Selection of “Close” will conclude the room takeoff and take you to the next Room Take offWizard. If you don’t wish to proceed select “Cancel”

It is now the case of defining all the rooms within the building. Remember whendefining the Atrium, you will need to enter this as a full height of 15 M.

Order of room definition

1) Define all ground floor areas

2) Define all first floor areas.

Editing Rooms

You will find it necessary sometimes to re visit individual rooms, or even groups of rooms toamend the project details as the job progresses.

To edit an existing room, select the room so it is highlighted and the room name appears inthe bottom right hand corner of the screen.

Now select the “Edit “ menu, the select “Room” and then decide whether you wish to edit the“Profile” the “Face Data” or the “Ceiling Tiles” (see page 48&49)



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Editing Rooms Graphically (by dragging grips)

Once a room is defined and completed "grips" are available to enable the engineer to stretchof change the shap of the room in accordance with any changes that may prevail during thecourse of building modelling. Select the grip and drag to its new desired position. Whilstdragging the floor areas changes in realtime in accordance with the position of the grip beingdragged.

ADVICE: If you envisage major changes to a room shape ie from rectangular, to say, and "L"shaped space, you can introduce extra partitions along an exiting wall face, which will result inextra grips to facilitate the change of space shape. For example if one straight wall couldpossibly be split with 2 halves 90 deg to each other, when defining the wall introduce an extraface which will then allow this room change to take place

If you try to stretch a room boundary thatencroaches onto another existing definedroom, the outline becomes red, meaningthis cannot be undertaken unless theunderlying room is removed first. It may

also mean you are trying to compress aface with a fixed window size within thatface.If this is the case delete the windowin the face data.

Colour Keying of Materials

In order to give the you a quick visual que as to the type of materials used, you can utiliseDISPAY – OPTIONS and select the drawing tab to select the colour type and thickness torepresent the types of materials and their exposures (see below)



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If there is a window on the dxf file that is not highlighted in the selected colour, you havemissed it out....

Copying Rooms

You can copy a room of similar dimensions and attributes onto the same floor plan byselecting the room space, then with a right button mouse click selecting “Copy Rooms”. Thiswill give a representation of the room, highlighted in red on your mouse cursor.You can then“drop” a copy of the room on top of the floor plan, or by moving to another level. You can dropmultiple copies until ESC to cancel is pressed.

Copying Floors

This is the ability to copy entire floors and selected rooms up through the building to reduce

the time taken to generate the building model if the floor room layouts are the same or similar.

This involves using the “room filter” in the usual way to decide on the rooms you wish to copyup through the building. If there are rooms you don’t want duplicated, then omit them from theroom filter from the floor you are copying from.

For example if an Atrium was defined full building height on the ground floor, you would omitthis atrium from the room filter when copying between levels.

If you are wishing to copy an entire floor select the floor you are copying FROM , check theroom filter , then select from the table the floor you wish to COPY TO (see below)

There are certain sub features allowing more functionality on the room copy function



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Delete existing rooms on target floor

If during the process of the project there are existing rooms on the floor you are copying to,this will delete these rooms and use the rooms from the room filter from the floor being copiedfrom. ie it updates the layout...

Display target floor after copying rooms

This merely takes you to the floor plan you have copied the rooms to and displays this as thecurrent floor plan. If you are not wanting to be taken to the copied floor, un tick the box.

Adjust room height

If the heights of the floor levels you are copying to are different to the set up plans, adjustingthe room height adjusts the height to maintain a common ceiling void depth

Apply Room Filter

If this box is un ticked all rooms will be copied as there is no requirement to apply the filteringor rooms to be copied

Reset Room Names

This allows a global generic room name or portion of room name to be applied.ie you maywish to prefix each room on the second floor with “sec” so these can be lifted from a roomlisting as being the on the second floor. If the box is left un ticked and program willnumerically add the room umbers automatically

Apply Selected Profile To All Copied Rooms

If you leave this un ticked it will adopt the room profile from the room being copied.If you tick the box it will use the profile selected below , and apply this profile to ALL copiedrooms

Create New Zones Based On Source

If this box is selected, the program will allocate new zones to the copied rooms. For exampleIf all rooms are in zone 1 on the first floor and you use his option, all rooms on the secondfloor will be allocated as being zone 2 , unless of course there are more rooms on the projectwith zone “n”. If so then the zone allocated will be zone “n”+1. If you have multi zones on eachfloor, then you can use the room filter to refine the zone selection /allocation



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CHAPTER 4- CYMAP/REVIT INTERFACE

The latest version of Cymap allows the importation of GBxml data from various CAD systems thatsupport this format. This example uses Revit as the CAD system used.

Essentially the engineering space data supplements the room takeoff in Cymap so the engineerdoesn’t have to define the room boundaries within Cymap if GBxml data is available from the 3Dbuilding. The Revit program automatically creates the correct exposures as well as window andpartition data and generates this.

The data can be produced from separate drawings each floor individually or one GBxml file can becreated for a whole 3D building as a single xml file. (extension .xml)

Setting up the Cymap project is exactly the same until you get to the room takeoff stage.

Procedure

The building model or plan needs the engineering spaces set up in the Revit product.

Once the engineering spaces have been created, as below...



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the file – Export - gbXML data is selected . The file name and location is selected and then the filecan be written by selecting the EXPORT button in GBxml data export dilog box.

Decide on the location you are saving the file to.....

The progress bar will initialise as the file is being written and then an event log will present itself onthe screen. You then decide where you want to save the file.

The GBXML data has now been written.

The gbXMl data is dependent on the integrity of the model created.if error reports are ignoredand not rectified some rooms may fail to import into Cymap



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Uploading Data into Cymap

Enter the project wizard in the usual way by importing the dxf files for each floor of the building youare working on.

Continue through the process inserting all the level information , orientation etc in the set up Wizard.On Entry into the BUILDING program enter the structural materials and profiles as usual.

Once you get the caption below, select “No” option

Then select the File menu, then importthen- GBxml rooms option.

Select the *.xml file you have saved using the browse option on the import dialog box

This will initiate the importing of the GBxml file, showing all the engineering spaces imported.



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Select the import button and the room takeoff lines and Engineering space references will appear(provided the display option is set)

You will notice that on importing the Engineering Space data that rooms are selected via a tickselection. For rooms that are common to all layers such as a double height area or an atrium, thesewill be imported using the room heights from the engineering space model in MEP. The GBxml datalines and window data can be superimposed on the floorplan by selecting the 3 “draw outline…”options on the bottom of the dilog box above.

Once you’ve successfully imported the data the entire building layout will be populated.

What happens if I’m importing GBxml data for separate floors?

If you are working on individual drawings instead of one 3D building model, all you have to do is tomake sure a GBxml file is created for each separate floor, making sure , of course, the floor’selevation in the drawing is correct.

You create the separate GBxml file, then when in Cymap , select the appropriate floor and importthe correct GBxml file for that particular floor.

This new function along with the editing of exposures makes for much quicker turnaround of thebuilding model.

If there are major changes to the building, the best method to update the project is to “save as” say,revision B, of the layout, delete all the rooms, overwrite the dxf files with the new layouts and simplyre import the GBxml based on the new building DWG …..all your weather, construction and profiledetails will be retained from the previous revision.



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WHAT IF SCENARIOS……..

Having created the building model, the project, more often than not will progress and will besubject to change during the initial design process. This next section deals with the changesthat may need to be implemented, and how to undertake the process.

What happens if the base floor plan changes?

Simple, all you have to do is overwrite the original floor plan with the amended one. Theprogram will pick this up automatically having set up the original. You will have to ensure thatthe origin of the amended plan is in exactly the same place as the original, otherwise thedefined rooms will not line up with the plan.The other method is to go to TOOLS – MANAGEDXF and use the REPLACE button. This llows the user to select the revised file and replacethe existing one.You then need to go to the “Building” program and remove the rooms that have been affectedby the change. To do this utilise the “Room Review” dialog box, selecting the room and thenusing the “Delete “ button to remove it. Re define the room boundary to suit the revised floorplan.

What happens if the room heights need amending?

Using the “Room Profile” you can edit the room heights on individual rooms, or using the“Template Profiles” you can amend room heights conforming to different profiles as well.

What happens if the face data on rooms is incorrect?

Go to the “Building” program select the room, select the “Room-Face Data” section. Selectthe face and edit accordingly whether it be the material, the exposure, or any other dataassociated with the face.



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CHAPTER 5- BUILDING AMMENDMENTS

Having completed the building model we can now look at making changes to the building its selfas during the life cycle of the project , the building will be subject to change

Changing Elevations

Changes can be made to the elevations by utilising the Manage DXF feature

Go to TOOLS – MANAGE DXF

If we decide to drop the ceiling level by 200mm from 3.2 m to 3.0m maintaining the 800mm voiddepth we can use the Edit button and make the changes....

Note the changes to the other levels, effectively dropping each floor level. You can see the changein the room profiles with the ceiling/slab heights changing as a result.



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Each floor can be changes separately in accordance with actual site dimensional information

Changing Floorplans

Lets assume the Second Floor is subject to revision with the removal of the “2 nd Managers Office”

First we need to load in the revised DXF floorplan

Go to Manage DXF

Select the new revised floorplan and then select the “SHOW” button. This will d isplay the revisedfloorplan.

You will see the outline no longer includes the Managers Office, but the taken off room is stillthere.



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Now go to the DISPLAY – ROOM REVIEW and select the second floor filter, de- select all therooms apart from “2nd

Managers Office” and delete it. The room takeoff now disappears.

Now grab the drops of the open plan office and stretch into position

From here.....



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To here, remembering to change the exposure and add back in the window (absence of blue linedepicted below)

Alternatives

A viable alternative would be to either GBxml an entire project again labelling it “Revision B” orGBxml in the data from the existing project only importing the rooms that have changed.



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CHAPTER 6 - LIGHTING DATABASE

Before commencing the Lighting design, you need to consider the manufacturers type andrange of fittings to be used on the project. To do this you need to enter the lighting database,in order to ascertain the availability of the fittings you wish to include in the design.

The lighting database can be entered by selecting the Databases section in the Electrical tab, and then select “Lighting DB” icon

Selecting lighting Database

On entry into the Lighting database program, you now need to go to the database of choiceby selecting the “file” then “open” option and select from the db/lighting folder.

Note:As from Cymap 2010 Cadline no longer be provides lighting databasesas all photometry and information is freely available on line.We will, with manufacturers approval, provide raw photometric data only

with links set up to all the major manufacturers, to enable quick settingup of bespoke databases to suit user needs. Its now unrealistic toprovide large unmanageable databases when such information isquickly and freely available on the web. Most users create bespokedatabases suitable to their requirements as other specialist industrystandard lighting packages allow.

Ths existing databases which have to date been provided can sill beinstalled as legacy databases after Year 2000

A new link to all lighting manufacturers can be found in the “tools”menu which activates the HTM file listing enabling faster browsing ofmanufacturers



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Selecting lighting database

Select the manufacturer, and then a list of all the fitting types will appear in a dialog box.The range of fittings can be catagorised by manufacturer (if database is combined) and byfitting type. This saves time searching through large numbers of fittings that are not relevantto your selection criteria.You will also see an image of the selected fitting if imported correctly

You may need to consider combining manufacturers databases to enable differentmanufacturers fittings to be used on the project.

To do this use the “save as” function to save the file you are already in and save this using adifferent file name. This will then mean the active file is the one you have just saved with thenew file name displayed.



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To combine this with another file go to the “file” “import fittings” and select the manufacturerof your choice.

This then displays the fittings to import dialog box where you can select individual fittings forimport, or select the entire database. (Fig 70) You may experience a message concerningcurrency and tube/lamp type information. This is just a warning that all imported tube andlamp data will be amalgamated with the existing data.

You can continue adding as many fittings or manufacturers as you please to build up abespoke database to reflect the fittings you prefer to use.

You can also import Relux Plug-in data from the “file” – “Import Relux Fittings” menu. (seeonscreen manual for details) which will enable you to download and use Relux plug in datafrom various lighting manufacturers.

Once complete it is important you save the database using another file name. If youdon’t undertake this process, when installing your next version upgrade, the existingCadline provided file will overwrite your customised file

Fitting listing



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Importing fittings

Adding data to the Lighting Database

During the course of designing your lighting arrays, you may find that the manufacturers mayhave released a new fitting type that has not been included in the database. You will need toupload the fitting type from the manufacturers photometry and create the fitting yourself.

Adding a new fitting to an existing database is a simple process provided the electronicphotometry is accurate and conforms to industry standards

Cymap can upload the following Industry standard Photometry formats;

TM14 Parts 1 and 2Eulumdat European formatIESNA 63 US format

The most commonly used format at present in the UK arena is the EULumdat standard.

To add a new fitting to the database, open up the existing database (as described previously)

Once the database has been opened you will be presented with a list of fitting types (Fig 71)



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Adding photometric details

Select the “Add” button and you will be presented with the single fitting details dialog box Thisdisplay the fitting number

Uploading Photometric Data

Select the “File” menu at the top of this dilog box and then select “Import” selec t thePhotometric standard you wish to upload



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Selection of Photometry

You will then need to locate your Photometric data either from the CD-ROM provided by themanufacturer or the photometry you have stored on your machine/network

Bulk Import

You can also undertake a bulk import of a range of fittings from manufacturers. Simply selectthe bulk import option, select the type of fitting, whether you wish to calculate the TM5 andTM10 calculation on import. Select the LDT exfile extensions and them import.This willautomatically import all the fittings into the database.

Single fitting import

Selecting Photometric File

Select the file then pick the “Open “ button



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The Single Fitting dialog box will appear with the pre loaded information. (Fig 75)

Uploaded data

A word of warning here. The references used are very much dependent on themanufacturers’ interpretation of the fitting. They may use an internal reference which may ormay not correspond to the sales catalogue. You may need to amend this reference tosomething more familiar to enable easy selection once within the lighting program.

Each of the buttons shown above allows entry into the fitting details and photometric data. Any buttons italicised means data is either missing, or not required for the fittings application,i.e. a spot light wouldn’t require utilisation tables as they wouldn’t ordinarily be used in ageneral office lumen calculation. In this case above the “Correction” button is used to displaythe current tube types used. If it reads “Output” this will refer to point sources i.e. lamps andsmall fluorescent 2d type tubes.

Bulk Import of Fittings

To enable you to download an entire database, copy the photometry from source into thechosen directory as above.

Select the “File” , then “Bulk import” then select the photometric standard you wish to importthen the following dialog box will appear.



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Select the file type you are looking for. In this example the manufacturers have used the*.LDT extension, but this can vary. Also select the fitting type, the characteristics and whetherto wish to run the TM5 and TM10 calculation automatically on import.( this wil enable lumencalcs to be performed) The fitting characteristic and type may vary from fitting types to fittingtypes, so you may need to arrange the photometry by fitting type and characteristic, prior toentry as there is no industry standard I.D. for fitting types when importing raw photometryfrom manufacturers.

Select the browse button and specify the directory the photometry is to be imported from. Thiswill present a list of fittings with their photometric file name. You will also need to type in *.LDT( in this case) to indicate the extension of the files you wish to import. As this is a bulk importyou do not get the opportunity to select individual fittings here.

This will then take you back to the previous menu where you then select “Import”. This thenassesses the state of the data and if necessary indicated fittings that have failed due toincorrect of insufficient data. If no fittings are listed in the dilog box after importation, thismeans you have successfully imported all the fittings as only fittings that fail are l isted in theerror log.

Imp ort ing ROLF (Relux )

Many Lighting manufacturers now provide their fitting data plugin as a Relux format toenable users of Relux to download fittings quickly and easily, instead of importing individualfittings. If you want to import a complete range of manufacturers fittings via the Relux plug in,this is found in the main "File" menu of the ligthing program labelled “Import Relux Fittings”

This section deals with importation of the Relux Open Lighting Format (ROLF) database for

individual or groups of fittings.

Individual Fitting import

From the Edit Fittings dialog box choose import



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Choose 'ADD' , then on the new fitting dialog box choose import ROLF



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The XML based ROLF file will then be searched for photometric data, and imported into thedatabase. In this case an ' LED emergency luminaire' was imported.

Multiple Files

Alternatively if you have a number of 'ROLF' files in a folder, choose the "Bulk Import" optionfrom the menu

Choose the default characteristics.Browse to the folder containing the *.rolf files and lastlychoose import All of the 'ROLF' files in the folder will be imported.



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IMPORTING RELUX PLUG-IN FILES

You can now download and manage data from Relux plugin files provided by the lightingmanufacturers to enable you to quickly create databases in a structured method that allowsviewing of CAD, PDF and JPG files easily, to assist in identification of fitting attributes

Stage 1 - Downloading Procedure

First of all you need to visit the manufacturers web site and download the plug-in to aconvenient location on your machine. This plug in download will take the form of .zip file andin this zip file you will find an .exeFor demonstration purposes we have used the Cooper lighting plug in. This is called"Update_Cooper.zip"

Download to a folder of your choice ( in this example we have unzipped to /lighting)

You need to unzip the "Update_cooper.zip" and this will then create and unload the"Update_cooper.exe"

Right button click on the "Update _cooper.exe" file , select Winzip option and sellect one ofthe following only:

Extract to..

Extract to here..

Extract to folder (there may be a default present)

This will then expand out and should look similar to the directory structure shown below

It is important you follow the step rigorously, otherwise the folders will not expend outin the the pre set folders the program uses, inorder to load the pictures and CAD filesin the lighting database

Stage 2 - Importing Data to the database

You now need to enter the Cymap lighting database and select FILE - NEW then clear the listof luminaires by selecting "close"

From the FILE menu select IMPORT RELUX FITTINGS. You now need to locate the .MDB file which contains all the data for the plug in. This will be found in the DTB folder (see abovescreen shot). select the file and open it and you will get as per next page..



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Select the fittings you want to import or use the SELECT ALL button.You can be selective inthe approach you take.If for example you only want to import emergency fittings or surface

mounted fittings , select these groups of fittings. Then select IMPORT. You will then get asbelow...

You then need to catagorise the fittings based on your previuos selection by "Type""characteristics" and whether you want the program to generate the TM5 & TM10 calculationwhen imported.

Select IMPORT button and you will see the fittings start to import. if there are any issues iefaults/non conformance of standard with photometric data the import errors will be listed.This

will take a minute or two to load depending on number of fittings



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Duplicate References

When doing a Relux import: if there is an existing fitting with the same ref, a new fitting iscreated with the same reference but a suffix of /1 /2 etc.

Note:You may need to BROWSE to find the LVK folder if you have impoorted to adifferent directory/directory set up to the standard

To view the downloaded fittings select EDIT - LUMINAIRE .

Lamping Details

In order to use and associate different lamps and tubes with various fittings you need toallocate a particular lamp type to the fitting you intend to use. The lamp and tube types arelocated in the general database “Edit” menu

Tube Lengths

This is where you add new tube types into the database. You also have the ability to addemergency lighting information in terms of Ballast Lumen Factors

Adding Tube Details

Tube Colours

The Tube Colour renders can be added here along with the outputs and other detailsFirst of all you select the tube colour you wish to edit from the selection box

Colour Index



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Once the colour render has been decided upon, entry into the Tube Colour dialog box allowsyou to enter the output in lumens, any associated costs and re lamping hours

Tube Colours

Lamp Details

Normally associated with point sources, spotlights, floodlights etc, this is where you add lamptypes into the database. This is associated with the “Output” button whilst in the fittinginformation.

Selection of Lamp type

Make the selection from the above or “Add” a new lamp type to the database by entering theappropriate details. You can also add the Ballast Lumen factors (BLF)for emergencyapplication if necessary (Fig 80) The BLF can be taken from published data and represents a



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percentage of the normal output.ie an entry of 0.15 equates to 15% of initial lamp lumensunder emergency operation

Lamp Details

Emergency Lighting

You may need to consider Emergency Lighting as part of your lighting design. Severalconsiderations need to be made before entering the Emergency Lighting details.

1) The tube or lamp type associated with the fitting you are using needs to bedetermined from the fitting information using either the “Correction” button for linearfittings, or the “Output “ button for lamps. Once identified, use the lamping or tubulardetails to enter the Ballast Lumen Factors as a percentage of the Initial Lamp LumensSee Figs 76 & 80.

2) Whilst in the Fitting Details, by selection of the “Operation” entry details, you canspecify whether the fitting is Normal, Emergency only or Normal and Emergency.

Once set up, you can, within the lighting project, toggle your selected fittings between normaland Emergency from the fitting details.

Note: If your fitting is set up for “normal and emergency” mode, the program willautomatically allocate 1 tube only on multi tube fittings when the emergencycalculation is run



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CHAPTER 7 – MULTI ROOM LIGHTING

To commence work on your Multi room design based on the floor plan you need to open upthe existing project with all the rooms defined. This is opened up from the “File” icon in thenormal way.

To gain access into the Lighting Module, select the “Lighting“ Icon and a series of dialogboxes will appear as part of the introductory wizard.

The first dialog box to appear is the General Information dialog box. This consists of a seriesof tabs where general information associated with the project is entered.(Fig 81)

General Information

The next dialog box to appear is the “Template Profile” where profile information associatedwith different fittings is entered. (Fig 82)For example you may wish to assign certain fittings and/or certain design lux levels toparticular areas of the building, which can be set up in the template profile dialog boxes.This uses the profiles initially set up in the Building program and automatically loads up thedefault Template Profile.

You can utilise the “View Web Photometric data” to browse an HTM link to all lightingmanufacturers



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Template Profiles

The last dialog box to appear is the “Fitting Details for Template Profile” where the preferredfitting is selected and its details entered.(Fig 83)

Fitting Details for Template Profile

Editing Other Profiles

As mentioned earlier, the wizard loads up the template profile from the Building program. Inorder to edit other profiles, select the “Edit” menu, then “Template Profiles”. This then displaysthe template profile selection box where you select the profile you wish to edit, and whetheryou want to edit the fitting type for the profile (Standard Fitting), or the design data associatedwith the profile (Settings).



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Room Profiles

You may need to be more specific concerning the fitting types or design data associated withone or two rooms that may not conform to the general profiles. To edit data associated with asingle room, select the room by clicking within the room boundary, and you will see the roomname appear in the bottom left hand corner of the screen.

Select the “Edit” menu and then pick either ”Standard Fitting” or “Settings” which will allowyou to alter the fitting type and design details for that particular room.

Adding Fittings (Lumen calculation)

To add fittings to a room there are 2 choices. Either you can add fittings manually placingthem yourself, or you can use the program’s Lumen calculation to place fittings based on theoptimum space to height ratio within the space

To run the Lumen calculation you can either just double click within the room boundary(firsttime only), or you can select “Insert” then “Lumen Calc” from the pull down menu. You willthen get the Lumen method calc box appear.(Fig 84)

Lumen Calc

If the fitting fails the calculation use the “Std Fitting” button and pick a more suitable fitting forthe room space. The “Settings “ button allows you to change the design criteria for this room. Once satisfied the fitting is suitable and giving the required lux levels, pick the “Set Up Array” button and your fittings will be displayed and positioned within the room. If you have ceilingtiles set, there is a snap setting in “Display Options” which can be switched on and off.



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Fittings Layout

You may wish to add further fittings to the room such as display lighting etc. To do this, first ofall, the new standard fitting within the room needs to be changed. With the currently selectedroom go to “Edit” “Standard Fitting” and then pick the new fitting type you wish to use.

If placing an up lighter, remember to switch off the ceiling grid snap setting so you canposition the fitting against the wall. Also set the height from the ceiling whilst in the fittingdetails.

Now select “Insert” then “Fitting” and place the fitting manually on to the floor plan. Thecommand is active all the time until the “Esc” key is selected.

You can now go and insert fittings in all the various room areas, adding supplementary fittingsor changing the room design data to suit your requirements.

Changing to another fitting type

You may wish to change to another fitting type within the zone or space to enable , saydisplay lighting, Simply select the room then “EDIT” – “STANDARD FITTING” this will give thesame dialog box as per fig 83 on page 60, but for the room selected. Select the fitting theninsert it by selecting “INSERT” – “FITTING” and place it on your layout.

Emergency Lighting

It may be part of the design brief to include Emergency Lighting. There are 2 types of fitting,dedicated emergency fittings in which case all you do is place a fitting as previouslydescribed.

If a fitting is to be used for both applications, you need to check the fitting details from thedatabase and make sure the fitting has been set up to accept emergency use. If not, this caneasily be setup as described in the previous Chapter 5- Lighting Database.

If however only one of the tubes is to be used under Emergency conditions, you need to takea copy of the fitting, select number of tubes as one and also set this to emergency only. Addthis new fitting as either a dedicated fitting, or edit the existing fitting and re assign the copied

one.



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To nominate the emergency fittings, simply double click on them. The fitting details will showthe Emergency arrangement option .Select the option here and then go to “Display” “Options”and run the Emergency lighting option.

This will only show the results from the nominated emergency fittings and display the luxlevels accordingly. You will get an initial message indicating that the lux levels legend willhave its colour selection re assigned to take into consideration the lower lux levels.

Displaying The Results

The results can be viewed once fittings have been placed. A variety of results types can bedisplayed ranging from Isolux levels to Numeric Grid and coloured Intensity diagram.

To view the results, go to “Display” then “Options” and then select the “Lighting” tab.

The results viewed depend on the selections made from the “Results Type” column and thetype of calculation is based on the selection made from the “Scope” column.

It should be noted that when the “Emergency“ calculation is run, only fittings that have been

set to emergency application will be considered. Also the legend will change to take intoconsideration the reallocation of colours to represent the much lower Lux levels.

The most informative displays are the Isolux displays and the coloured Intensity display.

Resolution & Interreflections

The higher the resolution setting, the more accurate the results as more points are used in thePoint to Point calculation. Initially when making sure you have achieved the design Lux levels,you can then increase the resolution for a more accurate display and results.The higher the resolution, the longer the program takes to calculate. Maximum resolutionsetting uses 7000 calculation points within the prescribed room boundary or target area.

Inter reflections are used to take into consideration reflected light off the various roomsurfaces using the reflectance values set in the “Settings” dialog box. The ray tracingtechnique is used to determine how many “bounces” a ray of light will be reflected around theroom. You set the amount of inter reflections yourself. Again the more inter reflectionsselected, the longer the calculation will take bearing in mind the number of fittings and thenumber of faces involved. Sometimes the calculation can take a few minutes.

When calculating any results, you will notice in the bottom left hand corner of the screen theprogress of the calculation as it proceeds through the various calculations.

Editing Fittings

When experimenting with different fitting types or editing data, always make sure the resultsdisplay is set to “None” in the “Results Type” column. Basically if any changes are made withthe results active, this will force a re calculation every time a change is made. Not what youwant to happen when editing a large room with a few hundred fittings! Pressing the “Esc” keywill cancel the calculation at any point. To edit the fitting simply select it by double clicking andthe fitting details dilog box appears as per fig 83 page 60.You can also selec a range offittings to be edited by either using the CNTL key and selecting the fittings, or putting a boxaround them. Go to “EDIT” – “SELECTION” to change the fitting characteristics, so all theselected fittings are changed

Task Area

The Task Area can be used to define areas of specific interest either on the working plane orthe floor level. You can define the task area by selecting the “Insert” then “Task Area”. Definethe area of consideration switching on and off the orthogonal angle as required. When



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displaying the “Summary” tabulated results the task area will be given separately under the“Task Area” tab. The results are not able to be viewed from the floor plan.

Auto Calc

The program has the ability to Auto calculate selected rooms. If you have a building where amajority of the rooms are similar, the program calculates all rooms at once instead of youhaving to enter each room and then running the lumen calc separately. To initiate this

process, select the “Edit” then “Auto Calc” menu. This then offers up a room filter with allrooms selected. De-select the rooms you don’t want to be considered.

The basis of the Auto Calc is the template settings applied in terms of fitting type and designcriteria held in the room profile. For repetitive lumen calculations on identical rooms, thisfunction is very useful.

Display Menu

The “Display” menu allows you to check and display the results in various formats.

Summary

The Summary results show the results on the faces and Working Plane, for the currentlyselected room.(Fig 86)

Summary results

Schedules

This will itemise and schedule the fittings used as well as the tubes and lamps on the entireproject.



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Surfaces

This enables you to view either the Isolux levels or the Intensity levels on any of the surfacesof the currently selected room. Simply select the surface you wish to “remove” to enableviewing.(Fig 87)

surfaces

Real Time

The Real Time option allows you to view the space from either inside or outside in real time3D animation. You can rotate and zoom in and out by dragging the mouse forwards andbackwards, whilst depressing the right hand button and rotate/elevate by depressing the lefthand button and rotating the display.(Fig 88)

Viewing Real Time animation You also have the option to save the Real Time animation as a .cyr file that can be loadedany time without having to re calculate. Various functions enable you to select a differentroom if viewing an entire level, as well as being able to switch off the fittings and removing theintensity display if necessary.



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Contour

This option allows you to view the Isolux in the form of a contour diagram, where you canadjust the the altitude and azimuth of the viewing position (Fig 89)

Contour selection

Having selected the Altitude and the Azimuth the Contour diagram will appear showing the luxlevels in a 3d format along with the legend indicating the lux levels (Fig 90)

Contour Levels



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All Rooms

You can display the results of all the rooms on the floor plan concurrently by firstly selecting“Display”, “Options” then decide the results output you wish to use. In this case “Intensity” isthe selection made.

If you wanted to print the results in either Isolux form or Intensity, you can then initiate theprint screen command to show all rooms.(Fig 91)

“All Rooms” results display

Summary Energy Results

This enables you to calculate the running and capitol costs of your light fittings used on theproject. You can also investigate the reduction in running costs by switching off rows of lightfittings ie in conjunction with day lighting.

The capitol costs of lamps and tubes are also shown here, however in no information isforthcoming from the manufacturers or there is no information in the lighting databases, thenthese will read as zero, as this worked example shows. You would need to add your owndetails in here to reflect the cost variations from supplier to supplier.The unit cost of electricity is entered in the general details and used here to calculate the

running costs based on the hours of usage. (Fig 91).The Hourly and Annual energy can bedisplayed also.



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Summary Energy Results

Building Regulations Part L Lighting

There are two different methods in the calculation with the same base minimum efficacy of 55luminaire lumens/circ watt

Offices, industrial and storage buildings

Lists all fittings that comply and italicises the areas that don’t meet the requirement

or this method...



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Other buildings

Lists all the fittings that comply with this method, note the absence of control settings as perPart L 2010 regulations

Fitting Groups

By making this selection, you can view all the fittings used on the project (Fig 91).

– Fitting Groups



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CHAPTER 6 – SINGLE ROOM & EXTERIORFLOODLIGHTING PROGRAM

The Cymap software has an option to undertake single room lighting design, and exteriorfloodlighting based on a site plan in DXF format. The Single room program can only handlesimple room shapes based on rectangular/square configuration. Anything more complicated

than a simple shape will have to be undertaken in the floor plan based program.

Single Room Interior Lighting

To access the Single Room lighting program make sure a multi room project isn’t open.Select the ;lighting Icon and then select “File “ “New” fr om the pull down menu on the blankscreen.

You will then get the Project General Information dialogue box displayed (Fig 92)

General Dialog Box

Select “Interior” choice and enter the various details such as reference, description etc.

You will need to enter the Room Dimensions and by selecting the “Room Shape” option youhave a choice of our basic room configurations. (Fig 93)

These room shapes are as complex as they get in the single room lighting program.For more complex shapes, you can either use the Quick Plan draughting package todraw out your own room, and then use the floor plan based program to define theshape.



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external floodlighting databases. External floodlighting databases are easily identifiedby their name ie “Whitecroft External Floodlighting UK 2002.DBX”

Select the site plan DXF file you wish to use from the location you are using. The program willneed the Drawing Units to be entered here. Enter 1000 Drawing Units (as the originaldimensions of the drawing were mm) (Fig 95)

Fig95 – Drawing Units

If the original drawing the DXF file was based on was dimensioned in Metres, then enter “1” in

the “Drawing Units Per Metre” entry box. This ensures correct scaling of the site plan.

You will then be asked to enter the Maintenance Factor of the fittings used. (Fig 96)

Fig96 – Maintenance Factor

The program will now display the site plan and automatically invoke the Fitting Details toenable fitting selection and mounting height details.

Select the fitting you wish to use from the right hand column and also enter the mountingheight above the ground datum level of zero. If mounting rows of fittings to form a multi fittingfloodlight on a gantry, such as a football stadium, you will need to vary the fitting heights asyou arrange then in rows on their mounting gantry. (Fig 97)



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Fig96 – Fitting Details

Once the Standard Fitting is decided, select the “OK” button.

Zoom in on the plan to the area of interest and then select “Insert” then “Fitting” . Select the fitting of choice from the list, select “OK” and then place the fitting on your plan withone click of the LH mouse button. The second click orientates the direction of the fitting

utilising a “rubber band” effect line.the second click should be roughly where you want thefitting to point.

If you want the fitting to point directly vertically downwards after the initial placement “click”,press the ESC button on your keyboard.

You can then arrange all the fittings to suit your layout. If required you can use the “Insert”“Array” function to arrange a number of fittings in a row. Simply type in the number of fittingsrequired in the array, select the start point, then the finish point. This will then equidistantlyspace the fittings between the start and the finish points.

Task Area

You can examine a specific area of interest by creating a boundary which will display theresults within the boundary only. Do take advantage of this function, select the “Insert” menuand then “Task Area”. Expand the window around the area of interest, so when you run thecalculations the results will only be shown within the task area defined. To remove the Task Area, simply select the hatched line and press the “Delete “ key on your keyboard. You will beprompted as to whether you wish to delete the Task Area or not. Select OK and the task Areawill be removed



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Fig 97 – Placement of Fittings

Obstructions

You can add in building obstructions so the Isolux lines do not impinge on these areas. Selectthe “Insert” then “Obstructions” menu. You will see a small dialog box appear on the screenwhere you enter the height of the building. Trace around the building utlising the orthogonal

angle setting as required.

Façade Floodlighting.

You may wish to look at the floodlighting effect on the facade of a building. The process is thesame as before, except you use the sectional elevation of the building as the site plan, andthe fitting mounting height is effectively how far out from the façade the fitting is placed soeffectively you are now looking at an elevation instead of the plan.



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CHAPTER 8 – ELECTRICS PROGRAM

This program enables you to route the electrical services, connect to the already placed lightfittings and create the final distribution board schedules on the plan layout.This program is not capable of sizing cables or sizing and trunking or cable containment

To enter the Electrics program you need to open up the floor plan based program and then

select the “Electrics” icon. On the Electrical – Programs tab

This will then open up the Floor Plan.

The best way to proceed is to work down the “Insert” menu starting with the distribution board.

Insert Menu

Boards

Select “Boards” and then position and place the board on the screen. A dialog box appearswhere you need to enter the Board General Details dialog box with a view to entering thereference, no of ways, phase arrangement etc.(Fig98)

Board Details.

Repeat this process, adding and referencing further boards as necessary. Press “ESC” key toterminate the “Insert” “Boards” command.

Note; Should you wish to amend the board reference this will also be reflected on the actualload references connected to the board being changed, on the floor plan.

SYMBOLS

From the symbols library select the type of symbol you want ie “Power” and the appropriatelibrary will appear on the screen. Select the symbol you wish to add from the pull down menuplacing them in the location of your choice on the screen. Whilst the symbol is on your cursor,pressing the right hand button of the mouse will rotate the symbol so you can place it insympathy with the floor plan. Some symbols require a reference and load, for example astationary equipment load or cooker.Stationary equipment loads are usually 3 phase applications such as pump motors, AHU fansetc, but you can stipulate single phase operation by selecting a load on one phase of the load,and it will then be handled as such.



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Inserting symbols

Once each symbol placed, it will have attributes associated with it. The default attributes usedare:

Reference/part number,ManufacturerUnit cost.

This data can be entered which will be used in the Bill of Quantities generated. Other

attributes can be added , but this forms part of the customisation of symbols which isdescribed separately.

Not all symbols placed have electrical loads associated with them. Only symbols placed withelectrical characteristics will be affected by the ability to check whether the load is applied tothe board and the cable length taken off.

Light switch symbols can be placed using each switch as one “gang” of the switchingarrangement. (Fig99b)

AHUs etc can be identified by switching on the services layer from the “Display Options”option then show “Other Services” option.



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Adding Symbols

Continue adding your symbols on the layout to suit your own requirements.

Switching

This part of the program is used to allocate the ways to the phases on the boards and willallow you to balance the board whilst scheduling the loads.

Select “Insert” then “Switching” and then select the board you wish t o allocate and associateyour circuits with.

A board schedule will appear where you effectively schedule your circuits and allocate theassociated ways (Fig 100).

To schedule a way and phase, select the way of interest by selecting way, and then allocatethe phase by selecting the appropriate radio button at the bottom of the screen.

Once the load is selected and allocated, its load on the phasing arrangement is displayed as

a small dialog box until cleared.



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Loads connected.

As the loads are added you will be able to identify the connected loads by the fact that theyhave a coloured blob associated with them. As you build up the board schedule it shouldappear similar to below.Any symbols in mauve are unconnected and can be highlighted assuch in DISPLAY – UNCONNECTED CIRCUITS(Fig103)

Switching Arrangement.

When connecting in to socket circuits, select each socket in turn and then double click on thelast socket associated with the circuit.

Cable Supports

The cable containment can be entered to allow more accurate routing of the cables later on.The cable support is purely a visual aid so you can trace the cable lengths between the



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boards and the loads. There is no facility to automatically size the containment regarding thecable sizes.

To add in the cable lengths select “Insert” “Cable lengths” and then select one of the optionson the listing. To route containment, select the board by clicking once, and then route yourcable support, double clicking to terminate your cable support.

Adding Cable Supports

Cable Lengths

You can now add your cable lengths to your loads. To add the cable lengths, select “Insert”“Cable lengths”. If you consider the cable routing from the board to the light switches shownas an example. DISPLAY – HIGHLIGHT UNMEASURED CIRCUITS will enable the user toidentify circuits which haven’t had their cable lengths taken off.These will be highlighted inorange (Fig 103)

When the command is selected, a routing dialog box is started up. Select the board and thenselect the height you wish to run the cable at. Click once for every change of direction,following the routing of the trunking to the light switches. As there are 4 light switches at thesame point, you can use the “record” button to save you routing from the board to the lightswitches each time as they follow the same routing.(Fig 104) Select the record point and thenroute the cable to the first light switch you need to connect to. Double click on the light fitting,and a dialog box will appear (Fig 104)



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Record Facility

Cable Lengths



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Sounder details.

To calculate the fire alarm sounder levels, select the “Fire Alarm Audibility” function and thenselect the fire alarm sounder of interest. This creates a “rubber band effect” line. Click at thepoint at which you wish to measure the sound level from. The results will be displayed in aresults dialog box.(Fig108)

Fire Alarm Audibility

For a more detailed analysis , you can stipulate , from a sub set of building materials, the

contstruction of the partition between the sounder and the recipient position. Simply select the“details” button” and then select the wall/partition type ( the area of which is calculated) youcan also enter doors and windows as well as their respective areas. You will see the revisedaudibility levels from the sounder calculated.



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Part L Proximity Check

You are now able to check and consider the control of your light fittings by analysing whetherthe fittings you intend switching to are within the stipulated 6m from the switches you haveplaced. Select the “Part L Switch proximity Indicator” and then select the light switchconcerned. This will show a circle 6m in dia where you will then be able to asses which fittingscan be connected and formulate a switching strategy which will also help towards balancingthe loads on the distribution board. ( see page 69)

Part L proximity check



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CHAPTER 9 - WIRING PROGRAM

Welcome to the Cymap Wiring program

The Wiring program is a schematic based cable sizing package based on 16th edition IEE

electrical sizing principles, utilising cable and breaker databases.

The program is flexible in its usage in that there are various approaches that can be takenwhen creating a project from scratch.

COMMANDS

EDITING LOADS/BOARDS

Double click on the cable or loads to edit. The general details associated with this load will bedisplayed.

DELETING LOADS/CABLES

Click once on the load so it is highlighted in mauve, then select “del” key on the key board

MOVING LOADS/BOARDS

Click and drag to reposition the load or board. If you window a group of loads you can dragthem relative to each other. You can also utilise the ctrl key to select loads that cannot beselected from a pick window

CABLE/LOAD COLOUR STATUS

BLUE

Implies the cable and its details have been fixed

CYAN

Non fixed cable connected in situ

PURPLE

Currently selected cable or load

RED

Problem cable or load.



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ASSOCIATED WIRING PROGRAM DATABASES

CPD DATABASE.

The program utilises the breaker database in order to effect breaker and discriminationcalculations. The databases consist of time current i2t curves which are then used for the

cascading calculation analysis.

To enter the CPD databases, go to the Electrical tab and select from the Databases sectionand select the CPD DB icon.

On entry into the database select “file open” and then select the database you wish to accessf rom the /CPD folder off the /DB folder ( in this case for example pick the “Schneider Electric2010_17_RevA.DBZ” any greyed out devices are now deemed obsolete, but still supplied forexisting installations

You are then presented with a list of breaker types within the database. (Fig109)

Breaker listing

Select the range of breakers ie BS88 fuse and then select the “edit” button, which opens upthe CPD database entry dialog box, where general entries are made in terms of thereference, size ranges, RCD ranges and manufacturer ( Fig 110)

For MCB types you need to select from the following types of MCB:

Type B MCB BSEN 60898 or BSEN 61009-1 RCBO (3-5xIn)Type C MCB BSEN 60898 or BSEN 61009-1 RCBO (5-10xIn)Type D MCB BSEN 60898 or BSEN 61009-1 RCBO (10-20xIn)Type K MCB (8-12 x In)Type Z Mcb (2-3xIn)

This entry is required in order that the correct values from table 41.4 are used to identifymaximum earth loop impedances specified in table 41.3 of the Wiring regulations.



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MCB entries

Database data entry

To add or edit the sizes of breakers, select the sizes button which will then display the all the

sizes available Choose the type of device e.g. BS88/1361/1362 for other types of BS/DIN

fuses etc choose 'Other'. This again ensures that the correct maximum Zs figures from tables41.2/41.4 are used for Earth loop impedance calculations.



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CPD sizes dialog box

Select the size you wish to look at, or select the “Add” button to add the required size range.You need the manufacturers published curves for fault, i2t and peak cut off data which can beadded to the table. This tabulated data forms the curves used in the calculations. You canview the graph by selecting the “Graph” button.

Electronically Adjustable Breakers

Breaker Curve Data Entry

Curve Selection in CPDDB of both Mccb Electronic, and ACB;s is affected by the selectionsmade when setting up a circuit breaker. For more complex entry data for air and electronicbreakers the entry tables are a little more complex in that the settings need to be enteredfrom manufacturers sizing information. When selecting an electronic breaker, the programwith select and use the MAX setting. Its up to you to adjust out and fine tune the settings asparticularly with infinitely adjustable breakers, the program has no criteria on which setting touse



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In previous Versions of the CPD database program there were only two options for CurveSelection/Drawing. ‘Standard’ & Schneider Electric.

The choices here affect both the labelling of the curves and how they are drawn eg(In=Nominal Rating of Device in Amps, Io=Base Current setting value (multiplier))

Standard: Io/I1/t1/I2/t3/I3 (see graph for curve labels)I2= In x Io x I2 SettingI3= Io x In x I3 Setting

Schneider :Io/Ir/Im/tm/IiI2= In x Io x I1 x I2 SettingI3= In x I3 SettingThese were the only curve draw selection options. However

New Curve Selection Options:



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Standard (Terasaki)I2= In x Io x I2 SettingI3= Io x In x I3 Setting

Standard1I2== In x Io x I1 x I2 SettingI3= Io x In x I3 Setting

Standard 2I2=InxI2 settingI3=In x I3 Setting

Schneider ElectricI2= In x Io x I1 x I2 Setting (same as In x Io x Ir x Isd)I3= In x I3 Setting

Example :The choice of curve will affect where the vertical I2 (short amps) and I3 Instantaneous ampsare drawn.

Consider a 1000A Nominal Rated MCCB.Some Basic selections:Io=.9

I1=.8I2=5I3= 10

For each of the choices concerned:Standard (Terasaki)I2= In x Io x I2 SettingSo I2= 1000X 0.9 x 5=4500AI3= Io x In x I3 Setting0.9 x1000 x x 10=9000A

Standard1I2== In x Io x I1 x I2 SettingI2=1000x0.8x0.9x5=3600AI3= Io x In x I3 Setting0.9 x1000 x 10=9000A



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Electronic breaker data entry.

For more explicit details concerning the data entry, see the accompanying manual.

HV DevicesChoose the type of HV device from the pull down listing. The option selected will alter thedata entry method required. The IDMT formulae data entry will only be available for a Relayand a Static Relay device Most devices Both HVR's & HVSR's Have the ability to respond toEarth Faults using an entirely separate part or function of the Relay. Some LV ACB's and noweven MCCB's have this ability. But presently Wiring does not use Earth Fault Trips to evaluateEarth fault disconnection times, nor does it do a separate pass of Discrimination under EarthFault Conditions. IT only does any sort of Earth Fault analysis using basic RCDs So this issomething that needs to be addressed in the very near future, as even LV MCCB's (LikeSchneiders new NSX Range) have in built Earth Trip functions. The CPD database can storethe data, its just that Wiring presently makes no use of the information in CPDDB.

Supported Types of HV Device:

HV Fuses

(Various types DIN/IEC/BS/AS/NZS ) Oil Immersed,Cartridge,Expulsion etc. CPDDB canmake use of most types of HV Fuse. You would typically Find HV Fuses protectingTransformers

HV Relays (Or Induction Type Relays)

These are the fore-runners of modern Protection relays, and use an induction type of systemlike you might see on your old disk type electricity Meter, the disk turns and closes a contactwhich trips a circuit breaker. Their time/current characteristics are generally Inverse with amin time, hence they are named IDMT (Inverse Definite Minimum Time) Although no longerused for new projects, there are thousands of these still in use in existing buildings &networks. They are available with different characteristic SI/VI/EI (IEC Curve FN Defs) andeach curve function has its own unique shape. They are adjusted by the 'Plug' tap (see Pic)which affects the current they can respond to. And the time delay (Known as (TMS) by simplyturning the wheel which moves the contacts further or closer together. They require use of aCT to actually measure the HV current as a relay typically only needs 1A activate it or to drivethe contacts fully closed. So we want our unit to say disconnect @ any value above 100A @11,000V, we need to use a CT of 100:1 ratio so that when 100A flows thru the circuit we get1A provided to the relay which will start to operate when current in the protected circuit risesabove 100A.



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HV Static Relays (HVSR)

Click on this button to enter size and curve data for the selected HV device. This will thendisplay the HV static relay Entry box , as below)

HVSR general

General tab

Choose which particular stages are available. From the Manufacturers data sheet there is noIth stage for this device, but there is an I> stage. The software allows either the Ith or I> stageto be programmable to use different types of disconnection curves. So we will tick whichparticular Curve types are available for the I> first stage. SI/VI/EI/DT/ are available for this

device so we will select each of them in turn.

Advanced Settings Option

This will allow you to make time based adjustments to the standard IEC/ANSI IDMTequations.

For example the IEC standard equation for an IDMT Standard Inverse (SI) Curve is:

t= ((k/(Im^a)-1) +c) x .tms

Where the constants k=0.1,a=0.02 & C=1 ( for an SI Curve)

tms=the time multiplier setting of the relays (assumed to be the t> setting of the relay)



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Im= current multiplier in multiples of the setting current

Looking thru the Schneider document the equation used is :

t=(0.14/(I/Is)0.02-1) x t>/2.97

Therefore in order for the correct time multiplier to be used when setting the t> setting youwould need to apply a correction factor of 2.97, to ensure the relay generates a curve with theappropriate time shift for the current IDMT curve. In a similar manner correction factors have

been applied for the remaining curve types. See screenshot. Note most IDMT relays have adefault 'Pick-up' value of 1.1. eg the Pick-up current that will begin operation of the relay willbe 1.1 x the Current Setting current of the relay. So if the setting current was say 100A @11kV. The relay will begin responding at around 110A. This particular device however has afixed pick-up value of 1.2X Setting current (low set pick-up) So we have entered theappropriate factor of 1.2 (as shown)

The RN2C is available with 800:1,400:1 or 200:1 CTs, we are going to set-up a unit with a200:1 CT. So we have entered 200A as our Primary Current

Now lets set-up the various multipliers for each stage, select the I>t> tab.

Looking at the datasheet for the device the setting current (Is) can be from 20-100A or from40-200A. There is no Lo set or Hi set in the CPDDB, but we can emulate the available

settings using current multipliers.

I>/t> Small Step Values tab



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The minimum I> multiplier would be 20/200=0.1. The maximum I> would be 200/200=1. TheStep Values can be any value between min/max. Looking @ the datasheet we have chosen asmall step value of 0.02 (this will give a step setting every 4A@11kv e.g. 4/200=0.02) toensure that all of the Is settings in the available range can be set. Note this may lead tosettings in between those actually available on the device. So you would need to check theresulting settings Lastly set a default value to be used for the I> current multiplier when thedevice is fist used, so it has some valid value when the device is first chosen. We havechosen a mid range value of 0.5 ( e.g. 0.5* 200)=100A(Is) @ the primary 11kV voltage. Nextwe will need to look @ the t> time multipliers. The t> setting on the Device are available

between 0.05 and 0.6 (on x1 setting) and 0.5-6 (on the x10 setting). The actual time multiplierused will also depend upon the type of curve that selected by the user. We have directlyentered these values and again chosen a small step value of 0.05 which will hence allow t>values of 0.05,0.10,0.0.15 …0.6. Again this may allow 'in between' values to be used whichcannot be set on the device, and user will need to check if these values are available or usethe nearest available setting . With this device there is a high set x10 so when selecting 0.5as your t> use would actually choose 0.05, and the x10 High set switch of x10 to give 0.5. Again we have chose a mid range t> lowest value of 0.2 as a sensible default value. Noteadjustments to the t> stage may need to be taken into account see step 3 for more details onthis.

I>>/t>> High Stage Defaults tab

Use this tab to setup the high stage defaults I>> and t>> This device is available with high-stage trip current settings of between 3xIs -20xIs. In our case 'Is' is equivalent to I>. So wehave simply entered values between 3 & 20, with a step value of 1. Giving a setting range of3,4,5,6,7….20xIs. We have also chosen a sensible mid range value of 12xIs for our defaultvalue. The t>> values are directly entered in mS as these are actual trip values in ms ratherthan time based multipliers. Egg the device has t>> setting of between 0.03 (30ms) and 1.5

sec (1500ms), we have chosen a step value of 30ms (0.03s) allowing a setting range of0.03,0.06,0.09,0.12…1.5s.



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I>>>/t>>> High Third Stage Defaults tab

Use this tab to set-up the Third stage I>>> t>>> details. For this particular device there is noadjustable 3rd stage, so we will enter a single value for I>>>, as the unit would beinstantaneous at all values above the maximum I>> setting.The maximum I>> is 20xIs so we

have entered 20 as our maximum value, as well as the minimum value. In a similar mannerthe 3rd stage is not adjustable so we have used the lowest t>> setting of 30ms. As a fixedvalue.

I>/t0> Earth High Earth Trip Stage Defaults tab

Earth Trip Stages Io>/to> and the high set Earth Trip Stage Io>>/to>> The software alsoallows you to enter time & current multipliers for the Earth fault trip unit supplied with mostmodern HV relays. At present a study of Earth fault discrimination is not currently undertakenby the software. However this will be an up & coming new feature, and it would be sensible toset-up the details for the Earth trip stages. In the same manner as for the Over-current relayvarious functions and multipliers need to be set-up. See screen shot for the entered details ofthe Earth Trip stage of the VIP relay



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I0>>/t0>> High Earth Trip Stage Defaults tab

Definite Time function is used by both the over-current I> and the Earth Trip relay, and inmost relays it uses different time settings than those for IDMT curve functions. So separatetime setting will need to be set-up for the relay, in order for the software to model the definitetime functions correctly . This last setting will be found on the Io>>/to>> stage. Looking at themanufacturers spec sheet the definite time function is available with time settings of between1-3Secs

The following graph shows the result of the settings using this device:

Using the database in 'Discrimination Study' mode. The defaults entered for each stage, arethose used by the software, when the device is first used. Thereafter the user can interactwith device by changing any of the settings for this device, along with the desired curvefunction etc. These settings are saved as part of a discrimination study, and the devicesettings can be shown as amps relative to the HV (11kV) , or at the LV 400V scale. Hvdevices are always drawn on the graphs at a common LV scale so that LV/HV devices can be

shown on the graph as the same time and at the same scale, to allow co-ordination studies tobe carried out.



101

Adding databases together.

You may wish to mix and match different manufacturers databases together so you can usethem on a single project. To do this, select the one of the databases you wish to use, select“file” “save as” and give it a unique file name. Go to the “file” menu and select “Import

database” .Select from the list the manufacturers’ database you wish to add and this willdisplay a dialog box diving the import status (Fig 113)

Import Status

Select the “Import” button and the range of breakers will be added to your database. You cancontinue on this basis, adding as many manufacturers into your database as you wish.If youselect the “Import Selected Devices Only” option this will present you with a listing of breakersyou wish to import should you not wish to load the entire range. Select the required breakersfrom the listing and import.

Discrimination Study

The CPD database has a facility to enable you to perform a discrimination analysis of anexisting range of breakers, without having to set up a complete wiring project. This enables ananalysis to be undertaken of an existing installed system by introducing replacement breakersand their discrimination effects.

To perform the analysis, enter the databases as previously mentioned. Go to the “File” andthen “new study” and give your file a study file name which will have the file extension *.DCR.The entry dialog box will appear where you need to fill out the details, working from the mostupstream DB back towards the supply, entering the breaker type, size and fault level (Fig114)



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Discrim curves

Once the data has been entered, the discrimination curves can be viewed (Fig 115)

As can be seen from the graph above, the LV 1000A ACB does not discriminate with 50A HVfuse in Ring main unit. This can be resolved by making adjustments to the LV ACB.Theadjustments can be made resulting in the following discrimination graph.fig 115a

As the expected load on the transformer is approx 800A we can wind down the LV ACBsettings accordingly. This results in satisfactory discrimination between the ACB & Ring mainunit fuse as can be seen on the graph. Lastly we are using a Schneider Electric VIP300 HVFeeder Relay as our Circuit protection for the HV Feeder to the Site. This can be set downfrom its maximum settings of 200A @ HV as the only load on this section of the HV Networkare two 800KvA Transformers. Each transformer would draw approx 42A FLC @ 11kv. So wewould want to set our main feeder to a setting current of 84A as a minimum, and if we wish toallow for temp overloads we could allow say a further 15% so 84 x 1.15= 96.6A.



104

adjustment

HV static relay adjustment

As above,we can see that the VIP 300 Relay is available with several curve functions. Thedefault Standard Inverse function will likely not give satisfactory results with a fuse eventhough we require a setting current of 96A. Adjusting the device down to 96A using the I>adjustment will give us the correct basic current settings as per Fig 115c



105

further adjustment

If we tick the 'HV' box we can see the current settings in respect to HV amps. We can seewith I> set at 0.48 we achieve an HV setting current of our desired 96A. However using a StdInverse characteristic, does not give useable discrimination with both the HV & LV devices. Ifwe select VI or Extremely Inverse (EI) then we will be more likely to achieve discrimination.

EIC adjustment

As can be seen above, using an Extremely Inverse Curve with 0.3t> and I> set at 0.48 (96A)achieves discrimination at all expected fault levels. It is normal to try & achieve between 0.2-0.4 secs of separation between any of the curves depending on the device type. Note thebottom of the screen always shows the time/current of the cursor position, so its easy to seethe degree of separation between the devices, by simply moving the cursor to the curve at the

closest point of separation. As can be seen using the CPD database in this Stand alone mode

allows you to model HV/LV protection settings without the need to model the system inWiring, and also allows you to show multiple HV upstream devices in the same study which is

not possible when using discrimination studies in conjunction with the Wiring program, whichwill only allow a single HV device per project.

The discrimination study can be saved and recalled at a later date within the CPD database.



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CABLE DATABASE

The Cymap cable databases are all to the 17th Edition 2008 regulations. Manufacturers tables

may differ from the publicised IED17th Data. Manufacturers cable sizing information can beentered into the Cymap cable databases.To enter the database, go to the Cymap main menu and select the Databases icon fromwithin the electrical area. Select “Cables” from the pop up menu. Select “File” and then

“Open”. Select the file of choice from the “cables” folder and enter the database. (Fig 116)

On entry into the database, the cable selection table appears where you need to select thecable type, it’s installation method and the core type.

Once the selection is made select the “Edit” button and the next Cable entry dialog boxappears.

The information contained here relates to the physical properties of the cable such as thecable material, the CPC type and insulation etc. To view the sizes, select the “sizes” buttonwhich will display the all the cable carrying capacities for given sizes etc

Cable Entry details



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CHAPTER 9 - WIRING MODULE

To enter the Wiring program select the “Wiring” icon and the empty screen area of the Wiringprogram appears.

Go to “File” and then ”New” , you will get the cable standards dialog box along with theintroduction.

The general information dialog box will then appear with a selection of tabs which need to befilled in.

General information

Each tab needs to be accessed and the information entered. the default Sub main and FinalCircuit details need to be entered to determine their respective volt drop and cable entrydetails. These are merely the default values to assist in data entry.

Once the details have been entered, you can now start creating your cabling schematic by

placing the boards and connecting them with the sub main cables. The first board to beentered is your main LV incoming switch board.

To place the board, select the “Insert” menu than “Main Boards” then “Standard”.

A Board appears on your mouse cursor. Place the board on the screen by clicking the lefthand mouse button. You will then see the Board Entry details which need to be filled out. Thecommand remains active until cancelled by selecting the “ESC” key on the keyboard. Place 2boards the initial LV switch board and another MCC (motor control centre) board



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Placing Boards

Cymap draws a distinction between Main boards and Final circuit boards which have finalcircuits originating from them.

ADDING MULTIPLE TRANSFORMERS

Multi System Supply Design Considerations

The program is designed, to calculate cablesizes and perform all calculations based on eachindividual single system which form part of an intergated supply transformer configuration,where groups of transformers are set up to run under normal operating conditions.This allowsthe engineer to consider "what if" scenarios based on transformers being coupled together orfor other alternate supply arrangements

When calculating a particular system, you will be invited to select the system to be calculatedby selecting its supply point. This supply point uses the fault levels generated from the supplytransformer plus any others, connected on line, via bus couplers. This will result in only the

cable sizes being shown for the particular system calculated, but the generated faultcalculated from the multi supply condition. Each system has to be calculated seperately andthe program has been designed to clear and/or make the engineer aware of any faults on asingle system by system basis.

The program can be used to analyse the effects changes to the supply conditions have oneach seperate system, so the engineer can make a decision to make sure the cables andbreakers used are suitable for a range of supply conditions that could be encountered basedon design supply switching arrangements. The program will behave slightly differently undermulti supply conditions in terms of auto sizing of CPCs for example. The program will alert theengineer to the problem and its up to the engineer, in this case, to fix the CPC size so anyfaults can be cleared under a variety of supply scenarios to satisfy various "what if" scenarios.In this case don’t expect a "separate" CPC to be sized for you as it would with a single entry

system. It’s better from a design perspective to allow the engineer to make the consciousdecision by fixing a CPC size that satisfies all supply conditions as opposed the the programcalculating automatically.



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When calculating cable sizes only the cables associated with the supply point the engineerselects, will be shown. For example for a twin transformer supply the engineer will have tocalculate twice in order to view the cables results, once for "system1" and once for "system2".Each set of calculated results can be printed out each time with the supply referenceappearing on the requisite printout.

You can add more than one supply point to a system (up to 6)

This entails adding a selection of Bus coupled Boards, the interconnecting bus coupler switch,the busbar connections and the separate feeds to the Bus Coupled Boards.

Procedure

First of all as before enter the transformer details for the first supply as below

Complete the General Information in the usual way.

The following items are entered from the INSERT MAIN BOARDS MENU in the followingorder

SUPPLY TRANSFORMER

Insert this item and place it on the layout and then fill out the transformer details for thesecond supply



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BUS COUPLED BOARDS

Enter both Bus Coupled Boards filling out the details as below

INSERT CABLES

Connect both supply cables between the supply transformers and the BCBs , The greenstatus f the transformer supplies implies they will both be operational to generate the

combined fault level



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BUSCOUPLER

Add this between the 2 BCBs. Note the status to switch the coupler to open/closed circuit(On/Off)

BUSBAR CONNECTORS

Add the 2 short bus connectors between the switch and each BCB. Select ADD CABLE to dothis and use CUBBT as the preferred option

When connecting in the bus section you need to make sure you select the lower half of theboard so the program knows you are adding a bus coupler and not a submain cable

You will now have the completed arrangement



113

You may find it useful to take a copy of the project at this stage and call it “Dual SupplyTemplate.CYW” .This will save you going through the above procedure everytime you requirea dual supply feed to your project. Simply open the template file, save as , giving the file aunique file name and continue with the project.

To add more supplies repeat the process by interconnecting the supplies and bus coupledboards.

You can then double click on the bus coupled switches to open and closing them , and alsoactivating/de activating the transformer feeds to effect the generated fault through the powerdistribution network.

Now you can add final boards using 2 approaches. First you can add a final board as ageneral load so you can engage in a submain sizing exercise, with a view to refining theboards at a later date.

To insert boards select “Insert” “Loads Boards” “Final board” and place the board on thescreen as you did previously with the main boards. Once placed, the board entry details willappear on the screen which need to be filled out.

If you wish to enter the board merely as a load simply enter the board details along with theload and power factor. Continue adding more general loads (Fig121)

Load entry details

Setting a board up from scratch

To set up a Final Board from scratch, select OK as above. You now need to enter a sub maincable feed from the preceeding board to this one in order to gain access to the board.Select INSERT – CABLE and route the cable into this board...the ways button now becomesactive...select the ways button



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Add the board to the screen layout as before, but this time instead of entering the load details,select the ways button and this will transfer you to final circuit mode. You will then see theFinal Board General details appear (Fig 122)

Board general details

Enter the data on the General Details dialog box. If wishing to have mixed TP and singlephase ways you need to make sure that when selecting the circuit type, you select TP&Noption so you can mix and reset the ways.

You will also need to enter the estimated fault level in order to proceed with the board. Later

on when the board is joined into the system, the fault levels and earth loop impedancesentered at the supply will filter down to the board and the calculations adjusted accordingly.

Select the range of breakers you want to use on the board as the standard range. Also thepremises type needs to be selected as this will affect the diversity from the 16

th edition. Note:

if you select any of the premises types such as Dwelling, Shop/Office/Small Hotel the ability toset your own required diversity will be disabled and you wont be able to view the Diversitysection (Fig 122)

Select “OK” button and the board details will appear as a graphic representation of thedistribution board with all the circuits set up as green TP&N circuits. (Fig 123)

You will now need to consider the phasing arrangement on your distribution board. To switchfrom TP/TP&N ways to single phase, go to the “Edit” menu at the top of the screen and thenselect “change phase” select the way to wish to change. You will then be asked the wayconfiguration in a pop up dialog box .Make the appropriate selection. Continue this processuntil you have set up the board as you require it

The command will remain active, so make sure you press “ESC” to cancel and reset thecommand



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board details.

Once you have set up your Board with a mixture of ways, you should now have a boardsimilar to the below.

Mixed way board

Entering Way Details.

To enter the way details, double click on the way and the Way Details dialog box appears asbelow.



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To enter the load details select the “load details” button and select the type and number oflight fittings used note the “circ inc bath /shower” for RCD protection in these areas (Fig 125)

Load entry details

Once the load details are entered, move on to the cable details entering the cable length,

CPC type and configuration along with the cable containment used. You can also fix the cablesize here if necessary. (Fig126)



117

Cable details

The CPD entry details also need to be added .A word of warning here. If the fault level atthe board is an estimate, be prepared for breaker failure reports, if the transferred faultlevel from the supply exceeds the rating of the selected breakers. (Fig 127)

Breaker settings

The breaker selected can be fixed along with its RCD and or SPD ( surge protection device)setting in accordance with the 17

th Edition and whether it is to be used as a motor fuse.

Special Sockets

The special sockets way details can be used for sockets other than standard domestic sockettypes. Fill out the details accordingly. (Fig 128)



118

Special sockets

Enter the cable and CPD details as previously mentioned.



119

Standard Sockets

Enter the Standard Socket details by selecting the number and type of sockets. You can useany previously set up diversity by setting up the “Use Diversity from Board” option

Standard Sockets

Cooking Circuits

Enter the rating of the cookers. The diversified load will be applied depending on the premisestype and whether a socket outlet is used or not

Cooking circuits



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Stationary Equipment

Go to the listing of Stationary Equipment items and enter the load required along with therating and power factor.

Stationary equipment.

Spare Capacity

This enables you to enter any envisaged spare capacity so any future loading can beincorporated in the sub main cable size.(fig 131a)

Once complete, the board should look something like the below



121

Board details.

Edit menu

Edit Copy Way this allows you to copy the contents from one way to another for ease ofdata entry. Follow the command prompt. Select the way you are copying from and the wayyou are copying to. This command remains active .Press “ESC” to cancel command

Move Way This uses the same principle as copying a way except you are moving the way.

Swap Way This uses the same principle as copying a way except you are swapping the

ways around.

Reset Way this function allows you do reset the data on the way, whilst leaving the waysetup.

Change Phase this function allows to change the phase arrangement of the way.

Join This function allows you to join the board into the network, s the fault level etc is passeddown to the board giving full integration with the network of cables and boards. YOU MUSTJOIN BEFORE EXITING TO SUBMAIN MODE

Once complete you need to exit to the SUBMAIN mode, so you can continue with cablenetwork.

TO GO BACK TO SUBMAIN MODE SELECT “FILE” “EXIT TO SUBMAIN”DO NOT ZOOM OUT AS YOU WILL STILL BE IN FINAL CIRCUIT MODE.



122

We should now be back at the submain mode.

Submain mode

Copying Boards

You can copy the contents of one board to another .Go to “edit” “Copy Final Board”, select theboard you are copying from and then the board you are copying to .THE COMMANDREMAINS ACTIVE SO “ESC” WHEN FINISHED

A copied board can be identified by a line strike through all the ways.

Importing Boards from Cymap Electrics.

You may be working in conjunction with the Cymap Electrics program. To import boardsselect the “file” “Import” and a sub menu will appear where you select the boards you want toimport from the selected file.

Inserting rising/horizontal bus sections

If you are looking at modelling a rising busbar, for example use the “insert” “busbars” “bustaparray”



123

If we consider the scenario below…

We will be introducing a tap off point to 3 boards on the LH side of the boards, but tapping offon the RHside of the bus tap to each board, so we have selected the fact that it is , from thedilog box:

Vertical bus tapsWe have 3 bus taps

Default bus riser length (floor heights..?)Taps on right ( positioned on the rhs of tap off)

We then click on the start point of the riser section and click on the second point of the uppersection. This creates the riser configuration as shown above

All you then do is interconnect the cable between the tap off to the boards and the supplyboard to the bottom busbar section.

Motors

We can now add in some motor loads from the MCC. To do this select “Insert” “Loads/boards”

then “motor”



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A motor logo will appear on the screen which you need to position and then will need toconnect the cable from the board to the motor. Once connected the cable details box appearswhich you need to fill out (Fig134)

Once the cable details have been completed the motor details dialog box appears. You have2 choices, either you can enter the motor load details which will use a generic database ofstarting types etc OR you can select the “database motor” and then select from publishedmanufacturer’s information based on the selection criteria in the entry box (Fig 135)

Motor cable entry

Motor Load details



125

Once the motor details are entered the calculated currents, selected CPD sizes etc arecalculated based on the starting method. Also you can decide whether the starter ispositioned at the motor end or the board end by selecting the “Starter at motor end of cable”option

Motor results.

ADDING CABLES

We are now able to produce our network of cables by selecting the “Insert” “Cables”command and then select the board way and you will see a connection dot appear. Route thecable and then select the board/load you are connecting into. Fill out the cable details beforemoving on to the next cable. Remember the command is active so you don’t have to goto the “Insert” menu every time you wish to add a cable.

ADDING MAIN SUPPLY CABLES/GENERATOR & CALCULATING

You may wish to add a Generator/UPS to your system. To do this you need to firstly add aswitch between the Supply and the first Switch Board. Once positioned fill out the switchdetails. You will then need to add the generator. Select the “Insert” menu and then “MainBoards” then “Generator” position the generator on the screen to the bottom left or right side

of the Supply and then fill out the generator details (Fig 137)



126

Generator details

You will now need to add cables from the supply and generator into the switch and then fromthe switch to the Main Switch Board. You can also add generators to boards further down

stream as separate UPS supplies if necessary (Fig 138)

Now the cable network is complete the calculation can be run either on a submain basis(display, calculate mains) or the complete system including final circuits (display ,calculate all)

Fig 139 shows a few calculation problems which have been flagged as highlighted in red.These bring to your attention there are problems which need to be rectified. The programwon’t do this for you , it’s up to you to recognise the highlighted problem and rectify it.

To find out the nature of the problem, select “Display” then “Results” and then select the load/cable presenting the problem. You will be given details as to the nature of the problem.

For example motor “Pump2” has a problem which is discrimination oriented due to the sizing

of the breaker. Therefore you need to go into the cable noted in the discrimination failurewarning message and change its size.

You also need to enter the Final Distribution Boards and identify the problem circuits ashighlighted by a dotted line and rectify the problems. If discrimination oriented you can run thediscrimination calculation from within the final board and view the curves to see where anyproblems may lie ( Fig 140) there are no problems with the time /current curves, but bychanging to the energy let thro curves, (Fig141) you will identify the problem. Look at breakerno 2 and you will see the pre arcing i2t lies just the wrong side of breaker No1 so breaker no2 need to be increased inside. You can do this from within the discrimination study, or on thesubmain cable serving the board on the overview



127

Cable network completed

Completed calculation



128

Discrimination curve check

Pre arcing 12t curves



129

Once calculated, you may wish to edit certain cables etc. To re enter a cable , simply doubleclick on it, as you would a board.

As you build up the network with more loads and cables, new problems may be introduced asnew loads are added which may effect the cable size ranges, breaker size ranges etc.

You can now view the results from the “Display” then “Schedules” menu so you can displaysubmain cables and/or the loads (Fig 142/143)

Cable Schedules

load Schedules.

TOOLS MENU

Reset Parallel Cables - This will re-set any cables that have been set up as parallel cableson the whole project

Reset Cable Core Types – This will set all core types to “Auto” .Any fixed cables will thenrevert to the “Auto” setting when calculating

Check 17th

Edition RCDs – This will allow you to add to, and advise you of, circuits requiringRCDs on a project. This will typically be used when updating an existing project where thereis now a requirement for RCDs on lighting circuits



130

PRINTING RESULTS

There are essentially 6 options when printing out results.

SCREEN prints out the currently selected screen display

FULL LAYOUT prints the entire cable network you have created

SUBMAINS allows you via a menu to printout the Submain results. Make your selections from

the menu (Fig 144)

submain results menu

FINAL CIRCUITS allows you to printout, via a selection menu final circuit results.

Final Circuit menu



131

BILL OF QUANTITIES allows you to print a complete bill of quantities

TESTING allows you to print out test certificates for commissioning purposes to the NICEICstandards

DXF allows you to create a DXF file of the cable network.



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Electrical Testing Module for Cymap Wiring

Since the release of Version 10.1 of Cymap, there is a full testing inspection and reportingmodule available to Cymap Wiring, for all Electrical users of the software.

The software can produce full Section P Testing Certification, as well as keep track of faults,repairs, time and materials.

To use the Testing module you need to have already set-up an electrical schematic fromwithin the Wiring program (see chapter 8 of the Existing Electrical Tutorial on how to achievethis). Once this is achieved, you can enter test data to produce testing certification for a newinstallation, or even routine testing data on an existing installation. In this example assumewe are entering the test data for a new installation.

We will enter the relevant project data, board and way testing data and finally produce thecertification.

Entering Project Level Testing Data

From the Edit menu select General:

This will display the General Information dialog of Wiring, which nowalso contains all of the project level data that you will need to enter tocomplete your certification. The first four tabs – General, Sub-mains,Final Circuits and Defaults, should already be set-up. You need toensure that the Earth type is set-up; eg TNS/TN-C-S etc.



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The required project level testing data is on the last four tabs of the dialog. We will firstexamine the Project tab:

Entering Project Reference; Inspection/Certification Date and Re-test period



134

1) Enter a project ref no (this reference number will appear at the top of each printedreport)

2) Enter the Inspection/certification date3) Enter a recommended re-test period (in years)

This information is all used in the certification documentation.

Entering Project/Client addresses etc

Next click the Add button to add the addresses. A number of addresses can be set-up to beused in the certification documentation, as can be seen in the drop down list.

We will set-up the Client address. Type in the address and click the ‘Update’ button, to addthe address to the project testing database.

In a similar manner add the rest of the addresses and contact numbers to the database. Thiswill provide the address data for the certification. If the Client and Installation address are thesame, enter the same address twice in order for it to appear correctly in the certification.

Note that you must enter an Inspector record. As the name of the inspector is added to the listof testers available in the project for each board on the project.

Entering Installation Type and Earth Type arrangements

Now we will set-up the Installation Type. Let’s choose New from thedrop-down.

The installation Earth Type is TN-C-S, this will have already been chosen when setting up thebasic installation details on the first General tab. If this is not the case, select TN-C-S fromthe drop-down on the General tab.



135

Entering Main Protective Conductor Details

From the drop-downs select the Main Earthing Conductor Size, the Main Equipotentialbonding conductor size, as well as the insulation and conductor types as shown in the screen

shot.

You will also need to tick each of the Main Earthing and Equipotential Conductors to certifythat the connections have been verified; these will be ticked on the main test certificate.

Entering Supply Fault Levels

Enter the measured/tested values for the prospective Short Circuit, Ze (earth-loop at thesupply point, along with the Maximum Demand and the No of supply poles.



136

Tip:For an approximation of theMaximum Demand (allowingfor diversity) use the figurecalculated in the softwarefrom the Display menu – Results Summary. In thiscase a figure of approximately370A could be used, if

desired. Note: diversity for allfinal circuits as per the Wiringregulations, plus any sub-main diversity applied by theuser, is taken into account inthis figure.

Entering Indirect ContactProtection

This is the method generally employed for the whole installation. At board level each boardcan employ its own method. You also need to set the Frequency for the installation. Note :the greyed out items are no longer used by the current versions of the software (as testinstruments are selected at board level).

Entering Details of departures, Comments and Installation Description on Notes tab

Enter these details as shown. This is data which relates to the installation as a whole. Againnotes are available for each board



139

Setting up the Main Supply CPD Details

The Type and Size of CPD can be taken from the main supply cable on the network draw theDetails button adjacent to the CPDTick the Main Supply CPD boxThe Type, Size and description will be shown on the Section P test certificates.

Setting up Board Level Test Data

Now we will look at how to set-up each distribution board for which you require the design andassociated test data. Each board has its own level of test data and you can set-up localbonding, an area reference, a description of any work carried out, who tested the board andwhich test instruments were used. You can assign a failure for any board and also allocatetime and materials for rectification. Each failure can be categorised and each is given aunique code which can then be used to summarize remedial work for the whole electricalinstallation.

Entering Test Data for Main Distribution Boards

1) Double click the Main Distribution Board on the project2) Click the Testing button



140

3) Enter test results for Earth Bonding (main service and local bonding); separate fieldsare provided for Water, Gas, Other and Structure equipotential bonding.

4) Select the Testers from the drop-down list. Note: technicians/testers are set-up in the

General details for the project.5) Enter a description for Make, Type and Rating of Board.6) Set-up the Tested Date. Clicking the drop-down displays a calendar for you to select

an appropriate date.7) Enter the Measured Earth Fault Loop Impedance (EFLI) at the supply terminals to the

board.8) Enter a Re-test Period in years.9) Choose a method of Indirect Contact Protection. Earth Equipotential Bonding and

Automatic Disconnection of Supply (EEBADS) being the most common, but you canchoose from ClassII equip/non conducting location and electrical separation.

10) We can make a note of any equipment that may be vulnerable to testing, as well as abrief description of any work carried out specifically on this board.



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11)We

can assign a Pass or Failure status for this board. Rather than pass this board, wewill assign a Category D Failure to it, this can be printed out later. You can decide thecategory of any failure; you may decide that Category A should be for severe hazardsrequiring immediate rectification.

A - Immediate danger to life

B - Potential danger to life

C - Urgent

D - Routine; In Due Course

12)Board notes are stored in the Notes file for the project. However, when printing

Section P certification you can choose to include board and way level notes which will

also be printed out on your certificates.



142

Adding Test Instruments to the Project

Each project needs test instruments assigned to it. Once this has been done each board canbe tested by the selected instruments in the project database.

Adding a new Instrument:Click the Test Inst button on the Board Testing Instruments dialog box shown above, thenclick the Add New button as shown. Enter the Details for your test instrument.

We will set-up a multi-function tester, so we select Type Other from the drop-down. Type in

the details, manufacturer, serial no, calibration cert no etc, then click the Update button Thiswill add this instrument to the project database.

To specify that this instrument was used to test this board, or any other board, simply select itfrom the list of instruments and click the Add Instrument button. In our case there will only bethe one instrument we just added.

If you have added several instruments to the database, then any, or all, of these can be usedto test any board (subject to a limit of 5 instruments for each distribution board).



143

Entering Test Data for Final Circuit Boards

These are entered in exactly the same way as for a main distribution board above. However,to access the Testing dialog box for a final board, double click any final circuit board on thedrawing and click the Ways button.

Once the board is loaded, double click inside the board (not in one of the circuit ways). Thiswill display the Final Board General Details dialog box.

Click the Testing button and the Board Testing dialog will be displayed. This is the samedialog box as that used by the main distribution board discussed earlier.

Entering Sub-Main Ways (from a main distribution board)



144

Make sure no other dialog box or form is onscreen, then go to the Main menu. Fromthe Edit menu choose Testing to displaythe main Test Results form.

From the drop-down select your distribution board. All test data can now be entered for all ofthe ways for this board.We will enter the test data for cable 7 (the sub-main to our final distribution board). Note thefirst seven columns are already filled in with data from the cable network, eg Way/Phaseno/Circuit Description/Protective Device/Circ Length/Circ Type (SM = Sub Main)/Cable Typeand Size in mm2 and the CPC size.

Insulation Resistance:

For Three Phase Circuits, whilst more than three tests are possible only three are stored egL1/L2, L2/L3, L1/L3. For TPN ways you would also test each phase to earth etc. However,simply record the lowest three values for entry into the program. Note: values below 0.5M

Ohm will automatically highlight in red, as this is a failed value.

Earth Continuity:

This assumes the main supply is not yet connected. With the phase conductor bridged to theprotective conductor at the distribution board, the test value between phase and the circuitprotective conductor should be entered at the furthest point on the circuit. It is assumed thatno supplementary bonding is connected at this stage in the test. This should give a closereading to the R1+R2 value for the circuit.

Earth Continuity of Ring Circuits:To check the continuity of the circuit protective conductor, connect the phase and CPC ofdifferent sides together (P1 and E2) and measure the resistance between phase and CPC of

the other side (P2 and El). The result of this test will be a measurement of the resistance oflive and protective conductors round the ring, and if divided by four (R1+R2) should closelycompare with the values calculated by the software.



145

Way Earth Fault Loop Impedance:

Enter the measured Earth Fault Loop Impedance at the furthest point on the circuit. Thedisconnection time of this way is calculated based on the current CPD. If the circuit type isSockets, it must clear within 0.4 seconds, otherwise it must clear within 5 seconds. If the wayfails these checks the EFLI will be highlighted in red italic and you will be unable to pass thecircuit. No allowance for special locations is included. This test is passive; it will only fail theway if it is able to calculate the disconnection time and the above parameters are not met.

Ring Circuit Continuity:

This test confirms that complete rings exist and that there are no breaks. To complete the testthe two ends of the ring cable are disconnected at the distribution board. The phaseconductor of one side of the ring and the neutral from the other (P1 and N2) are connectedtogether and a low resistance ohmmeter used to measure the resistance between theremaining phase and the neutral (P2 and N1).

RCD Tests:

From the pull down, youcan only choosePass/Fail. Note: for final

circuit boards the fullrange of RCD tests canbe stored and examined.To access this, choose afinal board from the list ofavailable boards, then :

1) Select the Waydialog (highlighted)

2) Click the Testing button3) The Test Results for Way dialog box appears, click the Rcd Tests button4) Enter the Pass/Fail status for each of the RCD tests

For a general purpose type of RCD which is intended to operate very quickly at its ratedcurrent, the following tests are recorded:

Fn Test, ie the in-built self test mechanism functions correctly.

50% of the rated tripping current applied for 2 s should not trip the device.Reversing the phase of the fault can also be recorded. Eg the 180 degreephase angle test can also be recorded, if the test instrument supportsthis.

-100% of rated tripping current, which should not he applied for morethan 2 s, must cause the device to trip within 200 ms (0.2 s). Again the

180 degree phase angle can be recorded.

-150mA Test, where the device is intended to provide supplementaryprotection against direct contact, a test current of 150 mA, applied for nomore than 50 ms, should cause the device to operate within 40 ms. Again a 180 test can be recorded.

Lastly the actual 100% trip time in mS can be entered.

The full range of tests for a RCD can be stored for each final circuit way that is protected by aRCD.



148

Polarity Test:

Lastly you can record whether Polarity for this way has been proved or not. This is essentialfor all single pole circuit ways.

The choices are as before:

--- Not examined

Pass

Fail

N/A Not Applicable

U/T Untested

Entering Final Circuit Ways

This is achieved in the same manner as for Main Distribution Board ways.However, you can directly access the Testing and RCD Testing dialog in final circuit modewhen viewing any final board way. Click the Testing button to access the same dialog boxes.



149

Producing the Testing Documentation

Since the Introduction of Version 10.1 Wiring, there have been a number of choices for theoutput of testing documentation. Each has its own unique purpose.

Testing

Standard Certificate:

This will printout one of the early original test certificates from thesoftware that provides a Standard Test Certificate, the Fault CategoryDefinitions and the Particulars of the Installation (Voltage/Phases/MainEarthing arrangements etc).This will also output a summary of tested faults and a summary pagefor each distribution board.

Full Certificate:

As per the Standard Certificate but also includes the network

schematic single line diagram.



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Fault Report:

Selecting this printout option shows the Testing Faults dialog. You can select which board toprint, as well as only faults of certain Failure Code etc.

Try experimenting with single page per fault and page per fault reports.

Above is an extract from a typical Fault Report which can be obtained for every fault on thenetwork. Wiring can be used as an excellent FM tool for engineers and contractors alike.



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Form F and Form G:

These are proprietary forms. If the format of these forms suits your purpose then they can beused. Try printing each form, you can preview these before printing them out. You can printall boards or just a single distribution board

Form F is the Installation Record:

Form G Is the Inspection and Test Record:

Section P



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Since January 2005 the Building Regulations have required Test and Inspection certificationto be produced for all new residential property. These printed reports will allow you toproduce the necessary documentation to meet the requirements of Section P of the BuildingRegulations. These reports can also be used for any type of LV electrical installation.

To output the Section P reports simply choose File, Print, TestResults, SectionP

If the system needs to carry out a calculation, then you will be prompted to calculate. Once a

valid calculation is carried out, you will be presented with a dialog box asking which reportsare required.

Form1: used for an Installation where oneperson is responsible for the Design,Construction and Testing of theinstallation.

Form2: used for an Installation wheremore than one person or company isresponsible for the Design, Constructionand Testing of the installation.

Form5: a Minor Works Certificate. Only asingle way on a board is printed for thistype of certificate.

Form 3: is the Schedule of InspectionMethods used. You can choose thenumber of schedules you want to print outto accompany the main certificate. This isa manual tick box form.

Form 4: is the main test results report, with a minimum of one page per distribution board. Itcontains the test results for each board and way that you have chosen to print out**.

By selecting the appropriate check box (above) you can choose to print out any of the boardand way notes that you have entered for the installation. Before printing out these lengthyreports it is sensible to preview them as this will enable you to review the report and makeany changes before printing a hard copy.

**When outputting Section P reports, you can choose to print any, or all, of the boards in theproject - you will be prompted (shown below).



155



156

Form 4 Schedule of Test Results:

There will be a minimum of one page per board for this report.



157

CHAPTER 10 – DXF/PLOT PROGRAM

Having designed and routed the services using the DXF floor plans it is sometimes necessaryto either plot directly from the program or transfer across to CAD by creating a DXF file of allthe services.

The program to use is the DXF plot program.

Select the DXF plot icon from the Mechnical tab - Programs section.

Go to “display” then “options” and a selection dialog box will appear. From the tick boxselection list, pick the services you want to export across. To add more explicit information,select the associated tabs and make appropriate choices.

DXF/Plot selection dialog box

Once the selections have been made, the combined services selected will be shown on thefloor plan. It may be necessary to sometimes omit the floor plan when creating the DXF file asthere may be problems in the re interpretation of the DXF file. This doesn’t cause a majorproblem as you can DXF the services only into your CAD system and save this as a DWGfile. You can then insert or X ref the services only onto the original template floor drawing file.

The text height can be adjusted to suit from the options dialog box (see above)

You may find the drawing somewhat cluttered, so it’s best to experimen t with the differentoptions to determine the best services combination to export to your CAD system



158

Fig – 117 Services DXF

Once you are satisfied with the output, you now need to move to the “file” then “DXF outputmenu” this will display the DXF output dialog box (Fig 118)

DXF Output

The program generates the DXF file name using the project file with the DXF extensionattached. If you wish to change the DXF file name and location, then you can do so at thispoint.

The ability to produce 2D or 3D wire frame layouts can be determined by the Output Modeyou select. If 3D is selected This will export all floors of the building layout and enable 3Dviewing within your CAD system. This will only produce a wire frame 3D view and not a full 3Dinterpretation of the exported services. The layer names can be edited by selecting the “LayerNames” dialog box (Fig 119). The default generic layer names can be used, or you can insertyou own layer names to suit your particular requirements. Once all the selections have beenmade, select the “OK” button and the DXF file will be created in the stipulated location.



159

DXF Layer Names.



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CHAPTER 11 - SERVICE PACK APPENDICES

17th Edition of the Wiring Regulations updatePublished 17th Jan 2008, first compliant systems/Installations to be designed after

30thJune 2008

Background:

This document details changes made to the software (as of April 2008) for Service Pack 1 ofCymap 2008.

Summary:

The 17th Edition of the Wiring Regulations is a major update with significant changes

that will affect much of the Wiring software and require fundamental calculationchanges to cable sizing, volt drop and disconnection times, it will require new cabledatabases (103 Il lustrated Installation Methods), and new types of load for non-linearloads etc.

There are many new requirements for sections 701-721 (SpecialLocations/Installations) these are not specifically addressed in the software(with theexception of Bathroom/Shower area’s), but systems in these area’s can be modeledin the software, if care is taken. And ‘Special Location’ is chosen when adding Finalcircuits to these types of area.

There is another new section 443 Protection against over voltages of Atmosphericorigin (or due to switching). This new section deals with risk analysis & requiredimpulse withstand voltages of equipment. Surge protection & risk assessment is alsorequired by a new BS & IEC standard on lightning protection. This new section willbe looked at in conjunction with the new BS EN 62305. Currently no changes havebeen made to wiring to meet these requirements.

The remainder of this document outlines the Changes made to the ‘Wiring program’for the I7th Edition Release of BS7671.

Upgrading old Projects

Wiring Project Files (CYW).

As the 17th edition has numerous changes which have affected basic cable sizing selection,

Volt drop limits and new reduced Earth Fault disconnection times as well as modifiedmaximum earth loop Impedances you may wish to open previous project files in the 16

th

Edition of the Wiring Program. Understandably opening a legacy project file will likelylead to modified or different cable results than in a previous version of Wiring. Cymapnow ships two versions of Wiring. The original 16

th Edition version ( only now directly

accessible from the Electrical menu ), as well as the 17th Edition Cable sizing package. The

default start-up version will now always be the 17th edition version.



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Wiring 17th Edition will check the version of the file when you open any Wiring project and

you will then have two choices:

YES = Open the file in the 17th Edition of Wiring. Once you do this and save the project. It

will no longer be able to be opened by the 16th Edition version of Wiring, and likely will

contain differing results than with previous versions.

NO = Open the File in the 16th Edition Version of Wiring, this will ensure you can open

and continue to use existing project files without any changes affecting previouslycalculated cable sizes & calculated results. We recommend this for any legacy projectfiles that do not have to comply with the 17

th edition.

If you choose option i)(“YES”) Your project file will be opened in the existing 17th Edition

Cable Sizing program. A)Check the Cable Database used by the project is a 17

th Edition Compliant cable

database And you can continue to use this as before.

IF you choose option ii)(“No”) The software will open the 16th Edition Software

IF it is not a 17th edition cable database. Then you should either change the cable

database to the new standard 17th Edition Cable database “BS7671_17th + ERA

2008.DBY. Note if you have any user entered cables in your cable databases, these maynot be present in the new cable database. But these can easily be added. (See PDFTutorial in the Help folder for details on how to do this)

Alternatively you can open the cable database used by your project file in the Cabledatabase program, and re-save it preferably with a new name. This will allow you to carryon using the old cable database for any legacy 16

th Edition projects. You can then return

to the Wiring program(Edit General Dialog box) & specify your newly re-named cabledatabase file as the project cable database.



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B) Check the Circuit Protective Device Database is a 17th Edition Compliant

database. The new format CPD databases have specific types for fuses &mcb’s defined in them to allow the appropriate maximum Zs values to belooked up from the relevant tables in the new edition of the WiringRegulations. We have updated all of the most commonly used CPDdatabases with these new definitions. And the simplest method is to use oneof the newly updated databases. These will be found in the \DB\CPD folderof your Cymap Installation & will generally be given a file name ending in

“_17” so they can easily be identified as 17th Edition versions.For example the Eaton 2005.DBZ is a 16

th Edition CPD database. But the

Eaton 2005_17.DBZ is the 17th edition version of the same database.

To stop thewarning abovebeing shownwhen you nextopen theproject, youneed toreference theupdateddatabase fromthe Edit Generaldialog box ofWiring. Whereboth the cable &CPD databasescan be re-referenced.

C)When you next hit ‘Calculate Mains’ or ‘Calculate All’ the software willautomatically apply the new requirements of the 17

th edition. However if your project

was a legacy project started in the 16th Edition Version of Wiring there will likely be a

number of final circuits, that under the new requirements that will require the use ofan RCD. Of 30ma or less to be applied. On first opening a file that was created in the16

th Edition version, a check will automatically be made of every final way.

The software will prompt you if changes need to be made. We recommendthat you accept the changes. You caneither accept or reject each change oryou can choose to accept all changes.

Choose CSV if you want to output the results to a text file for later reference/checking.

Finally you will be shown a review of all of the changed circuits which will allow youidentify which circuits have been updated. If you choose not to update the Finalcircuit ways to use RCD’s you can start this process manually at any time from theTools menu choose ‘Check 17th

Edition RCD’s’.



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Detailed changes Completed to Cymap Wiring 2008Service Release 1.

Chapter 41

Final Circuit Board Mode(RCD requirements):

30ma RCD’s will automatically be applied to all new standard socket outletcircuits, where used for outlets <20A e.g. Standard Ring/Radial Socket outletCircuits.

For Stationary equipment circuits intended for mobile use with an outlet rated<32A a similar RCD will also be applied to circuits of this type.

Note for lighting circuits that feed area’s containing abath/shower, a 30ma RCD will automatically be appliedto circuits of this type as per the requirements of section

701.

If a special location is chosen for a stationary equipmentcircuit then a max disconnection time in accordancewith table 41.1 is enforced, and an RCD of 30mA isapplied to circuits of this type.

See notes at the end of this document regarding legacy16

th edition projects. As these may need to be updated

to comply with section 411.3.3

Table 41.1 & Sub Main items : Any item on the Sub-main layout thatdirectly feeds a load item e.g. a Generalload/Motor etc is now classified as a Final

circuit. Under earth fault conditions specialrules will be applied to circuits of this type.The maximum disconnection times will belooked up from Table 41.1 depending on thesystem type, the Uo voltage for AC systems,and if the circuit is less than 32A. Thetabulated maximum disconnection time willbe used. Previously all circuits of this typehad a disconnection time of 5 secs. ForCircuits that run thru an isolator. The cableto the isolator as well as the cable from theisolator to the load will all be considered tobe part of the same load, hence max

disconnection times from table 41.1 will beused. **



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Table 41.1 & Final Circuit items :

All circuit types feeding circuits less than 32A in final circuit mode will have todisconnect within the times stated in table 41.1. The only exception to this is a sub-main cable between a final board, which can still have a disconnection time of up-to 5secs during earth fault condition.**

** Note when the disconnection time is show with a ‘*’ this indicates that the max Zs isdirectly derived from one of the relevant tables 41.2/41.3/41.4.41.5. IF the Circuit

protective device type & size can be obtained from the Wiring regulations, then thesemaximum Zs values will be used in calculations. Where the device types or sizes arenot listed in the tables. Wiring will ’ look-up’ the disconnection time-current curve atthe max disconnection time from table 41.1, and evaluate this as an impedance. E.g.Zs= Uo/Ia (where Ia is the disconnection current at the max disconnection time). Thismethod will be used in all cases where the CPD cannot be found in the Wiringregulations generally for larger sizes of CPD or for MCCB’s ACB’s etc.

Chapter 44

Protection against Voltage disturbances and Electromagnetic Disturbances:

In the edit general details dialog,

there is now a new ‘HV Earthing’ tab.This section allows details on the HVsystem voltages and earthingarrangements to be set-up for theprojects sub-station (if applicable).Tables 44.1 (Power Frequency Stressvoltages),table 44.2(max permittedvoltages) are also stored in thesupplied IEE17.mdb data file.

Depending on the LV installation type& the HV Earthing arrangements themaximum HV Power frequency stress

voltages will be evaluated. Note theearth fault curve in figure 44.2 of theregulation is also included as aseries of time/voltage co-ordinates.Note in this release of the softwarethe user will be required to obtain thedisconnection time from the upstreamHV Circuit protective device.



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New error messages will be displayed by thesoftware on the system supply cable if thevalues taken from the graph in Fig44.2 or themax values from table 44.2 are exceeded foreither Power Freq Fault voltage (UF) orPower Freq Stress voltages (U1 or U2).

In future releases of wiring, users will be ableto select the Upstream MV/HV Circuit Protective device from HV fuses, IDMT (EM)relays & Static Relays, and hence have the disconnection times automaticallyevaluated by the software.

Appendix 4 New Install methods, & De rating tables

The 17th Edition of the Wiring regulations now

illustrates 103 Installation methods (and new referencemethods A-G), along with updated de-rating tables

New Versions of both Wiring & the Cable databaseprogram along with a new IEE17th database file. Willallow users to access all of the New IEE 17

th methods.

All methods (1-103) are now graphically illustrated,grouping Factors, temp table de-rating factors etc canall be viewed & selected for every type of cable.

A New IEE17 mdb data file is shipped with thesoftware holding every de-rating table in theregulations, along with disconnection times &maximum impedances etc.

Cymap datafiles Cables1 & Cables2.UKhave been modified to ensure de-ratingsusing the old methods will comply with

current IEE tables, as well as ensuringthe correct k Values & temperatures forcables are selected.

Grouping Factor tables for new cablescan now be user chosen from Wiringusing the new send factor method.Temp Table de-rating factors will begenerally calculated automatically. Butyou can also pull up the table 4B1/4B2from the regs and send the factors usingthe new send factor method

The cable database Wiring & QuickCable programs now share these forms to helpyou when setting up cables in the database or when choosing cables inWiring/Quickcable, so you can be sure you have made appropriate cable installationselections..



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Factors for Cables in ThermalInsulation (Ci)In previous versions of Wiringfactors for cables in ‘ThermalInsulation’ had to be manuallyentered. Revised factors for thisare now published in table 52.2 ofthe 17

th Edition, and these are

also included in the database toallow users to select anappropriate factor directly.These factors are normally onlyused for cables<10mm

2.

Appendix 4 Basiccable sizingformulae.

See sections 5.1.1-5.1.2.There is now an additional

correction factor to beapplied when making initialcable size selections. Thisnew factor Cc is acombination of the previouscircuit protection factor

(0.725 where a semi enclosed fuse BS3036 is used) see regulation 433.1.3 and anew de-rating factor of Cc=0.9(see regulation 433.1.4) where the installation methodis either IEE Duct or IEE Ground, then this additional factor will be applied whensizing cables.

For Single Circuits 5.1.1 the equation used is now:It>=In/(Ca Ci Cc) Note where the install method is duct/ground and the protective

device is a 3036 semi enclosed fuse then a factor of 0.9x0725=0.653 would be usedas the Cc de-rating factor.

For Grouped Circuits the updated Equations are:5.1.2 (eqn 2) It>=In/(Cg Ca Ci Cc) for circuits subject to simultaneous overload. NoteWiring will always use this eqn where parallel conductors are used on any givencircuit.



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App endix 6 Model Forms for Cert i ficat ion &

report ing:

Most Test certificate forms are already available in the software, under ‘’Print TestResults’ which uses similar forms to the current appendix 6 of the regulation.Previously the ‘Periodic Inspection Report’ was not available. This service pack willinclude this last report, which will be suitable for use with residential (Part P), as wellas commercial and Industrial buildings.

There are a numerous new entries that can be set-up on the ‘Edit General Detailsdialog box’ These Entr ies can be used to set-up the details for a new periodicInspection report. This is a multi-page report normal used for an existing installation,and is output along with schedules of Inspection and schedules of Test results. Youcan choose which main & final circuit boards will be output, and whether to output test& inspection schedules for each board.



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This completes the range ofTesting/Certification reportsrequired by BS7671 & Section P ofthe Building Regulations. Whichare now all available in this releaseof Wiring 2008.



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Appendix 10 Protection of Conductors in Parallel

Wiring has always been able to model multiple cables in parallel for the same circuit,whether for multi-core or single core cables. The 17

th edition has now imposed additional

restrictions on these arrangements. See appendix 10 & 434.4 for further information on this.Where you are using un-linked Circuit protection ( e.g. fuses) Wiring will ensure that for:

a) Two conductors in parallel that reduced size fuses are inserted on the supply side ofeach conductor. Thus this circuit protection will protect the individual conductor/sb) Three or more conductors in Parallel .Wiring will position a CPD (fuse) at the supply &

load end of the cable, as shown. Thus ensuring your system complies with therequirements of regulation 434.4 (iii).

As Wiring is a single Line diagramming tool,multiple devices per conductor are not drawn.The schedules, on screen results & print-outs etcwill however show the devices.

Note for Discrimination Calculations this maywell show a smaller upstream device size than a

downstream device.

If for example there are 3 devices in parallel This willonly cause a discrimination problem if under faultconditions 3xI

2t let thru of the parallel fuse (or 3 x pre-

arcing limit) is exceed.

If you use an ACB or MCCB for Circuit Protection for aparalleled sub-main, the software will highlight this

situation as a potential problem. As with no othermonitoring an ACB/MCCB sized for the max demand will likely not protect from a fault on anindividual core. Each parallel conductor will need to be monitored to comply with Appendix 10using additional CTs or Relays.

If you are using any type of fuse as a circuit protective device it may well lead to larger cablesizes than previously required where conductors in parallel are used. For example a 100Aload if it had 3 conductors in parallel each conductor would be required to carry 33.3A,however the nearest size CPD per conductor would be 40 (as 32A would be too small a size)now each conductor would need to be able to carry 40A not 33.3 hence a larger size cablewould need to be selected. This will require larger cable sizes in general than the methodpreviously used under the 16

th edition requirements.



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Appendix 11 Effect of Harmonic Currents

Wiring 17th Edition now allows for Non-linear

Harmonic loads. When placing balanced loadsthere is now an option to select a harmonic load.This will ensure that cables to loads with harmoniccontent will be sized in accordance with appendix

11. Wiring will take into account Triplenharmonics as well as higher order harmonics.Depending on the type of load. You need toobtain a harmonic current profile for your load(VSD,PC/Server Power Supply, ElectronicBallasts etc) in order to size the cable correctly.This is required as % of the fundamental power

freq current, at each frequency.Percentages of thefundamental current areentered as shown, and theresulting peak values ateach frequency will then be

calculated.

The RMS value of theresulting complex curve iscalculated, along with theTHDi & distortion factor.The Iz required by TripleNharmonics is shown, alongwith the correction factor forhigher order harmonics, willall be calculated based onyour entries. This new RMSvalue will then be used the

next time a calculation is carried out for cable sizing purposes.

You can then view the harmonic spectrum of your load at each frequency up to 24times the base frequency of 50Hz. (for example 10x50Hz =500Hz at the 10

th multiple

of base frequency)



174

Some useful statistics are compiled for the non linear loads in the system.

i) The Ratio of the system Short circuit (IPSS) to the connected load (allowingfor diversity) is shown. This ratio can be used to look-up max THD etc inIEE519 tables.

ii) A simple Ratio showing the Ratio of non-linear loads to linear loads is alsoshown.

iii) A worse case PCC THDi is evaluated. E.g. all loads are summated for eachload, at every frequency. This will be a worst case scenario. This is

expressed as % of the connected load. E.g.

ITot(harm)(2-25th)/(iFundamental + tot Linear load). This will allow users to determine

if the system is likely to need full investigation for Harmonic Content.



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Volt Drop:(Appendix 12)

When setting up a new project you nowselect that the supply source is a private orpublic Network. In accordance with Appendix 12 this will set-up the Maximum

Limits:Publicly supplied network5% Volt Drop across sub-mains & finalCircuits. (The defaults are 2% on submains & 3% on Final Circuits) but these canbe overridden with user selected values.

For lighting circuits a maximum VD% of 3%is automatically applied when sizing circuitsof this type. Note at board level it ispossible to specify lower limits if desired bysetting the max VD at board level.

Private Supplied Network8% Volt Drop across sub-mains & finalCircuits. (The defaults are 4% on sub

mains &4% on Final Circuits) but these can be overridden with user selected values.On private networks an additional allowance on circuits > 100M is applied e.g.0.005%/Metre up-to a maximum of 0.5% per circuit.

For lighting circuits a maximum VD% of 6% is automatically applied when sizingcircuits of this type. Note at board level it is possible to specify lower limits if desiredby setting the max VD at board level.

If you set levels outside of those in Appendix 12 you will be warned when closing the

general details dialog box. Thereafter the software will calculate the volt drop limitsspecified in the general details dialog box.



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New Cable Database

There is a new cable databaseBS7671_17

th + ERA 2008.dby. This is a

new combined cable databasecontaining all previous cables alongwith cables previously only available in

previous legacy databases.YY/FP100/FP200/FP400 cables and allprevious IEE & ERA cables are in thissingle new database.

All of the New IEE Ref methods areused in this new database. A-G. New data is available for IEE Duct(method D) and IEE Method G.

All 103 Install methods are fullyillustrated in this new database, andthis is the recommended default

database for new IEE Wiring projects.

There is a new Cable databasesupplied with this update, that should be used for all new IEE17th Edition projects‘BS7671_17th + ERA 2008.DBY’ that contains all of the New reference methods, aswell as combined data from a number of legacy cable databases. It contains newtables of current rating for Twin & Earth (methods 100-103), as well as new IEEcables for duct/ground/Insulators etc.

CPD Database Update

The CPD database program hasbeen updated in order that fuses &

mcb’s are identified by type. The17

th Edition version of Wiring &

CPDDB now use the revised tables41.2-41.6 for maximum values ofZs. It has therefore been necessaryto ensure that mcb’s are identifiedby their type in order that themaximum Zs values can be lookedup from the relevant table. ANumber of the supplied databaseshave been updated to ensure theMCB types are identified. If you areusing older legacy databases or a

custom database of your own, thenyou should check to ensure that thetype of MCB is set for each family ofdevices as shown. If this is not set-

up then the software will simply look-up the relevant max disconnection time of 0.4Sor 5S. Then evaluate the disconnection current(Ia) at this point on the Time/Currentcurve. This will then be converted to a max Zs figure given by:MaxZs = Uo/Ia. However using this method may yield different results than themaximum values Note this method is also used for devices not listed in the Wiringregulations e.g MCCB’s and ACB’s and other types of fuse. The Wiring regulationsalso produce max ZS figures for a range of fuse types. These also need to beidentified in a similar manner to MCB’s .(as shown). Again you should check yourCPD database to ensure that this is set-up correctly.



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Max Impulse Voltage:

Each size of device now hasan entry for U imp the IEC 947max rated Impulse Voltage (inKv) for each size of circuitprotective device. Currentlythis field is not used, butWiring will likely make use ofthis data in a future releasethat includes surge protectiondevices. Hence if setting upnew CPD databases, youshould ensure that you makean entry for this item.



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Quick Cable Updates for 17th

Edition

Quick cable also makes use of thenew IEE17th cable databases, andhas access the graphics of all of the

new illustrated Installation methods, sochoosing cable types and installmethods has never been easier.

Sub-Main or Final circuit mode:

As there are differing requirements interms of Maximum disconnection timeZs values etc, we have introduced newmodes ‘Submain’ or Final Circuit’Mode. This ensures that theappropriate maximum values and

disconnection from the regulations are utilized.

Max Zs values are now also shown in QuickCable. Normally in Brackets.

Earth fault levels in kA are also now shown in QuickCable.

The new ‘Cc’ factor for basic cable size corrections is now shown in both the ‘ShowCalc’ dialog, and in the detailed printouts. For parallel circuits the Circuit Protection issized to suit each conductor, and this is also shown in the on-screen and printedresults.



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Service Pack 2 Change Summary DEC2008

Protection against over-voltages of Atmospheric Origin:

Every Circuit protective Device will be now required to be rated for its impulsewithstand voltage rating(Uimp) with aCategory rating from Table44.3. The

Main CPD on the supply cable willautomatically require a Category IVrating. All other switchgear will require to berated at Category III as these devicesall form part of the fixed installation. Any devices that do not meet theserequirements or if a rating cannot befound in the database, then an errorwill be reported, to highlight devicesthat fail to meet the required ratings.

This is now a requirement of allinstallations, e.g. Circuit protectivedevices must have minimum Impulsevoltages ratings of at least those

specified in table 44.3 of the Wiring regulations. It may well be in legacydatabases that no ratings are entered for a given circuit breaker. Howeverthis information is generally available for most modern devices, and so caneasily be entered into the CPD database to avoid every sub-main cable onthe project reporting an error as shown.

In the edit general dialog box there is a new tab regarding over-voltages. This will

allow you to comply with section 443 of the regulations. This section is concernedwith additional protection e.g. Surge Protective Devices (SPD) being requireddependant on the location & supply detailsof your network. There are two methods ofdetermining whether surge protection isrequired or not.

Method a) Based on Keraunic risk

level (Thunderstorm Days) & Metresof LV overhead line to theproperties. Only two entries arerequired for this method.

Method b)Based on the IEE 17 th Edition (based on the IEC 6162Risk assessment method)For this method several entries arerequiredSelect the type of property to be

protected.

Note only the last two categoriesrequire a calculation, as the firstthree categories will always requiresurge protection.



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Enter values for d1,d2,d3.Enter the flash density per kM2 per year. A calculation will evaluate thecritical length, and advise if surge protection is required or not.

Should surge protection be required, a check will be made the next time yourun a calculation for your project. If no surge protective device (SPD) is foundwith the supply circuit protective device, then an error will be raised by thesoftware. Also if the Impulse voltage of your surge protector is above themaximum stated value in Table 44.3 then again an error will be raised. Asthe SPD has to operate at a voltage below that stated for Category II in thetable.

New Error messages

SPD has too High a Uimp rating . No Surge protection found



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How to Add Surge Protective Devices to the Network:

You can now add surge protective devices at the supply cable, or at any other point in thecable network. This works in a similar manner to adding RCD’s to your system. E.g it isadded alongside the Circuit Protective Device. To add a Surge protective device simply

double click any cable,choose CPD- Details from

the cable dialog box.

Then select ‘SPD’ to add a Surge Protective deviceat this point in the system.

Enter the details for your device as shown.

Enter details for the Manufacturer/Model &Reference You must enter the following details for eachdevice that you add:

Up (kV) This is the Protection Level Voltage inkV that device will provide a Limiting voltage.Normal range of values are in the range of 1-2.5 kV.

No of Poles: The number of poles that the

device protects.

I Max(kA): Maximum discharge current(8/20us) that the device is rated for.

Uc(volts):Maximum continuous operating voltage. (Normally 400/230V)

Type: Choose the Surge Protector type from one of the three listed IEC 61643 Types

In (kA): Nominal discharge current used for classification test, generally less than I Max.

Note the value of Up will be checked in the calculation loops to ensure that the over-voltageprotection afforded by the device is in accordance with table 44.3 of the Wiring regulations(forthe supply cable only).



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On Screen Results:

In sub-main results mode the cable results dialog will show basic details of your SPDs .

Sub Main cable schedules will also indicate whether and RCD or an SPD are used inconjunction with normal circuit protection.



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In Final circuit mode : R indicates a way with an RCD. /S Indicates a way protected by an SPD.“R/S” indicates a way protected by both an RCD & SPD. N indicates a non std device used inthe board. This additional data is now shown directly below the CPD size, as shown in thescreen shot.above.

In Final Circuit mode the Way Results dialog will show basic details for your

SPDs:

Final circuit schedules also now indicate circuits protected by SPDs .

SPD Printed Results:

Printouts –Submain :

The Data Listing report now shows SPD details of any device added to the sub-mainnetwork



184

‘Standard Boards’will also indicate which

cables are SPDprotected



185

Printouts Final Circuit:

Detailed way printouts from Final CircuitsFinal circuit Distribution Board Chart:

Now also indicate ways protected by an SPD .



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Browsing available Cable Data from within the Wiring program:

In previous versions of Wiring, if you wanted to view the current ratings/ volt-drop orCPC data available for any given type of cable /install method, you had to exit theprogram. Load up the Cable-database program, and select your cable type, choosean install method in order to view available types & sizes. Then return to the Wiringprogram.

Now you can access this data directly from within the Wiring program. This willensure that when you fix cables you can avoid selecting cables that are not available. As is common with some cable types, certain ranges may only be available in limitednumber of sizes. Being able to view the data available before the calculation is madewill ensure you make appropriate selections.

To view available data simply go detailed cable entry dialog (double click on any cable) choose the details button. Then click the button adjacentto the ‘core’ arrangements. This will display the range of available sizes.

Note if you leave the ‘core’ type to auto, and then choose to see the cable sizes &ratings. The first available arrangement in the list will be shown (typically 2 core).You need to make a core selection to view appropriate cables & ratings depending onyour connected load. If the cable connects to a TP or TPN load, then when automaticsizing takes place during calculations, the software will automatically choose 3C or4C cables. You need to make a manual selection of core type to see the range ofsizes for the different core arrangements.



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New Tools Utility ‘Check CPD Database’

For the 2008 SP2 release another new utility has been added under thetools menu.This utility is designed to check whether valid Circuit Protective Devicesare available (and valid sizes) for each and every way and cable in yourproject file. We have had a number of users with 16

th Edition legacy

projects utilizing old databases. When upgrading these files to the 17th

edition we have had issues where data may not be available for legacydevices in newer 17

th edition compliant databases. If any devices are

found in your project file that are not available in the current CPDdatabase file. Then running this utility will allow you to choose a globalreplacement device for all occurrences of this device in your project file.

Simply choose from the list of available devices. Every instance ofthe old device will then be replaced with the newly chosen circuitprotective device.

Note there has also been a minor improvement made to the ‘Check17

th Edition RCD’s’ utility. Used to analyze pre 17th

edition projectfiles. Previously you could optionally choose to store the results ofthe RCD upgrade in CSV file. This will now always be done whenusing this utility so there will always in future be a record of circuitsthat have now had RCD’s automatically applied to them by thesoftware.

Auto-repair non sequential SPN Final Boards:

On some project files it has been noticed that some single phase boards show non-sequential way numbers. Users have no direct way of addressing this. If any boardslike this are discovered the software will automatically re-number the board onentry/exit to the final board.

Allow only Multi-Core Cables to Harmonic Loads

Calculations to cables supplying harmonic loads are only valid for multi-cores(usingthe current IEE calculation methods). If you make manual cable selections for singlecores cables a warning will be displayed, hence only multi-core cables can bemanually assigned to circuits of this type.



188

Final Circuit Schedules now show Max Circuit lengths for Volt drop & Zs

These values were only previously available in printed results. Note wherethe maximum value for Zs exceeds 1000M the entry is simply shown asexceeding 1000M.

Provide more Info when Bus bars can’t be Sized

When bus bar systems fail to find a suitable size bus section, previously there was abrief message. The load at the point of failure and the size of the circuit protection isnow displayed, to help you choose a more appropriate range of busbars. In this casethe range selected has a maximum rating of 2000A. either local circuit protection

would be required, or the size range needs to be increased to 2500A (as this is thesize of the ACB protecting the system). The load at the point of failure is in this caseinsignificant as the CPD sizeis the over-riding condition.

Using Variable Speed Drives with Motors:

In the first version release that modelled non-linear (Harmonic Loads) only general loads andun-joined final boards had the ability to model a non linear



189

load. SP2 now allows you to more accurately model the arrangement when VSD’s are usedto start and control the speed of motors. To use this new facility, simply select the VSD optionfrom the motor dialog box.

Minor updates:

Pan Mode : Now draws a rubber band to the current mouse position whilst Panning.

Check 17th

RCD’s:. When opening old 16th Edition files, or using the utility from the tools

menu, you will now always be prompted to save the results of the check to a text file for laterreference. This was optional previously.

Open 16th

Edition Files from Main Start-up screen: Problem when opening 16th Edition

Wiring Project files from the Cymap start-up screen, when choosing ‘Cancel’ Resolved, nowyou will simply be returned to the start-up screen.

Upgrade Check of Cable Databases:

When upgrading old pre 17th edition project files,its necessary to change cable databases to use a17th edition compliant cable database. However

not all cables in legacy databases are contained inthe 17th edition cable database. Also there aredifferent numbers of cable types in eachdatabase. Hence the index or position of a cabletype in the external database determines thecable type used by Wiring. New checks are nowin place that will ensure the user is given a choiceof cable to replace the missing cable with from the

new database. If there were more cable types in the previous cable database than inthe current cable database this could also cause issues. In each case the user willbe prompted for a global replacement cable type, and a log will also be produced thatshows which cables were affected by the change.

Upgrade Check of Circuit Breaker Databases

In a similar manner to cables when you change Circuit protection database to use a17th edition compliant database (Essential for using 17th Edition Wiring). Issues couldarise if devices used in the legacy databases are not available in the updated 17 th edition program. Again you will be presented with the option of making a globalreplacement for Circuit protection.



190



191

Advisory Notice on Volt drop Calculations for the 17th

edition versions of Wiring:

Final Circuit Volt Drops in Cymap Wiring:

There are now two methods of calculating Final Circuit Volt drops in the Wiring program:

1) Using a Static Method. In this scenario you must simply ensure that the projectdefault method ‘Use Spare VD’ is not selected

Each new final board placedwill calculate the local boardlevel maximum volt drop level(based on the Maximum Voltdrop %) entered as shown. (inthis case 3%)

Once a final board is placed,changing the entered % valueback in the edit general

information dialog, will notaffect the board level maximumvolt drop. It will only affect newboards placed. Hence it ispossible to place several

boards all of which inherittheir maximum volt dropsfrom the project levelsettings. In this case 6.9Vrepresents 3% of 230V. Butyou may enter a higher orlower value for eachindividual board. Perhaps if

a certain board/area feedsequipment sensitive to voltdrops, then this may berequired. Alternatively ifthere is a remote boardwhere higher levels of voltdrop may be tolerated, youmay wish to manually entera higher level of volt drop.This is a flexible way ofsetting up your volt dropsfor final circuit boards.This allows you to model

systems with differing voltdrops in different areas.



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Using a Dynamic Method. :If you select ‘use spare VD’ under the project level settings(edit general dialog, final circuit tab)

This will now behavefundamentally differently than inthe scenario 1) above. Usingthe dynamic method, we canpass on any spare volt drop not

used by the previous sub-mains. This spare volt drop willbe used by the final circuitcalculations. However this is a‘dynamic situation’ and as loadsare added to the network thiswill affect the volt drop externalto the current board beingconsidered. Hence any userentered values (as described inscenario 1) would be over-written by the software in orderto meet the current constraints.

Looking at the samedistribution board as before,having selected the ‘Usespare VD option, you willnow see the new values(derived from spare submain voltage drop & finalcircuit voltage combined)that can be tolerated at thecurrent board. Thesevalues constantly changewhilst adding new loads tothe system, as upstreamcable carries more load, orindeed change size. Eachtime you return to a givenboard, the board levelvalues will always update tostay within the currentsettings for final circuit &sub main volt droppercentages combined.

The advantage of using this method for cable sizing is that you will always achieve themost economic sizes of cables that meet the current volt drop % constraints. Hencechanges to either entered volt drop percentages or changes to loads or sub-main cableswill always dynamically affect the cable the final circuit cable sizing routines.

Lastly there are overiding considerations to both of these methods:

A. Final boards must be ‘Joined’ into the system in order for the rules above to becomplied with. Eg in Final circuit mode you must choose ‘Join to main system’ foreach board.

B. Lighting circuits will now always comply with the requirements of appendix 12. egthere will be maximum volt drop % of 3% public

networks and a maximum of 6% for private networks. This % is applied from the supplypoint to the end of any lighting circuit. You can apply local board level volt drops belowthese values but not above them.



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17th Edition AMD1 changes Oct 2011

Wiring - Mult i Supp ly Scenarios

Multiple Supply Systems in Cymap Wiring

In previous versions of Cymap Wiring, only one supply point could be defined in each project

file (*.CYW). Although two transformers could be specified as your supply point they wereeffectively only a single point of supply. In this release of Wiring it is possible to modelsystems that are completely independent of each other in the same project file. It is alsopossible to interlink these systems using Bus Coupled Switches.

Once the systems are drawn you can carry out fault analysis of Symmetrical Three Phase,Single Phase Short Circuits and Earth Faults in your interconnected systems. Full modellingwith load flow analysis etc is not carried out but only calculated on a system by system basiswith the combined fault of the operational transformers considered. This version will allow youto model larger systems found in Industrial and High Rise buildings with Multiple 11kVsupplies and to carry out "what if" scenarios with Bus Couplers.

New Objects: This Version of Wiring introduces some new Objects that you will be requiredto use in order to be able to model parallel systems in Wiring.

Supply Transformer: You need to use this object to place a Supply Transformer onto theNetwork drawing. You will be prompted to enter details of its size & type etc when placing anew supply. At present there is a restriction on the number of supply points you can add to aproject. This is currently set at 6 distribution points per project.

Bus Coupled Board:



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This is very similar to a normal main distribution board in previous versions of Wiring.

However, it also has the ability to interconnect to another system. This is done by adding acable (click inside the lower left or right hand half of the board). You will be prompted to see ifyou want to add a Bus-Coupling Way. You can then route a cable (or Busbar) to a bus-coupler (switch). This object always has a 'greyed out' way at each end of the board reservedfor use by buscoupled ways and always draws with a connector at each end of the board.

Bus Coupler

This new object is required in order to join one system to another system. It also storesinformation in the project file relating to its current status e.g. whether the switch is open orclosed. This means the current status of all bus couplers will be preserved when opening &saving project files. When opening & closing bus couplers, their status can be easilyconfirmed e.g. it is closed when it is filled in green and open when filled in white). The statusof all bus couplers is analysed before main calculations are carried out to ensure only thosesystems that are currently in parallel with the selected system are evaluated.

Turning Transformers on/off:

Editing Transformer Sizes and HV Protection settings for new Transformers



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See screen shot above. It's now possible to model many supply conditions, e.g. feeding allsystems from a single transformer or all transformers on and in parallel etc. Once you haveplaced more than one supply point on the Network drawing it is essential that at least onetransformer is 'Active' or switched on. It's obvious from the network drawing what the current

status of any Transformer is by looking at its colour. A solid filled in 'green' transformerindicates the transformer is on and active. To turn any transformer on or off simply doubleclick the LV supply cable at the transformer and toggle its status to on /off. This, inconjunction with the bus ties (or bus coupler switches), allows an almost infinite number ofsupply arrangements to be modeled.

Resolving the Impedances for Parallel Systems:

Assuming we have N interconnected systems of supply, where each system comprises atransformer supply and transformers are essentially equally rated we wish to calculate systemimpedances for the sake of symmetrical short circuit fault, Single Phase and Earth faultcalculations at one system, say x, where 1 greater than x which is greater than N. Thecalculations need to cater for multiple systems connected in parallel by means of bus

couplers as shown in the diagram below.

Therefore for switchboard level calculations the network can be simplified comprising thecomplex impedances as shown below.



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In order to calculate the impedances and fault levels at one system, the network can befurther simplified as follows.

Zeq-left and Zeq-right are determined in an iterative manner using simple ladder networkanalysis methods until we end up with a Left -Right and Supply Impedance to the Currentmain switchboard & its associated supply system.

New Calculation Sequence:

Results for any system can be evaluated, by simply starting a calculation in the normalmanner (from the display menu choose to calculate main or calculate all). Note results canonly be obtained for one system at a time. However, the impedances of any connectedsystems will be taken into account for short circuit (Symmetrical three phase, Single phase &Earth Fault conditions. The sequence is now as follows (assuming more than one system hasbeen entered into the current project).

1) The User starts a calculation. The system will ask the user to identify the supply point forthe current system to be calculated.

2) An analysis is done to determine which Bus Couplers are closed and hence which systems

need to be calculated, as systems on the opposite side of any open bus couplers will not beevaluated. Only systems connected to the currently selected system via a closed bus couplerwill be considered in the calculations.

3) Each parallel system will be calculated in turn as an independent system in order to sizecables on each system and evaluate cable sizes & impedances for the independent systems.

4) Each bus coupler during the calculation sequences in step 3 has the impedance back toeach supply point to the left and the right of itself stored. This will be used later in thecalculation sequence.

5) Now the currently selected system is re-calculated and a Ladder network fault analysis iscarried out to evaluate the parallel short circuit & earth fault conditions. The fault level checks

are re-evaluated upstream and downstream of the point of common coupling betweensystems, i.e. the main bus coupled board for the current system. Note, on this last pass allcable sizes are temporarily fixed and errors are simply reported for the closed bus couplercondition.



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6) As projects with multiple systems can be large and the calculation loops are now calledsequentially and iteratively, it may take a few minutes for the calculation loops to fully analysethe whole network down to final circuit and parallel networks.

Limitat ions of the Calculat ion:

1) Only one system at a time can be calculated and have results displayed for it.

2) Transformer Percentage Per Unit impedances are assumed to be identical so thatparalleled systems share loads equally in accordance with their frame or rated sizes. A newerror message will be shown if an attempt is made to parallel Transformers with unequal perunit percentage impedances.

3) Transformer Secondary Voltages are again assumed to be identical. The Secondary LVvoltage is defined for a whole project and each transformer will be assumed to have the samesecondary voltage output.

4) As mentioned in item 2, transformers are assumed to be identical and no load flow analysisis done for parallel systems. Each transformer is assumed to supply load current to all of theloads on its own system. Presently checks are made for each system to determine if the eachsupply transformer is overloaded independently.

5) As Load flow for Parallel Systems is not evaluated, Volt drop results along branches shouldbe correct. However volt-drops along bus-coupled bus-bars at main switchboard level are notmodelled and hence may not be valid for the parallel case. However, with couplers 'open' thiswill give worst case volt-drop levels and allow users to fix cable/bus bar sizes before closingbus-couplers.

6) Earth Fault. The parallel fault calc will only consider parallel impedances of systems thatare seen when bus-couplers are closed. However, in practice the earthing system in a switchroom that is fed by multiple transformers will have a common earthing arrangement. Hencethe parallel paths will be present even if the bus coupler is open. However, when calculatingZs values the worst case figures will be when bus couplers are all open leading to no parallelpath figures. Best case scenarios in terms of Zs values will be achieved by closing all buscouplers. It is important to remember that the ZS figure will only calculate parallel paths

through closed bus couplers.

Mult i System Supply Design Considerat ions

The program is designed, to calculate cable sizes and perform all calculations based on eachindividual single system which form part of an integrated supply transformer configuration,where groups of transformers are set up to run under normal operating conditions.This allowsthe engineer to consider "what if" scenarios based on transformers being coupled together orfor other alternate supply arrangements.

When calculating a particular system you will be invited to select the system to be calculatedby selecting its supply point. This supply point uses the fault levels generated from the supplytransformer plus any others connected on line via bus couplers. This will result in only the

cable sizes being shown for the particular system calculated but the generated faultcalculated from the multi supply condition. Each system has to be calculated separately andthe program has been designed to clear and/or make the engineer aware of any faults on asingle system by system basis.

The program can be used to analyse the effects changes to the supply conditions have oneach separate system, so the engineer can make a decision to make sure the cables andbreakers used are suitable for a range of supply conditions that could be encountered basedon design supply switching arrangements. The program will behave slightly differently undermulti supply conditions in terms of auto sizing of CPCs for example. The program will alert theengineer to the problem and it's up to the engineer in this case to fix the CPC size so anyfaults can be cleared under a variety of supply scenarios to satisfy various "what if" scenarios.In this case don't expect a "separate" CPC to be sized for you as it would with a single entry

system. It's better from a design perspective to allow the engineer to make the consciousdecision by fixing a CPC size that satisfies all supply conditions as opposed the programcalculating this automatically.



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When calculating cable sizes, only the cables associated with the supply point the engineerselects will be shown. For example, for a twin transformer supply the engineer will have tocalculate twice in order to view the cables results, once for "system1" and once for "system2".Each set of calculated results can be printed out each time with the supply referenceappearing on the requisite printout.

ARC Flash Protection Ad dit ion s: Wiring 2012

In some switchboards there can be very high fault levels present especially where there aremultiple transformers feeding onto bus bars with bus couplers etc. This can lead to very highfault level currents and a risk of high Arc flash hazards (burns to operatives, molten metaletc). Where testing or working on live equipment needs to be carried out this presents apotential hazard to the workforce. The Electricity at Work Act in the UK has enforced rulesaround personnel and contractors that may be required to operate Motor Control Centres,

lock off switchgear or test live equipment as part of their routine work. The EAW requires thatsuitable Personal Protective Equipment (PPE) is used, and that 'insulated' equipment may berequired. There is nothing specific in the current version of the IEE Wiring regulations thatspecify what the danger or exposure levels to Arc Flash may be. In order to provide a safeworking environment for employees and contractors working on these types of location thefollowing information needs to be available:

An accurate Single Line Diagram (of the type produced by the Wiring Program) with accuratefault levels, based on correctly setting up the Single line diagram.

Transformer Sizes, Fault levels and % Impedance. Again this is taken care of by the softwarewhen creating Single line diagrams.

Accurate cable sizes and cable lengths, which can also be modelled in the software toproduce accurate fault levels at any point in the Network.

Accurate modelling of your Circuit protection, so accurate disconnection times to clearpotential faults are known. Using Cymap this is again easily achieved using Cymap Wiringand the Cymap Circuit Protection module.

Cymap Wiring now makes use of the National Fire Protection Agency (NFPA 70) standard.Other similar related standards are the IEEE 1584 to assess the potential Arc Flash levels.These standards are widely used in other countries like the USA, New Zealand, Australia etc.They are based on simple physics and provide essential information on protecting personnelfrom injury or death!

Wiring can now calculate the two most important values:

Arc Fault Boundary distance: (Db)

e.g. the distance you need to be from live equipment in order to sustain injuries less thansecond degree burns, e.g. 1.2 calories/cm2



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or the distance in mm of a person from an arc source for a "just curable" burn (FLASHPROTECTION BOUNDARY - skin temperature remains less than 80 degrees Celsius)

Arc Fault Flash Levels :

The calories/cm2 level at each point in the network, dependant on the fault level present andthe disconnection time of the local circuit protective device. The calculations are based ontests in a cubic box (500mm on each side, opened on one end), 208v up to 600V systemswith an electrode gap of 32 mm, and for available bolted short-circuit currents of between 16

to 50kA

These can be viewed alongside the fault levels on the single line diagram:

To enable this new feature simply go to the Display option Dialog



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Once you select the 'Show SC Fault Level, you will now have the following additional newoption 'Show NFPA Arc Fault Levels'.

With this option selected when you next do a calculation for your Wiring project, you will beshown the following values:

1). Three Phase Symmetrical Short Circuit Current.

2). Calculated Arc Flash Value (AF) in this case 25.9 Calories/Cm2 at a typical workingdistance of 18"/460mmm approx.

3). Arc Flash Boundary (AFB) Distance in this case (1076mm) this is the safe maximumapproach limit (1.2 Cal/Cm2).

With this information you can then make an informed choice about the protection measurerequired for working in these areas. If the display option for 'Arc Flash' is currently active inyour project, then when you next display a sub-main schedule you will be able to see asummary of the boundary and flash values on the last two columns of your 'sub main cableschedule' as shown below:

The NFPA 70E Standard suggests the following guidance: on personal protective equipmentto be worn by operatives.



Lastly, you must remember when doing the analysis for multiple supplied systems that thiscan have a large impact on fault levels, particularly if there are bus ties or bus couplers inyour distribution system. We advise calculating levels based on bus ties/couplers beingclosed, unless there are interlocks that prevent bus ties being closed and hence providehigher fault levels and exposure risks.

electrical tutorial 2013

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