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DESIGNED RECOMMENDED ACCEPTED

ISSUED: AUG 2017REPLACES:MAR 2016ORIGINALLYISSUED: MAR 2016

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M. KELVIN A. NORRIS F. DENNERT

ENGINEER OF RECORD

PRIMARY SERVICES

LIVE-FRONT INDOOR TYPE SWITCHGEAR

PRIVATE PROPERTY INSTALLATION

.011

U/G parkinglevel 1

910

MIN

180

0 M

AX

Typical Service Duct Profile(BC Hydro Preferred)

BC Hydro vaultor other structure

Main floor

Building drainage

300

MIN

3 x Ø125 DB2 Ducts

"Tee" drain

Concrete encased(See note 2.3 b.)

BC Hydro HV markerboards over service ducts

BC Hydrocable pull pit

Concrete-encasedDB2 ducts

Removable 12Gasteel galvanized

cable guardbolted to wall

BC Hydroservice cables

Private propertyPublic corridor

Bellends

Bellends

1500

- 18

00

3000

Detail 5-

Cat.ID 96017849BCH warning plates

1200

300

80

℄

Add 2-20Mstr. Bars@1000 C.1.

Detail 5

PB

Shunt trippush button(see note 4)

-

(or per BCH designer)

Con

tinue

d on

pag

e 4

Use only for doing work with or for BC Hydro. Complete Legal Acknowledgement is at www.bchydro.com/distributionstandards.



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.022

910

MIN

180

0 M

AX

300

MIN

BC HydroHV marker boardsover service ducts

3 x Ø125 DB2 Ducts

"Tee" drain

Bellends

Public corridor Private property

HV Service Duct Installationfor High Flood Level Buildings

Concrete encased(See note 2.3b)

BC Hydrovault

Second floor

1500

BC Hydropullbox832 or 1232

Primary Service

Main floor

D*

* Distance "D" shall be kept to a minimum and less than 6m. Field manager approval is required.

Supplyserviceducts

Concretefloorslab


(3 x Ø753 x Ø100or 3 x Ø125+ neutralfor > 4/0)




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ENGINEER OF RECORD

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3 .03

U/G parkinglevel 1

U/G parkinglevel 2

Typical Service Duct Profile(Not Preferred- BC Hydro Approval Required)

ProtectionpostsPulling iron perES54 S2-01.11

Customer pull box900(W)x1800(H)x750(D) MIN

910

MIN

180

0 M

AX

Concrete protectionpedestal

Pulling iron(See note 5)

Floor drain

Main floor

Buildingdrainage

300

MIN

BC HydroHV marker boardsover service ducts


3 x Ø125 DB2 Ducts

"Tee" drain

Concrete-encasedDB2 ducts

Optionalpulling iron

Bellends

Public corridor Private property

Bell ends

1500MIN

Bell ends

3000

Cat. ID96017849

BCH Warningplates

CAUTIONPrimary service shall be located at P1level, but not lower than P2. Vehicleaccess clearance 2100 mm minimum.

Concrete encased(See note 2.3b)

BC Hydrovault orotherstructure

!


Con

tinue

d fro

m p

ages

1 a

nd 2

Con

tinue

d on

pag

es 4




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ENGINEER OF RECORD

PRIMARY SERVICES



Typical Service Duct Profile


Floordrain

Pulling iron

U/G Parkinglevel 1

U/G Parkinglevel 2

Customercable pull pit

Main floor

Customerservice cubicle

Switchgear ground bus

Neutral bus

BC Hydro revenuemetering

Floor slab rebargrounding (per CEC)

Building drainage

Detail 15

1200

MA

X

1500

Detail 6- 300

80

300

Floorslab

Partition wall

Cat ID 420-0916BCH pulling iron

Add 2-20Mstr. Bars

@1000 C.I.

Detail 6-

For dead-frontservice mainrefer to note 4

MIN

Con

tinue

d fro

m p

ages

1 a

nd 3

4 .04




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5 .05

Switchgear Top View

Front


Removablechecker plates c/wdrop down handles

900 x 700 mmminimum access

1500

MIN

2000 MIN Customer building ground connection

Rebar floor ground per CEC

Pull pit rebargrounding loop

Customer buildingground connection

Switchgear ground bus

Service neutral bus

BC Hydroducts

Service main(See note 4)

Serviceneutral bus

BC Hydrorevenuemetering

1400

~ 2

000

750

MIN

380

Ref

.

Detail 4

3

26

Detail 14

6

6

Switchgearground bus

Detail

Detail

300MIN225

MIN




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ENGINEER OF RECORD

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6 .06

Detail

Bracket

Cableclamp

Servicecable

158"x15

8"C-channel

Slotted steel angle or15

8"x158" C-channel

35

Option 1 Option 2

Bracket

Slotted steel angle or15

8"x158" C-channel

Servicecable

Cable positioningbracket(420-3100 or402-7810)

0.63"

UNS C11000-H04Cu bar 0.25" thickØ0.

56"

Groundingball stud

1.75

"0.

63"

Detail 25

1.75"

1.75

"

1.0"MIN

Ø0.56"2" MIN

Detail 45

Groundingball stud




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1 Materials

1.1 All materials shown shall be supplied by the customer except BC Hydro service cables, cable clamps and/or cable positioning brackets.

1.2 All materials from the BC Hydro duct stub-off to the point of connection shall comply with the BCEC (and the amending bulletins issued by the BCSA) and the minimum requirements speci-fied herein.

1.3 The BC Hydro Designer may specify rigid steel ducts inside buildings for bends that are not con-crete-encased, and that are subject to excessive sidewall abrasion due to cable pulling.

1.4 When service cables are installed with each phase in a separate duct, the design shall prevent eddy current heating in ferrous components (including ducts, attachments, routing, etc.).

1.5 The customer cable pull pit checker plate covers shall be aluminum, 6 mm thick, with integral drop-down lifting handles. The maximum weight of the removable panels is 40 lbs (19 kg), and of the hinged panels is 80 lbs (38 kg).

1.6 The customer shall set BC Hydro cast iron marker plates, Cat. ID 96017849, in the walls, floors and/or ceilings to indicate HV concrete-encased cables, per BCEC Rule 36-100 (4).

2 Installation Requirements

2.1 General

a. All civil installation shall be done by the customer, including BC Hydro supplied civil materials.

b. Methods of installation shall comply with the BCEC (and the amending bulletins issued by the BCSA) and with the requirements specified herein.

c. The trench line and grade shall be straight and uniform, as near as possible to the BC Hydro duct stub-off from the service conduit entrance into the building. The trench installation detail shall be in accordance with ES54 H1-01.

d. The service duct entrance into the building, and the trench, shall be coordinated with other utilities to avoid crossovers and dig-ins.

e. The BC Hydro designer may specify additional installation requirements for construction on unsta-ble ground, as detailed in ES54 U4-01.

f. For customer building services located in high flood level areas, the customer, in agreement with the BC Hydro designer, may eliminate the cable pull pit located below the primary service utility compartment to avoid water accumulation inside the building. For this type of service connection, the customer would install a mid-run pull box (832 or 1232 box) outside the building, as shown on page 2.

g. The cable support channel shall be configurable by the installer in either of the two options shown in Detail 3, and shall be reconfigurable to either of the options during future cable replacement and/or other work. The assembly shall be adjustable inward/outward a minimum of +15 mm, -75 mm when the front edge of the channel is aligned with the plane of the connection surface of the service bus bars or bushings.

h. The minimum clearance between adjacent HV bus bars shall be 300 mm. The minimum clearance between an HV bus and any adjacent grounded surface, including the compartment door when open or closed, shall be 225 mm. The grounding stud shall be considered part of the HV bus that it is attached to for the purposes of establishing minimum clearances.

7 .07




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2.2 Ducting and Cable Pull Pit

a. The customer duct shall connect onto the BC Hydro duct at the stub-off and any markers and/or duct caps shall be discarded.

b. The minimum radius for both 75 mm and 100 mm duct bends shall be 914 mm, and shall be 1050 mm for 125 mm duct bends.

c. Although BC Hydro makes every effort to prevent water from entering into its service ducts, a small amount may be passed to the customer duct, BC Hydro service cables and shields. It is the cus-tomer's responsibility to provide adequate duct drainage, as permitted by the AHJ’s Building Department.

d. Throughout its installation, the service duct shall be kept free of any obstructions, including sand and gravel. The conduit shall be proved by mandrelling before the final connection is made to the BC Hydro duct and before a pull string is installed.

e. A #8 diameter pull string shall be installed in the service duct. It shall be securely tied to the string in the BC Hydro duct stub-off and tied off in each pull box and at the service entrance equipment. If no string is found in the stub-off, the customer shall notify the BC Hydro Designer for further instructions.

f. The customer shall install BC Hydro cable pulling irons, Cat ID 96017849, as indicated, reinforced with 2-20M rebar, 1000 mm long, inside a minimum 300 mm-thick concrete wall.

g. The customer shall consult the BC Hydro Designer for acceptance of mid-run pull boxes, subject to approval by the local Field Manager. Pulling irons at mid-run pull boxes shall comply with ES54 S2-01.11.

2.3 Concrete Encasement

a. Concrete encasement of service ducts may be required by the BC Hydro Designer, and shall be done in accordance with ES54 H1-01.

b. At locations where the service duct passes through, or enters into, a vertical concrete foundation wall, and where differential settlement may impose a shear force on the service duct, the cus-tomer shall ensure a smooth transition to avoid any damage to the ducts and conductors. The BC Hydro Designer may request the customer to specify the estimated settlement of the building structure and required service cable slack, and the customer shall submit the engineered design of the concrete-encased rebar-reinforced wall entry for the service ducts to BC Hydro for accep-tance.

2.4 Grounding

a. Grounding studs shall be supplied as indicated and installed as per the manufacturer’s instruc-tions. Only the following grounding studs are acceptable to BC Hydro:

AB Chance C600-2102

Hastings 21721

Salisbury 21191

b. The minimum clearance between adjacent HV bus bars shall be 300 mm. The minimum clearance between an HV bus and any adjacent grounded surface, including the compartment door when open or closed, shall be 225 mm. The grounding stud shall be considered part of the HV bus that it is attached to for the purposes of establishing minimum clearances.

8 .08




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3 Consulting Agreement

3.1 Agreement must be obtained from the BC Hydro District/Area Manager for the following:

a. Any variance due to local conditions, and/or

b. The suitability of the service duct and pull string for cable pulling.

3.2 Approval must be obtained from the local Electricity Safety Officer for the following:

a. All material and methods of installation on private property and Final Inspection of the installation.

4 Dead Front Indoor Primary Services

Indoor-type primary service equipment shall comply with BCEC and BCBC rules for the installa-tion of oil-filled and gas-filled equipment inside the building. In addition, this type of service shall have a remote shunt-trip pushbutton, hard-wired to the service main trip coil, ready to shut off the service. The pushbutton shall be located outside the primary service room, at a readily accessible location, and shall be equipped with a hasp for the installation of a BC Hydro padlock.

Specific requirements for dead front indoor equipment shall be based on the applicable require-ments provided for the outdoor type (ES54 S3-01). Proposals for dead front indoor primary ser-vices are encouraged for improved safety and reliability. Designs will be reviewed by BC Hydro and may be allowed to proceed with “beta site” installation if they meet BC Hydro operational, safety and construction requirements. Requirements for any beta site installation(s) and related conditions of acceptance will be communicated to the customer at the time the beta site is allowed. Following successful beta site installation(s) and resolution of any conditions of accep-tance, BC Hydro may authorize the equipment for unrestricted application.

Reference Document

BC Hydro Requirements for Customers Primary Services Supplied at 4 kV to 35 kV – “Primary Guide”

Reference Standards

ES54 H1-01 General Trenching Details, URD and UD Installations

ES53 S3-01 Primary Services, Customer-Owned Service Equipment, Electrical Installation Details

ES54 Section W Construction Specifications

9 .09


e added and dimensions

Documents