bicsi breakfast club honolulu, hawaii 2008

BICSI BREAKFAST CLUBBICSI BREAKFAST CLUBHonolulu, Hawaii 2008Honolulu, Hawaii 2008

OUTSIDE PLANT INFRASTRUCTURE

OUTSIDE PLANTOUTSIDE PLANT

Presented by:

John C. Adams

RCDD/OSP Specialist

BICSI Master Instructor

Owner- Adams Telecomm

AGENDAAGENDA

• ANSI Standards (OSP related)

• Bonding and Grounding Terms

• ANSI Outside Plant Standard

• Key Areas of Outside Plant (OSP)

• Safety Issues (OSHA)

• National Codes

ANSI StandardsANSI Standards

ANSI

American National Standards Institute

TIA

Telecommunications Industry Association

EIA

Electronic Industries Alliance


• ANSI/TIA/EIA- 568-B.1 Commercial Building Telecommunications Cabling

Standard

• Specifies minimum requirements for telecommunications cabling within a commercial building up to and including the telecommunications outlet/connector, and between buildings in a campus

• Specifies component requirements, cabling distances, telecommunications outlet and connector configurations and recommended topologies


ANSI/TIA-569-B covers:

• Inter-building Backbone Cables

• Telecommunications Rooms (TR)

• Equipment Rooms (ER)

• Entrance Facilities (EF)

• Clearances

• Firestopping


ANSI/TIA- 569-B OSP Sections

• Pathways include aerial, direct buried, underground, and tunnels

• Cable trays and conduit

• Appendix A Firestopping


ANSI/TIA/EIA-606-A

• Administrative Standard for Commercial Telecommunications Infrastructure


ANSI/TIA/EIA-606-A

• In a nutshell, everything has to have a “unique identifier” that should last the lifetime of what you’ve labeled.


ANSI-J-STD-607-A

Grounding (Earthing) and Bonding

Requirements for Telecommunications

Bonding and Grounding TermsBonding and Grounding Terms

TMGB (Telecommunications Main Grounding Busbar)

• Serves as the dedicated extension of the building grounding electrode system for the telecommunications system

• Must be accessible to telecomm personnel

• Extensions of the TMGB will be identified as TGBs


TMGB

• Locate the TMGB as close as possible to the primary protection for incoming cables

• A minimum of #6 AWG shall be used for connections to the TMGB with consideration up to 3/0 for extended lengths of bonding conductors


TGB

(Telecommunications Grounding Busbar)

• Common central point of connection for telecommunications systems and equipment in the location served by that telecommunications closet or equipment room


TBB

(Telecommunications Bonding Backbone)

• Serves to interconnect all TGBs to the TMGB

• Shall be an insulated copper conductor

• Minimum size shall be a #6 AWG with consideration up to a 3/0 AWG


ANSI/TIA-758-ACustomer Owned Outside Plant

Telecommunications Infrastructure Standard

ANSI/TIA- 758-AANSI/TIA- 758-A

• Telecommunications in this standard refers to all forms of information, for example:

Voice, Data, Video, Alarm, Environmental Controls, Security, and Audio

ANSI/TIA-758-AANSI/TIA-758-A

Maintenance HolesShall be equipped with:• Corrosion resistant pulling irons• Corrosion resistant cable racks• Sump for drainage AND SHALL NOT BE SHARED WITH ELECTRICAL INSTALLATIONS

ANSI/TIA-758-AANSI/TIA-758-A

Handholes• Shall not be used in place of a MH• Shall not be used for splicing• Shall not be shared with electrical• Shall not exceed 4’ x 4’ x 4’• Should not be used in runs of more then (3)

trade size 4 conduits• Conduits should be aligned on opposite sides

and at the same elevation

ANSI/TIA- 758-AANSI/TIA- 758-A

Fiber Optic Cable

• Bend radius shall be no less then 20 times the cable diameter during installation and 15 times after installation

• Accurate OTDR tests require a minimum of 100 meters or 328 feet

What’s the purpose of standards?What’s the purpose of standards?

• To establish a basis to quantify, compare, measure or judge:

capacity, quantity, content, extent, value,

and quality

• To promote interoperability of components and systems by multiple manufacturers.

Why do we have to know them?Why do we have to know them?

• To resolve potential disputes

• Produce the results expected

• Know when and where they apply

Key Areas of OSPKey Areas of OSPPlanning and InstallationPlanning and Installation

Existing Buried Utilities

• Staking / flagging / painting within 24” shall be considered a good mark

• The potholing method will be used to determine the EXACT location of the utility before proceeding with construction

• Potholing in road surfaces shall be no greater then 12” x 12”

Key Areas of OSPKey Areas of OSP

Backfilling the trenches

• Can we use native soil?• Compaction?• Concrete encasement / capping• Flow-able Fill (Slurry)• Reseeding or Sodding


Road or Parking Lot Excavation

• Paved roads will be restored to original thickness or a minimum of ? thick

• Areas that are excavated must be restored within ? hours

• What method? Cut and restore, bore, casing, etc


Handholes

• Are used to aid in the placement of cables

• Will not be used in place of a MH nor placed in a main conduit system

• Will not be shared with electrical

OSPOSP

Handholes

• Minimum size is a 4’ x 4’ x 4’ and larger sizes are acceptable (ANSI accepted?)

• Will be equipped with lid, pull irons, cable racks, and hooks.


Ducts• Duct shall be made of PVC • Shall be Schedule , EB, DB, RNC 40 or 60

RMC, HDPE, or IMC• Use 40 or DB if the duct is to be concrete

encased or direct buried. (EB can be used only for concrete encased runs)

• Use spacers every 5’ on all 20’ lengths of conduit (concrete blocks ?)


• No more then two (2) 90 degree bends or a total of 180 degrees of bends between any two pulling points

• Back to back bends should be avoided


Rod and Mandrel

• Existing vacant ducts, without pull strings, that are to be used for new cable installation shall be cleaned and tested with a mandrel.

• Mandrel must be no more then ½” less then the ID of the duct. Mandrel must be non-flexible and be approx. 12 inches long


Grounding (coming into buildings)

• Ground wire must be a minimum #6 AWG

• Must be done without sharp bends

• Must be placed as short as possible

• Must be 25 ohms or less (per NEC)


Quality Assurance

• Who does the OSP inspections at your institute?

• Are they qualified or were they the one person that knew the most about OSP?

Safety ProceduresSafety Procedures

All work performed will comply with:

OSHAOccupational Safety and Health Administration

OSHAOSHA

The main areas of OSHA for OSP are:

29 CFR 1910.268 Telecommunications

29 CFR 1910.146 Permit Required Confined Spaces (PRCS)

OSHA 1910.268 (e)OSHA 1910.268 (e)

Personal Protective Equipment (PPE)

• Gloves, (insulated or rubber if required)

• Hardhats/Helmets (Class B type)

• Eye Protection (side shields if required)

OSHA 1910.268 (o) (2)OSHA 1910.268 (o) (2)Entering a MH or unvented vaultEntering a MH or unvented vault

• The internal atmosphere must be tested for combustible gas and, except where continuous forced ventilation is provided, the atmosphere must be tested for oxygen deficiency (less then 19.5%)

OSHA 1910.268 (o) (2) (i) (B)OSHA 1910.268 (o) (2) (i) (B)

• When unsafe conditions are detected by testing or other means, the work area shall be ventilated and otherwise made safe before entry

OSHA 1910.268 (o)(2)(ii)(B)OSHA 1910.268 (o)(2)(ii)(B)

A continuous supply of air shall be provided

while work is being performed in MHs under

these conditions:

• Combustible or explosive gas was initially detected

• Organic solvents are being used

• Using open flame

OSHA 1910.146OSHA 1910.146

Confined Spaces (definition)

• Is large enough and so configured so that an employee can bodily enter and perform assigned work

• Has limited or restrictive means for entry and exit

• Is not designed for continuous employee occupancy

OSHA 1910.146OSHA 1910.146

Permit Required Confined Space (PRCS) (definition)

• Any space (open trench, maintenance hole etc.) that has the potential to contain a hazardous atmosphere, material that has the potential for engulfing, or contains any recognized safety or health hazard requires a permit to enter.

PRCS EntryPRCS Entry

• What happens next when a conventional confined space becomes a PRCS?

• Is the procedure for entering this space any different then any other confined space?

YES !!

CODESCODES

Code

• A rule intended to ensure safety

• Typically enforced by government

• Addresses the safety of persons, property, and the environment

CODESCODES

The Main codes for OSP:

• NESC (2007 Edition) National Electrical Safety Code

• NEC (2008) National Electrical Code

• OSHA Code of Federal Regulations (CFR)

NESCNESC

• Published by the IEEE

Institute of Electrical and Electronic Engineers• Minimum safety requirements • Is mainly OSP oriented (95%)• Used as the basis for R/W permits• Revised every three years• Contains “should” and “shall”• “Practical and “Possible”

Important NESC SectionsImportant NESC Sections

• Section 1 Rule 012 General Rules

• Section 1 Rule 013 Application

• Section 2 Definition of Terms

• Section 9 Grounding Methods

• Part 2 Safety for Overhead Lines

• Part 3 Safety for Underground Lines

• Storm Loading Calculations

NECNEC

• Published by the National Fire Protection Association (NFPA)

• Also called the NFPA-70• Revised every three years• Minimum safety requirements• Contains “shall” and “should”• Used extensively by the AHJ

Important NEC SectionsImportant NEC Sections

• Section 90-2 Scope• Article 100- Part A- Definitions• Article 250- Grounding and Bonding• Article 300- Wiring Methods• Article 770- Fiber Optics• Article 800- Communications• Article 820- CATV• Article 830- Network Broadband

MAHALOMAHALO

FOR YOUR

TIME AND ATTENTION

bicsi breakfast club honolulu, hawaii 2008

Documents

telecommunications systemmust

telecommunications systems

grounding termsansi

grounding termstmgblocate

bonding requirements

cabling distances

awgansi standardsansitia

b osp sectionspathways