E05.REV

CABLE TRAY (SIDE RAIL TYPE)

NOTE: FINAL DATE: JUNE 1988

NOTE: NYCEC MAY NOT PERMIT USE OF CABLE TRAY. CHECK AUTHORITIES. THIS IS ACCOMPLISHED BY OMISSION OF ANY REFERENCE TO CABLE TRAY RATHER THAN BY DIRECT STATEMENT.

Part 1 -	GENERAL

1)	WORK INCLUDED

A.	Work in this Section includes the providing of labor, materials, equipment and services necessary for a complete and safe installation in accordance with the contract documents and all applicable codes and authorities having jurisdiction for the following:

1.	Assembly of cable tray, supports and necessary accessories free from burrs, projections or sharp edges that would damage cable insulation.

2)	RELATED WORK AND REQUIREMENTS

A.	Requirements of GENERAL CONDITIONS, DIVISION No. 1 and Section GENERAL PROVISIONS FOR ELECTRICAL WORK apply to all work in this Section.

NOTE: EDIT TO SUIT PROJECT REQUIREMENTS. INCLUDE ONLY SECTIONS DIRECTLY AFFECTING WORK OF THIS SECTION

B.	Related work in the following Sections:

1.	WIRE AND CABLE.

2.	GROUNDING SYSTEM.

3.	-----.

3)	REFERENCE STANDARDS

A.	Published Specifications' standards, tests or recommended methods of trade, industry or governmental organizations apply to work in this Section.

B.	Comply with all applicable national, state and local codes and refer to Section GENERAL PROVISIONS FOR ELECTRICAL WORK for additional Reference Standards.

4)	QUALITY ASSURANCE

A.	Refer to Section GENERAL PROVISIONS FOR ELECTRICAL WORK for Guarantee and other Quality Assurance requirements.

5)	SUBMITTALS

A.	Submit shop drawings, including catalog cuts and load and deflection data for cable trays, fittings, supports, and accessories.

Part 2 -	PRODUCTS

1)	BASE BID MANUFACTURERS

A.	Husky/Burndy, P-W Industries, B-Line Systems and Mono Systems, Inc. (Center Spine Type).

2)	CABLE TRAY

A.	Ladder type: Provide two longitudinal side members connected by individual rungs.

B.	Trough type: Provide continuous, one-piece ventilated bottom contained within longitudinal side members.

C.	Channel type: Provide one-piece ventilated channel section.

D.	Construction:

NOTE: ALUMINUM: ADEQUATE STRENGTH, GOOD CORROSION RESISTANCE, LIGHTER WEIGHT THAN STEEL, MAINTENANCE-FREE, NONMAGNETIC

1.	6063-T6 extruded aluminum.

a.	Minimum thickness:

(1)	Longitudinal side members shall be .105 inch and bottom shall be .080 inch.

NOTE: STEEL - HIGH STRENGTH, LOW COST, HEAVIER THAN ALUMINUM, POOR CORROSION RESISTANCE

2.	Hot-dip galvanized steel.

a.	Minimum thickness:

(1)	Longitudinal side member shall be 16 gauge and bottom shall be 16 gauge.

NOTE: FOR STEEL AND ALUMINUM, LENGTH: 12 FT. WIDTH: LADDER AND TROUGH - 6 INCH, 9 INCH, 12 INCH, 18 INCH AND 24 INCH; CHANNEL - 3 INCH AND 4 INCH DEPTH: LADDER AND TROUGH - 3 INCH, 4 INCH AND 6 INCH, 3 INCH CHANNEL - 1-1/4 INCH 4 INCH CHANNEL - 1-3/4 INCH

3.	Dimensions shall be 12 ft. long x ----- inch wide x ----- inch deep.

NOTE: FOR LADDER TYPE ONLY: RUNG SPACING - 6 INCH, 9 INCH AND 12 INCH USUALLY FOR COMMUNICATION AND CONTROL WIRING. 12 INCH, 18 INCH AND 24 INCH FOR POWER CABLE

4.	Rung spacing shall be ----- inch.

NOTE: FOR TROUGH TYPE ONLY.

5.	Trough Bottom shall be corrugated. For ventilation, provide slots in valley of corrugation minimum 40 percent free area.

a.	Trough bottom shall be suitable for receiving cable clamping devices on vertical runs.

b.	Tray bottom shall be attached to channel longitudinal members by welding at minimum 3 inch intervals.

E.	Accessories shall match tray including:

1.	Bends:

a.	30 deg, 45 deg, 60 deg, 90 deg horizontal, inside and outside vertical as required.

NOTE: AVAILABLE RADII: 12 INCH, 24 INCH, OR 36 INCH.

b.	Radius shall be as indicated.

NOTE: FOR LADDER AND TROUGH TYPES ONLY.

2.	Reducers, horizontal crosses and tees.

NOTE: FOR TROUGH TYPE ONLY.

3.	Vertical tees.

NOTE: FOR LADDER AND TROUGH TYPES ONLY.

4.	Splice connectors, plates and extensions:

a.	Maximum resistance across any splice connection shall be 50 microohms.

b.	Where hinged splices or extensions are used, provide bonding jumpers.

c.	Fittings shall be same load-carrying capacity as straight sections.

5.	Miscellaneous attachments shall be as required.

NOTE: USE IF CABLE TRAY GROUNDING IS NOT COVERED BY GROUNDING SECTION OR IF GROUNDING SECTION IS OMITTED FROM SPECS

F.	Grounding: Provide continuous ground from section to section and from cable tray to building ground with

NOTE: ALUMINUM TRAY.

1.	Minimum No. 4 Aluminum jumper.

NOTE: STEEL TRAY.

2.	Minimum No. 6 copper jumper.

3.	Provide Copper/Aluminum bimetallic connectors as required where aluminum to copper connections occur.

NOTE: USE IF CABLE TRAY GROUNDING IS COVERED uNDER GROUNDING SECTION OF SPECS

G.	Grounding: Provide continuous ground from section to section and from cable tray to building ground in accordance with Grounding Section of Specifications.

H.	Loading:

1.	Standard size simple span shall be 50 pounds per linear ft., uniformly distributed.

NOTE: DELETE IF NOT REQUIRED.

2.	Special loads:

NOTE: FOR CONCENTRATED LOAD REQUIREMENTS. CHECK MANUFACTURER.

a.	Concentrated load capability shall be ----- lb. static vertical at midspan between supports.

NOTE: FOR OUTDOORS - DELETE IF WIND LOAD IS NO CONSIDERATION. IF IT IS, CHECK WITH MANUFACTURER FOR INFORMATION CONCERNING GENERAL WIND CONDITIONS IN LOCALE OF PROJECT SITE

b.	Wind Loading shall be capable of withstanding ----- miles per hour.

NOTE: DELETE IF ICE LOAD IS NO CONSIDERATION. IF IT IS, CHECK WITH MANUFACTURER TO DETERMINE INTO WHICH CATEGORY PROJECT SITE FALLS. THIS IS BASED ON GEOGRAPHIC LOCATION ONLY. HEAVY DISTRICTS: .5 INCH THICK, MEDIUM DISTRICTS: .25 INCH THICK, LIGHT DISTRICTS: NO ICE lOAD

c.	Ice Loading:

(1)	Expected icing shall be .5 inch thick.

(2)	Expected icing shall be .25 inch thick.

I.	Safety Factors:

NOTE: FOR STEEL TRAYS.

1.	1.65 is based on nominal yield or 2.0 based on minimum ultimate or buckling strength of material.

NOTE: FOR ALUMINUM TRAY.

2.	1.65 is based on guaranteed minimum yield strength or 2.0 based on minimum ultimate or buckling strength of material.

NOTE: BEAM DEFLECTION SHOULD NOT BE A MAJOR CONSIDERATION IN CHOICE OF CABLE TRAY UNLESS TRAY IS EXPOSED AND MUST BE CONSIDERED FOR APPEARANCES. WHERE NORMAL DEFLECTION WILL BE OBJECTIONABLE, CHECK MANUFACTURER FOR ADDITIONAL COSTS INVOLVED TO INCREASE RATIO

J.	Span deflection shall be 1/100.

Part 3 -	EXECUTION

1)	INSTALLATION

A.	The installation shall be in accordance with the manufacturer's recommendations and the contract documents.