Cooper Bussmann CT02MAN manual Construction Specifications. F Nonmetallic Cable Tray, Nomenclature

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support. Although the use of cable tray fittings is not mandatory, it is often desirable to use them when possible to improve the appearance of the installation.

392.5.Construction Specifications. (F) Nonmetallic Cable Tray.

This type of cable tray is usually made of Fiberglass Reinforced Plastic (FRP). Applications for FRP cable tray systems include some corrosive atmospheres and where non-conductive material is required. B-Line fiberglass cable tray systems are manufactured from glass fiber reinforced plastic shapes that meet ASTM flammability and self- extinguishing requirements. A surface veil is applied during pultrusion to ensure a resin rich surface and increase ultraviolet resistance, however, for extended exposure to direct sunlight, additional measures, such as painting the tray, are sometimes employed

to insure the longevity of the product. Ambient temperature is also a design consideration when FRP cable tray is used. An ambient temperature of 100°F will decrease the loading capacity of poltester resin fiberglass cable tray by 10%.

392.6. Installation. (A) Complete System.

This section states that cable tray systems can have mechanically discontinuous segments, and that the mechanically discontinuous segment cannot be greater than 6 feet. A bonding jumper sized per Section 250.102 is necessary to connect across any discontinuous segment. The bonding of the system should be in compliance with Section 250.96.

Bonding

Jumper

Cable Tray Elevation Change Without Fittings

 

 

 

 

6

8

 

 

 

 

 

 

 

 

 

 

 

 

5

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

10

 

2

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

11

12

 

13

 

 

 

 

 

9

 

 

 

 

 

 

 

18

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

17

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Typical Cable

 

 

 

 

 

 

 

Tray Layout

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nomenclature

 

 

 

 

 

 

1.

Ladder Type Cable Tray

10.

30° Vertical Inside Bend, Ladder Type Tray

 

 

2.

Ventilated Trough Type Cable Tray

11.

Vertical Bend Segment (VBS)

 

 

3.

Splice Plate

 

12.

Vertical Tee Down, Ventilated Trough Type Tray

 

 

4.

90° Horizontal Bend, Ladder Type Tray

13.

Left Hand Reducer, Ladder Type Tray

 

 

5.

45° Horizontal Bend, Ladder Type Tray

14.

Frame Type Box Connector

 

 

6.

Horizontal Tee, Ladder Type Tray

15.

Barrier Strip Straight Section

 

 

7.

Horizontal Cross, Ladder Type Tray

16.

Solid Flanged Tray Cover

 

 

8.

90° Vertical Outside Bend, Ladder Type Tray

17.

Cable Channel Straight Section, Ventilated

 

 

9.

45° Vertical Outside Bend, Ventilated Type Tray

18.

Cable Channel, 90° Vertical Outside Bend

 

 

 

 

 

 

 

Cable Tray Manual

 

 

 

Cooper B-Line, Inc

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Contents Cable Tray Manual Page Table of Contents Introduction Cable Tray Safety Features WHY Cable TRAY?Cable Tray Space Savings Cable Tray DependabilityMaterial Cost Savings Cable Tray Wiring System Cost SavingsDesign Cost Savings Cost Cable Tray vs. Conduit Installation Cost Time SavingsMaintenance Savings Cooper B-Line, Inc Scope AN IN-DEPTH Look AT 2002 NEC Article 392 Cable TraySteel Ventilated Trough Center Supported Cable Tray Definition. Cable Tray System Uses Permitted. a Wiring MethodsCable Tray Materials Cable Tray Manual Uses Permitted. B In Industrial Establishments Uses Permitted. C Equipment Grounding Conductors 392.3B1a392.3B1b 392.3B1cSealing and Drainage. E Cable Seals, Class 1, Division 2 Uses Permitted. E Nonmetallic Cable Tray 502.4B3. Nonincendive Field WiringUses Not Permitted Construction Specifications. a Strength and RigidityCable Tray Manual Construction Specifications. E Fittings Construction Specifications. B Smooth EdgesConstruction Specifications. C Corrosion Protection Construction Specifications. D Side RailsNomenclature Construction Specifications. F Nonmetallic Cable TrayInstallation. a Complete System Installation. B Completed Before Installation Installation. D Covers Installation. C SupportsInstallation. H Exposed and Accessible Installation. G Through Partitions and WallsInstallation. F Cables Over Volts Installation. I Adequate Access Grounding. a Metallic Cable Trays EGC Grounding. B Steel or Aluminum Cable Tray Systems Temperature Rise Test Cable Installation. B Fastened Securely Cable Installation. a Cable SplicesCable Installation. D Connected in Parallel Cable installation. C Bushed Conduit and TubingSheet 3, Example 392.9A1 392.9A2 392.9E2 392.9F2 Single Diameter Inch Conductor Inches Channel Size AWG Technically Undesirable Installation Interpretation #1 Cable Tray Wiring System Design and Installation Hints Cable Tray Manual Cooper B-Line, Inc Fireproofing Cable Tray Cable Tray AccessoriesCable Tray Maintenance and Repair FRP Cable TRAY. Thermal Contraction and Expansion13B is 128 F. The 125 F line in Table Cable Tray Manual Cooper B-Line, Inc Appendix Pages See Page 29 for Temperature Rise Test illustration Circuit Arrangement for Rigid Conduit Temperature Rise Tests Example NEC .9A1 Example NEC .9A2 Example NEC .9A3 Example NEC .9B Appendix Sheet Start Sizing Cable Tray Per NEC Here Cable Tray Sizing FlowchartYes Ladder Or Vented Trough Line Series Project InformationFiberglass-Vinyl Ester Resin Ventilated Non-Ventilated Cent-R-Rail Wire Basket TrayCable Channel Cooper B-Line, Inc Cable Tray Manual Line Wire Management Resources Ask the Experts