Cable Tray Manual 2014 CABLE TRAY MANUAL Based on the 2014 National Electrical Code®† Cable Tray Manual Tray Cable ®† Mark shown is the property of its respective owner. B-Line series Cable Tray Systems MAN-1 Eaton Cable Tray Manual Table of Contents Page No. Introduction ........................................................................................................................................................................................................ MAN-3 Why Cable Tray? Safety ................................................................................................................................................................................................ MAN-4 Dependability .............................................................................................................................................................. MAN-4 – MAN-5 Space Savings ................................................................................................................................................................................. MAN-5 Cost Savings ............................................................................................................................................................... MAN-5 – MAN-8 An In-depth Look at the 2011 NEC®, Section 392 Types of Cable Trays (NEC® 392.1 Scope) ................................................................................................. MAN-9 – MAN-10 EMI/RFI Cable Tray ...................................................................................................................................................................... MAN-10 Cable Tray Materials .................................................................................................................................................................... MAN-11 392.2 Definition of Cable Tray System .............................................................................................................................. MAN-11 392.10 Uses for Cable Tray ............................................................................................................................. MAN-11 – MAN-16 (A) Wiring Methods and Cable Types ..................................................................................... MAN-12 – MAN-13 (B) Industrial Usage ......................................................................................................................... MAN-13 – MAN-14 (1) Single Conductor Cable ............................................................................................... MAN-13 – MAN-14 (2) Medium Voltage Cable ........................................................................................................................ MAN-14 (C) Hazardous (Classified) Locations ...................................................................................... MAN-14 – MAN-16 (D) Usage of Nonmetallic Tray ............................................................................................................................ MAN-16 392.12 Uses Not Permitted ................................................................................................................................................... MAN-16 392.18 Cable Tray Installation ........................................................................................................................ MAN-16 – MAN-20 (A) Complete System ..................................................................................................................... MAN-16 – MAN-18 (B) Completed Before Installation .................................................................................................................... MAN-18 (C) Covers ..................................................................................................................................................................... MAN-19 (D) Through Partitions & Walls ............................................................................................................................ MAN-19 (E) Exposed & Accessible ..................................................................................................................................... MAN-19 (F) Adequate Access ............................................................................................................................................... MAN-19 (G) Raceways, Cables, Boxes, and Conduit Bodies Supported from Cable Tray Systems ......................................................................................................... MAN-19 – MAN-20 392.20 Cables and Conduit Installation ................................................................................................... MAN-21 – MAN-22 (A) Multiconductor Cables, 600V or less ...................................................................................................... MAN-21 (B) Cables Rated over 600V ................................................................................................................................ MAN-21 (C) Connected in Parallel ............................................................................................................... MAN-21 – MAN-22 (D) Single Conductor ............................................................................................................................................... MAN-22 392.22 Number of Conductor of Cable ................................................................................................... MAN-23 – MAN-26 392.30 Securing and Supporting Cables and Conductors ..................................................................................... MAN-26 392.46 Bushed Conduit and Tubing ................................................................................................................................... MAN-27 392.56 Cable Splices ................................................................................................................................................................. MAN-27 392.60 Grounding and Bonding ................................................................................................................... MAN-28 – MAN-31 392.80 Ampacity of Conductors ................................................................................................................. MAN-31 – MAN-33 392.100 Construction Specifications ........................................................................................................ MAN-33 – MAN-35 (A) Strength and Rigidity ............................................................................................................... MAN-33 – MAN-35 (B) Smooth Edges .................................................................................................................................................... MAN-35 (C) Corrosion Protection ........................................................................................................................................ MAN-35 (D) Siderails .................................................................................................................................................................. MAN-35 (E) Fittings ..................................................................................................................................................................... MAN-35 (F) Nonmetallic Cable Tray .................................................................................................................................... MAN-35 Cable Tray Wiring System Design and Installation Hints ........................................................................................ MAN-36 Cable Tray Manual Tray Cable Cable Tray Accessories ............................................................................................................................................................. MAN-37 Fireproofing Tray ........................................................................................................................................................................... MAN-37 Cable Tray Maintenance & Repair ....................................................................................................................................... MAN-37 Expansion and Contraction ............................................................................................................................ MAN-38 – MAN-39 Appendix Index & Appendix Sheets ...................................................................................................................... MAN-40 – MAN-47 Cable Tray Sizing Flowchart ......................................................................................................................................... MAN-48 – MAN-49 Cable Tray Installation & Specification Checklists ......................................................................................... MAN-50 – MAN-51 Footnotes ........................................................................................................................................................................................................... MAN-52 Eaton MAN-2 B-Line series Cable Tray Systems Cable Tray Manual INTRODUCTION The B-Line series Cable Tray Manual was produced by our technical staff. We recognize the need for a complete cable tray reference source for electrical engineers and designers. The following pages address the 2014 National Electrical Code® requirements for cable tray systems as well