Caulk or putty should be applied to top and bottom of cable tray on both sides of the wall. Install pieces of 3MTM Fire Barrier FS-195+ Wrap/Strip over the top of caulk or putty. Article Summary: A compliant cable tray installation requires a thorough understanding of NEC Article 392, proper structural support, and precise installation techniques. This guide covers the critical steps, from selecting the right electrical cable tray and performing accurate cable fill. When ofloading tray from a flat deck trailer using an overhead crane, care should be exercised in the placement and length of the slings to prevent crushing the product (siderails). We also have used putty pads in a few systems for through-penetrations. Standard Aluminum Ladder • The rungs provide a convenient anchor for tying down cables in vertical runs or where the. WBT offers numerous splice options for traditional tray/tray splicing. Most common is the Splice Kit and Double splice. NEMA VE2 was developed by the NEMA Cable Tray Section, of which MP Husky is a charter member.
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