Cable Tray Installation Standards

It is recommended that the work described in this guide is carried out by competent persons who are familiar with the products being installed and the safety standards associated with them.

Cable tray installation standards.

Nema stands for the national electrical manufacturer s association. Ve2 is a nema standard that outlines cable tray installation practices material control and unloading storage standards. 2006 with a minimum coating weight of 275g m. There are other savings in addition to the initial installation cost savings for cable tray wiring systems over conduit wiring systems.

Usually show that the installed cable tray wiring system will cost 10 to 60 percent less than an equivalent conduit wiring system. Aramco standard saes p 103 ups and dc system. C from cable reel to cable tray the cable is fed from the top of the reel to main tain required curvature. Main keywords for this article are cable tray installation details with pictures cable tray installation details dwg cable tray installation drawings cable tray support span calculation cable tray support brackets.

The amount of cost savings depends on the complexity and size of the installation. Nema ve 2 this standard is a practical guideline used by engineers contractors and maintenance personnel for the proper shipping handling storing maintenance and installation of both metal and nonmetallic cable tray systems. Cable tray systems design shall comply with nec article 392 nema ve 1 and nema fg 1 and follow safe work practices as described in nfpa 70e. Figure f 3 cable feed into cable tray d cable sheaves or a shoe may be used to guide cable into the desired direction maintain minimum bend radius and reduce friction.

2000 and bs en 10143. Electrical and industrial power management solutions eaton. These guidelines are not intended to cover all details or variations in cable ladder and cable tray installation and do not provide for every installation contingency. Electrical power system design calculations in process industry leave a reply.

4 2 3 galvanised cable trays all galvanised cable trays shall be manufactured from pre galvanised mild steel to bs en 10142. Nema ratings are standards that define the types of environments an electrical enclosure can be used in. The standard iec 61 537 is the product standard defining the requirements and test methods for the cable tray and cable ladder systems. Sheaves or a shoe may be used to guide the cable into the tray.