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.

Sheaves or a shoe may be used to guide the cable into the tray. 2000 and bs en 10143. Electrical power system design calculations in process industry leave a reply. Cable tray and cable fittings shall be fully perforated slot sizes shall be 20mm x 7mm or similar running.

Being the only standard harmonized at european level it is the reference when marking ce on the products as requested in the lvd. The standard iec 61 537 is the product standard defining the requirements and test methods for the cable tray and cable ladder systems. Nema stands for the national electrical manufacturer s association. 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.

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. 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. Usually show that the installed cable tray wiring system will cost 10 to 60 percent less than an equivalent conduit wiring system.

Electrical and industrial power management solutions eaton. There are other savings in addition to the initial installation cost savings for cable tray wiring systems over conduit wiring systems. 4 2 3 galvanised cable trays all galvanised cable trays shall be manufactured from pre galvanised mild steel to bs en 10142. 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.

For cable tray installers this publication is intended as a practical guide for the proper installation of cable tray systems. 2006 with a minimum coating weight of 275g m. 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. Nema ratings are standards that define the types of environments an electrical enclosure can be used in.