Electrical Cable Tray Specification

The drawings which constitute a part of these specifications indicate the general route of the cable tray systems.

Electrical cable tray specification.

Nema stands for the national electrical manufacturer s association. The cable length between cable trays or between cable tray and enclosure shall be no more than 72 inches 1800 mm. National electrical code 2017 1 3 drawings a. Fasten and support cables that pass from one cable tray to another or drop from cable trays to equipment enclosures.

Perforated and ladder type trays with accessories. Cable trays are available in different sizes as per the customer specifications. Data presented on these drawings is as only. However article 318 8 3 b limits fill to 50 of cross section of tray with 6 the maximum depth usable for computation.

Ve1 is a nema standard that defines manufacturing performance and testing standards for cable tray systems. Nema ve 1 this standard specifies the manufacturing requirements for metal cable trays such as. The national electrical code nec greatly limits cable fill area and actual loads will be less. Nema ve 1 metal cable tray systems.

We manufacture cable trays in the following thicknesses 1 2 mm 1 5 mm 1 6 mm 2 0 mm 2 5 mm and 3 0 mm. Nema ratings are standards that define the types of environments an electrical enclosure can be used in. For example the weight of multiconductor control and or signal cable is close to those in the table. Channel cable tray ladder cable tray single rail cable tray wire mesh cable tray solid bottom or nonventillated cable tray and trough or ventilated cable tray and associated fittings for use in accordance with the rules of the national electrical code.