Electrical Cable Tray Specification

Nema ve 2 cable tray installation guidelines.

Electrical cable tray specification.

Nema ratings are standards that define the types of environments an electrical enclosure can be used in. Fasten and support cables that pass from one cable tray to another or drop from cable trays to equipment enclosures. 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. The drawings which constitute a part of these specifications indicate the general route of the cable tray systems.

However article 318 8 3 b limits fill to 50 of cross section of tray with 6 the maximum depth usable for computation. Data presented on these drawings is as only. Fasten cables to the cable tray at the point of exit and support cables independent of the enclosure. 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.

Perforated and ladder type trays with accessories. The national electrical code nec greatly limits cable fill area and actual loads will be less. The cable length between cable trays or between cable tray and enclosure shall be no more than 72 inches 1800 mm. Ve1 is a nema standard that defines manufacturing performance and testing standards for cable tray systems.

Nema ve 1 metal cable tray systems. For example the weight of multiconductor control and or signal cable is close to those in the table. Cable trays are available in different sizes as per the customer specifications. National electrical code 2017 1 3 drawings a.