Cable Tray Standard Sizes Pdf

Cable load working load the cable load or the working load is the total weight of the cables to be placed in the tray.

Cable tray standard sizes pdf.

For purposes of selecting. This is the total weight of cables in the tray. The mechanical per formance of cable tray products and accessories are tested against the demanding requirements imposed by the nema ve 1 underwriters laboratories ul and international standard iec 61537. Tee cable tray standard list note.

For cable tray installers this publication is intended as a practical guide for the proper installation of cable tray systems. Support frequency with short to medium support spans 5 to 10 feet. Other sizes are available upon request all units in mm. 30 cable tray accessories w2 horizontal equal cross horizontal unequal cross equal cross returned flange with straight radius unequal cross returned flange with straight radius equal cross.

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. Standard lengths of 10 12 20 24 feet fixed rung spacing of 4 inches on center. The appearance of the components is now smooth and grey electrogalvanising after manufacture en 12329 standard the cable tray manufactured using untreated steel wire is pickled and. Gs standard accessories before manufacture a coating of zinc is deposited by continuous immersion on the steel sheets or wires.

The nema classes are based on cable loads of 50 75 and 100 per lineal foot. First and foremost a cable tray must act as an effective and durable support for cables.