Cable Tray Loading Depth

3 4 lip on both sides.

Cable tray loading depth.

Cope glas cable tray system. Wire basket cable tray fill calculator cable tray sizing calculator. Cable tray must be supported on spans shorter than. Published load safety factor is 1 5.

Aluminum cable tray inside riser 90 each section includes splice plates and hardware. Cable tray wiring systems are the preferred wiring system when they are evaluated against equivalent conduit wiring systems in terms of safety dependability space and cost. 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 trays will support without collapse a 200 lb.

Cable tray having a usable inside depth of 150 mm 6 in if the depth is more than 6 nec recommends the filling percent will be calculated as only 6 in it is the depth. Generally cable tray sizing is correct when it appears 50 full of cable or wire or when it contains a 50 fill of cables or wire. New 5 load depth glas tray. This is the total weight of cables in the tray.

Tray size of 0 1852 o d. Cable tray must be supported on spans shorter. Which is subject to change at any time. The cable tray sizing equals the width times the loading depth.

Today the cope brand is part of atkore international and is the premier producer of all major categories of cable tray systems. Below is the data for quick tray wire mesh cable tray fill table at 50 fills. Inside vertical riser guides and transitions cable tray up or level with cables on the inside. Matching cover listed below.

The nema classes are based on cable loads of 50 75 and 100 per lineal foot. This table for cable tray sizes is provided by hoffman enclosures inc. Cope is the original brand of cable tray. In power station we used only solid bottom open top tray and the ampacity is calculated as per the.

Cope cable tray systems. 90 7 kg concentrated load over and above published loads. To properly evaluate a cable tray wiring system vs. For purposes of selecting a suitable tray this weight should be rounded off to the next higher.

10 foot length part numbers type fe rung spacing section width. In 1948 thomas jefferson cope developed the first modular cable tray system and introduced it to the electrical industry. 90 7 kg concentrated load over and above published loads. 5 side rails with 4 loading depth.

A conduit wiring system an engineer must be knowledgeable of both their installation and the system features. I don t know how a modern program could calculate the ampacity. To obtain mid span deflection multiply a load by the deflection multiplier. To convert 1 5 safety factor to 2 0 multiply the published load by 0 75.

To obtain mid span deflection multiply a load by the deflection multiplier. To convert 1 5 safety factor to 2 0 multiply publish load by 0 75. Published load safety factor is 1 5. Cable load foot 49 cables 20 lb 1000 ft.