Cable Tray Loading Classes

Select the type of traythere are three different types of cable tray.

Cable tray loading classes.

Please note the load ratings in table 1 are those most commonly used. The nema classes are based on cable loads of 50 75 and 100 per lineal foot. Select tray sizethere are different widths and heights of cable tray and what you require will depend on number size spacing and weight of. Csa class code side rail esignation designation height rated load rated span kg m m 97 97 112 112 di c6 d3m 102 150.

Cope is the original brand of cable tray. Cable load working load the cable load or the working load is the total weight of the cables to be placed in the tray. Below is the data for quick tray wire mesh cable tray fill table at 50 fills. This is the total weight of cables in the tray.

Ladder ventilated solid select tray size width and height code cable tray systems are manufactured to conform to the standard load classes of csa as follows. Code cable tray systems are manufactured to conform to the standard load classes of csa as follows. See nema ve 1 and manufacturer s data. For purposes of selecting.

These systems have 1 1 8 wide side rail flanges and 4 hole splice plates. Ladder ventilated solid 4. In 1948 thomas jefferson cope developed the first modular cable tray system and introduced it to the electrical industry. The nema classes are based on cable loads of 50 75 and 100 per lineal foot.

Today the cope brand is part of atkore international and is the premier producer of all major categories of cable tray systems. Cable load working load the cable load or the working load is the total weight of the cables to be placed in the tray. Class 3 tray fittings are designed for use with cable trays with. 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.

This is the total weight of cables in the tray. This table for cable tray sizes is provided by hoffman enclosures inc. Styles of tray there are three different styles of cable tray. These systems have 2 wide side rail flanges and 4 hole splice plates.

2 select the tray class load capacity loading the standard classes of cable trays as related to their maximum design loads and to the associated design support spacing based on a simple beam span requirement shall be designated in accordance with table 1. Nema ve 1 this standard specifies the manufacturing requirements for metal cable trays such as. Size the width of cable tray and the load rating for expansion and additions. Which is subject to change at any time.

Class 1 tray fittings are designed for use with nema classes 12b and 12c cable trays.