Cable Tray Loading Calculation

Wire mesh cable tray fill ratio fill ratio cross section of cable cross.

Cable tray loading calculation.

Quick tray fill and load calculations. Cable load working load the cable load or the working load is the total weight of the cables to be placed in the tray. Practical guide on the amount of cable weight that can be installed tested in accordance with nema ve 1 csa e222 2 126 1. A 50 fill ratio should equal the maximum number of cables pulled in a given cross section.

Cable raceway tray support calculations. This will clear both the input and output pages. Cables of 0 21. Calculate size of cable tray for following cable schedule.

Cable tray should be perforated and 20 spare capacity. Tray size of 0 1852 o d. Minimum allowable tray. Cable are laying in single layer in cable tray.

Distance between each cable is 10mm. 9 to begin a new calculation return to the input screen and select the clear button. The quick tray wire mesh cable tray fill table below shows the number of cables and the load in lbf lineal foot developed by typical 4 pair and 6 pair cable weighing 20 lb kft and 40 lb kft respectively while this table is a useful guide actual loads must be calculated using the cable specified. Calculate cable tray width calculate cable tray area calculate cable tray length calculate cable tray weight calculate remaining width of cable tray calculate remaining area of cable tray free download.

The nema classes are based on cable loads of 50 75 and 100 per lineal foot. Cablofil wire mesh tray loading. Lbs ft inside tray depth. Wire basket cable tray fill calculator cable tray sizing calculator.

Quick tray wire mesh. Cross section of the tray. 1 2 no s of 3 5cx300 sq mm xlpe cable having 59 7mm outer diameter and 5 9 kg meter weight 2 2 no s of 3 5cx400 sq mm. The cable tray sizing equals the width times the loading depth.

Chart is based on 50 fill of 4 utp category 6 cable o d 21 033lbs ft not maximum loading weight for the tray. On tue dec 2 2014 at 7 52 pm electrical notes articles wrote. Not required outside diameter cable qty cable size weight lbs ft total cable weight. 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.

The mechanical performance of all products and accessories is tested to the stringent requirements of the international standard iec 61537 and nema ve 1 csa 22 2. The folllowing tables and formulas are provided to help determine how many cables can be safely carried by each size wire mesh cable tray tray and to determine the appropriate distance between supports for the load based on number of cables cable tray size and bracket type. Cable id cable o d.