Cable Tray Width

There are 50 mm 100 mm 150 mm 300 mm 450 mm 600 mm 750 mm 900 mm sizes of electrical cable trays.

Cable tray width.

90 outside flange b with solid bottom s shown below 90 inside flange c with perforated bottom v shown below. Calculate size of cable tray for following cable schedule. Space between cables must be equal to 2 15 times one cable diameter 3 x 2 15 x 1 07 inches 6 90 inches. The sum of the cable diameters is not to exceed 90 of the available cable tray width.

5 10 2x6x10 13 2. Total cable tray width required is 8 56 inches 6 90 inches 15 46. Cable are laying in single layer in cable tray. Instrument cables and control cables are should have to be lay in perforated tray.

Distance between each cable is 10mm. Cable weight lbs ft. Perforated solid cable tray dimensional drawing tray height 75mm width width 75 75 15 25 75 75 50 50 thickness 8 x 20 typ. To determine the required width of a ladder or ventilated trough cable tray as per section 318 11 b 4.

50 fill ratio. 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. Tested load capacity lbs ft. B cables smaller than 4 0 awg kcmill 120 sq mm ladder type cable tray.

Cable tray should be perforated and 20 spare capacity. The total sum of the cross sectional areas of all the cables to be installed in the cable tray must be equal to or less than the allowable cable area for the.