Cable are laying in single layer in cable tray.
Cable tray width.
Total width of the cables 8 x 1 07 inches 8 56 inches.
Space between cables must be equal to 2 15 times one cable diameter 3 x 2 15 x 1 07 inches 6 90 inches.
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 should be perforated and 20 spare capacity.
50 fill ratio.
Total cable tray width required is 8 56 inches 6 90 inches 15 46.
Distance between each cable is 10mm.
B cables smaller than 4 0 awg kcmill 120 sq mm ladder type cable tray.
Perforated slot dimensions and patterns may vary depending on tray size and type.
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.
Perforated solid cable tray dimensional drawing tray height 75mm width width 75 75 15 25 75 75 50 50 thickness 8 x 20 typ.
90 outside flange b with solid bottom s shown below 90 inside flange c with perforated bottom v shown below.
Tested load capacity lbs ft.
Instrument cables and control cables are should have to be lay in perforated tray.
Calculate size of cable tray for following cable schedule.
5 10 2x6x10 13 2.
The sum of the cable diameters is not to exceed 90 of the available cable tray width.
Solid bottom cable tray.