Cable Tray Width And Height

Solid bottom cable tray.

Cable tray width and height.

High sided ct cable tray multiple width height and profile combinations 3m heavy duty lengths. The width of the center perforated portion may vary from 50 mm to 1000 mm and the height of edges may vary from 25 mm to 150 mm. Perforated slot dimensions and patterns may vary depending on tray size and type. When trays are used in continuous spans the deflection of the tray is reduced by as much as 50.

Total cable tray width required is 8 56 inches 6 90 inches 15 46 inches. B cables smaller than 4 0 awg kcmill 120 sq mm ladder type cable tray. Covers are un perforated channels generally fabricated from 20 g sheet. Generally open type cable trays are being used.

90 outside flange b with solid bottom s. Ladder is mainly used to lay the power cables. Perforated solid cable tray dimensional drawing tray height 75mm width width 75 75 15 25 75 75 50 50 thickness 8 x 20 typ. Space between cables must be equal to 2 15 times one cable diameter 3 x 2 15 x 1 07 inches 6 90 inches.

An 18 inch wide cable tray must be used. On specific demand its cover may also be fabricated. 150 mm and 300 mm sizes of ladder is mostly used in the electrical construction height of the ladder tray is 125 mm. As3013 2005 fire rated cable tray 150 600mm width options with multiple designs for a choice of load capability engineered for as3013 2005 conformance.

When using 18 rung spacing load capacity is limited to 394 lbs ft 586 27 kg m for 30 tray width and 325 lbs ft 483 6 kg m for 36 tray width. The sum of the cable diameters is not to exceed 90 of the available cable tray width. Chart is based on 50 fill of 4 utp category 6 cable o d 21 033lbs ft not maximum loading weight for 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.

Ix moment of inertia sx section modulus.