Practical guide on the amount of cable weight that can be installed tested in accordance with nema ve 1 csa e222 2 126 1.
Cable tray width and height.
150 mm and 300 mm sizes of ladder is mostly used in the electrical construction height of the ladder tray is 125 mm.
Covers are un perforated channels generally fabricated from 20 g sheet.
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.
Space between cables must be equal to 2 15 times one cable diameter 3 x 2 15 x 1 07 inches 6 90 inches.
Total cable tray width required is 8 56 inches 6 90 inches 15 46 inches.
There are two types of trays are used in the electrical construction.
Ix moment of inertia sx section modulus.
High sided ct cable tray multiple width height and profile combinations 3m heavy duty lengths.
The sum of the cable diameters is not to exceed 90 of the available cable tray width.
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.
On specific demand its cover may also be fabricated.
Solid bottom cable tray.
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.
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.
Insta trays 60 mm side height support width up to 3 0 m 29 luminaire support tray 50 mm side height support width up to 3 0 m39 trellis tray 60 mm side height standard support width 1 5 m 43 c trellis tray 50 mm side height standard support width 2 0 m 49 plastic cable trays 60 mm side height standard support width 1 5 m55 cable trays1.
When trays are used in continuous spans the deflection of the tray is reduced by as much as 50.
Chart is based on 50 fill of 4 utp category 6 cable o d 21 033lbs ft not maximum loading weight for the tray.
Perforated slot dimensions and patterns may vary depending on tray size and type.
An 18 inch wide cable tray must be used.
