With the change of the market, the cable tray has spread all over the market. And it's used everywhere in our lives. Now by Jinan Hangfeng cable bridge manufacturers to give you a detailed introduction of cable bridge technology what requirements?
The deflection shall not be greater than 4mm
When the nominal diameter of the comparable screw is greater than 1.5mm (the screw diameter shall not be greater than M16) or 2mm (the screw diameter shall not be less than M20), the accuracy of the bolt hole shall not be lower than h14
Allowable deviation of bolt hole distance: between two adjacent holes in the same group ≤ ± 0.7mm； Between any two holes in the same group ≤ ± 1.0 mm, between end holes of two adjacent groups ≤ ± 1.2mm。
For horizontal bending, vertical bending, branch and cable ladder narrowing, the manufacturer's standard right angle bending joint, branch joint, eccentric shrinkage joint and straight shrinkage joint shall be used.
Fireproof paint should be flat, smooth, uniform, no peeling, no bubble blister.
The surface anti-corrosion treatment of the accessories is consistent with the main structure of the cable tray. The number of holes in the connecting piece of the cable tray and the number and specification of connecting bolts and flat elastic pad sets used shall meet the corresponding requirements of the standard bridging connection. The material specification of the cover plate of the cable tray shall be the same as that of the cable tray.
The number of cable tray accessories shall be sufficient to meet the construction requirements. 5% allowance shall be considered for connecting piece and bridging copper braided belt of cable tray, and 10% allowance shall be considered for bolt cap and gasket.
The production length of cable tray is 2m. When the length is 2m, the deviation shall not be greater than 2mm