Required configuration of supports and hangers for trough cable tray

The main results are as follows:
1. The indoor support and short span of trough bridge generally take 1.5–3m.The span of outdoor column is generally 6m.
2. The configuration of non-linear broken branches and hangers shall follow the following principles.
When the width of the bridge is 300mm, in addition to meeting the following conditions, an additional Cable tray suppliersupport and hanger should be added in the middle of the non-straight section.
3. When the bridge is set up with multiple layers, the center distance between the layers is 200250300350mm.
4. The straight line segment of the bridge should leave 20–30mm expansion joints every 50m (metal bridge).
5. Fire protection requirements require that the fireproof sections of the bridge must be made of steel or non-flammable or flame retardant materials.
BAQJ series cable tray produced by Anhui trough bridge has fireproof bridge series.