Guangzhou trunking manufacturer tells about fixing and installation method of metal trunking
Guangzhou trunking manufacturersSaid the installation of trunking is also called trunking. Trunking is generally divided into metal and plastic two kinds of materials, each different material determines the characteristics of the trunking. The main is to store the network cable, data cable, power cord and other specifications in the ceiling or wall slot to ensure the cleanliness and safety of the cable.
How do 1. fix the metal groove?
There is no special standard fixing scheme for metal trunking. Metal trunking can be fixed with or without brackets.
how to install 2. metal slot?
1. There is no burr inside the trunking, the surface is flat and free of deformation, the joints are tight and straight, and all kinds of equipment and accessories are complete.
2. The connection port shall be flat, the groove cover shall be installed flat without lifting angle, and the outlet direction shall be correct.
3. When the trunking passes through the deformation joint, the trunking shall be disconnected and connected with the connecting plate inside, and shall not be fixed. The maintenance ground wire shall have a compensation margin. The trunking below CT300 * 100 is fixed with a bolt to the transverse denier, and the trunking above CT400 * 100 requires two bolts.
4. All non-conductive parts of the non-metallic trunking should be connected and bridged accordingly to make it a whole, and all parts should be connected to each other.
5. For trunking laid in the shaft and trunking crossing different fire zones, fire prevention and blocking measures shall be taken according to the planning requirements.
6. The length of straight end steel groove is more than 30m plus elastic joint, and the cable groove crossing the deformation joint is provided with compensation device.
7. The total length of metal cable trunking and its support should be not less than 2 connected to the ground (PE) or zero (PEN) trunk.
8. The two ends of the connecting plate between the non-galvanized cable trunking span the copper core grounding wire, and the allowable cross-sectional area of the grounding wire is not less than BVR-4mm
9. The two ends of the connecting plate between the galvanized cable trunking shall not be crossed with the ground wire, but the two ends of the connecting plate shall not be less than two connecting fixing bolts with lock nuts or lock washers.
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