The wire trough is a material suitable for arranging the wire installation. The wire trough includes a base and a cover. The base is narrow and wide at the top and has an accommodating space with an opening facing upwards. The electric wire is placed in the wire groove so as not to expose the opening, so that the upper cover can be easily covered on the base, and the wide and narrow shape of the base has the effect of beautifying the environment. Next Xiaobian introduced the precautions for installing the trunking and the installation method of the trunking.
Cabling installation notes
1. The groove is flat without distortion, the inner wall has no burrs, the joints are tight and straight, and various accessories are complete.
2. The slot joints should be flat, the joints should be straight and flat, and the groove cover should be flat, no warping angle, and the outlet position is correct.
3. When the trunking passes through deformation joints, the trunking shall be disconnected. The trunking shall be connected with a connecting plate and shall not be fixed. There shall be a compensation margin for the protective grounding wire. A bolt shall be fixed below the trunking CT300*100 and the Hengdan. Two bolts must be fixed above CT400*100.
4. All non-conductive parts of non-metallic trunking should be connected and bridged accordingly, making it a whole, and make the overall connection.
5. Lay the troughs in the shaft and the troughs that pass through different fire zones, and set up fireproof insulation measures according to the design requirements.
6. The length of steel trunking at the straight end is more than 30m plus the expansion joint, and the cable trunking is equipped with a compensation device across the deformation joint.
7. The length of the metal cable trunking and its support shall not be less than two places connected to the ground (PE) or zero (PEN) trunk.
8. The copper core grounding wire shall be connected across the connecting plate of the non-galvanized cable trunking. The minimum allowable cross-sectional area of ​​the grounding wire shall not be less than BVR-4 mm.
9. The two ends of the connecting plate between the galvanized cable trunking should not be connected to the grounding cable, but the two ends of the connecting plate should not be less than two connection fixing bolts with lock nuts or lock washers.
Trough installation requirements
1. The installation position of the slot should be in accordance with the construction regulations. The deviation should be determined according to the actual situation, but it should not exceed 50mm.
2. The deviation per meter of slot level cannot exceed 2mm theoretically.
3, the vertical slot should be perpendicular to the ground, without any tilt phenomenon, the vertical deviation can not exceed 3mm.
4. The joints between the trunk section and the joints are jointed with the joint plate, and the screws should be tightened. The deviation of the levelness of the two-slot joints should not exceed 2mm.
5. When the straight section bridge is more than 30m in size, there should be ascending and contracting joints, and telescopic plates should be used for connection.
6. The radius of turn of the wire should not be less than the radius of the erosion of the groove.
7, Cao Gai should be bones and hangers to maintain vertical and orderly. No skew phenomenon.
Trays features
1. The wire slot has excellent characteristics such as flame retardant insulation, high impact resistance, low toxicity, and acid resistance. Wire slot has strong insulation, environmental protection and beautiful appearance, and it can last 50 years if it is used correctly.
2, wire slot for a variety of installation projects. Products have a variety of grades to meet the needs of different levels or regions. PVC wire troughs and fittings are complete in specifications and can be used to meet various design and construction requirements. Fonts printed on the trough can be provided on request.
Editor's summary: Concerning the installation considerations of the trunking and the installation requirements of the trunking, it is introduced here, and I hope to help everyone. If you want to know more about yourself, you can follow the information on this site.
House Decoration Precautions Construction Installation Home Decoration Precautions Decoration Precautions House Decoration Precautions Cable Trough Installation
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