Several safety issues that are easily overlooked in the construction of home improvement circuits?

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Several safety issues that are easily overlooked in the construction of home improvement circuits?

Several safety issues that are easily overlooked in the construction of home improvement circuits?

RIFENG CABLES

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Safety precautions for circuit construction

01 There are many faults in the wire connectors The first thing an experienced electrician needs to check in the face of a line failure is the wire connector. The construction of wire joints is exquisite: (1) All the production of wire joints must be carried out in the junction box, and the joints must not be made in the threading pipe. (2) After the wire joints are made, the insulating tape should wrap at least three layers, and the joints and joints cannot touch or cross.

02 Hidden dangers in exposed wires Sometimes because the threading pipe is not long enough, when connecting with the junction box, there will be a small piece of wire exposed in the middle, which will bring safety hazards to future life. The normal practice is to use a cup comb to tighten and fix when this happens, and it is strictly forbidden to expose the wires.

03 The casing prevents multiple wires According to the circuit construction specifications, the cross-sectional area of ​​the wires in the protection tube should not exceed 30%-40% of the cross-sectional area of ​​the tube. If multiple wires are sheathed in the same protection tube, once the current is too large, the wires will heat up, and the space in the tube will be too small. The heat dissipation speed is not fast enough, it is easy to cause fire problems.

04 Tin foil package to ensure safety The intersection of strong and weak electricity must be wrapped with special tin foil, otherwise, not only will it be easy to cause safety problems, but also may cause strong magnetic interference, which will affect the viewing effect and network data transmission;

05 The wire color must be uniform The colors of live wire, neutral wire and ground wire must be uniform. Sometimes the wires may not be long enough and need to be connected. In order to save trouble, the construction staff randomly find the wires of different colors that have not been used up before to splice. This is easy to cause confusion, and it is difficult to distinguish when the colors are not uniform. Normally, red and yellow are the color codes of the live wire, blue and green are the color codes of the zero wire, and the yellow and green wires are the color codes of the ground wire. If the construction is uniformly classified according to this color, later repairs will be easy to find the problem.

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