For the beauty of the room, the average family buried the wires in the wall. During the renovation, some electricians will bury the wires directly in the wall. In fact, doing so has a very big security risk. After a long period of use of the wire, the rubber wrap that wraps around the wire will age, and the repeated heating of the large current through it, as well as the time of the moisture on the cement wall, will accelerate the aging of the wire wrapper. In the event of a short circuit accident, severe cases will affect the entire building and other households, not only destroying electrical appliances, but also replacing all electrical wires. Because all the wires are buried in the wall and I don't know where the problem is, it's best to update it all.
Therefore, the long-term plan for burying wires is long. Wires with good quality and large diameter should be used, and a protective sleeve should be put on the wires. Although this will take more money and more money, it can guarantee the safety of electricity during a long period of time.
Need to pay attention to the problem when installing the wires?
1: Must use qualified PVC flame-retardant tube and qualified BV line buried in the wall, the sub-line cassette can not be buried in the wall due to the impact of beauty.
2: When the power line meets the waterway, it should be powered on and keep a certain distance. PVC pipe should be less press the head (by the head to brush PVC glue).
3: The case of strong and weak electricity cannot be worn inside a pipe.
4: Power wire must be selected according to the size of the load wire diameter (and leave a margin), a large diameter waste of money, wire diameter is too small and unsafe.
5: The installation of lights and sockets should be separated, the kitchen, living room, etc. should be divided as many as possible; empty open according to the size of the load, the outlet must install the leakage switch.
6: The wire connector must be connected; it is recommended that the connector be welded.
In short, it is safe to install the wires first. Using a qualified electrician with an electrician's certificate, a responsible electrician can be more assured.
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