1) support the wire off, do not use wire bundle, don't put the wire hung on nails;2) don't hook in the wire or switch;3) don't tie the wire to the pipe or other metal;4) drying clothes, such as the use of wire do not close to the wire;5) pay attention not to the equipment, materials, pressure on the wire;6) when the wire is laid on the metal frame, the metal frame should be protected from the ground zero, and it will be repeated grounding.
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