Why does an extension cord pierce the case?
Please tell me, the problem is as follows: when you turn on the extension cord to a power outlet, it starts punching on the body of the power strip and on the power outlet. As soon as you pull out the extension cord from the outlet, everything returns to normal and does not pierce the socket body. I tried 4 different extension cords the situation is the same at all. How to be
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If the socket is grounded, remove the cover plate and see the connection, check with a neon indicator that there is no phase on the socket body and on the grounding pin. Perhaps the installation is not neat and the insulation of the phase wire is damaged.