1. Socket, plug abnormal or aging should be replaced in a timely manner.
2. Eliminate the power lead directly inserted in the socket for use.
3. Avoid changing the size and shape of the plug. This can lead to poor contact between plugs and sockets, damage to household appliances and plugs and sockets and even fire.
4. Unplug the plug do not pull the power cord, so easy to connect the power cord and plug the part of the pull off, resulting in short circuit, leakage, triggering fire and electric shock accident.