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In this video, I show the principles when connecting live electricity and what you need to know before doing it, for safe live electricity you must wear labor protection, how to connect live electricity safely, then cold wire Before and after the fire wire, the principle of live electrical connection is to isolate the load, which means that the total cb is cut off before the match, live electricity is not shocked, you must wear gloves, shoes, insulating pliers. This video is for your reference only, it is safest to follow the power outage