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Hi everyone, this is the only channel in the KZbin of [Chengyang Electrical Circuit] ~ I am an ordinary electrician in Qingdao, Shandong Province. I have been engaged in 18 years of maintenance and installation of factories, equipment, families and various circuits to share knowledge of electricity consumption, maintenance process, various circuit maintenance example videos like my videos. I can subscribe to oh ~ / @城阳电工电路 maintenance# vlog# circuit# maintenance# knowledge# encyclopedia line transmission why is buzzing and hot, but just don't trip, the line is too thin or too long? Chengyang Electrical Circuit]