8500瓦的热水器一开就跳闸，一看电线才用的2.5平方，不换线要怎么解决？【城阳电工电路】

Hi everyone this is [Chengyang Electrical Circuit]]
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I am an ordinary electrician in Qingdao Shandong Province and I have been working for 18 years.
Maintenance and installation of factories equipment homes various circuits
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