three-phase fuse in the on position and surge arrester used to protect the electrical system in the building during electrical dis

arrester automatic automation board box breaker breakers building button circuit circuits closeup component conduit connect connection control cycle devices dis discharge discharges distribution electric electrical electrician electricity electronic energy equipment fuse home industry panel plug position power protect protection safety station storm supertension supply surge switch switchboard switches system technology threephas threephase used voltage wire wiring