electrical engineer tests the operation electric control cabinet regular basis for maintenance |
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| navigate by keyword : amper appliance backgroundmain basis blue board box breaker button cabinet cicuit circuit control controls current device domestic electric electrical electricity energy engineer equipment finger flip fuse hand home indoor industrial industry isolate lights magnetic main mains maintenance man operation outlets panel plastic power red regular safety screws service shock supply switch switchboard switches switching technology tests turn volt voltage white wire |
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| Electrician engineer work tester measuring voltage and current of power electric line in electical cabinet control. |
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