testing rcd x28 residual current device x29 domestic electrical consumer unit fuse box |
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| navigate by keyword : 13a amp background box british cable circuit consumer correctly current device domestic earth electric electrical electrician england english european expert fuse health interior live neutral plug power rcd residual safe safety socket supply test tester testing thirteen threepin unit voltage western white wire wiring working |
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| Testing an RCD Residual Current Device on a UK domestic electrical consumer unit or fuse box. |
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