Rank: New forum user 
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When electricians disconnect wiring for a 3 phase motor, do any regulations (Such as the wiring regulations) state the exposed cables must be taped or capped? The isolator supply was turned off and locked off. Any help appreciated
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Rank: Super forum user
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Do you mean left exposed whilst work was happening or left completely?
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Rank: New forum user
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The wires were left exposed whilst the motor was removed and then left exposed for approximately 24 hours until the motor was repaired and returned ready for re-connection.
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Rank: Super forum user
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Hi JW Neither the Electricity at Work Regulations 1989 or the IET (formerly IEE) Wiring Regulations are explicit on such issues. However, what you describe doesn't sound particularly concerning IF this motor cannot be inadvertently re-energised from some alternate source of power. EAW Regs 1989 (and their 1908 and 1944 forerunners) prohibit "live work" except under limited circumstances. So, I would expect whatever needs to be done on the motor to be completed and the wiring put back so as to be protected before the padlock is removed and the equipment re-energised.
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Rank: Super forum user
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The Electricity at Work Regulations detail conductors which could give rise to danger (i.e. live) to be suitably covered or insulated. However, in your case, as the conductors are not live and cannot give rise to danger so therefore as Peter has indicated, there is no particular issue as long as proper isolation has taken place, and the conductors cannot be made live inadvertently. So, you (or your company) should have a procedure for Lock Out, Tag Out and Test Out (LOTOTO). This procedure should include tagging the equipment that has been isolated. This would typically include a tag on the isolator and a tag on the exposed wiring so people would know the exposed wiring has been isolated.
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