Proving an IT (Unearthed) motor dead to allow access to its conductors

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  • 2011/12/28 at 4:48 pm #10740
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    Can anyone tell me if there is a standard or procedure for proving dead the conductors of a motor for the following systems, both unearthed marine systems.

    Testing I assume will differ to that of an earthed system?

    LV unearthed system
    HV unearthed system

    Due to no earth reference within IT systems is a between phases test the only type required? Proving obviously before and after or would I require to test any other way?

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