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BS7671 Insulation resistance testing

grahamro

Interesting webinar on Ammend 2 this am
Insulation resistance testing.............................2 stages................500v first fix.................250v second fix........................
Nice idea and we should have some form of testing for first fix but inevitably with the builder/ plasterer standing right behind you with trowel in hand how often does/will this happen?

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    but inevitably with the builder/ plasterer standing right behind you with trowel in hand how often does/will this happen?

    I guess it doesn't have to be done before plastering - just before you start connecting current-using equipment would do (and having a few passive accessories (e.g. switches) in place probably makes it easier in that you can likely test most of a circuit in one go rather than each cable individually), plus you're then testing at 500V for any damage the plasterer has done with his razor sharp trowel.

       - Andy.

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  • 0

    but inevitably with the builder/ plasterer standing right behind you with trowel in hand how often does/will this happen?

    I guess it doesn't have to be done before plastering - just before you start connecting current-using equipment would do (and having a few passive accessories (e.g. switches) in place probably makes it easier in that you can likely test most of a circuit in one go rather than each cable individually), plus you're then testing at 500V for any damage the plasterer has done with his razor sharp trowel.

       - Andy.

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