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Recommended checks before CU change

Former Community Member
Former Community Member
As most of you know I’ve only been qualified for just over a year and I’ve got a quote to do for a cu upgrade.


I know I’m nowhere experienced enough to do EICR’s yet, but what would you guys recommend I check/test before doing the cu upgrade and should I do these checks/tests at the quote stage?
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    That post meter henely block may be  tempting place to disconnect the tails to the CU without removing the company fuse, not least because it is customer side.


    Be aware that some designs of the double pole blocks do not actually hold the brass blocks captive in the plastic, and they can fall out while live. open with care.

    example pic here.
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  • 0
    That post meter henely block may be  tempting place to disconnect the tails to the CU without removing the company fuse, not least because it is customer side.


    Be aware that some designs of the double pole blocks do not actually hold the brass blocks captive in the plastic, and they can fall out while live. open with care.

    example pic here.
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