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Two Distribution boards supplied by one sub-main

AdrianWint

I'm in the middle of a 'discussion' over an EICR in which the contractor is claiming that two distribution boards (in different parts of the building) but fed from the same sub-main (well, split on the outgoing terminals of the supplying switch fuse) is a C2 and needs to be changed.

He is unwilling to supply a regulation which he feels this contravenes and I'm struggling to find such a reg.

What is the opinion of the learned community?

I think this is perhaps not best practice but I'm struggling with his assertion of a C2.

Comments please...... 

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    Unconventional design perhaps, but not wholly uncommon.

    Given that a C2 means 'Potentially Dangerous - Urgent remedial action required', in the absence of a declared regulation contravention perhaps the inspector would be able to provide an engineering reason as to how such danger may arise?  Assuming the 35mm submains are not buried in insulation and heavily grouped it would seem to be more than adequately protected by the 80A fuse.

    I can't see that a code should apply.

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    Unconventional design perhaps, but not wholly uncommon.

    Given that a C2 means 'Potentially Dangerous - Urgent remedial action required', in the absence of a declared regulation contravention perhaps the inspector would be able to provide an engineering reason as to how such danger may arise?  Assuming the 35mm submains are not buried in insulation and heavily grouped it would seem to be more than adequately protected by the 80A fuse.

    I can't see that a code should apply.

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