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BS7671 Amendment 2. Off-peak E7 consumer unit RCD and SPD.

Sparkingchip

Two new consumer units, peak and off-peak each remote from the intake with seventeen metre SWA distribution circuits.

The peak consumer unit will have Type A RCDs and a Surge Protection Device, is the off-peak consumer unit okay with a Type AC RCD and does it need another Surge Protection Device?

Andy.

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    I have ordered a nine module consumer unit with a main switch for the off-peak.

    Main switch two modules, SPD and MCB another two modules, plus the RCD again another two modules, which leaves three usable ways in a nine module consumer unit for the heater circuits.

    The cost comes out about sixty quid more than a simple consumer unit with a main switch and MCBs as we would have installed a few years ago, although not a huge sum it’s tripling the cost of the consumer unit.

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  • 0

    I have ordered a nine module consumer unit with a main switch for the off-peak.

    Main switch two modules, SPD and MCB another two modules, plus the RCD again another two modules, which leaves three usable ways in a nine module consumer unit for the heater circuits.

    The cost comes out about sixty quid more than a simple consumer unit with a main switch and MCBs as we would have installed a few years ago, although not a huge sum it’s tripling the cost of the consumer unit.

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