Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Replies 10 replies
  • Subscribers 38 subscribers
  • Views 933 views
  • Users 0 members are here
Options
You may also be interested in

heat pumps and dual RCD boards new install

Newfutile

we have come across  heat pumps on type A dual (RCD) Residual Current Device boards.

BS7671 does not seem to saying anything on heat pumps, the heat pumps seem to have variable frequency drives.

is this a danger considering blinding may now mean half the property could have a blinded rcd and therefore no additional protection?

would it be reasonable to expect heat pumps to have its own double pole type B HP rcd ,will BS7671 be ammended to include what is likely to become a bigger problem as more are fitted?

Parents
  • 0

    with a minimum trigger point of 150mA above 1kHz.

    I'm in the process of fitting a heat pump at the moment - and the manufacturer's instructions say something very similar. They do however note that an RCD is only require where installation conditions require one - so on a TN system with no concealed (or armoured) cables, I reckon I'll be OK without one.

    will BS7671 be ammended to include what is likely to become a bigger problem as more are fitted

    I'm not sure BS 7671 needs an amendment - the problem is not unique to heat pumps, and it's possible not all heat pumps will have this issue. We're already obliged to follow manufacturer's instructions - so that should cover it.

       - Andy. 

  • 0 in reply to AJJewsbury

    Once the people at the IET and BSI realise that these are metal boxes placed outside, expect ever more elaborate and impossible to comply with rules, like with EV chargers.

Reply Children
No Data

Community Rules & Guidelines