Consumer Unit proximity to combustible material

Good afternoon

We are looking into installing a metal consumer unit within a wooden kitchen cupboard.

I was looking through BS7671 but cant find any reference as to how close can the CU be to a wooden surface since the wooden cupboard that would host the CU could be considered as a combustible.

Am I missing something?

Is there anything in BS7671 I have missed?

We are looking at the minimum dimensions that the kitchen cupboard needs to have in order to host the CU.

Thanks

Parents
  • install the Consumer Unit (metal CU) above the kitchen in a locked dedicated cupboard.

    If it's high up - what's it like for access? Not just for staff resetting MCBs/RCDs but general maintenance - repairs and periodic inspections? BS 7671 has requirements for accessibility (e.g. 132.12) as do more general H&S stuff. Would staff need a ladder to reach? (working at height) or would it involve leaning over from the top of a ladder (because you can't get the ladder closer than the width of the worksurface underneath)?

       - Andy.

Reply
  • install the Consumer Unit (metal CU) above the kitchen in a locked dedicated cupboard.

    If it's high up - what's it like for access? Not just for staff resetting MCBs/RCDs but general maintenance - repairs and periodic inspections? BS 7671 has requirements for accessibility (e.g. 132.12) as do more general H&S stuff. Would staff need a ladder to reach? (working at height) or would it involve leaning over from the top of a ladder (because you can't get the ladder closer than the width of the worksurface underneath)?

       - Andy.

Children
  • I have seen DBs placed in questionable positions in a lot of apartments / houses in the UK. I think the BS7671 regulations need to give a more definite answers to aid safety of occupants & ease maintenance. 

    Placing a CU high away in a kitchen cupboard is just one of the many cases. As an electrical design engineer, I believe a proper review of the apartment would help identify better suitable locations. Look around for some dead space maybe behind the kitchen door.  I would suggest a mounting height of about 1.8Mtrs AFFL to top  frame. A recessed enclosure with locks would be a good fit.