Graham. wrote:
Two recent threads about moving a CU mentioned that an additional 100
Amp DP isolator was fitted after the meter. When is this necessary?
It's not - it's a convenience to save pulling the cutout fuse.
As my installation doesn't have one I will need to break the seal and
pull the cutout when I eventually swap my CU for a 17th edition one.
You could install your own at that time - it's nothing more than a 100A DP
main switch (from a CU) fitted in a nice Wylex slimline housing with 4 entry
holes optimised for meter tails.
Meter is in cupboard outside, and about two meters of tails though the
porch wall to the CU.
Supply is TN-S (I think).
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