just for interest (perhaps) OCP for RCCBs

Oh dear, here we go again, more new CUs because the regs changed! Except that they did not, and this manufacturer's instruction is spurious. The next thing will be that the type-tested CUs with 2 60A RCDs, which should have tested them with a 100A fuse in place, cannot have been completed properly or passed the testing, which does test everything at the rated current of the supply fuse! It looks like an attempt to sell RCBOs to me, I wonder how they survive a 7kA Earth fault? They still have to break 7kA even if rated at 6A.

On a better note, most properties have 60A main fuses, but as the inspector cannot tell because they are sealed, we now need to follow a new manufacturer's instruction based on a BEAMA leaflet, after the fact.

This will come up for much more discussion in JPEL/64 because they knew what BS7671 actually said and failed to provide the correctly rated product but sold it as compliant. A lot of replacement CUs free of charge very soon I should think, this is blatant misselling.

Oh dear, here we go again, more new CUs because the regs changed! Except that they did not, and this manufacturer's instruction is spurious. The next thing will be that the type-tested CUs with 2 60A RCDs, which should have tested them with a 100A fuse in place, cannot have been completed properly or passed the testing, which does test everything at the rated current of the supply fuse! It looks like an attempt to sell RCBOs to me, I wonder how they survive a 7kA Earth fault? They still have to break 7kA even if rated at 6A.

On a better note, most properties have 60A main fuses, but as the inspector cannot tell because they are sealed, we now need to follow a new manufacturer's instruction based on a BEAMA leaflet, after the fact.

This will come up for much more discussion in JPEL/64 because they knew what BS7671 actually said and failed to provide the correctly rated product but sold it as compliant. A lot of replacement CUs free of charge very soon I should think, this is blatant misselling.