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yeah the designer may well be pushing his luck. Just hope they don't have all the family over for Xmas, cooking dinner, ASHP running with the under floor heating on 😁

hmmm....are there electric showers or they off the cylinder/heat pump? What KW are the hest pumps out of interest?

We fitted the fused switch and do so on every block that we do to give a single point of isolation for the whole building. Off the top of my head you would need a single point of isolation to meet some of the requirements of chapter 53 from bs7671 point of view . I did think the DNO insisted on...

UKPN.

Its been done like this for a few years round my way. Most recent one I've done which I completed a few weeks ago for a block of 19 flats. 400A Glasgow fused switch that comes off the head, from fused switch to ryefield, ryefield to meters, meters to switch fuses which the swa's are glanded off...

yes exactly. But if its satisfies the regs mentioned earlier then the situation explained by the OP could comply.

service cable is the cable entering the property from the network usually underground but sometimes over head. service head is the cutout that the service cable enters which has a fuse to protect the distributors equipment. meter tails are the cables that come from the service head to the...

from the looks of what the OP has said probably done because there was no neutral at the switch. Maybe didn't want the distribution of trying to get up the wall and across the ceiling to the light position.

definitely. Effectively for want of a better phrase its being back fused as protected from over current by having the FCU. Most commonly seen in factories and the like when they have an overhead busbar say backed up by 400A fuses and 25mm tapping of the busbar to feed a 80/100A switch fuse.

As Essex points out it could well do comply although not the conventional way of doing things Imo (domestic wise any way) but would have to satisfy the requirements of section 434 and 433.3.1

I think the other circuit in the switch is a lighting circuit and nothing to do with the spur from the cooker circuit.

As above...I also fit visonic for wireless or texecom for hard wired.

your scheme provider might stipulate intervals for using a checkbox between annual calibration if you belong to one.

Do you monitor this to check stability out of interest as the first 4ft of ground is the most susceptible to seasonal changes? Do you think you would have a sub 1Ohm reading when the ground it frozen being only 4ft in? I honestly think its great you have a sub 1Ohm reading on a 4ft...

only required to be zoned if over 150m².

Installing one 4ft twig isn't going to give you stability.

Hager for me..design 10 or design 30. The design 30 comes standard with the tail clamp and cable protector plate for rear entry instead of using grommet strip. With both designs you can get them with or without knockouts.

If there was extraneous conductive parts that required bonding in the garage, the supply is TNCS, the csa of the suppliers neutral is 35mm² or below, the size of the bonding conductor would have to be a minimum of 10mm². However if the bonding conductor was buried in the ground then the minimum...

what is the installation method of the 10mm T&E?