hi there doing some work with my gaffer just for my own mind a 60 amp fuse at the main cut out with 16mm2 tails well i assume they will be what size of main switch for the consumer unit ? could 100A main switch be put on that ?
Hi guys
I'm installing a CU in a new build and have a couple of questions I need some guidance with regards to the meter tails.
I need to drill a hole through the wall (for the meter tails) to access the main supplies which are located in the recessed box on the outside of the property. I am...
Evening all
Guy who owns a small industrial unit currently has 100amp 3phase
At the moment he only have a single phase baord with feeds a few lights and sockets. He wants to install a 20a 3phase supply for a something
The mem 20a 3phase switch fuse i got only allows upto 16mm tails and not...
Been asked to do an eicr on a flat above a shop.
Tails are run in concentric cable from isolator switch by the meter, to the main switch in fuseboard.
Never run into this before so not if this is still deemed acceptable or not? Any advice, reg numbers?
Thanks in advance.
Hi,
I am currently studying for my 18th edition regs update exam and came across a video by
SparkyNinja on you tube.
I think SparkyNinja is very good and produces high quality content.
However I disagree with his interpretation of regulation 434.2.1 (i)
In his video he says you need a fused...
The installation is TT.
The meter box has been moved by the DNO. The tails will now be >3m so I will be fitting a switch fuse. I was planning on removing the DP switch in the switch fuse and replacing with a 100mA S type RCD. I would have put one in place of the main switch in the CU so this...
Working on a new build site i've come back to a property that i'd 1st fixed to find someone has cut all the cables going to the exterior of the house including the 25mm meter tails in the meter box.
The house has been boarded so renewing the cables isn't really an option. What would be the...
My customers meter is being moved. The distance to the consumer unit will be approx 10m. I'll be installing a metal switched fuse in the meter. I cannot run any cables up the outside as it is having some kind of wooden finish and the customer does not want anything else on show.
I can only see...
Hey all,
Excuse the ignorance here but I wonder if you lovely folk might have any opinions or better still be able to point in the right direction in the BBB.
I am being asked to move a CU from its current position, behind a fitted kitchen, under the sink and totally inaccessible, except to the...
Hi guys. Just a quick question. If changing a board only and tails are in wall burried or in a cavity, am I required to change them if they are existing? Or can I note it on cert that they was existing? In my eyes they need changing as if in wall rcd protection is needed and if in cavity there...
Hello all,
I am working on a property & they need the consumer unit changed.
The slight problem i have is the tails are on 16mm. But the meter is approx 10-12m (tail length) from consumer unit location. Is this length permissible.
There is a KMF at the meter but the customer does not want the...
So I have a consumer unit to change, the consumer unit was in the garage but it has been converted to living accommodation years ago. The utility cupboard is on the outside wall, the consumer unit is obviously on the inside wall but near the ceiling.
The issue is when they changed the garage...
I will be fitting a henly block to split the meter tails. I'll be taking some tails 1-2m a new shower consumer unit (63A RCD and 45AMCB) with no spare ways to fit extra MCB's. I'm not sure what the cutout fuse size is.
I was planning on using 16mm tails but would 10mm tails be acceptable...
I work with temporary electrical installations to construction sites at the moment and have a query related to supply arrangements.
The supply earthing sysytem is a TT type. The main cut out fuses I've been told are 200A and the supply tails are 70mm in a three phase arrangement.
These 70mm...
Any suggestions as to a good looking (in a modern building) retrofit for a double flourescent light fitting, the current lights are similar to a Knightsbridge 2 as below. Have converted some of the below to LED which I think is the most cost effective solution but interested if anyone has...
Did a job earlier in a new build, part of a 5 year old new build estate in the darkest depths of kent. Anyhow opened up CU and saw 16mm tails so assumed would be on 80a fuse as there not huge demand. Then outside to check service head and main fuse is labelled 100a ?, the tails are 16mm t&e.
I...
The existing C/U is at almost ceiling height in a room and the old tails are plastered in the wall below it before going outside to the meter cupboard (they have no protection and are just covered in plaster). The tails have to be upgraded when the C/U is replaced, so I could take the option of...
bit of reassurance on coding
I have 3 phase 3x150a (checked with supplier) incomer feeding meter in 50mm tails- 5omm tails to 3x blocks from meter
from each block tails to various isolators all not exceeding 1m in the same cupboard, the highest fused isolator at 60a being fed with 16mm and...
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