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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> new consumer unit https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1097849472 Message started by yozman on Oct 15^th, 2004, 3:11pm

Title: new consumer unit
Post by yozman on Oct 15^th, 2004, 3:11pm

i am extending house which requires me to move service boxes to outside wall lece board are moving box but are only putting 1metre tails in. fuse box is 3 metres away
from new box question is i have been told i need to put a
isolating switch inbetween because of distance is this true
and what length can you buy tails in plus how much will a sparky charge for this job

Title: Re: new consumer unit
Post by L.Spark on Oct 15^th, 2004, 3:17pm

Hey Yozman

Double Insulated meter tails can be bought im any length from an electrical wholesaler, it is likely you will need a fuse switch because of the distance of the cable yes, but not entirely sure about that one.

How much work is to be done, is the electrican to put in new tails and an isolating switch or a new consumer unit aswel?

Title: Re: new consumer unit
Post by yozman on Oct 15^th, 2004, 3:26pm

just want the tails putting in from consumer to service box
i will be installin new fuse box

Title: Re: new consumer unit
Post by L.Spark on Oct 15^th, 2004, 4:07pm

As long as you feel your able to do that safely and succesfully �:)

Title: Re: new consumer unit
Post by Lectrician on Oct 15^th, 2004, 4:21pm

Many DNO's (lecky board) will allow any length tails now, but there are still a few that will only allow a spec distance.

BUT

This distance is usually 3m. �(many houses have a meter box outside, and the CU high up on the wall inside). The tails from your CU to the meter are YOUR responsibility, if the isolator is theirs, the tails from the meter to the isolator are THEIRS, and the tails from the isolator to the CU are YOURS.

I suspect the 1m rule they have stipulated is the max distance they will run to the isolator(which is usually with in the meter box).

You should ask your DNO what their max length of tails is, and you could install these from your CU to their meter.

Title: Re: new consumer unit
Post by The_Trician on Oct 15^th, 2004, 4:23pm

Some Electricty boards don't like long tails, hence the rule, but since privatisation they don't seem to give a ferk.

You'll need a 100A DP switch between the service cut-out and the meter. If you are with Powergen, they'll do this for free. Meter tails (25mm) are around a quid plus vat per metre.

TT

Title: Re: new consumer unit
Post by supersparky on Oct 15^th, 2004, 5:36pm

also need location for a price....you might even be in somones area

ss

Title: Re: new consumer unit
Post by yozman on Oct 15^th, 2004, 6:05pm

in rotherham south yorkshire
i would run tails to both units just need qualified trician
to screw both ends in? :D

Title: Re: new consumer unit
Post by The_Trician on Oct 15^th, 2004, 6:32pm

I'm in Derbys, but Rotheram's a bit of a long run to do just to tighten up four big screws!

TT