meter tails / kitchen bonding / pricing

[adam.h]

Wasnt sure what section to put this in as I have a few general questions.

But a customer is having an extension with a new open plan kitchen. Their current CU doesnt meet 17th ed. and said they could have it upgraded to a larger cu to meet but faults, barrowed neutrals could be present etc etc, though, it looks like it was only installed a fwe years back. They didnt want it to be touched, so will install a smaller second one, split the supply with a set of henley blocks, but how long can the meter tails be? I'm thinking they would need to be about a meter. Have two lights and ring on rcd side and then cooker / oven and smokes on non rcd side.
As the rest of the house will not be on an RCD then all pipes in the new kitchen will need to be bonded yes?

First job I am having to price up, and as I know them will do it for next to nothing, but for a kitchen / dining room plus, with downlights and some patio floor lights, (roughtly about £450 for materials) labour, by the hour?
Someone mentioned charge about 1 to 1.5 for the whole lot, I was going to say less than 1k.
Another spark they had lined up they said was was going to "cost thousands" they said.

O yea, kitchen sinks, cant find any thing in the regs about distance for a socket from a sink. I have seen a few pretty close to sinks which I though was a bit tooo close. Anyone know where is say's about this? In the OSG I see the bathroom sink is not in a zone.

Lot of questions I know. Cheers.

 

[Mark.W]

Hi

Tails can be up to 3m long.

Pipework should be bonded anyway!

Sockets must be at least 300mm from the edge of the sink, and it states this in the building regs!

As for price how long do reckon the job will take?

 

[adam.h]

3m, thats good. lol

I was going more along the lines of supp bonding under the sink?

Must have missed the sockets by a sink. I'll have to have another look through the regs, you know where abouts is states this by any chance?

I can't see it taking to long to do. Seeing as it will all be bare it will be an easy install. probably no more then a weeks work all in tota I reckon, if thatl. But I guess you can never really tell until they make up their mind 100% where they want things to go and dont change their mind half way through
Cheers

 

[Mark.W]

It's in the electricians guide to the Building Regualtions, I only have the 16th ed here and it's on page 57. I know it hasn't changed.

With regards to bonding, I'd bond anyway it's just good practice.

A lot of sparks on here charge at a day rate of around £160/day, and then add on the materials, travelling costs etc. If it's a weeks work, I'd be looking at around £1100 - £1200.

Hope this helps!

 

[adam.h]

Cool only seemed to find hight for sockets in OSG so will have a looksy.

Yea, always thought it best top bond pipework near sinks. Though Plastic piping seems to be favoured these days which is handy
I'll be able to walk to this job, only down the road hehe.
I like to check, then double check any thing I do lol. So cheers for all the info.

 

[Spudnik]

The Electricians Guide To the Building Regs is just that...... a guide.

Although it states min 300mm it is not a hard and fast rule.

Any electrical accessories, where ever they are installed, should be suitable for its environment.

The 300 "rule" is generally accepted as being errrrr.... acceptable.