Immersion circuit

[Terry lambert]

Hi all

Is there a new regulation that you have to have a 4mm radial circuit to the consumer unit for an immersion ?

Many thanks

Terry

 

[EFLImpudence]

No.

Most immersion circuits are already over-spec.


Where did you hear this?

 

[Terry lambert]

A builder is just building an extention and I'm following in to fit an invented cylinder.

He says his electrician needs to install a 4mm radial back to the consumer unit

I questioned the 4mmand he says it's a new reg so that people can recognise it's an immersion circuit, and not spur off it or connect to it

 

[ban-all-sheds]

1) Ask him to ask the electrician which regulation number that is.

2) Time passes...

3) Suggest he starts using an electrician who knows what he's doing.

 

[Iggifer]

absolute tosh

 

[Terry lambert]

Electrician is attending tomorrow.

I've asked for the reg number

Should be fun

 

[deadshort]

We don't actually have all the facts to determine 4.00mm is not required ? i.e. installation method,cable length, vd and actual load.

Regards,

DS

 

[EFLImpudence]

Have you not read the thread?

 

[JohnW2]

We don't actually have all the facts to determine 4.00mm is not required ? i.e. installation method,cable length, vd and actual load.

As always, you're strictly correct but, even if (very unlikely) it needed to be 4mm², I hope you would agree that the reason would not be:

... a new reg so that people can recognise it's an immersion circuit, and not spur off it or connect to it

... which is clearly absolute nonsense. In fact, it would have quite the opposite effect of what this daft 'electrician' has suggested. If an electrician saw a 4mm² cable, about the last thing (s)he would think would be that it was an immersion circuit, since I doubt that (m)any people have ever seen 4mm² cable in a domestic immersion circuit!

Kind Regards, John

 

[Terry lambert]

The builder has messaged back

Reg number for part P ?

As in there won't be one

 

[JohnW2]

Have you not read the thread?

He probably has but is 'being clever' by pointing out that we haven't been told that it's not a 6kW immersion and/or that the cable is not surrounded by thermal insulation and/or that the cable run isn't 150 metres long.

I know that one should not 'assume', but ......

Kind Regards, John

 

[Terry lambert]

It's 3KW in a three bed semi, and not far from consumer unit, not sure about the insulation

 

[JohnW2]

The builder has messaged back ... Reg number for part P ? ... As in there won't be one

There won't be. "Part P" of the Building Regs contains no 'regulations' as such, hence no regulation numbers. In fact, it's just one sentence, essentially saying that domestic electrical work must be undertaken safely.

He has told you that there is a new regulation. Ask him where it is and what the regulation number is.

I have to say that if I were you, I would be telling my builder that I did not want this person doing any electrical work in my house.

Kind Regards, John

 

[riveralt]

A builder is just building an extention and I'm following in to fit an invented cylinder.

He says his electrician needs to install a 4mm radial back to the consumer unit
I questioned the 4mmand he says it's a new reg so that people can recognise it's an immersion circuit, and not spur off it or connect to it

Is there such a thing as an 'invented cylinder'?
Maybe unvented - direct or indirect - one or two elements 2 * 3kw?

As for the regulation - of course there is one - Don't listen to the naysayers here......

it is appearing the next edition of the Seventeenth edition due out six months after I paid for the latest blooming one.

 

[Terry lambert]

It's an unvented with one immersion that I invented