New fusebox necessary?

[CBE]

What If this were a large installation with thousands of circuits and you replace one six way board do you see if the entire installation is compliant?

it’s not though is it!!! Which matters.

Look at the original post

 

[Refuse to Bend]

it’s not though is it!!! Which matters.

Look at the original post

Blimey no need to shout.

 

[malbec4]

Probably my wording mixed with trying not to write an essay. “Classed as new” I'm getting at the fact (for the benefit of the op) that there is not much difference between a newly completed building and replacing a ccu. You have to comply with 7671 on both. Schedule of inspections/test results etc on both.

If you have codes or issues on any circuit how are you complying with 7671?

changing a ccu you have to apply it to the whole installation like it were new because you have altered every circuit.

You have not understood this subject very well. A new installation is a new installation. A replacement CU is an alteration. On the EIC for a replacement CU, there are going to be quite a few N/As. Routing of cables in safe zones, for example.

Are you suggesting that when a CU is replaced, every switch, socket and light fitting should be dismantled and all routes of cables visually inspected to confirm that all the wiring has been installed as per BS 7671?

 

[CBE]

Blimey no need to shout.

Not shouting, conveying strong feelings that it was going way off the mark for the original post which is no help to anyone.

 

[CBE]

You have not understood this subject very well. A new installation is a new installation. A replacement CU is an alteration. On the EIC for a replacement CU, there are going to be quite a few N/As. Routing of cables in safe zones, for example.

Are you suggesting that when a CU is replaced, every switch, socket and light fitting should be dismantled and all routes of cables visually inspected to confirm that all the wiring has been installed as per BS 7671?

already answered that previously

 

[CBE]

You have not understood this subject very well. A new installation is a new installation. A replacement CU is an alteration. On the EIC for a replacement CU, there are going to be quite a few N/As. Routing of cables in safe zones, for example.

Are you suggesting that when a CU is replaced, every switch, socket and light fitting should be dismantled and all routes of cables visually inspected to confirm that all the wiring has been installed as per BS 7671?

i understand it, but we are not at an electrical seminar. We are on a forum for someone that clearly doesn’t understand, otherwise he wouldn’t need to be here in the first place.

 

[malbec4]

i understand it, but we are not at an electrical seminar. We are on a forum for someone that clearly doesn’t understand, otherwise he wouldn’t need to be here in the first place.

I was only correcting your false statement:

Because when you change a consumer unit it is classed as a new installation so everything else within the property has to meet regs and you can’t have anything wrong with the property

That is absolute rubbish and I was clarifying it as such. Nothing to do with an electrical seminar.

 

[arrow]

We are on a forum for someone that clearly doesn’t understand, otherwise he wouldn’t need to be here in the first place.

I have a feeling you would say to the customer. I can change your consumer unit/fuse box, after I have done a rewire.

 

[CBE]

I was only correcting your false statement:

Because when you change a consumer unit it is classed as a new installation so everything else within the property has to meet regs and you can’t have anything wrong with the property

That is absolute rubbish and I was clarifying it as such. Nothing to do with an electrical seminar.

like i said about wording already, probably should have put essentially.

641.5 clearly states that any addition or alteration in an existing installation needs to comply with bs7671…… so what about that is rubbish?

 

[CBE]

I have a feeling you would say to the customer. I can change your consumer unit/fuse box, after I have done a rewire.

what exactly has that got to do with the op?

or just like making snide remarks on a forum to make yourself look like a big man?

 

[The Happy Builder]

641.5 clearly states that any addition or alteration in an existing installation needs to comply with bs7671……

It does not actually say that the existing installation has to be perfect, it says:

641.5 For an addition or alteration to an existing installation, it shall be verified that the addition or alteration complies with BS7671 and does not impair the safety of the existing installation.

Replacing the original fuse board with a new consumer unit that gives RCD protection to all the existing circuits will improve the overall safety of the installation, it will not impair the safety in any way.

 

[arrow]

or just like making snide remarks on a forum to make yourself look like a big man?

Not at all, just making a reasonable deduction from the rubbish you are posting.

 

[arrow]

Based on the current TLC cut cable prices on their website, the difference in price between 45 metres of two and three core 16 mm SWA is £124.20.

Obviously, there is no point in paying for an additional 16 mm conductor unless it improves safety.

What has that got to do with a new fuse board/consumer unit?

 

[Refuse to Bend]

What has that got to do with a new fuse board/consumer unit?

That is in another thread how have you linked it to here?

 

[Refuse to Bend]

it’s not though is it!!! Which matters.

Look at the original post

Why does it matter the size of installation the principle is the same.

 

[CBE]

It does not actually say that the existing installation has to be perfect, it says:

641.5 For an addition or alteration to an existing installation, it shall be verified that the addition or alteration complies with BS7671 and does not impair the safety of the existing installation.

Replacing the original fuse board with a new consumer unit that gives RCD protection to all the existing circuits will improve the overall safety of the installation, it will not impair the safety in any way.

Goes back to the original point i made which none of you can seem to answer.

when you complete an eic for a ccu change and you have a c3….what do you do? Ignore it? Pretend it doesn’t exist? Or put it on the eic? Oh wait you can’t because then it’s invalid.

 

[CBE]

Why does it matter the size of installation the principle is the same.

it’s not the same scenario if you are changing a sub main. This op is changing a ccu at the beginning of supply.

 

[Refuse to Bend]

it’s not the same scenario if you are changing a sub main. This op is changing a ccu at the beginning of supply.

It isn't a submain it is a distribution board.

 

[CBE]

It isn't a submain it is a distribution board.

You’re the one that brought up bs scenarios about 1000’s of circuits and sub boards/mains.

You’re either high or on a wind up.

i said this op was changing a ccu at the beginning of the supply.

 

[Refuse to Bend]

You’re the one that brought up bs scenarios about 1000’s of circuits and sub boards/mains.

You’re either high or on a wind up.

i said this op was changing a ccu at the beginning of the supply.

I mentioned thousands of circuits yes but sub boards/mains, no.
I am trying to understand why on a small installation you feel the entire installation needs to comply and where you feel it doesn't.