Anyone go the BBB to hand - reg regarding mix and match

[Octopus]

So next week I have to add a circuit to this board:

My plan is to add a Wylex breaker ........... but how would the BBB wording cover this?

I haven't bough the BBB yet!

After all, its not me that added the 3rd party breakers

 

[The Ghost]

I cannot imagine in any way the integrity of the CU would be compromised in any way by a different brand I think it is nonsense. However I do compy with regs and don't mix as I do not wish to increase my liability through non-compliance.

 

[Pete999]

I cannot imagine in any way the integrity of the CU would be compromised in any way by a different brand I think it is nonsense. However I do compy with regs and don't mix as I do not wish to increase my liability through non-compliance.

The way I read it is, you can mix providing the manufacturers agree and that you install to the highest professional standards, yes I agree Vorty a ridiculous ruling, one I believe the IET will regret,and hopefully rescind.

 

[westward10]

It is a long awaited Reg in my opinion. If you mix and match the onus is upon you to provide the necessary information and documentation the same as any manufacturer does to verify compliance with relevant standards.

 

[The Ghost]

I regulary put Schneider MCB etc. in old Merlin Gerin/Sqaure D DBs' Could just as easily been Wylex or MK depends who bought the rights really doesn't it?

 

[westward10]

Schneider provide plenty of info for the compatibility of their new devices in existing Merlin Gerin and Square D boards. Square D and Merlin Gerin were acquired by Schneider in 1991 and 1992 respectively and continue to produce devices for existing boards under the new brand.

 

[Ian1981]

It is a long awaited Reg in my opinion. If you mix and match the onus is upon you to provide the necessary information and documentation the same as any manufacturer does to verify compliance with relevant standards.

Sadly It won’t stop people doing it tho.
The ones who constantly post on other sites asking what mcb/rcbo will fit in an xxxxxxxx consumer unit.

 

[davesparks]

Like Hager getting in the reg about MF junction boxes to stop Wago from getting into the european market?

This seems highly unlikely, do you have any evidence to support this claim?

Wago are a German company and have been in the European since day 1.

 

[The Ghost]

This seems highly unlikely, do you have any evidence to support this claim?

No but you can look into the history of the Amd 3 and the reg regards MF and Hager on the JPEL board and wago trying to get into the european market at the same time as the reg was inserted, and draw your own inferences. Wago were held up by this reg and getting MF rating on their product. As to it seeming highly unlikely, don't be naive, it is part of the cut and thrust of normal business practice. (526.3 17th ed amd 3)

 

[LankyWill]

I thinks it’s just a plea to get people to buy manufacturers equipment, if they are designed to the BS standard they should be compatible with each other. It’s like saying you fitted a Hager board and now must fit Hager accessories because they are compatible.

 

[Wilko]

With my tin hat at the ready - majority of single phase 100A installations have fault current less than 3kA, obviating the need for the 16kA rating (6kA being plenty ...). Other than this rating all the other factors seem to be good workmanship (?).

 

[Deleted member 26818]

With my tin hat at the ready - majority of single phase 100A installations have fault current less than 3kA, obviating the need for the 16kA rating (6kA being plenty ...). Other than this rating all the other factors seem to be good workmanship (?).

I would have to disagree with that.
My experience is that the PFC is often greater than 3kA and can be greater than 6kA.
Yhough, can’t say that I have experienced many times where the PFC is greater than 10kA.

 

[Ian1981]

I would have to disagree with that.
My experience is that the PFC is often greater than 3kA and can be greater than 6kA.
Yhough, can’t say that I have experienced many times where the PFC is greater than 10kA.

Really?
Greater then 3ka on a 100 amp single phase supply?
I’ve never experienced it personally

 

[Deleted member 26818]

Really?
Greater then 3ka on a 100 amp single phase supply?
I’ve never experienced it personally

Don’t quite understand your incredulity.
Why exactly do you thing they introduced type testing and the 16kA breaking capacity?
It wasn’t because PFC is never greater than 3kA.

 

[Ian1981]

Don’t quite understand your incredulity.
Why exactly do you thing they introduced type testing and the 16kA breaking capacity?
It wasn’t because PFC is never greater than 3kA.

It maybe type tested to 16ka but it’s hard to imagine an 100amp single phase installation with a fault current at the origin of over 3ka.
As I said never experienced one so high personally as I’ve never had a ZE low enough even with any parallel connections.
Perhaps you have with installations so close to the transformer?

 

[Deleted member 26818]

You are aware that PFC is the highest of the measured values for PEFC or PSCC?