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So you are doing an EICR next year and you are inspecting a consumer unit with these 2 "makes" of RCBO's in it ...

[ElectriciansForums.net] EICR's after 1st Jan 2019 ....


So is it:
 
Which comment was that then? Because the comment I made (which you disagreed with) was about not assuming that different products are the same just because they come in similar looking packaging.

So what would be your reasoning for departing from regulations relating to mixing different brands in the same distribution board?

You are not reading what I am typing. I am talking about the comment about being up
In front if a judge over it. Which I still stand by - a ridiculous comment.
 
My thoughts have always been, that Type tested boards are just to increase breaking capacity.
Type tested boards under the old standards, were rated at 16kA, whereas the individual components may only have been rated at 1kA.
As such, as long as every component fits correctly and has an individual breaking capacity greater than the PFC, there would have been no problem.

This new requirement which came into force for domestic installations with the 17th edition 3rd amendment and will now apply to all installations, requires all boards to be type tested and I assume have an overall breaking capacity of 16kA.
How that applies to installations with a PFC greater than 16kA, I do not know?
Perhaps the overall breaking capacity for non-domestic boards will be greater?

My main concern, is that this is another requirement that does nothing to improve safety.

I also wonder whether this requirement is legal?
Back in the 80s, the government started a process that is supposed to increase our choices.
We can now get our electricity from from a supermarket, our gas from a phone company our water from..... actually, we’re not allowed to get water from anyone other than our local water company, but you get the gist.
Off topic but you can have a private water supply.

Very interesting and informative post overall though.
 
Don't know how this would fit with EICRs but on an EIC, how about noting it as a non-compliance and detailing what one had done to ensure an equivalent level of safety?:

- Visual inspection for correct connection to bus bar.

- Ensuring breaking capacity of the individual component exceeds Isc.

- Not sure about heat dissipation as mentioned by Essex, but I'm thinking this may not be a safety issue as it will likely mean that the MCB will trip at a lower current than its rated current.
 
The manufacturers of those two RCBOs have made a conscious attempt to differentiate them selves from each other by branding them differently.

It's not for the end user, installer or even inspector to jump to the conclusion that just because both manufacturers have used the same style of casing, which may well be made by the same manufacturer, that the product inside is exactly the same - I think I would struggle to form a decent court-worthy argument that the reg relates to the manufacturer of the casing and because they look similar the different brands can be ignored.
Substituting a product which looks similar but carries a less well known brand is almost always done for financial reasons and I think a judge or jury would be likely to pick up on that.

C3.

It would be up to the inspector to contact the manufacturer(s) to confirm whether or not they are compatible the two pictured above are actually both lewden I believe but in the case of a Hager with a Wylex I’d code it but on the other hand a Schneider in a Merlin Gerin board I would not because Schneider is merlin gerin and have confirmed that their breakers are fine to use in a merlin gerin board
 
You are not reading what I am typing. I am talking about the comment about being up
In front if a judge over it. Which I still stand by - a ridiculous comment.
So what's your actual point? You pick and choose which regulations you want to comply with based on how "ridiculous" you think they are?
Maybe the forum should feature a "ridiculous" button so you can just sit there tapping that without having to type anything?
 
Both those RCBOs are made by Lewden, one before the recent rebranding, one after. No issue to report.

I also will not be reporting on compatible Schneider devices in Square D and Merlin Gerin boards. Or Hager devices in Ashley boards. Or Tenby and Legrand mixes, or MEM and Eaton mixes, or any of the other combinations I have previously had confirmation of compatibility from the current manufacturers.

The biggest issue I have ever seen with mixing brands is the mixing of different patterns of breaker. By patterns I mean the way they sit on the dinrail and how the busbar enters the terminal. Some have always been of the opinion that close enough is good enough and a little tweak will see the busbar pull in. I have always sought to use the proper gear for the existing equipment, or else not done the job.
 
So what's your actual point? You pick and choose which regulations you want to comply with based on how "ridiculous" you think they are?
Maybe the forum should feature a "ridiculous" button so you can just sit there tapping that without having to type anything?

You know what Adam, I'd find that quite handy on here. :rolleyes:
 

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