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RCBO installtion in old MCU following EICR Report

Discuss RCBO installtion in old MCU following EICR Report in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

Attached from BS 7671:2018.

"The regulations apply to the design, erection and verification of electrical installation, also additions and alterations to existing installations".

Adding RCBOs is an addition and/or alteration to an existing installation the way I understand this so it would need to comply with BS7671:2018 rather than the original standard at the time of the installation 20 years ago when my MCU was installed. I guess that why these electricans won't touch RCBOs in plastic units and advising new consumer units but I could be wrong.
 

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Deanp35 said:
Attached from BS 7671:2018.

"The regulations apply to the design, erection and verification of electrical installation, also additions and alterations to existing installations".

Adding RCBOs is an addition and/or alteration to an existing installation the way I understand this so it would need to comply with BS7671:2018 rather than the original standard at the time of the installation 20 years ago when my MCU was installed. I guess that why these electricans won't touch RCBOs in plastic units and advising new consumer units but I could be wrong.
Click to expand...

If what you say was true then it would mean nobody could ever add an RCBO to a plastic consumer unit!

You have had good advice on this forum.
 
Does changing an mcb to an RCBO come under “like for like” replacement or maintenance” or is it too much of a job and becomes “an alteration or addition”?

You’re adding a protection method… much like changing a standard switch fuse to one with an rcd built in.
It is no less safe than it was before. (Not safer, just no less safe)
 
DPG said:
If what you say was true then it would mean nobody could ever add an RCBO to a plastic consumer unit!

You have had good advice on this forum.
Click to expand...

Thanks. Yes thats what I thought as well about RCBOs. Problem is finding someone who will do this. I mean yesterday the guy told me one way is to have a metal enclosure around the front consumer unit to get around the plastic issue otherwise its a C2. I am aware some are selling bespoke metal cabinets for MCUs but is it necessary? I don't think it is as we know. Idally there should be a place where people can source electricans who can do this job. Nearly everyone just wants the bigger job of changing the whole fusebox.
 
I know Wylex did retrofit metal covers and being part of the same group Crabtree may well do. I have no idea if this will fit but it maybe worth asking the question.
www.electricalcounter.co.uk

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westward10 said:
I have just emailed Electrium to see if retrofit covers are available because the electrician who claimed to have spoken to them is incorrect to say they said RCBOs, busbars etc.... are not available.
Click to expand...

I did this too before. Karen Sambrook is the only technical engineer who responds to emails at the moment from Electrium and she was the one who said no RCBOS and busbars are available for my unit.
 
westward10 said:
I know Wylex did retrofit metal covers and being part of the same group Crabtree may well do. I have no idea if this will fit but it maybe worth asking the question.
www.electricalcounter.co.uk

Crabtree 512/FLA Starbreaker 12 Module Consumer Unit Flush Lid Kit

FREE Delivery (ÂŁ150+) - Buy the Crabtree 512/FLA for just ÂŁ43.19 and view our range of Starbreaker Accessories online today!
www.electricalcounter.co.uk www.electricalcounter.co.uk
Click to expand...

My unit measures 365mm by 220mm sitting inside a flush mounting kit in the wall measuring 390mm by 255mm. None available for my unit.
 
Deanp35 said:
My unit measures 365mm by 220mm sitting inside a flush mounting kit in the wall measuring 390mm by 255mm. None available for my unit.
Click to expand...
Me personally would just fit a fusebox d/p rcbo, spd consumer unit whether it be flush or not and have done with it, especially being as it's going to be rented.
 
mainline said:
Me personally would just fit a fusebox d/p rcbo, spd consumer unit whether it be flush or not and have done with it, especially being as it's going to be rented.
Click to expand...
It appears this is the only option I have. Attached image of the inside of my fusebox the last electrican took. He advised he would only install a MK fusebox because the incoming two grey tails are on the left and MK ones are also on the left and moving them to the right to install other brands like Fusebox where the main switch is on the right would be a difficult job to extend the tails over. On the back of the front lid cover it said part number 61418.


[ElectriciansForums.net] RCBO installtion in old MCU following EICR Report(
 
Deanp35 said:
It appears this is the only option I have. Attached image of the inside of my fusebox the last electrican took. He advised he would only install a MK fusebox because the incoming two grey tails are on the left and MK ones are also on the left and moving them to the right to install other brands like Fusebox where the main switch is on the right would be a difficult job to extend the tails over. On the back of the front lid cover it said part number 61418.


View attachment 115965(
Click to expand...
I wouldn't think extending the tails would be too difficult.

Is there a chance of renewing the tails or add an isolator ?
 
If it were my house, i would be tempted to make some accurate measurements and send the sketch of the new front panel to a waterjet/laser cutting company and have a replacement front cover made out of polished stainless steel with all the idents etched into it.
Last time i had something like that made for me it came under the ÂŁ50 minimum order value.
 
James said:
If it were my house, i would be tempted to make some accurate measurements and send the sketch of the new front panel to a waterjet/laser cutting company and have a replacement front cover made out of polished stainless steel with all the idents etched into it.
Last time i had something like that made for me it came under the ÂŁ50 minimum order value.
Click to expand...
Thanks. Do you know the name of the company that does this?
 
last one i did, i used a company called aquajet in coventry. but there are loads of people doing that sort of thing
 

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