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SKY

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Going to sign up for my part p next week - I have a lovely CU change in a small bungalow to do which I will submit for the inspection.

Going with Elecsa.

The small bungalow only has:
1 ring final
1 lighting circuit
1 shower
1 16a feed for the boiler

I'm just thinking that I can put in a small board with 1 RCD or do I really need to split and use a dual RCD board?
 
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S

SKY

  • Thread Starter Thread Starter
  • #3
I would fit RCBO's.
upfront 30ma RCD would be pretty shoddy in my book, one fault on the kettle etc. and the lots gone
Agree with that
 
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sparks1973

  • Thread Starter Thread Starter
  • #4
you could put a BG split load C/U in from screwfix....reasonable pricewise and not bad to work on (i`v fitted a few of em)...just make sure theres room for it first of course....and you wont need to worry about the 10% spare ways either...lol...
 

Strima

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Arms
Esteemed
For that amount of circuits I would go with RCBO's if the customer can afford it, would also make for a very neat and tidy install for you assessment.
 
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sparks1973

  • Thread Starter Thread Starter
  • #6
your BG C/Us are ..about £50...thats fully loaded...so would work out cheaper than RCBOs....
 
As above go for rcbo's. If you go for a split board separate the circuits as below.



The small bungalow only has:
1 ring final RCD 1
1 lighting circuit RCD 2
1 shower RCD 2
1 16a feed for the boiler RCD 1

This way if the lights are out they can plug in a table lamp. If the boiler has tripped they can still get washed via the shower. I'd still use rcbos, not that much more money and it will look better to your assessor.
 
O

Octopus

  • Thread Starter Thread Starter
  • #9
Going to sign up for my part p next week - I have a lovely CU change in a small bungalow to do which I will submit for the inspection.

Going with Elecsa.

The small bungalow only has:
1 ring final
1 lighting circuit
1 shower
1 16a feed for the boiler

I'm just thinking that I can put in a small board with 1 RCD or do I really need to split and use a dual RCD board?
If you do fit a board with a single RCD, I suspect you'll have a difficult conversation with your Elecsa assessor, plus a non compliance - which is NOT what you want at your assessment.

RCBO's or a dual board is the way to go IMHO.
 

Taylortwocities

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Arms
Esteemed
If you do fit a board with a single RCD, I suspect you'll have a difficult conversation with your Elecsa assessor, plus a non compliance - which is NOT what you want at your assessment.

RCBO's or a dual board is the way to go IMHO.
As

I agree, a single RCD incomer is NOT compliant. Your assessor will stamp on your fingers and make you read 314 in the regs book (Division of Installation).
314.2 is especially relavent. I suggest you have a read through this section.

I agree, the Denmans RCBO bundle is a good option, if you don't have a Denmans nearby then have a look at Contactum Contactum CP MCB's, and RCBO's. A 4 RCBO set up will be about £100.
 

telectrix

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Mentor
Arms
Esteemed
agree with above posts. deffo RCBOs. if it were not too big a job, i would also see if the RFC could be split into 2 circuits.
 

ruston

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Mentor
Arms
Esteemed
agree with above posts. deffo RCBOs. if it were not too big a job, i would also see if the RFC could be split into 2 circuits.
And maybe mention to them the advantage of wired smoke alarm or put a free battery one in for them if they are elderly. EM might be pushing it a bit far lol in a bungalow?
 

darkwood

Mod
Mentor
Arms
Esteemed
Id fit either as already suggested RCBO's or twin rcd split board with unprotected ways, then boiler is only circuit on rcbo as losing heating due to unrelated fault could be serious issue with regards to dear old lady in winter in bungalow, ive always quoted and suggested for dedicated fridge/freezer circuit and boiler circuit and most of the time it gets the go ahead.
Tripping of an rcd with boiler circuit on it can be a health risk and its within the regs for such situations to be avoided, but regarding the the fact the wiring is existing then at a minimum id put RCBO on boiler which ever board you decide to put in.
 
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Engineer54

  • Thread Starter Thread Starter
  • #15
I'm just asking myself, why would you leave a single ring circuit to supply all of this small bungalow's power. At least provide another ring to supply the kitchen's power requirements....

It wouldn't be a bad idea either, to have the light near the CU location on a separate MCB. Far better than the bungalow being in total darkness trying to find the tripped lighting MCB at the CU.

As for CU type i'd always, always go with the all RCBO route, especially on this size of installation, and the bundles that are available at relatively low cost....

EDIT...
Ooooops ....read CU change as ''Rewire'' lol!!!
 
S

SKY

  • Thread Starter Thread Starter
  • #16
My Toilet is smaller than the kitchen in this property! They have only 8 double sockets in the complete property inc the kitchen.
There ii no way i'm gonna start ripping the kitchen apart when all thats needed is a new CU.
 
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Engineer54

  • Thread Starter Thread Starter
  • #17
My Toilet is smaller than the kitchen in this property! They have only 8 double sockets in the complete property inc the kitchen.
There ii no way i'm gonna start ripping the kitchen apart when all thats needed is a new CU.
Read my Edit!!!
 
S

SKY

  • Thread Starter Thread Starter
  • #18
:wink5:
 
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SPARTYKUS

  • Thread Starter Thread Starter
  • #19
ECD Electrical components direct, 4 Rcbos about £48, plus maybe 20 snots for a small enclosure.

Wouldnt bother with a dual Rcd board anymore price diff is almost irrelevant now.
 
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SPARTYKUS

  • Thread Starter Thread Starter
  • #20
Ps in fact PREFER an old split load board to a dual. One RCCB & space for a load of rcbos
 
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SPARTYKUS

  • Thread Starter Thread Starter
  • #21
Going to sign up for my part p next week - I have a lovely CU change in a small bungalow to do which I will submit for the inspection.

Going with Elecsa.

The small bungalow only has:
1 ring final
1 lighting circuit
1 shower
1 16a feed for the boiler

I'm just thinking that I can put in a small board with 1 RCD or do I really need to split and use a dual RCD board?
Pps
S
ounds like my nans! Is it my nans!
 
S

sparks1973

  • Thread Starter Thread Starter
  • #22
I'm just asking myself, why would you leave a single ring circuit to supply all of this small bungalow's power. At least provide another ring to supply the kitchen's power requirements....

It wouldn't be a bad idea either, to have the light near the CU location on a separate MCB. Far better than the bungalow being in total darkness trying to find the tripped lighting MCB at the CU.

As for CU type i'd always, always go with the all RCBO route, especially on this size of installation, and the bundles that are available at relatively low cost....

EDIT...
Ooooops ....read CU change as ''Rewire'' lol!!!
or an A2 radial eng....
 
F

Fin170

  • Thread Starter Thread Starter
  • #23
I'd go with a "16th Edition" board and put the ring on it's own RCBO. That's if there is just 4 circuits and wanting to do it cheap but still get a sensible level of discrimination. Fire alarm (if they opt for one) on the the non-RCD side if you can route the cables as to not require RCD protection

Still waiting on feedback for the Curve/ wilts plus £12.50 RCBOs....sounds too cheap to be good until further notice :wink5:
 

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