Lighting circuit for added storey

[Dumkopf]

I am adding an upper storey to my existing two storey house. It would certainly make sense to put the additional lighting circuit on its own mcb at the CU but is that a Part P requirement?

 

[telectrix]

not a part p requrement, but BS7671 has a reg.( forget the no.) about division of curcuits to minimise danger/inconvenience when 1 circuit fails, so it would be the better option to have both lights and sockets for the new floor eachon their own circuit.

 

[Dumkopf]

not a part p requrement, but BS7671 has a reg.( forget the no.) about division of curcuits to minimise danger/inconvenience when 1 circuit fails, so it would be the better option to have both lights and sockets for the new floor eachon their own circuit.

Many thanks telectrix. Much obliged to you.

 

[DefyG]

I thought adding a new circuit was subject to notification under Part P ???

 

[Midwest]

It is in England & Wales, but don't think thats the question being asked?

 

[telectrix]

part p compliance should be achieved through his biulding contol for the build. BC can inspect electrical work as part of the project.

 

[DefyG]

It is in England & Wales, but don't think thats the question being asked?

The OP's last sentence reads "but is that a part P requirement?"
Is that not a question?

 

[telectrix]

as i read the OP. he's asking if it's a requirement to put lights on a new circuit or not. ifhe does, new circuits fall under part p. if he doesn't, he falls foul of the division of circuits reg, up to a point. if ground floor lights and 1st floor lights are on separate circuits, it 's not a crime to add 2nd floor lights to 1st floor light circuit.. (he'll need to watch out for low flying aircraft though. ).

 

[SJD]

I understood that "but is that a part P requirement?" was referring to whether the new floor lighting should have its own circuit, or a separate circuit. It was nothing to do with whether it is notifiable or not.

 

[DefyG]

part p compliance should be achieved through his biulding contol for the build. BC can inspect electrical work as part of the project.

Part P wouldn't be an issue if just extending existing circuits into a new build extension, only if installing a new circuit(s) from the CU.
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I understood that "but is that a part P requirement?" was referring to whether the new floor lighting should have its own circuit, or a separate circuit. It was nothing to do with whether it is notifiable or not.

I guess we all interpret the questions differently when not exactly very clear in the OP's question.

 

[davesparks]

I guess we all interpret the questions differently when not exactly very clear in the OP's question.

The Ops question is very clearly asking whether or not part P requires a new circuit to be installed in this situation.

I don't see how you can read that any other way

 

[DefyG]

My interpretation of the Op's question is;

'If I put in a new lighting circuit for the new storey, is that subject to notification under Part P'?

Which of course would be yes but I see the view others are taking which is also correct in that it is NOT a requirement of Part P to put in a new circuit!
Perhaps I'm reading too much into it!

 

[davesparks]

My interpretation of the Op's question is;

'If I put in a new lighting circuit for the new storey, is that subject to notification under Part P'?

Which of course would be yes but I see the view others are taking which is also correct in that it is NOT a requirement of Part P to put in a new circuit!
Perhaps I'm reading too much into it!

How on earth did you get that from the OP's question?
There is no mention of notification, no mention of if,

Yes I think you are reading too much into it, you're guessing at what might be the motivation behind the question, or what the next question might be rather than just reading what is written in black and white in front of you.

 

[Taylortwocities]

@Dumkopf
As well as the lighting question, are you aware that, when you make your house 3-storey, you will need to install interlinked smoke alarms on all storeys of the house?
I guess you have a building notice for this work? You need to make sure this sort of thing is covered, or your friendly Building Control operative will be less than friendly.

 

[DefyG]

How on earth did you get that from the OP's question?

As I said we all have our own interpretations of an Op's question!
Perhaps I should have said NO its not a requirement of Part P
BUT
If you (Dumkopf) go for the new circuit option, notification under Part P is required!

 

[Dumkopf]

@Dumkopf
As well as the lighting question, are you aware that, when you make your house 3-storey, you will need to install interlinked smoke alarms on all storeys of the house?
I guess you have a building notice for this work? You need to make sure this sort of thing is covered, or your friendly Building Control operative will be less than friendly.

Hello All, I'm very grateful to you for your attention.
Apologies if my question was unclear. I think that telectrix interpreted it correctly. I know that the new circuit is notifiable. I just didn't know if it required to be on a separate fuse for Part P compliance.
Yes, I did know that the smoke alarms must be interlinked, but thanks anyway.

 

[Dustydazzler]

Part Pee doesn't require you to do anything

Its up to you what you install , Part Pee only comes into play if you add new wiring and don't have it signed off

There are several ways to achieve this

Use a Part Pee domestic sparks
Use a Part Pee 3rd party
Pay the BC to do your Part Pee

Only applies if you need new wiring , if you just modify the existing then non of the above matters

 

[Dumkopf]

Part Pee doesn't require you to do anything

Its up to you what you install , Part Pee only comes into play if you add new wiring and don't have it signed off

There are several ways to achieve this

Use a Part Pee domestic sparks
Use a Part Pee 3rd party
Pay the BC to do your Part Pee

Only applies if you need new wiring , if you just modify the existing then non of the above matters

I can now see why you were confused by my question; if I'd used the word "wiring" instead of "circuit" I'm sure it would have been clearer. Thanks again for all your advice.

 

[Taylortwocities]

Part Pee doesn't require you to do anything

Wrong.
Part P applies to all electrical work.
The legislation says this

and you’d want all of the electrical work to comply with that!
the APPROVED DOCUMENT, however, is guide (not law) on how one can comply with the Statute.
the APPROVED DOCUMENT basically recommends that a way is that you comply with wiring regulations (BS7671). It also details certain works that the Local Authorities would like to know about (notify).
And there’s a load of fluff about how that works.

 

[Dustydazzler]

Wrong.
Part P applies to all electrical work.
The legislation says this
View attachment 54913
and you’d want all of the electrical work to comply with that!
the APPROVED DOCUMENT, however, is guide (not law) on how one can comply with the Statute.
the APPROVED DOCUMENT basically recommends that a way is that you comply with wiring regulations (BS7671). It also details certain works that the Local Authorities would like to know about (notify).
And there’s a load of fluff about how that works.

Yes but it doesn't tell you how to install (new or modify) and tell you how to do to comply

There are various ways to wire any extension and various way to comply (if req)

 

[Taylortwocities]

If the work complies with BS7671 then it will pass muster.
BS7671 doesn’t tell you the practical side if anything. It tells you the “rules” you follow to achieve the end result.