Pir lighting

[oneofthedamned]

Evening lads, just a quick one. I have been asked to fit some outside lights, Four to be exact. I was going to put a new circuit on the rcd side of the CU. All lights are to be PIR switched, do they need to be individually isolated or is it ok just to wire them all together and isolate with the breaker?

Had a flick through 559 but can,t see any reference to switching requirments.

Thanks in advance.

 

[SPECIAL LOCATION]

Can't see a problem myself...

as Table 53.2 page 117 says a circuit breaker OR an RCD is acceptable for

Isolation, Emergency switching and Functional switching.

Providing you have the breaker suitably marked / labelled / identified to avoid any confusion as to its purpose.

 

[oneofthedamned]

Thanks very much for that Special. I could see nothing in the regs that said I needed them and the customer doesn't want any chopping out in the bungalow.

 

[Andy™]

Evening lads, just a quick one. I have been asked to fit some outside lights, Four to be exact. I was going to put a new circuit on the rcd side of the CU. All lights are to be PIR switched, do they need to be individually isolated or is it ok just to wire them all together and isolate with the breaker?Had a flick through 559 but can,t see any reference to switching requirments.

Thanks in advance.

look at it another way.... do you provide an isolator to each light you install in a house.... and do you provide an isolator for that... and do you...

 

[batty]

I would put a double pole switch somewhere because if you do have a fault on lighting it will trip Rcd but thats only my thought.

Batty

 

[SPECIAL LOCATION]

I would put a double pole switch somewhere because if you do have a fault on lighting it will trip Rcd but thats only my thought.Batty

Very true Batty,

Personally thats what I would do as well... even if its sitting next to the CU

and I generally find it easier to put a label on a single gang switch plate rather than an MCB / RCBO slot at a CU.

But you don't have to to meet the regs.

Its just an "avoid potential later inconvenience" type measure,

in the event of a neutral - Earth fault on the PIR / outside lights!