oh no!

[buddha]

hi everyone,ive just had horrible thought,ive just wired for two outside lights,they are quite trendy looking and have pir's built into them,spent most of the morning chasing for cables ,wiring then lovingly filling the chases,I cabled it in flat twin and earth 1.5mm,then had horrible thought,should I have done this in 3core and earth!!!! I havent recieved the lights yet,but im hoping t&e will be enough/correct seeing as the pir is built in.

any thoughts?

 

[ProDave]

Twin and earth is fine for a PIR light.

Provide power to it, when you want it active, turn the power off when you don't

I would always cable a PIR light in 3 core and earth, that will enable you to add an override switch should you want to, that can turn the light on even when the PIR sensor is not activated. But if you don't want that function, the 2 core is fine.

P.S I assume the double post is because the forum was playing up earlier and not responding?

 

[batty]

Just do what others do and use CPC as switched live or neutral.

:slap

 

[Evans Electric]

You mean like BG do with their room stats?

 

[batty]

How long have British General been making room stats?

 

[buddha]

Twin and earth is fine for a PIR light.Provide power to it, when you want it active, turn the power off when you don't

I would always cable a PIR light in 3 core and earth, that will enable you to add an override switch should you want to, that can turn the light on even when the PIR sensor is not activated. But if you don't want that function, the 2 core is fine.

P.S I assume the double post is because the forum was playing up earlier and not responding?

Thanks mate,yeah had trouble with the forum last,thought it was my computer,do most of these lights have a sensor so that they dont turn on during daylight hours??

 

[Doc Hudson]

There will normally be at least two adjustable timers on the PIR, one for the duration of the light, the other for LUX level, how dark you want it to be before the light will start operating. You can normally adjust them for daylight operation, for while you are testing and setting them up.

Doc H.

 

[Technician]

I am surprised at using a CPC as a switched live; I assume that it has

to be sleeved brown.

 

[Doc Hudson]

I am surprised at using a CPC as a switched live; I assume that it hasto be sleeved brown.

That was a joke. A bare CPC should never be used as a live conductor as it is not insulated along its length and I believe a green/yellow conductor also should not be over sleeved with another colour.

Doc H.

 

[buddha]

thanks all,and good to see the forum working properly again

---------- Post Auto-Merged at 15:44 ---------- Previous post was made at 15:42 ----------

how do I get a picture avatar thing next to my name?

 

[Zeespark]

Its all done through your profile on here buddha.

AndyGuinness

 

[Technician]

That is how I saw it Doc: I found a bathroom fan wired like that

and I took the lot out and re-wired it.

 

[Andy™]

I am surprised at using a CPC as a switched live; I assume that it hasto be sleeved brown.

a CPC should never be used for any other purpose, even if it is sleeved

 

[buddha]

cheers guys your a god send

 

[Doc Hudson]

That was a joke. A bare CPC should never be used as a live conductor as it is not insulated along its length and I believe a green/yellow conductor also should not be over sleeved with another colour.Doc H.

I am surprised at using a CPC as a switched live; I assume that it hasto be sleeved brown.

Just do what others do and use CPC as switched live or neutral. :slap

[quote name='Andy

 

[a1]

how do I get a picture avatar thing next to my name?

http://www.talk.electricianforum.co.uk/profile.php?do=editavatar

 

[ProDave]

But our student members should not get confused thinking that bare conductors can never be used as live conductors. Overhead lines and crane track bus-bar systems being two examples.

But that's somewhat different to what anyone will find in a domestic install.

They are protected by "placing out of reach" (or whatever the current phrase is to describe that).

Mind, I don't know how they still get away with a live rail on the underground system.

 

[Sidewinder]

It is on the permanent way, thus it is placed out of reach as it is a criminal offence to trespass on the Pway.

 

[Phoenix]

Heres one for you.... three core flex to a PIR, green/yellow oversleeved as brown and used as switched live, what code would *you* give it on a periodic (and what reg would you use to back it up?)

Bare with me on this one, it is going somewhere... *honest* LOL