wiring confirmation

[juco]

Could someone confirm this wiring to be correct (or otherwise)
It is for a mains fed LED floodlamp with separate PIR.

I am not sure how to get an image on here but hopefully at the link below:

http://www.diynot.com/network/juco/albums/

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[mikeyd]

View media item 90621
Is there an "earth" in the cable to the PIR?

 

[juco]

No earth on the PIR, only on the floodlamp.

 

[Taylortwocities]

There may not be an earth on the PIR, but you must have an earth in the CABLE.
You need to use 3 core and earth cable to the PIR. You must not use the earth conductor as a live.

 

[ban-all-sheds]

I am not sure how to get an image on here but hopefully at the link below:

If you want to use the site's own photo library provision you'll find the instructions here: http://www.diynot.com/network/DIYnot/albums/67/180

To get photo(s) to appear in your post you need to do all 11 steps.

Or, for future reference, in a fraction of the time it takes to go through that convoluted process you could use an image hosting site such as http://www.postimage.org

No earth on the PIR, only on the floodlamp.

You hope.

If it's one of those cheapo Chinese bits of tat of Amazon or eBay it might not have the earth connected up inside, so don't ever touch it when the power is on. And make sure you can easily replace it when it goes wrong.

Also there's no 2-pole isolation switch shown - you'll wish you had one when one of the items lets water in and the circuit is RCD protected.

What are A, N & L on the PIR? Where are those conductors supposed to go or come from?

 

[juco]

"What are A, N & L on the PIR? Where are those conductors supposed to go or come from?"
A=switched live, n= neutral, l=Live.

Earth screwed to flood casing which is the righthand image.

 

[john4703]

It looks as if there should be a cable clamp on the PIR casing? Is there?
I don't like the earth wire loose like that, a risk that it could move and touch another wire.

 

[juco]

Yes there is, I am just testing this indoors at the moment to see all will work ok before I get to install outdoors. I just want to make sure I have the layout correct and then I need to order some cabling and whatever else I need.

 

[mikeyd]

It looks like you understand the theory. Before you take it all outside though, could you answer the following as we might be able to give further advice.

What sort of cable are you intending to use?
Where will it be fed from? Your diagram just shows 'mains feed'

 

[juco]

Thanks mikeyd, I wasnt quite sure what wire would be best I do have some 2-core & earth 6242H 1.5mm but dont think that would be suitable so looking more at a 3 core and using sleeve or tape to mark the live feed.
Advice on cable would be good.

My intention is to feed this from a 5amp socket (by way of a plug) that has a wall switch to turn on/off, the socket is not used as it is basically for table lamps to be used from a wall switch. The flood is only 10W LED.

The flood will be used for one side of a detached property thats rarely used so not likely to be switched on most of the time apart from when we go on hols.

 

[bernardgreen]

The 10 watt LED may ( depending on the driver in the lamp ) glow dimly if the Switched Live conductor from the PIR and the permanent Live to the PIR run side by side in the same cable for more than a few metres.

This is the result of the stray capacitive coupling between adjacent conductors passing a small amount of current to the Switched Live when the lamp is supposed to be OFF.

It can be avoided by taking Live, Neutral and Earth to the PIR in twin and earth and then taking Switched Live, Neutral and Earth from the PIR to the lamp in another run of twin and earth.

You could replace the three way block in the PIR with a 4 way to provide a secure terminal for the Earths.

 

[juco]

The cable run from the PIR to the mains connection is just a tad over 2 metres.

 

[PrenticeBoyofDerry]

As you are using 10w LED, have you checked the PIR has a suitable low load capacity? or you may have functionality problems.

 

[juco]

PIRs were advertised as suitable for LEDs. I have tested indoor and all works ok.