Questions regarding polarity and continuity for a light circuit.

[nazoom]

I am trying to find out where on the light switch or the celling rose of a light is the test for continuity and polarity are carried out? If continuity is carried out for a light circuit then where the probes connect to? is it on the switch line and the cpc at the ceiling rose or the brown connection and the cpc at the light switch?


Also for polarity test where is the test carried out at the ceiling rose or the light switch? If on the light ceiling rose then where do the probes connect? is it on the Cpc and the switch life connection? Or if it is carried out at the light switch then where does the probes connect to?

Many thanks.

 

[malcolmsanford]

If you have the OSG then look on page 91 and the test for R1+R2

 

[trev]

Do your R1+R2 test then you have both tests in one.

 

[trev]

Dammit Mal you obviously type faster than me

 

[nazoom]

What i am trying to find out is where in continuity R1+R2 the probes connect in the ceiling rose and in the switch for lighting circuit? Is it the switch line and the cpc?

Then for polarity also where does the probes connect to in the ceiling rose and the light switch? Is it the switch line and the cpc?

I have the OSG but i saw a few continuity movies and I am a bit unsure now.

Please help.

Thanks

 

[malcolmsanford]

nazoom page 91 tells you the exactly what your looking for mate and fig 10.3 shows you.

 

[trev]

It spells it out in the OSG mate. Have a think and you'll figure it out.
Think about it, you have to prove the continuity of the cpc all the way through the circuit now how are you going to do that?
As I said earlier, your (R1+R2) test does both tests in one

 

[Deleted member 26818]

Connect your leads to conduct a Zs test at the fitting.
With the switch off, you should be unable to conduct the test, and your meter should indicate no voltage between L&N.
Then switch on, and conduct the test.