20a DP switch for light

[Deleted member 26818]

Yes you must be.
I asked you where you would test Zs, and you have stated at the highest R1+R2 point.
What about at the point where you have conducted the work? How would you determine where the highest R1+R2 point is?
The MWC asks for earth continuity, IR, Zs and polarity, but you have stated that you would not do Zs?
Make your mind up, either you would conduct a Zs test at each point or you wouldn't.
Recently I was asked to install a light in someones porch.
Simple matter as the CU was on the other side of the wall from where the light was to be positioned.
Run a feed from the downstairs lighting MCB to the fitting and then a switched line from there to the 2 gang light switch in the hall which was replaced with a 3 gang switch.
Should I then go to their downstairs bath room at the rear of the house, and drop out all the down lighters out of the newly decorated ceiling to establish which has the highest R1+R2 and then test the Zs?
How would that establish that the wiring I had installed had earth continuity, correct polarity and acceptable Zs?

 

[Amp David]

Never once stated I wouldn't do a Zs test.

With your litle porch light you'd of tested R1 R2, and proved polarity. Your Zs would be taken fronm furthest point on the circuit, might be the porch might not.