What to consider when IR/Continuity testing kitchen ring with grid switch?

[Flakey]

Im going to do a dead test an installation that has a kitchen ring with 5 different loads on a grid switch. If possible i would like advice with regards to my approach to testing this circuit. What i would do is as follows for continuity:
1) End to end L-L, N-N, Cpc-Cpc,
2 Cross connect Incoming L- outgoing Cpc, than test at each socket for the sake of any bridges or rings within ring as well as documenting R1 + R2 of the ring. Now the loads off the grid switch i.e the cables should be tested to make sure of correct polarity as well as cables are connected securely and are in good order too. Should any readings with regards to these (spur type loads off of the grid switch be recorded?) or just noted.
I know to leave the switches on when carrying out the IR test and will initially soft test at 250v as there are neons which are known to affect test results, if all is ok i will join L-N and test to earth at 500v.

Is there anything that i may have missed or any advice that may simplify but appropriately help with regards to my approach, or is there anything i have missed out?.

Sorry if this sounds like basic stuff i just need clarification with regards to this test as never had to test with grid switch situation.
many thanks

Greeny!!!

 

[Octopus]

Are you a sparky or DIYer?

 

[Flakey]

Are you a sparky or DIYer?

Sparks, just got back into site work was doing maintenance for the last 3 years so have got a bit rusty with testing. while doing testing with my last company was doing mainly end of line type tests and standard ring tests. I know the question should be obvious for someone with experience and i very much understand that it may be dumb to ask such questions if i have any experience. Im just trying to recap myself in this one area which seems to be making me think, maybe too much. I know each load is effectively a spur off the ring, but im more asking the quuestion for R1 R2 reading of the ring and what connection points to include!!

7 Years previous experience!!!


Cheers

 

[Richard Burns]

Just do end to ends
Crossover line neutral all sockets on ring including grid loads
Crossover line cpc all sockets of ring including grid loads.

You will get higher readings if the grid loads are spurs but this is expected and it is likely that the longest run from the grid switch will be the highest R1+R2, that you would record as the max R1+R2.

IR tests with neons and the switches on will mean you will have Line Neutral at about 0.2-0.5MΩ but testing to earth should be OK.

 

[Deleted member 26818]

Is this for initial verification, or a condition report?

 

[Flakey]

Is this for initial verification, or a condition report?

Initial Verification.

 

[Farmelectrics]

have a good read of gn3