Crossover continuity ring main test

[Richard3009]

To obtain the readings R1+RN/4 and R1+R2/4
at each socket outlet, when the crossover connections have been made at the CU.

If using a modern all in one tester like an MFT1552, is this test swift using a 3 pin plug or are you having to use probes to select the particular pins at every socket.

 

[pevvers]

As far as I'm aware with the Megger, all you'll be able to test is the line-earth (R1+R2) reading, as these are connections available for live tests on the 3 pin socket. I know there is some sort of neutral connection in there, but not sure whether you'll be able to test continuity. If you want to go by the plug in method, you can actually get Socket and See plug tops that have the required connections so you can just plug your 3 lead set into them.

One thing I have found when testing using the normal plug lead with the Megger, is that on some sockets one side has a significantly higher reading when on the 200mA test, which may throw a new person off if they're expecting all the sockets to be around the same value. It certainly confused me for a bit!!

The link to the plug top I was talking about is here: -

Socket and See SS130 SS130. Buy online or call

 

[Richard3009]

Ayyyy thats a handy device cheers, where would we be without these forums.

 

[spike9692001]

To obtain the readings R1+RN/4 and R1+R2/4
at each socket outlet, when the crossover connections have been made at the CU.

If using a modern all in one tester like an MFT1552, is this test swift using a 3 pin plug or are you having to use probes to select the particular pins at every socket.

Whats wrong with just making up a plug top with flying leads and connectors i use this method works a treat cheers spike

 

[Mark2009]

To obtain the readings R1+RN/4 and R1+R2/4
at each socket outlet, when the crossover connections have been made at the CU.

If using a modern all in one tester like an MFT1552, is this test swift using a 3 pin plug or are you having to use probes to select the particular pins at every socket.

Hi i did a ring final circuit continuity steps from the fuse board end to end line conductor got reading neutral to neutral reading OL the meter i am using is a kewtech kt61

Thanks

Mark

 

[Bulmer]

This will do the trick. New test lead they've started selling. Can also use this with the extension lead converters.

Megger 6220-810 Mains lead - 1.2 M long, enables connection of test instrument to a BS1363 wall socket, used for continuity and earth loop impedance testing.. Buy online or call

 

[pevvers]

Hi i did a ring final circuit continuity steps from the fuse board end to end line conductor got reading neutral to neutral reading OL the meter i am using is a kewtech kt61

Thanks

Mark

Sounds to me like you have a open circuit on your neutral ring then!