Continuity resistance tsting problems

[kes123]

Hi all I am new to this and practising using a Megger 1553 tester. I Isolate the system connect the line to earth and my meter starts to test and then its like the circuit gets broken after a split second and no reading can be taken.
I have conected a long lead from the earth at consumer unit to the earth at the light fitting I am checking and it reads continuity. But method 1 just won't seem to work.

Any ideas

cheers

 

[SirKit Breaker]

Long lead method.
Connect lead at earth terminal in CU, and connect other end through your tester to any given earth terminal in the circuit, the highest reading you get is the R2 value for that circuit.
R1+R2 method.
Join Line to CPC in CU, take reading at any point on the circuit between L-CPC the highest value you get is the R1+R2 for the circuit. On a lighting circuit make sure the switch is ON or you will not get a reading at the lamp holder.

If your machine is going off after a few seconds then check the batteries, if all is well you are doing something wrong.

Cheers........Howard

 

[Electricalserv]

Please please do the R1+R2 method...so much simpler.

YouTube - Continuity of CPC

Watch this so simple......

 

[kes123]

hi thanks for the reply's I was just doing something really stupid. Testing the wrong circuit. Resolved now thanks

 

[telectrix]

we all make mistakes, as the hedgehog said, climbing off the bog brush.

 

[Des 56]

hi thanks for the reply's I was just doing something really stupid. Testing the wrong circuit. Resolved now thanks

Welcome to you

 

[Electricalserv]

I think the welly on his head finally slipped over his eyes.....