2 k ohm between L+E on lighting circiut

[daiplayer]

Is this a fault ? shouldnt resistancebetween live and nuetral be greater than this at the board ? (lightind circiut) some spot bulbs in (230v)....

 

[brizospark]

You should have all bulbs removed before testing insulation resistance on a lighting circuit and ensure any fluo lights are disconnected

 

[Jimmy Boy]

Or use Method 2 as set out in GN3 if you can't disconnect

 

[james king]

What test r u doing? L-n insulation resistance or r1+r2? K ohms on r1+r2 is a high reading may be a loose connection

 

[brizospark]

Refresh my memory to method 2

 

[james king]

think he means r2

 

[IQ Electrical]

think he means r2

Method 2 will be L+N connected together to Earth

 

[james king]

say that the op does this to his cct how would this reading make any diffrence for example if a bulb is still pluged in?

 

[IQ Electrical]

say that the op does this to his cct how would this reading make any diffrence for example if a bulb is still pluged in?

Because you don't physically pass a voltage between L+N -they remain at the same potential.

To the OP:

What is the earth system, are there any rcd's and have you got all cables for that circuit removed from the DB?

I'm concerned that you're asking if a reading of 0.002 MOhms is a fault!

 

[Jimmy Boy]

Thanks IQ I was beginning to to think I was the only one that read GN3..

 

[james king]

ahh i see cheers for tht IQ, the op said Kohms not Mohms am i correct in saying tht under 1Mohm is below the required reading by the bs7671

 

[IQ Electrical]

ahh i see cheers for tht IQ, the op said Kohms not Mohms am i correct in saying tht under 1Mohm is below the required reading by the bs7671

Yes, correct and if the OP is correct then he has a reading of 0.002 MOhms

 

[james king]

what im saying is tht the tester my boss uses is a megger mft 1553 and when testing IR it never says Kohms or i have never seen it. it only says eg 0.02Mohms or >299M ohms

when conducting R1+R2 when there is a loose connection ect the reading will be 2.3Kohms ???

 

[Jimmy Boy]

Have you set the parameters up on the meter you need low Ohms

 

[IQ Electrical]

Is this a fault ? shouldnt resistancebetween live and nuetral be greater than this at the board ? (lightind circiut) some spot bulbs in (230v)....

Look at what you've written....

If you're talking R1+R2 then why would you want a greater resistance when less is better?

Then, you're on about testing on the MOhm scale of an insulation resistance tester, I've done all I can here!