Insulation resistance to earth

[SimpleSimon]

Doing an IR test on some garden lights. There are too many lights to remove the bulbs (big garden) and am unable to locate every single one.
So did L/N connected together to earth and got 0.03.
Just to confirm. Doing this method will keep the conductors at the same potential and effectively by-pass any voltage sensitive equipment in the circuit. So a reading like this can only indicate a fault? Or is there something else I'm missing.

 

[mechelec]

is that 0.03 Mohms. if so then yes it indicates a low insulation resistance to earth and a fault, although some electronic equippment with filter circuits and or surge suppression can also give low readings.

 

[johnboy6083]

that to me would signify either a short, or water in the fittings. when sealingthe fittings back up, use a bit of vaselin on the seals. it stopes them getting brittle, and helps to seal them

 

[tony mc]

Garden light can be a pain with the ingress of moisture .

If you can I would try and split the cct and test again to see if you can narrow down the fault.

 

[SimpleSimon]

Moisture was my initial thought just always like to cover my back when fault finding.
Sometimes there's always someone who may have a wild theory/story.