I think that a new fitting should be infinity Lyle, whatever that is on your meter. There is no reason at all why this should not be the case, and although the usual megohm would not be dangerous, why would it be that low. Also with several of these fittings the circuit would also immediately be unsatisfactory.
Exactly David! The requirement to carry out an insulation resistance test prior to the connection of equipment will require careful planning on site. A further test between live conductors and earth is required following the connection of the equipment. This test, whilst perhaps conducted at 250v still requires a minimum of 1Mohm. As I understand it, the standard for luminaires allows a fitting to be placed on the market at a minimum of 1Mohm so with two such luminaires connected we are beat! I doubt it will matter much as the IR column is magically populated with +999Mohms no matter what!
Exactly David! The requirement to carry out an insulation resistance test prior to the connection of equipment will require careful planning on site. A further test between live conductors and earth is required following the connection of the equipment. This test, whilst perhaps conducted at 250v still requires a minimum of 1Mohm. As I understand it, the standard for luminaires allows a fitting to be placed on the market at a minimum of 1Mohm so with two such luminaires connected we are beat! I doubt it will matter much as the IR column is magically populated with +999Mohms no matter what!
