earth leakage

[Charlie_]

RCBOs with functional earths?

 

[static zap]

.......... ac to test we will be measuring impedance and not resistance as in a dc IR text

Wot I need power factor in my clamp meter ?

 

[Charlie_]

Wot I need power factor in my clamp meter ?

Not sure what you mean?

So if using an EL clamp to calculate IR you would be calculating the impedance as the insulation has a capacitive reactance..
We use dc voltage to measure just the resistance and the capacitive component is ignored.

 

[static zap]

So if using an EL clamp to calculate IR you would be calculating the impedance as the insulation has a capacitive reactance..

Insulation impedance (including capacitive reactance that could raise current ,but not power consumption... Hence appearing a little lower Z than actual R.
Was hoping for some amazing science ,(but with only the current -It cannot know the phase of the voltage to {filter-out} capacitive part of current )
Not to matter.

 

[cliffed]

My reckoning ,0.046 M ohms.