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Discuss EICR Code for no main earth in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

Induced voltages of up to 85?! Really?

Capacitively coupled phantom voltage maybe, but not induced.
 
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Another way of looking at it...is that it is a very high impedance voltage source.
So the reading depends on the input impedance of the test voltmeter.
Also, why it it doesn't present a shock hazard.
 
C2 and absolutely go to town on it in the Summary and Observations. If it were me, I think I'd do some sort of covering letter or note to the person ordering the report.
 
You can't induce meaningful voltages into a conductor without a large number of turns in a coil and a fast rate of change in magnetic flux. Capacative coupling is the most common form of phantom voltages in conductors and they can be picked up using high impedance digital multimeters. A low impedance analogue multimeter will confirm the presence of a phantom voltage as they will not register a result.

Capacative coupling works in the same way a capacitor works, with the insulation between conductors acting as a dialectric.

A phantom voltage picked up by a digital multimeter is harmless.
 
Capacative coupling is the most common form of phantom voltages in conductors and they can be picked up using high impedance digital multimeters. A low impedance analogue multimeter will confirm the presence of a phantom voltage as they will not register a result.

Or a suitable highish-but-not-too-high load added between your digital meter probes achieves the same effect, i.e. a load path causing the capacitance to discharge and the phantom voltage to collapse. Someone said Fluke used to sell one.
 
Throw this out there what code would you put down on a EICR report where "There is no Main Earth to the installation??
is this some sort of homework?

caus if it aint...and your coming in here to ask what is really an open & shut scenario...like what code to be alotting this...then do you really think you should be carrying out ECRs?
 

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