EICR Code for no main earth

[mamba]

Throw this out there what code would you put down on a EICR report where "There is no Main Earth to the installation??

 

[D Skelton]

C2 is the only code this situation warrants

 

[Silly Sausage]

Throw this out there what code would you put down on a EICR report where "There is no Main Earth to the installation??

If you mean the Main Earth Conductor? I found one missing on a Periodic once at a Pharmacy in Bradford, so I just fitted one and moved on. I was on wages at the time!

 

[mamba]

Yep I had day with field engineer as a QS and his words exactly only C2 however.... page 118 NICEIC Inspect and test says it is a C1 ??? contradiction again I ask my lord...

 

[spark 68]

Yep I had day with field engineer as a QS and his words exactly only C2 however.... page 118 NICEIC Inspect and test says it is a C1 ??? contradiction again I ask my lord...

It is not an immediate Danger, it would take a second fault (L to E) to become so, hence a C2 potentially dangerous, Niccy don't write the rules they just like to think they do.

 

[danzor]

Contradiction to what? We are trained to BS7671 not the NICEIC toilet paper

 

[telectrix]

i'd agree with a C2 as it would require a fault ( live part to exposed part ) to present a danger.

 

[Octopus]

was the installation relying on the water main as its earth?

 

[nickblake]

It all depends on the circumstances No main earth not a good one most situations it would be a C2 i have come across a similar situation where there was an induced voltage of 85 volts in that scenario i would give it a C1

 

[GT1]

Yep ditto the above. Quite often find induced voltages of that size.. Nowhere to go without the main bond..!

 

[D Skelton]

Induced voltages of up to 85?! Really?

Capacitively coupled phantom voltage maybe, but not induced.

 

[GT1]

haha. I'll bow to your superior knowledge of the physics and just agree. !

 

[Silly Sausage]

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.

 

[uksparks]

Yes C2 because C1 is for immediate dangers, where there is no earth it's only a C2 as its 'potentially dangerous'.

 

[NickD]

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.

 

[Eddiesparks]

Esc do a good best practice guide. This is, i think, an example of a definite C2. Also waterpipe used as ME is a c2 too.

 

[Megavolt]

Induced voltages of up to 85?! Really?

Capacitively coupled phantom voltage maybe, but not induced.

D Skelton could you explain that one to me so I can get my head round it please.

 

[D Skelton]

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.

 

[NickD]

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.

 

[GLENNSPARK]

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?