EICR Code for no main earth

[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?

 

[GLENNSPARK]

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

dangerous under fault conditions.

 

[GLENNSPARK]

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.

and if it was a private borehole?

 

[GLENNSPARK]

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.

make notes as required....nothing more...nothing less..

 

[GLENNSPARK]

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

main earthing

 

[GLENNSPARK]

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.

what do you think the observations box is for Nick?

 

[GLENNSPARK]

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...

well

you can rest assured that this is turd...

its a 2...not an NIC No.2...

 

[NickD]

what do you think the observations box is for Nick?

I think it's for being buried in a long, detailed form full of small print, numbers and technical detail which will have made the average non-technical reader think it's indecipherable and not meant to be read by them and give up somewhere around the top of page 2.

 

[davesparks]

That's why you go through the report with them and explain it to them isn't it?

 

[NickD]

That's why you go through the report with them and explain it to them isn't it?

Often they're wary and think you're just looking for work. A missing earth conductor I would want them to know I'm not messing. GN3 p.108 para.8 says an unrectified C1 should be notified urgently in writing; in the same vein I'd consider taking the personal decision to extend that to an extremely serious C2. Nothing says I can't, and it is difficult to prove a conversation took place. Something awful could easily happen with a missing earth conductor. It might be useful to be able to demonstrate later you took every reasonable step to draw their attention to the seriousness of the potential danger. Courts don't look favourably on important stuff buried in detail. I'm just risk averse; I can see why I'd do it. If you can't see why you'd do it, don't.

 

[GLENNSPARK]

Often they're wary and think you're just looking for work. A missing earth conductor I would want them to know I'm not messing. GN3 p.108 para.8 says an unrectified C1 should be notified urgently in writing; in the same vein I'd consider taking the personal decision to extend that to an extremely serious C2. Nothing says I can't, and it is difficult to prove a conversation took place. Something awful could easily happen with a missing earth conductor. It might be useful to be able to demonstrate later you took every reasonable step to draw their attention to the seriousness of the potential danger. Courts don't look favourably on important stuff buried in detail. I'm just risk averse; I can see why I'd do it. If you can't see why you'd do it, don't.

ever heard of a danger notice Nick?

clearly not...