Electric Charging Point Certification

I would check those test results out. Ze 0.35. Zs 0.2. Yeah, righto. And I agree that the information is light. No RCD tests for example.

 

Maybe he got em the wrong way round

 

His measured Ze was 0.20 and max measured Zs was 0.23, what's wrong with that?

 

I agree there's a lot of info missing Dale but his figures seem to be ok.

 

Nowt, I was going on UPs reply, Then I looked at the certs myself

 

I was going by the Nature of Supply Parameters where Ze (External Earth Fault Loop Impedance) is listed as 0.35 ohms and underneath it says measured Ze = 0.20 ohms. I've put my glasses on now. He is using standard numbers. 16kA PFC. 0.35 ohms Ze. He should measure both and record both. No excuse on a simple circuit. If he measured Ze as 0.2 the PFC will be 1.15kA. Measured Zs is 0.23. R1+R2 is 0.03. So the circuit length for a 2.5mm2 T&E would be around 1.53m. Fair enough.

 

No UP, in that nature of supply parameters section it's correct to use the standard figures of 0.80 tns, 0.35 tncs, or 21 ohms TT.

 

Ok mate.

 

Hi Dale,
On a side note, did your brother have this outlet fitted as part of the new car deal? i.e organised by the car dealer? Wonder how much they charged for that?

 

I see he has put U as 230V and Uo left blank. Surely U should be left blank (as it is a single-phase installation) and Uo (nominal voltage to Earth) should have been 230V.

 

No UP, in that nature of supply parameters section it's correct to use the standard figures of 0.80 tns, 0.35 tncs, or 21 ohms TT.

For single phase both U and Uo go down as 230v.

 

Test results look fine, but the test sheet is not filled in correctly, would not want to be using that for a nic eic assessment, bit lazy maybe?

 

My point is Uo has been left blank.

But U cannot be 230V as it is the nominal voltage between phases, which clearly does not exist on a single-phase supply and therefore should be recorded as "N/A".

 

U is voltage between lines. The line voltage is 230V therefore it is correct. How many certs have you filled in with U=N/A then Risteard? Uo is nominal line voltage to earth, 230V again.

 

Thanks UP, I was beginning to doubt myself for a moment, although i'm sure that it would have been picked-up on one of my many annual nic assessments by now!

 

That's poor. If that certificate was one that the inspector flicked through when doing the annual inspection, they would be getting non-compliances on their annual report.

 

But you only have one line. If you had more than one line then the voltage between them would be 400V, not 230V. So it is not applicable.

 

You carry on mate. Everyone else fills in 230V. If you want to put n/a, then that's entirely up to you.