Does a three-pin socket used for Electrical Vehicle charging need a earth electrode or open PEN fault detection device?

[brianmoooore]

Add in Rolec's EVWP0020 to add a bit more confusion to the mix.

 

[timhoward]

Add in Rolec's EVWP0020 to add a bit more confusion to the mix.

Isn't that one just a glorified socket and RCBO?
I think that's an easy one, definitely an EV charging point, no built in OpenPen protection as far as I can see, so options are
1 - TT it
2 - PME + extra earthing as per indent ii) to achieve 70v touch voltage
3 - PME, and add separate upstream OpenPen protection to comply with indent iv)

(or just use a decent charging point in the first place!)

 

[brianmoooore]

It is exactly that. A 13A socket fed by a 10 RCBO, but they're marketed as entry level EV charge points.
Should be genuine TNS added to the list above.

 

[timhoward]

Should be genuine TNS added to the list above.

Agreed - I seem to recall you saying you can actually see yours in genuine, which is a lovely luxury...

My conclusion for now is that as @Julie points out it's really undesirable to be regularly charging an EV with a 13A socket in the first place, so the confusion (at least on my part) on how the regs apply to the worst way to charge an EV is pretty academic.

 

[johnwicklover]

Agreed - I seem to recall you saying you can actually see yours in genuine, which is a lovely luxury...

My conclusion for now is that as @Julie points out it's really undesirable to be regularly charging an EV with a 13A socket in the first place, so the confusion (at least on my part) on how the regs apply to the worst way to charge an EV is pretty academic.

Yes, it is but there are little buggies which charge from standard socket. Hopefully, they phase out the socket chargers and standardise the type 2. They are mainly for carrying stuff in short distances but still classed as an EV.

 

[pc1966]

It is slightly bizarre as the risk from a EV charger relating to use with a PEN is nothing to do with the charging, it is the big lump of metal on the CPC that someone might be washing outside. Dedicated high-rate charger or 13A plug I'm not sure there is a difference here.

But...is there? Do cars charging from a 13A/16A outlets actually use double-insulated (class II) systems so the PEN-connected-CPC is irrelevant?

 

[Julie.]

It is slightly bizarre as the risk from a EV charger relating to use with a PEN is nothing to do with the charging, it is the big lump of metal on the CPC that someone might be washing outside. Dedicated high-rate charger or 13A plug I'm not sure there is a difference here.

But...is there? Do cars charging from a 13A/16A outlets actually use double-insulated (class II) systems so the PEN-connected-CPC is irrelevant?

I don't think so, they provide 230v to the car itself, so there is no guarantee that is class ii

 

[Gavin John Hyde]

No, as far as the regs are concerned it's just a standard outlet (requiring rcd etc).

However I think 'granny chargers' should be prohibited as they don't properly provide the protection normally afforded by a normal charge point, and they run at 100% load permanently - not really the sort of load expected on a 13A socket outlet.

So it would be good practice to add it, but the danger is the outlet may be used for 'normal' loads which would be better on tcns

Agree with Julie. Worth pointing out that i see a lot of burned out sockets as they just cant handle a prolonged load for several hours