Ceeform 32A OCPD rating?

Colin Haggett: 
 

vantech: 
 

Colin Haggett: 
 

Is there a reason for not using a Mode 3 charger? 

Client has purchased one of these with a Ceeform 32A plug. 

Could be a lot of hassle for you depending on location and earthing arrangements. As to protective device 32amp 

Indeed.

Earthing is an interesting subject as many EV users have 13amp jobbies which they plug into their 4 gang extension leads without a thought! These don’t take earthing arrangements into account. 

You just have follow the Code of Practice 4th edition 

This charger with the Ceeform plug is not actually suitable for use at a domestic property is it?

broadgage: 
 

In the USA, the electrical code restricts long term loading of circuits to 80% of the nominal capacity, or put another way requires a circuit capacity of 125% of the design load.

So in the USA, a similar vehicle charger would need a 38 amp circuit, or rounded up to the nearest standard size, a 40 amp circuit.

Or alternatively a 32 amp circuit loaded to only 25.6 amps.

There is no such requirement in the UK.

Except where 536.4.202 leads to the requirement. The actual rating of an OCPD may also be dependent on the ambient temperature, and under some service conditions we'd consider “normal” may actually be 80 % of the standard nominal rating …

Sparkingchip: 
 

This charger with the Ceeform plug is not actually suitable for use at a domestic property is it?

Why not? This is how they are marketed by the manufacturer. 

If it’s a domestic installation note the 32 amp socket as a deviation on the installation certificate and install an interlocking version to reduce the risks.

vantech: 
 

Sparkingchip: 
 

This charger with the Ceeform plug is not actually suitable for use at a domestic property is it?

Why not? This is how they are marketed by the manufacturer. 

Regulation 553.1.201 - shuttered outlets are required. BS EN 60309-2 outlets are not shuttered.

Just because a manufacturer markets something in a particular way, does not mean it can be installed in accordance with BS 7671.

broadgage: 
 

In the USA, the electrical code restricts long term loading of circuits to 80% of the nominal capacity, or put another way requires a circuit capacity of 125% of the design load.

My understanding is this is because US MCBs are rated by tripping current not holding current. So a US 30 A MCB will actually trip at 30 A (eventually) whereas a European 32 A must hold at 1.1x

gkenyon: 
 

vantech: 
 

Sparkingchip: 
 

This charger with the Ceeform plug is not actually suitable for use at a domestic property is it?

Why not? This is how they are marketed by the manufacturer. 

Regulation 553.1.201 - shuttered outlets are required. BS EN 60309-2 outlets are not shuttered.

Just because a manufacturer markets something in a particular way, does not mean it can be installed in accordance with BS 7671.

What about a type with an interlocking switch that prevents energisation until the socket is plugged in? This then overcomes that issue. 

vantech: 
 

What about a type with an interlocking switch that prevents energisation until the socket is plugged in? This then overcomes that issue. 

It does not, strictly, meet the BS 7671 requirement.

The designer or installer may be able to certify an “intended departure” for that requirement (in writing via the MWC or EIC) but the designer or installer will take responsibility for it being “no less safe”.