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13A EV socket

lyledunn
TNCS system in local development. Second hand BMW 330E Hybrid with ICCB that appears to restrict charging to 6A. Owner wants 13A socket on outside wall of house. 

The area is near the Mourne mountains where an Ra of 200 ohms would be difficult to achieve with a single rod. In any event the driveway has just be nicely finished. It would be a simple matter of drilling through the back of the meter cupboard to provide  the 13A socket but it is the loss of neutral protection that is the problem. Anyone know if loss of neutral protection is available as a separate item?
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    lyledunn:
    gkenyon:

    Yes, there are options.


    One manufacturer has a single-phase device that aligns with 722.411.4.1 (iii).


    There are a number of other manufacturers producing devices to achieve 722.411.4.1 (iv).

     


    Thank you Graham. 722.411.4.1(iii) requires a measurement electrode so that is out for this single-phase installation.



    The measurement earth electrode may not need to have a low resistance, it's only measuring voltage, not carrying any amount of current. I know of at least one of these devices has in-built checking of the effectiveness of the earth electrode, but you'd have to check with the manufacturer regarding their recommendations for resistance.

     
    I assume that manufacturers of devices complying with (iv) will only have a mode 3 socket so the IC-CPD supplied by BMW which has a 1363 plug will be of limited use.

    By the way, this is a company car. The company is a blue-chip and is keeping a very tight eye on petrol consumption of the PHEV company vehicles used by their sales staff. The lady tells me that her colleagues in England had 13A socket outlets fitted outside without any special provisions. The company paid some of the cost! 

     




    There are stand-alone devices available for installation upstream of the socket-outlet, so these could be used for a charging outlet to support Mode 1 / Mode 2. You should check with the manufacturer regarding the lower voltage threshold, whether the device may be installed close to the consumer unit, or immediately before the socket-outlet (e.g. set to 207 V, would be at the socket-outlet, set at 216.2 V would be upstream of that, e.g. at the consumer unit or close to the origin).


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  • 0
    lyledunn:
    gkenyon:

    Yes, there are options.


    One manufacturer has a single-phase device that aligns with 722.411.4.1 (iii).


    There are a number of other manufacturers producing devices to achieve 722.411.4.1 (iv).

     


    Thank you Graham. 722.411.4.1(iii) requires a measurement electrode so that is out for this single-phase installation.



    The measurement earth electrode may not need to have a low resistance, it's only measuring voltage, not carrying any amount of current. I know of at least one of these devices has in-built checking of the effectiveness of the earth electrode, but you'd have to check with the manufacturer regarding their recommendations for resistance.

     
    I assume that manufacturers of devices complying with (iv) will only have a mode 3 socket so the IC-CPD supplied by BMW which has a 1363 plug will be of limited use.

    By the way, this is a company car. The company is a blue-chip and is keeping a very tight eye on petrol consumption of the PHEV company vehicles used by their sales staff. The lady tells me that her colleagues in England had 13A socket outlets fitted outside without any special provisions. The company paid some of the cost! 

     




    There are stand-alone devices available for installation upstream of the socket-outlet, so these could be used for a charging outlet to support Mode 1 / Mode 2. You should check with the manufacturer regarding the lower voltage threshold, whether the device may be installed close to the consumer unit, or immediately before the socket-outlet (e.g. set to 207 V, would be at the socket-outlet, set at 216.2 V would be upstream of that, e.g. at the consumer unit or close to the origin).


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