Where is this link which I must have missed?
Kind Regards, John
http://www.farnell.com/datasheets/2813749.pdf was the data sheet I was looking at.
I have not done the EV installers course and at my age not likely to. And maybe we would be told more on the course? I do not understand why an electric vehicle is not Class II? I see no reason for even having the charger built into the car, we never did do that in the past, fork lifts, milk floats and even the 1970's Bedford the charging transformer and controller was not built into the vehicle.
But we have moved from between 24 to 72 volt to 600 volt, so there are some changes, I have three electric vehicles, a mobility scooter and two e-bikes which at 24, 36, and 48 volt. And all have the charger not built into the vehicle, the problem is defining an EV. What we are normally talking about with an EV is a vehicle which uses one or more of the 4 modes.
What I read is
Mode two describes the use of a power lead that plugs into a power point at one end and a vehicle charging plug on the other end. This lead also incorporates a box that is placed no more than 300mm from the 3 pin plug end.
This lead is somewhat glorified with the name ‘EVSE’ (Electric Vehicle Supply Equipment) – but it is really nothing more than a power lead with an automatic on/off function controlled by the car.
The on/off function is controlled within the box near the 3 pin plug end, and ensures that the lead is only live when the car is charging. The charger that converts the AC power to DC for battery charging and controls the charging process is built in the car.
As soon as the EV is fully charged, the car charger signals this to the control box which then disconnects power between the box and the car.
The EVSE control box is by regulation not allowed to be more than 300mm from the power point in order to minimise the permanently live section. This is the reason that mode 2 EVSEs come with a label to not use extension leads with them.
As mode two EVSEs are plugged into a power point, they limit the current to a level that most power points can deliver. They do this by telling the car to not charge at a greater rate than the pre-set limit in the control box. (Generally this is around 2.4kW (10A)).
Putting it simple I have no idea what is in the EVSE, I know what is needed to be safe, it needs to only connect line, neutral, and earth if the voltage is between 207 and 253 volt AC, it needs to detect and disconnect if the DC current exceeds 6 mA, and it needs to detect when the current in line and neutral vary by more than 30 mA. But which bits are in the lead and which bits are in the socket supply I don't know.
I would think anyone who buys an electric car will have a mode 3 charger and it will be installed by some one who has completed the course, so that does not really worry me, but I live 50 miles from old friends and family, so it would seem a good idea to have some thing set up so they can charge car when visiting, so this would likely be mode 1 or 2, and it would seem prudent to fit a 13 amp socket where it can be both used for lawn mover, strimmer etc, and charging a car, it would seem you can't buy the weather proof box for less than the weather proof box and socket, so likely would get one of these
and swap the socket for the metal socket with RCD I already have which is 10 mA type A. So cost around £10, so then I look at
this advert for a Masterplug Mode 2 Charger which costs £50 that's 5 times the price, OK it does have a type AC RCD, but nothing in the house is not protected by a type AC or better at 30 mA, even with a RCD socket still only £20 so it seems charging over double just to have that label "mode 2 EV charging point".
