The IET Wiring Regulations (722.55.101.0.201.1i) specify that 13A UK sockets which are installed to charge an EV must comply with BS 1363-2 and be marked ‘EV’ on the back of the plate. The marking on the back is required to demonstrate that it meets the more demanding British Standard, including a cyclical load test. To achieve the new standard, sockets are subject to more demanding tests than a standard outlet, to ensure that they can withstand the long term supply of the continuous 10A load of an EV charger.
To avoid two EVs being charged at the same time, double (2x socket outlets on a plate) EV rated sockets are not manufactured. This previously caused a practical issue, as it's far more common for indoor and outdoor socket to be a double/2 gang. Finally, this new socket overcomes the challenge, by providing a single EV rated socket with a double/2 gang plate.
Double Socket Plate
- Single EV rated socket on a double/2 gang sized plate, supplied on it's own, ready to install onto a suitable 2 gang back box (35mm min depth).
- Includes a key switch, which can be used to turn the power to the socket off, to prevent unauthorised charging. N.B. This is an emergency light style key, which is identical for all sockets, not a unique key.
- If required, the socket can be wired without including the switch in the circuit.
- Marked as compliant with BS 1363-2 on the back of the socket.
Weatherproof Socket + Double Socket Plate
- Single EV rated socket on a double/2 gang sized plate - all details as per section above.
- Enclosure is made from robust high impact UV stable construction. The plastic will not discolour, fade or crack and operates in extremes of temperatures.
- Easy-to-open latch, ensuring that the socket remains closed, even with the larger 2.5mmsq flex. Unlike other cheaper brands, the clips won't break off.
- Easy to install with multiple 20mm round entry positions on all four sides and single 20/25mm entry on the back.
- IP66 rated, which means that it provides complete protection to the ingress of dust, and will remain waterproof even when subject to powerful water jets from any angle.
- To guard against unauthorised access, the socket can be locked shut with a small padlock (5.5mm maximum diameter), available here.
Safety Precautions:
Please note that section 722 Electrical Vehicle Charging Installations of the IET Wiring Regulations details a number of additional requirements for socket outlets which are installed specifically to supply an EV. Additional requirements include the following, and for that reason should be left to an electrician:
- Dedicated final circuit with over-current protection (e.g. you can't use or spur off an existing ring circuit).
- 13A sockets must comply with BS 1363-2.
- Except where there is no possibility of confusion, a label shall be provided on the front face or adjacent to the socket-outlet or its enclosure stating: ‘Suitable for electric vehicle charging’.
- Protection from a Type B RCD.
- PEN protection device/detailed earthing requirements for certain types of supply (far too complicated to explain here!)