In the UK where some supplies to rural property are converted to PME / MEN from TT Earthing system concerns have been expressed that the lower conductor alone may be broken, ( by high vehicle or falling tree for example ) but with the upper phase conductors intact.
12.
The vehicle is connected to the power grid through standard socket-outlets present in residences, which depending on the country are usually rated at around 10 A . To use mode 1, the electrical installation must comply with the safety regulations and must have an earthing system, a circuit breaker to protect against overload and an earth leakage protection.
