As an expert in the charging pile industry, EVDANCE has rich experience in the development and manufacturing of intelligent EV charging solutions. This is where we turn our engineering insights into knowledge and share them with the global EV community.
A Type A RCD detects AC and pulsating DC faults but not smooth DC. It is enough for EV charging only with the charger’s stated DC detection — here is the test.
Open PEN protection watches the supply for a broken PEN conductor and disconnects the charger if one is detected. Here is how it works and where it sits.
TN-C-S takes its earth from the network on a combined PEN conductor; TT makes its own earth at the premises. The difference decides the charger’s design questions.
There is no cable size to quote for a 22 kW charger: the size is the output of your installer’s calculation. These are the inputs — and why two quotes differ.
An 11 kW three-phase charger draws 16 A per phase, but no chart can size its cable — that is your installer’s calculation. Here is what it turns on.
Twenty metres does not come with a cable size attached. Distance is one input to the electrician’s calculation — here is how it moves the answer.
A 63 amp supply is a rating for your whole service, not a charger circuit. Whether you need that class of supply comes from a load assessment.
You cannot tell from the sockets. The reliable evidence is your bill, the meter’s labels and your network operator’s record — here is the ladder.
A 22 kW rating is a three-phase rating. On single phase, the written spec decides — most homes need a single-phase-rated unit or a supply upgrade.
A main fuse upgrade is the network operator fitting a higher-rated cut-out fuse, so the whole home can draw more at once. Only the DNO does this work.
