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vehicle charger tripping house rcd

Fred
Hello. Installed a vehicle charger recently, domestic. Charger on its own consumer unit , fed via metre tails, with a type A RCD, with an earth rod. House is PME, with type A rcds in the consumer unit . Vehicle being charged is a Hybrid. When car is fully charged, it trips the RCD in the house consumer unit ???? Vehicle charger has a DC leakage device installed.  Cant work out why it would trip the house rcd. Anyone else had any similar problems ?

It doesn't trip when it starts charging, only when its fully charged ?

Thanks
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    Brilliant. Thanks for your help. I wasn't sure if the house rcd was slightly sensitive or the current from charger was tracking back down the earth spike, through the ground and onto the house oil pipes, then back to the met, or something like that. Will keep you posted.
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    Brilliant. Thanks for your help. I wasn't sure if the house rcd was slightly sensitive or the current from charger was tracking back down the earth spike, through the ground and onto the house oil pipes, then back to the met, or something like that. Will keep you posted.
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