This is probably a stupid question but here goes. I have an external water proof plug socket at home - standard 3 pin. I would like to use it to attach my electric lead so I can heat the van, top up battery, power freezer etc before going away. Can I attach my electric (EHU) lead to it. I have seen things that look like a 3pin plug on one end and then a caravan plug fitting on the other but am not sure if these are safe, apologies again if this is a really stupid question, many thanks
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