The electrical system in a caravan should be checked regularly. Because a caravan is constantly on the move it is possible for connections to come loose due to vibrations. If the van or camper trailer is a pre owned unit it should be inspected to ensure that sittings are of the type approved for caravan use.
All light switches and power points must be a ‘double pole’ type. Extension leads that connect the van to the outside supply must have a 15amp rating. These leads can be identified by an earth pin that is wider than the other two.
When fitting accessories like shelves or towel rails always consult a caravan repair specialist to prevent drilling into hidden electrical cables.