The main function of an RCD is to protect against small earth leakage currents which wouldn't necessarily cause a fuse or MCB to operate,they are designed to trip at a low enough current and fast enough to minimise the risk of electrocution.The problem with relying on the campsites RCD is that in order to reduce the inconvenience to other campers caused by a fault on anyone's equipment(there can be 3 hookups fed from the one RCD)the campsites RCD is often a slightly slower trip increasing the risk slightly,the sites RCD is there to protect the cable etc between their post and the campers RCD and the RCD on the end of the hookup is to protect against a fault on the individual's equipment
Saxo1
Something in the depths of my memory regarding multiple rcd's on a circuit is nagging me but I can't remember what it is but my brother seems to think it is something to do with different ratings. Anyone got any further info or ideas?
------------- 'A sure cure for sea-sickness is to sit under a tree'
You should get a 2 pin adapter from your local camping shop to plug in to the bollard end as not all sites over there have the normal connection. You could also make a reverse polarity bit but I won't go into that, search for reverse polarity you'll find loads!