Hello Smiley , sorry to hear about your caravan , good luck with it . As regards the ehu cable you will require a 16 amp female to site plug adaptor cable ( a short length ) for the end that fixes to site power . For the end that you will use in the tent , you will need a 16 amp male to multi 13 amp socket block , again a short length . Both the items are available at any good caravan accessory stockist , or indeed online such as e bay etc . Please remember to keep all necessary electrical joints and sockets clear of dampwater . You should really have a RCD block at the outer end of your cable to protect your and others safety , again found at a good stockist for maybe £ 40 to £50 . The site power will probably be reduced to say 10 amps so becareful on loading which electric item you use . Steve .