WHEN CHOOSING A ELETRIC HOOK-UP FOR CAMPING USE , ITS WISE TO PURCHASE THE TYPE WITH A BUILT IN RCD BREAKER , SOME I HAVE SEEN ARE LIKE HOME MADE EXTENSION LEADS WITH AN RCD BREAKER PLUGED IN TO THEM , BEWARE THAT MOST CAMPING SITES DO ON SITE INSPECTIONS CHECKS ON HOOK-UP LEADS AND DO NOT ALLOW HOME MADE LEADS TO BE PLUGGED INTO THERE MAINS , BECAUSE IF IT TRIPS THE MAINS BOX YOU COULD BE HELD RESPONSIBLE FOR ANY DAMAGE / CALL OUT CHARGE TO REPAIR THE MAINS. MOST PEOPLE THINK WHEN YOU HAVE A HOOK-UP YOU CAN RUN DOZENS OF ITEMS AT ONE TIME , WELL MOST SITE YOU ONLY GET 10 AMPS MAX . MOST PEOPLE USE STANDARD HOUSE HOLD APPLANCIES WHEN CAMPING WHICH REQUIRE HIGHER AMP OUT PUT THAN THE SPECAIL CAMPING ELETRICAL ITEMS ON THE MARKET, THE EASIEST WAY TO FIND OUT WHAT YOU CAN USE AT ANYONE TIME , LOOK ON THE APPLANCIE AND YOU SHOULD FIND A RATING LABEL , EXAMPLE A NORMAL HOUSE HOLD KETTLE IS 2000 WATTS  , TO WORK OUT HOW MANY AMPS THIS REQUIRES TO FUNCTION FOLLOW THIS EASY SUM. 

2000  DIVIDE  240  =  8.3  AMPS

THE 2000 IS THE KETTLES RATING

THE 240 IS VOLTS OUT PUT FOR THIS COUNTRY

SO ALWAYS DIVIDE THE RATING BY 240 AND THIS WILL GIVE YOU YOUR AMPS REQUIRED TO USE THAT ITEM.