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You need to know the amps of the site supply (many abroad only supply 6amps).  Check the wattage of your appliances (on the rating lable, usually underneath - if it's given in kW, that's kilowatts - each kilowatt is 1000 watts).  Divide the number of watts by the voltage of the mains supply - this gives the number of amps the appliance will draw.  Make sure you never go over the site's supply.  And it's best to allow a 'safety margin', especially when using something like a kettle, as they can spike when you first switch them on and draw a bigger current then usual.

As a general rule of thumb, don't use two appliances that heat up at the same time.  If the site supply is low, I would also suggest you disconnect the coolbox while using anything else - better to be over-cautious that trip the supply.

Hi I used an ehu like that one in a tent for years, including in france. Supply there tends to be 6a which means you have to be pretty careful about not using multiple plugs at once.

   A travel kettle is best i think (but slow!) - an ordinary domestic one can trip the ehu, check the wattage on your mini oven and leccy ring. Watts divided by voltage = amps ( I am pretty sure I have that right, but i am sure someone will correct me if not). Mobiles, laptops, psps etc use negligable amounts.

 My dad gave me the rule that I should never use more than one thing that heats up at once, so if the heater (2kw fan) is on, you have to turn it off to brew up! I don't know whether he is being excessively cautious, but I have never tripped my ehu!

 Hope that helps

oh, someone else typed it faster!

Quote: Originally posted by clairehope on 27/7/2010

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oh, someone else typed it faster!

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Depends on the site's supply - 1380 divided by 220 (French mains is 220V, not 230V like ours (ours hasn't been 240V for years)), so that is just over 6 amps.  Therefore, if the site is only a 6A supply you would very likely trip it.  But if your site offers a 10A supply, you would be OK.  As suggested before though, even if the site supply is high enough, only use one appliance that heats up at a time.

Have fun!