To work it out divide your watts by the volts eg 700 watts divided by 240  volts=2.91amps

Simple easy to read chart.

WATTS TO AMPS CONVERSION

60 Watts    =    0.26 Amp

100 Watts    =    0.43 Amp

200 Watts    =    0.87 Amp

300 Watts    =    1.30 Amp

400 Watts    =    1.74 Amp

500 Watts    =    2.17 Amp

600 Watts    =    2.61 Amp

700 Watts    =    3.04 Amp

800 Watts    =    3.48 Amp

900 Watts    =    3.91 Amp

1000 Watts    =    4.35 Amp

1100 Watts    =    4.78 Amp

1200 Watts    =    5.22 Amp

1300 Watts    =    5.65 Amp

1400 Watts    =    6.09 Amp

1500 Watts    =    6.52 Amp

1600 Watts    =    6.96 Amp

1700 Watts    =    7.39 Amp

1800 Watts    =    7.83 Amp

1900 Watts    =    8.26 Amp

2000 Watts    =    8.70 Amp

2100 Watts    =    9.13 Amp

2200 Watts    =    9.57 Amp

2300 Watts    =    10.00 Amp

2400 Watts    =    10.43 Amp

2500 Watts    =    10.87 Amp

2600 Watts    =   11.30 Amp

2700 Watts    =   11.74 Amp

2800 Watts    =    12.17Amp

2900 Watts    =   12.61 Amp

3000 Watts    =    13.04 Amp

3100 Watts    =    13.48 Amp

3200 Watts    =    13.91 Amp

3300 Watts    =    14.35 Amp

3400 Watts    =    14.78 Amp

3500 Watts    =    15.22Amp

I adopt what you are saying that is to switch off the heater while boiling a kettle - then when finished I switch the heater back on. As I am first up generally I switch on kettle make a drink then put the heating on. My wife however switches it all on then moans that nothing works on 230v which then means I have a trip to the office or if lucky just to the bollard. What she doesnt realise is that she has tripped the other 3 people sharing the bollard as well - uuuurrrrggggghhhh. 

Quote: Originally posted by saxo1 on 21/3/2011

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If the pitch electrics are up to scratch then it shouldn't be possible to trip out the bollard on overload,every socket on the bollard should have it's own overcurrent protection rated at 16 amps,caravans normally have MCB'S rated at 10 amps,so that should trip first.
The only time the whole bollard would trip is on an earth leakage fault when the RCD protecting the bollard could possibly trip.Even this shouldn't normally happen as the RCDs on the bollards are normally time delayed.
Saxo1

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Quote: Originally posted by HEJC72 on 22/3/2011

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I was always told, as a basic rule, only ever use 1 heat emitting device at a time.
So far, I've followed this rule and never tripped the power!

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Just make sure you know where your torch is and that is has working batteries in it and know where your fuse box is in the van in case it ever trips.

Ours tripped once in the evening & we were scrabbling around to find out where the box was in the dark, turns out it's in the bottom of the wardrobe & was buried under a pile of shoes