Discuss Lighting spur off a fuse spur in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

I'm doubting my math now. To work out the amps when all I've got is the annual consumption I take the annual and divide by 365 (days) then by 24 (hours). This then gives me my watts per hour, I can then add up each appliance and divide by voltage to give me my total amps to find my breaker size?

what are you drinking tonight?
 
Now that rings a bell, thanks! So (and this is from memory so I may very well not be getting this right) if E=Pxt then because I've already got the watts per hour then the math for the tumble dryer is...
E=Pxt
1.4kWh=1400x1

A=w/v
5.8A=1400/240

So then a 6A fuse should take that load. Obviously I have other loads to add to that in this situation BUT from what you guys are saying that seems very low?

230 is the voltage used in calculations.
 
I think he now knows that his cheap ring circuit FCU approach to supplying these types of white goods, isn't an option open to him. It's going to have to be a separate circuit out to this shed, or forget the idea altogether. lol!!
 
I think he now knows that his cheap ring circuit FCU approach to supplying these types of white goods, isn't an option open to him. It's going to have to be a separate circuit out to this shed, or forget the idea altogether. lol!!

I don't think the OP is in the mood for advice.

May be he should employ a competent sparky!!!!
 
i'd have had it installed and tested by now. :sleeping:
 

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