Discuss How to work out the total design load to find my swa cable size in the Electrical Forum area at ElectriciansForums.net

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What is the reason you were given for converting to TT if its over a certain distance? And for that matter what value do you use for the distance at which you need to do this?
What do you mean by no extraneous parts therefore no need for PME?
None of this sounds 'old school' to me, more like nonsense!
Hi it was just the way was taught many moons ago regarding tt and outbuildings ,,, and the no extraneous parts was meant to indicate for this instance the out building is made of wood no metal, and if used tt would be no pme, but dnt worry about tt I going to use the tncs earth, sorry about the way I type not very good at typing on these small phones and new to forums cheers guys.. Also I will have update on what equipment is going to be used tomorrow so can make better assumption of ib of sockets,, sorry so late to reply had 12 hour day and at it again in 8
 
Allowing for 63A over 40m and a 2% volt drop, this allows an extra 1% for your lighting to comply with a 3% requirement you will need a minimum 25mm cable.
I was hoping it wouldn't come to thst size the 40m swa will be clipped direct ,the lighting circuits max length run will be around 10meters,, 16mm swa Vd is around 2.6 mV/a/m
 
I was hoping it wouldn't come to thst size the 40meters run of swa will be clipped direct ,the lighting circuits max length run will be around 10meters,, 16mm swa Vd is around 2.6 mV/a/m
 

Reply to How to work out the total design load to find my swa cable size in the Electrical Forum area at ElectriciansForums.net

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