calculations
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Power to an out building
Say you wanted to power a shed office, or somethign similar, and lets say it's up the end a garden. Would you split at the meter to an isolator switch or a breaker then swa all the way up to a new CU. Then for earth would you have to use an earth spike instead of the earth down the armoured...- adam.h
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- building calculations circuit earth out power power to spike
- Replies: 1
- Forum: Australia
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pfc calculations
hi guys doing calculations ov pfc at the consumer unit i have a ze=0.09 getting the figure ov 24ka doin 230/2400=0.09 is this correct many thanks:cool:- wire the world
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- calculations pfc
- Replies: 19
- Forum: Periodic Inspection Reporting & Certification
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ELECSA Certification Scheme Design calculations and elecsa assemssment
Hi All, I have my Elecsa assessment tomorow at 9am and was just looking through the requirements and it mentions about Design record keeping in the guide to conformances. Will the inspector need to see design calculations for my install and what is the best way of presenting this. Any help...- sivoodoo
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- assessment calculations certification certsure design elecsa guide install maybe scheme through
- Replies: 2
- Forum: Certification NICEIC, NAPIT, Stroma, BECSA Forum
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Calculations and Formula
Below is a list of links that i have looked up to cover popular formula and enter the data and retrieve the answer type sites, please vote your favorites. This data could be used to set up another section if possible. 1) http://www.ifigure.com/engineer/electric/electric.htm 2)...- Andy Smith
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- calculations formula
- Replies: 2
- Forum: Australia
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3 ph cable calculations
Hi all, Can anyone help me as to how to calculate the maximum demand on a 3 ph supply for cable sizing? Can i just quickly estimate the demand by the breakers and multiply by a g factor i got from the IET design guide for sparks. eg 250 amps counting the breakers x 0.7 factor for mixed...- kevinreilly
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- cable cable calculations calculations canada
- Replies: 6
- Forum: Electrician Talk | All Countries
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r1 and r2 temperature calculations
Hi all just been going through max zs etc and all the temperature changes if i have got this right when you measure for R1 and R2 you take the temperature at the time. Apply a rating factor to get it ot 20 degrees and then when calculating zs or what ever to get to 70 degrees multiply it...- maddfridge
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- calculations temperature
- Replies: 4
- Forum: Periodic Inspection Reporting & Certification
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