how to know cable sizing

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ikram shehzad Associate Join Date: Jun 2011 Location: PAKISTAN Posts: 26	how to know cable sizing 07/28/2011 4:35 PM
	can anybody help me to find cable sizing. if there is any L.T cable or H.T cable then can we know by any calculation or formula that what is it,s size in "mm". Thank,s and Regard,s. __________________ Ikram Shehzad
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#1 Re: how to know cable sizing 07/28/2011 4:38 PM
	There are hundreds of free on-line cable calculators. Cable Sizing Calculator - myElectrical Wire Size Calculator - CSGNetwork.com Free Information ...
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wareagle Guru Join Date: Jun 2008 Location: Alabama Posts: 1604 Good Answers: 63	#2 In reply to #1 Re: how to know cable sizing 07/28/2011 5:37 PM
	Check that last one closely. The first 4 are the easy part. The last one is where you earn your money.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#3 Re: how to know cable sizing 07/29/2011 5:03 AM
	Hire a qualified Electrical Engineer, who will use the local equivalent of British Standard 7671. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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amitabha0107 Power-User Join Date: Feb 2011 Location: Shimurali, Westbengal,India Posts: 119	#4 Re: how to know cable sizing 07/29/2011 10:43 AM
	To calculate the cable size it is necessary to know the followings- Input data- -------------- Voltage Kv Total Kw Load Power Factor Cable resistance and reactance Demand Factor Load Factor Ambient Temparature Number of Cables in Paralel Laying of Cable(Air/ Under Ground) Short Circuit withstand time Output- ------------- Max current= Derating Factor= Voltage drop= Area of cable=Ish*sqrt(T_short)/derating factor/number of parallel cable
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Chook Commentator Join Date: Mar 2011 Location: off the beaten track, not quite whoop whoop nor humptydoo Posts: 57	#5 Re: how to know cable sizing 08/02/2011 1:45 AM
	AS/NZS 3008 is in mm __________________ Everything works out in the end, just not neccessarily how you want
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amitabha0107 (1); Chook (1); lyn (1); PWSlack (1); wareagle (1)

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