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chandananana
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Join Date: Dec 2010
Posts: 2

Wire Size

03/17/2011 8:45 AM

when i know the kw how to find the wire size?
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TonyS
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Join Date: Aug 2010
Location: Resting under the Major Oak
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Good Answers: 181
#1

Re: Wire Size

03/17/2011 10:03 AM

Look in the ratings tables. After you've worked out the current.

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msamad
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Join Date: Feb 2009
Location: Houston, USA
Posts: 946
Good Answers: 244
#2

Re: Wire Size

03/17/2011 9:47 PM

Search for cable sizing in this forum and you will find lot of discussion on this topic. Here are some that may help you:

http://cr4.globalspec.com/thread/54875/Ampacity-Table-and-Calculations

http://cr4.globalspec.com/thread/57342/Cable-Selection-as-per-Theory-Calculation

http://cr4.globalspec.com/thread/61606/Voltage-Drop-Due-To-Heavy-Load

http://cr4.globalspec.com/thread/56416/Motor

http://cr4.globalspec.com/thread/36311/Sizing-Circuit-Breakers

- MS

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pnaban
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Join Date: Jun 2010
Location: srilanka
Posts: 2725
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#3

Re: Wire Size

03/18/2011 1:00 AM

If you know the voltage and pf too you can calculate Amps. Then if you have chosen the type of cable,you can find wire size from tables

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