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Voltage Drop Within Cable: Based on IEC

09/05/2011 4:16 AM

Dear All,

Does any one know the formula for voltage drop within cable. I knew some formulas by IEEE, however I need the same based on IEC, VDE standards.

If you can suggest IEC std name to be refered, this would be a great healp.

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Guru
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#1

Re: voltage drop within cable: Based on IEC

09/05/2011 4:19 AM

British Standard 7671 knows all this.

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Guru
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#2

Re: Voltage Drop Within Cable: Based on IEC

09/05/2011 11:28 AM

As far I as know volt drop calculations are universal.

It doesn't matter what regulations you use the resistance of a piece of copper doesn't change.

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#3

Re: Voltage Drop Within Cable: Based on IEC

09/22/2011 6:59 PM

What Mr. Tonys says is correct.

In Saudi Arabia, all most all cable manufactures are using IEC 502 standard. but when

percentage of voltage drop comes their formula is same as given in IEEE.


So, most practical and complete requirements of the load and cables %V drop formula is given as bellows:


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Anonymous Poster #1
#4
In reply to #3

Re: Voltage Drop Within Cable: Based on IEC

09/23/2011 12:28 AM

Dear Mushtaq,

Thanks for your reply, could you please look following formula. I did the calculation as way suggetsted by you. I think this is the best way.

Could you please explain in which standard I will get following formula for allowable cable length.

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#5

Re: Voltage Drop Within Cable: Based on IEC

09/23/2011 10:22 AM

Dear Anonymous Post#1


Please define each and every item used in the formula given by you so that I can check and let you know the thing you want.


I am waiting for your reply


Thank you

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Anonymous Poster (1); Mushtaq Hussainh (2); PWSlack (1); TonyS (1)

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