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#94326 - 07/22/05 11:49 AM sizing service with voltage drop
pwregan Offline
New Member

Registered: 06/04/05
Posts: 6
Loc: Plymouth,MA
doing a new home with a underground service that is about 250 feet long,could anyone show me how to calculate wire size?
thank you,
patrick regan

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#94327 - 07/27/05 07:11 PM Re: sizing service with voltage drop
e57 Offline
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Registered: 05/27/03
Posts: 2837
Loc: S.F.,CA USA
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#94328 - 07/28/05 12:18 AM Re: sizing service with voltage drop
DiverDan Offline
Member

Registered: 03/10/05
Posts: 38
Loc: Sacramento, CA
That very simple calculator is missing both ambient and terminal temperatures ,raceway types and power factor...all having a major factor in VD computation.

Try this one as it takes everything into consideration inclusive of raceway types and temperatures. Also the VD formula is not a simplistic 2KID but rather IEEE 141 exact formula.
http://www.dolphins-software.com/Volts_Setup.exe

[This message has been edited by DiverDan (edited 07-28-2005).]
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