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Old 06-25-2009, 06:06 PM   #21
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Good link. Thanks
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Old 06-25-2009, 06:31 PM   #22
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You are welcome.
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Old 06-25-2009, 07:28 PM   #23
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conduit fill

http://cerrowire.com/default.aspx?id=49
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Old 06-25-2009, 08:16 PM   #24
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I just bookmarked it, thanx.
Chuck
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Old 06-25-2009, 10:12 PM   #25
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there are a few for tray and trough fill, google cable tray fill and a whole list comes up.
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Old 06-26-2009, 08:11 AM   #26
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I had one for years and used it often when I eas a general foreman. It was handy on the job sites. I mainly used it on industrial, generally commercial you always have a set of engineered drawings to use. Industrial not so much. I have not used it in about 5 years.
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Old 06-26-2009, 09:31 AM   #27
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I've used an electrical calc for years just because I never liked doing vd calculations. the newer ones are updatable. I know that the calculator figures the whole wire run. Do the on line ones do the same? For instance, if you have garage 200' from the supply, do you have to figure 200' only or do you have to use 400' to get the voltage drop over the full length of the wire back to the supply?
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Old 06-26-2009, 05:26 PM   #28
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generally commercial you always have a set of engineered drawings to use.
Thats the problem I don't trust the engineer at all. I'm starting to see them make more and more mistakes on these jobs and I would like to double check them before I install it.
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Old 06-26-2009, 05:41 PM   #29
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......For instance, if you have garage 200' from the supply, do you have to figure 200' only or do you have to use 400' to get the voltage drop over the full length of the wire back to the supply?

Depends on if there is a x2 multiplier in the formula.
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