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Anonymous Poster

Copper Busbar Size

10/23/2007 3:27 AM

Please tell me the size of copper busbar suitable for carrying 3000 Amps, design ambient temp=35 deg C, permissible temp rise over ambient=50 deg C, final working temp=85 deg C.
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PWSlack
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#1

Re: Copper Busbar Size

10/23/2007 4:18 AM

Refer to the organisation designing the equipment and get them to explain how they sized it.

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Bill
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#2

Re: Copper Busbar Size

10/23/2007 8:52 AM

Look here. They list a variety of dimensions with current carrying capacity (Ampacity).

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PetroPower
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#3

Re: Copper Busbar Size

10/24/2007 12:09 AM

Painting black carries more amps.

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peterd
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Join Date: Dec 2005
Location: Willenhall, UK
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#4

Re: Copper Busbar Size

10/24/2007 3:56 AM

Please advise AC or DC, indoor/outdoor/enclosed/insulated?

Do you want to use a single bar or multiples?

What section - flat/round/hollow/solid?

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Anonymous Poster
#6
In reply to #4

Re: Copper Busbar Size

10/25/2007 3:34 AM

busbar is enclosed in the panel. it will be rectangular type.
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peterd
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Location: Willenhall, UK
Posts: 159
#7
In reply to #6

Re: Copper Busbar Size

10/25/2007 3:46 AM

Assuming ac 50 or 60Hz

For single bar use 200x12 (8"x1/2") or 160x16 (61/2"x5/8")

For multiple bars use 4 off 75x6 or 3 off 100x6

Depend what you are connecting to.

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mofoz
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Join Date: Oct 2007
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#5

Re: Copper Busbar Size

10/24/2007 7:52 AM

This web site should help you.

http://www.stormcopper.com/design/ampacity.htm
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Anonymous Poster (1); Bill (1); mofoz (1); peterd (2); PetroPower (1); PWSlack (1)

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