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darold
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Join Date: Dec 2006
Posts: 11

Current Capacity of 4 SPS Aluminum Bus

08/11/2011 12:05 PM

Can anyone lead me in the direction to fine out the IEEE or ANSI standard to find out what the max. current capicity of 4" SPS alunimium bus .

Thanks Darold
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PeterT
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Join Date: May 2010
Location: Liverpool, NY
Posts: 961
Good Answers: 131
#1

Re: current capacity of 4 SPS alunimuim bus

08/11/2011 12:31 PM

Ampacity of bus tubing is calculated from parameters such as the conductivity of the particular alloy (as different alloys have different conductivities). Look at the following references. The first one has some tables that give ampacity values for different alloys & sizes.

http://www.acasolutions.com/resource_center/online_catalogs/pdfs/Substation-BusConductors.pdf

http://www.copperinfo.co.uk/busbars/pub22-copper-for-busbars/sec3.htm

http://www.ndt-ed.org/GeneralResources/MaterialProperties/ET/Conductivity_Al.pdf

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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

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Location: Richland, WA, USA
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#2

Re: current capacity of 4 SPS alunimuim bus

08/11/2011 4:59 PM

Oh, goody, another spelling of "alunimuim" to add to the "Aluminium?" thread on aluminum.

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PeterT
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#3
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Re: current capacity of 4 SPS alunimuim bus

08/12/2011 10:29 AM

Moderator (?) must have corrected it in the OP's title line, because I didn't touch it - my reply just had what CR4 filled in. Yes, it is rather unusual, isn't it?

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