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hasirul87
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Join Date: Oct 2011
Posts: 1

Busbar Contact Resistance

10/01/2011 2:11 AM

Could any one please tell me the minimum acceptable value for BUSBAR contact resistance?.. with references like IEC,BSI,IEE is highly appreciated.
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lyn
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Join Date: Oct 2008
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#1

Re: Busbar contact Resistance

10/01/2011 2:17 AM

Zero.
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#6
In reply to #1

Re: Busbar contact Resistance

10/03/2011 6:04 AM

Quite. It's just so difficult to get negative resistance these days...

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woodygb
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Location: United Kingdom
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#2

Re: Busbar contact Resistance

10/01/2011 6:01 AM

"Could any one please tell me the minimum acceptable value for BUSBAR contact resistance?.. with references like IEC,BSI,IEE is highly appreciated."

You need to alter your question.

Perhaps this format will get you the information you desire.

Could any one please tell me the acceptable range for BUSBAR contact resistance?.. with references like IEC,BSI,IEE is highly appreciated.

Lyn has kindly given you a start for this range..

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kvsridhar
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Location: Temporarily at Ashburn, VA
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#3
In reply to #2

Re: Busbar contact Resistance

10/01/2011 7:48 AM

Another option perhaps.....

"Could any one please tell me the maximum acceptable value for BUSBAR contact resistance?.. with references like IEC,BSI,IEE is highly appreciated."

Well. A rose by any other name etc... Nothing will get any useful answer, given the negligible data provided.

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3
soebfatehi
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Join Date: Jun 2009
Posts: 223
Good Answers: 15
#4

Re: Busbar Contact Resistance

10/01/2011 10:48 PM

I have not searched in the codes for an answer because i have serious doubts whether a specific universal answer exists . . .


I advise you to restate, for yourself, your concern to know what the joint contact resistance should be in relation to the total resistance of the busbar . . . also note that differently acceptable ranges values may be have to exist for different voltage conditions, materials used and types of joints (brazed or riveted or bolted or cold pressed or clamped).

Many references are available to help you with the knowledge you seek . . . some are listed below . . when you read through you will find others who have asked this question before you . . . do contact them and find out what they have learned in the period between asking the question and now . . . their learning(s) may often be more pertinent and focused than that of "experts" who may know more and share more than you need (or want) to know . . .

If still in doubt . . . do come back . . .

ref:

:-

http://cr4.globalspec.com/thread/71091/Overlapping-Length-for-the-Busbar-Joint

:-

http://cr4.globalspec.com/thread/62056

:-

http://cr4.globalspec.com/thread/62136/Contact-Resistance-of-Busbar-Joints

:-

http://cr4.globalspec.com/thread/50934/Busbar-mV-Drop-Test

:-

http://cr4.globalspec.com/thread/62136/Contact-Resistance-of-Busbar-Joints

:-

http://www.copperinfo.co.uk/busbars/pub22-copper-for-busbars/sec7.htm

:-

http://www.advancedprobing.com/pdfs/contact-resistance-1.pdf

:-

http://www.advancedprobing.com/pdfs/contact-resistance-2.pdf
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kvsridhar
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Join Date: Sep 2009
Location: Temporarily at Ashburn, VA
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#5

Re: Busbar Contact Resistance

10/02/2011 2:05 AM

Please take a look at this website...maybe useful.

http://www.copperinfo.co.uk/busbars/pub22-copper-for-busbars/sec7.htm#Joint%20Resistance

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kvsridhar (2); lyn (1); PWSlack (1); soebfatehi (1); woodygb (1)

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