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Anonymous Poster

Busbar distance

09/30/2008 10:00 AM

Please let me know the minimum distance between phases of 1000A busbars & minimum distance between busbar supports in 440V 3 phase 50Hz system to withstand 50 KA.
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koshy.dennis
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Join Date: Jun 2007
Location: dubai,UAE
Posts: 43
Good Answers: 1
#1

Re: Busbar distance

10/02/2008 3:20 PM

Can you give me on basis of what standard you want to keep the clearance and distance?

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 dennis
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V.I.Abraham
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Safety - ESD - New Member India - Member - New Member Engineering Fields - Energy Engineering - New Member

Join Date: May 2007
Location: Pune , India
Posts: 875
Good Answers: 42
#2

Re: Busbar distance

10/02/2008 4:31 PM

Dear Guest,

Hope you are asking for Clarence between the busbars or is it the crepage distance? the clearance is the shortest distance between two bus at different potential. This value will depend on various factors like humidity, cleanliness of air inside bus bar chamber and ambient temperature. The minimum values of clearance and creping distance are specified in relevant IS and BS standards which you can refer with your parameters and conditions. If the bus bars are insulated it will still be different .

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