Copper Busbar Sizing

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Anonymous Poster	Copper Busbar Sizing 02/07/2010 10:33 PM
	Please confirm the Size of Copper Bus Bar For 4 Pole, 1600 Amp & 4 Pole 500 Amp
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#1 "Re: ENQURY" by wareagle on 02/07/2010 10:47 PM (score 2)

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#7 "Bus Bar" by wareagle on 02/10/2010 7:53 PM (score 1)

wareagle Guru Join Date: Jun 2008 Location: Alabama Posts: 1604 Good Answers: 63	#1 Re: ENQURY 02/07/2010 10:47 PM
	Unless you provide a value to check there is no value to confirm. You can check here http://cr4.globalspec.com/search/sitesearch?do=show&sort=textmatchrank&srch=bus%20bar%20ampacity&srchobjs=t%2Cc&fs=12&order=asc
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#2 Re: ENQURY 02/08/2010 4:02 AM
	http://www.copper.org/applications/busbar/homepage.html __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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Le_Noble Power-User Join Date: Feb 2008 Location: Beirut Lebanon Posts: 197 Good Answers: 8	#3 Re: Copper Busbar Sizing 02/09/2010 12:19 AM
	for 50 deg C ambient you can use for 1600 Amp120x10mm bar or 80x15mm; and 50x8mm for 500 amp, this will give a bar temperature rise up to 90 deg c __________________ dont say it, write it
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Dickson

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Join Date: Nov 2009

Location: Abuja, Nigeria.

Posts: 126

Re: Copper Busbar Sizing

02/09/2010 1:06 AM

Bus Bar Design Considerations

TABLE 2. QUICK BUSBAR SIZE SELECTOR

Required Ampacity*	Busbar Dimension, Inches**
30 °C Rise	50 °C Rise	65 °C Rise
100-149	1/16 x 1/2 1/16 x 3/4	1/16 x 1/2
150-199	1/16 x 1 1/8 x 1/2 3/16 x 1/2	1/16 x 3/4	1/16 x 1/2
200-249	1/8 x 3/4 1/4 x 1/2	1/8 x 1/2	1/16 x 3/4 1/8 x 1/2
250-299	1/16 x 1 1/2 1/8 x 1 3/16 x 3/4	1/16 x 1 1/8 x 3/4 3/16 x 1/2	1/16 x 1
300-349	1/16 x 2 3/16 x 1 1/4 x 3/4	1/4 x 1/2	1/8 x 3/4 3/16 x 1/2
350-399	1/8 x 1 1/2	1/8 x 1 3/16 x 3/4	1/4 x 1/2
400-449	1/4 x 1 3/8 x 3/4	1/4 x 3/4	1/16 x 1 1/2 1/8 x 1 3/16 x 3/4
450-499	1/8 x 2 3/16 x 1 1/2	1/16 x 2 3/16 x 1	1/4 x 3/4
500-599	1/4 x 1 1/2 3/8 x 1	1/8 x 1 1/2 1/4 x 1 3/8 x 3/4	1/16 x 2 1/8 x 1 1/2 3/16 x 1
600-699	1/8 x 2 1/2 3/16 x 2 1/2 x 1	1/8 x 2 3/16 x 1 1/2 3/8 x 1	1/4 x 1 3/8 x 3/4
700-799	1/8 x 3 3/16 x 2 1/2 1/4 x 2 3/8 1 1/2	1/4 x 1 1/2	1/8 x 2 3/16 x 1 1/2 3/8 x 1
800-899	1/8 x 3 1/2 3/16 x 3 1/4 x 2 1/2 3/8 x 2	1/8 x 2 1/2 3/16 x 2 1/2 x 1	1/4 x 1 1/2
900-999	3/16 x 3 1/2 1/4 x 3	3/16 x 2 1/2 1/4 x 2 3/8 x 1 1/2	3/16 x 2 1/2 x1
1000-1249	3/16 x 4 1/4 x 3 1/2 3/8 x 2 1/2 3/8 x 3 1/2 x 2 1/2 x 2 1/2	1/8 x 4 3/16 x 3 1/4 x 2 1/2 3/8 x 2	1/8 x 3 3/16 x 2 1/2 1/4 x 2 3/8 x 1 1/2
1250-1499	1/4 x 4 3/8 x 3 1/2 1/2 x 3	3/16 x 3 1/2 3/16 x 4 1/4 x 3 3/8 x 2 1/2 1/2 x 2	1/8 x 4 3/16 x 3 1/4 2 1/2 3/8 x 2
1500-1749	1/4 x 5 3/8 x 4 1/2 x 3 1/2 1/2 x 4	1/4 x 3 1/2 1/4 x 4 3/8 x 3 1/2 x 2 1/2	3/16 x 3 1/2 3/16 x 4 1/4 x 3 3/8 x 2 1/2 1/2 x 2
1750-1999	1/4 x 6 3/8 x 5	3/8 x 3 1/2 1/2 x 3	1/4 x 3 1/2 1/4 x 4 3/8 x 3 1/2 x 2 1/2
2000-2499	1/4 x 8 3/8 x 6 1/2 x 5 1/2 x 6	1/4 x 6 3/8 x 5 1/2 x 4	1/4 x 5 3/8 x 4 1/2 x 3 1/2
2500-2999	1/4 x 10 3/8 x 8	3/8 x 6 1/2 x 5	1/4 x 6 3/8 x 5 1/2 x 4

* For 60 Hz current.

** Table gives busbar cross section which will probably be large enough for Ampacities within each range. Knowing required ampacity, determine possible busbar dimensions from the table. Then check Table 1 to verify that size selected has the necessary ampacity. Example: Assume that required ampacity is 185 amps at 30 °C rise. Table 2 indicates that 1/16 x 1 in. size would probably be adequate. This is confirmed by Table 1 which lists the ampacity of 1/6 x 1 in. busbar as 187 amps.

Busbar Ampacity Tables

Action
Action	Table	Table Name
Ampacity	#1	Ampacities of Copper Alloy 11000 Busbars
You are here	#2	Quick Busbar Size Selector
Emissivity	#3	Effect of Emissivity and Number of Busses on Ampacity

You get in touch with the above company or google search 500 or 1600 copper bar

Dickson

__________________
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RAJ089 Commentator Join Date: Oct 2009 Posts: 63	#6 In reply to #4 Re: Copper Busbar Sizing 02/09/2010 10:20 AM
	VERY GOOD ANSWER. This help or advice is commendable. I will never give the reply---GOOGLE IT--. Please refrain from such answers. This is my recommendation and not an advice. Please do not get offended. Thakral Raj
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MasterEmaybe Associate Join Date: Dec 2008 Location: Kuwait Posts: 27	#5 Re: Copper Busbar Sizing 02/09/2010 2:55 AM
	N.E.C. 366.23 (A) - 1000 amps per square inch for copper bus bar. 1.6 x 1000 =1600, bus bar size would be 1.6 square inch copper bus bar. .5 x 1000 = 500, bus bar size would be .5 square inch copper bus bar For a round bus bar multiply the amps x .7854. Aluminum is 700 per sq. in. Mark __________________ Mark Abell
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wareagle Guru Join Date: Jun 2008 Location: Alabama Posts: 1604 Good Answers: 63	#7 Bus Bar 02/10/2010 7:53 PM
	Quote RAJ089 "VERY GOOD ANSWER. This help or advice is commendable. I will never give the reply---GOOGLE IT--. Please refrain from such answers. This is my recommendation and not an advice. Please do not get offended." Why not. Many answers can be found by using a Google Search. An effort should be made to find the answer before posting here. I see nothing wrong in directing one to the answer to his question rather than spending time answering it on this forum.
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