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buss bars
By oregon wind, Section Wind Posted on Thu Jun 19th, 2008 at 01:36:23 AM MST
buss bars

Does anyone have a good source four inexpensive insulated buss bars?

buss bars | 5 comments (5 topical, 0 editorial)

Re: buss bars (3.00 / 0) (#1)
by elvin1949 (elvin1949@yahoo.com) on Thu Jun 19th, 2008 at 05:05:18 PM MST
(User Info)

oregon wind
The cheap way is make your own.
Flatten out some copper tubing{1 inch at least},drill as many holes as you need connections.Make sure they are big enough. Install brass bolt's with lock washers.
Now the hard part,paint the buss bar with 600 volt paint on insulation. Let dry well between each coat of insulation.
Cheap and work's well.
later
Elvin

Re: buss bars (3.00 / 0) (#2)
by frackers (g8ecj at *nospam* gilks dot org) on Thu Jun 19th, 2008 at 05:58:21 PM MST
(User Info) http://www.gilks.org

I managed to get hold of some thick copper sheet (about 14awg) which when cut into strips provides a higher cross sectional area than pipe. For insulation, I used heat-shrink sleeving, 2 layers (and make sure the copper has no sharp edges otherwise the sleeving will tear).

Works well and I would think that a 1" wide strip will be good for up to 100 amps.

Robin - Down Under (or are you Up Over)
[ Parent ]

Re: buss bars & junction box (3.00 / 0) (#3)
by wpowokal on Thu Jun 19th, 2008 at 10:43:49 PM MST
(User Info)

Oregon wind I use copper flat bar inside a square conduit, fortunatly I am old enough to know that it's cheeper to do it once and do it right, un-fortunatly I don't alway listen to my own advice.

If you gave voltages and currents involved it would help those offering advice.

With regards to your previous question, while I am not familuar with your equipment and you give no currents involved, provided each source is isolated via diode/s then they should be able to meet at that one point. Forget their varying voltages, you have answered that, currents are only relevent to the "busbar" and cable ratings.

If all incomming and outgoing were to one stud then it could be hung in mid air and still function.

allan down under
A life lived in fear is a life half lived.

Re: buss bars (3.00 / 0) (#4)
by oregon wind on Sat Jun 21st, 2008 at 01:07:58 AM MST
(User Info)

Thanks all for the advice!

The Voltage and Current are as follows.

48 volt battery system

If everything was running at max amperage, it would be approximately 100 amps.

Re: buss bars (3.00 / 0) (#5)
by wpowokal on Sat Jun 21st, 2008 at 06:15:05 AM MST
(User Info)

What ever you decide I sugest you calculate the voltage drop, I don't know the thickness of 25mm (1") copper pipe without measuring it so can not say if it suits your task, may well but distance is not given.

100 amps @ 48 volts is a sizable system, (5Kw) so worthy of more homework. How many battery banks are you connecting?

http://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html

http://www.stormcopper.com/design/Ampacity-Quick-Chart.htm

allan down under
A life lived in fear is a life half lived.
[ Parent ]

buss bars | 5 comments (5 topical, 0 editorial)

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