All Questions
8
questions
8
votes
2
answers
2k
views
Why coated copper carry more current than bare bar?
From Rittal Technical Information Rated currents of busbars E-Cu (DIN 43 671) :
In the table, it says bare bar carry less current than coated bar. What is the reason of that ? and what kind of coated ...
- 233
-1
votes
1
answer
182
views
Calculation of Current Capability of Copper Bus Bar
If we look the table 20x10 copper bus bar with 199 mm2 is able to carry 427A (bare bar)according to table.So we ended up with 2.14572864322 A/mm2. However, when we 30x10 mm2 copper bus bar with 299 ...
- 233
1
vote
2
answers
244
views
Calculation of the cross section of the busbar in the switchgear
To calculate the cross-sectional area of the copper busbar, it is necessary to calculate the permissible current of the busbar.
One of the correction coefficients that must be multiplied in this ...
- 13
6
votes
3
answers
619
views
How are copper busbars connected to each other?
How are busbars connected to each other? A quick google image search makes it obvious that it is bolts.
https://i.ibb.co/8D05Sk5/power-dist-jpg.jpeg
The specifics of the bolts is what I am most ...
- 917
0
votes
0
answers
25
views
Copper or Brass for G-Clamp busbar
I'm looking into a busbar for a test setup temporarily wire up G-Clamps.
The test setup will then perform electrical tests (for the cable) or high current and voltage. (100A for seconds)
Existing test ...
- 23.2k
12
votes
2
answers
646
views
Galvanic corrosion between silver plated MCCB terminals and aluminium
We are planning to install a switchboard in one of our garages. The MCCB (moulded case circuit breaker) is used as a main incomer which has silver plated copper terminals. The aluminium busbars are ...
- 327
0
votes
0
answers
92
views
Copper Busbar, DC Copper Busbar [duplicate]
How can I calculate the current carrying capacity of a DC copper bus bar with respect to temperature?
Bus bar specifications:
Copper Busbar
Width=40mm
Thickness=6mm
Ambient Temp5 (C)=4
- 35
0
votes
2
answers
224
views
Current carrying cable/busbar cooling ways in an aircraft
For an aircraft has an altitude 35000 feet, what'd it have to cool its cables/copper busbars up? High altitude means lower air density and it means lower oxygen, convection doesn't make sense and if I ...
- 21