Wire gauge/power question

[RU482]

This one's a little off the wall.

How much current, at ~20Vdc, would a copper braid consisting of 64 strands of 42 gauge wire be able to safely conduct?

 

[JohnCU]

42 gauge is incredibly small, probably not a lot, how long is it?

 

[RU482]

2.25 inches

 

[BillGates]

Someone apparently needs homework help.

 

[edro]

It's 64 strands of 42 AWG. That is pretty thick. As a fast guess, I would say 20A.

EDIT:
Together, that is between 6-7AWG.

7 AWG, for power = 30A
6 AWG, for power = 37A

 

[HomeBrewerDude]

yep. why don't we have a homework forums yet?

 

[nwfsnake]

I calc about 1.4 amps nominal.

46AWG= 0.001568 inches

46AWG = 0.0225 amps max current

64*0.0225 amps = 1.4 amps

 

[RU482]

no, not homework help. We're trying to sub in some solder braid we have for another type of braid, and I can't find an online calculator for current capabilities of multi conductor wire.

 

[0]

http://www.powerstream.com/Wire_Size.htm

 

[RU482]

Originally posted by: 0
http://www.powerstream.com/Wire_Size.htm

normally, thats where I'd turn