Amp Capacity

[Backhand]

I have some 8 conductor 28 ga.. cable, single strand. I want to do
some simple home automation with it, some small relays, prox switches,
etc., 10-15 VDC range.

How much current can I safely have on a single conductor in the cable
environment?

Thx.

 

[BobG]

http://www.allaboutcircuits.com/vol_1/chpt_12/3.html

 

[Backhand]

I have some 8 conductor 28 ga.. cable, single strand. I want to do

Correction, 24 ga.

 

[Bill Bowden]

How much current can I safely have on a single conductor

in the cable environment?

24 ga copper is .0262 ohms per foot, so 100 feet will drop 2.62 volts
at 1 amp, and dissipate 2.62 watts of heat.

Figure it out from there.