# Continuous current capacity of this conductor?

How much current can a copper conductor that is 2 meters long, 0.003m thick, and 0.00045m wide continuously carry? Also, the resistance is about 0.02 Ohms.

• google.com/search?q=ampacity+calculator – Ignacio Vazquez-Abrams Sep 16 '14 at 20:39
• You might want to consider temperature as well... – copper.hat Sep 16 '14 at 20:46
• It also depends on environment. In vacuum it will be lower than on diamond heatsink. – venny Sep 16 '14 at 20:56
• @Andyaka It's DC, so at max how much power could it continuously deliver? Is 29V x 9A possible? Without fusing? I edited the voltage, should be 29V not 21V. – Pupil Sep 16 '14 at 21:44
• The definitive answer would require finite element analysis. But comparing current density (here it is $6.7\,\mathrm{A/mm^2}$, cables for house wiring are about $6.4\,\mathrm{A/mm^2}$ with thick PVC sheath), it seems that it will probably work fine without much heating. – venny Sep 16 '14 at 23:09