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[aprssig] Field Day power (220 VDC)

Scott Miller scott at opentrac.org
Sun Oct 21 00:54:29 UTC 2007


> Anyway, using lightweight #18 extension cords can deliver
> killowatts of power over hundreds of feet using this method.
> So... Just experimenteing, but it appears to work just fine.
> Delivering a kW is only drawing 5 amps on the lightweight
> extension cords at 220 VDC.

Just thought I'd point out that the (conservative) power transmission 
capacity of 18 AWG cable is about 2.3 amps using the 700 circular mil 
per amp rule.  Yeah, it's a conservative guideline, but it's the one the 
ARRL handbook recommends.

Scott
N1VG





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