[Elecraft] Proper K2 power cord?

[David Cutter]

I'd like to add to Larry's note:  the current capacities given in the table 
indicate the maximum safe current for usual grade of insulation (better 
insulation allows higher currents and temperatures).  Single wires are 
usually graded for their 'suspended in still air' rating and pairing up in a 
cable degrades this because they heat each other.  In large cable bundles 
this can degrade the rating to less than half.  What could be more important 
in some applications as Steve alluded to is the voltage drop.  If you have 
long runs, a thicker cable would be better.

David
G3UNA

----- Original Message ----- 
From: "Larry" <claylj at gmail.com>
To: "Steve Kallal" <n6vl at yahoo.com>
Cc: <elecraft at mailman.qth.net>
Sent: Sunday, July 15, 2007 3:06 AM
Subject: Re: [Elecraft] Proper K2 power cord?


> Steve,
>
> Here is a chart of wire gage versus current capacity for power 
> transmission.
>
> Gage   Amps
> 12         9.3
> 14         5.9
> 16         3.7
> 18         2.3
> 20         1.5
>
> The K2 10W version uses 2.0 amps for transmit and up to 0.250 amps for 
> receive. It looks like  16 gage wire would work fine.
>
> If it were me, I would buy the connector from Elecraft.
>
> 73
> Larry
> KB5DXY
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