On Thu, 22 Jan 2009 03:01:31 +0000, nospam
wrote:

"George Vest" wrote:

The wire is 18 GA stranded and the total length of the string is about
800 feet.
^^^ ^^^^


What makes you think it is a short ?

800M is a long run at 24V. If the circuit is holding a contactor in, small
voltage fluctuations will drop it out.

800m of 18 awg is 17 or 18 ohms. Marginal for a moderately large contactor
maybe but if it was so marginal that voltage fluctuations drop it out he
would never pull it in in the first place.

800 FEET, not meters...

5.21 ohms total loop resistance. A drop of about 1/2 volts if the coil
drew 100 MA, which it may. Not significant.