Wire gauge for 100 meter tether?

Control Boards, Controllers, Tethers, Ect.
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bigdavevw
Posts: 22
Joined: May 7th, 2012, 12:40 pm

Wire gauge for 100 meter tether?

Post by bigdavevw »

Hi guys, what gauge of wire would i need to power my Rule bilge pumps with a 100 meter tether? Will be using a 12v truck battery, and 6 motors.

Cheers
Dave
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Rover
Posts: 108
Joined: Jul 18th, 2011, 10:23 pm
Location: Minnesota

Re: Wire gauge for 100 meter tether?

Post by Rover »

The wire size of your tether is directly related to the tether voltage and current draw.

With a 300 foot tether using 14 gauge wire powered from a battery, you will only have 6 volts at the ROV with a 4 amp draw.

Check out this voltage drop calculator. http://www.nooutage.com/vdrop.htm

You will find a shorter tether closer to 100 foot will give you a higher voltage at the ROV.

The bigger the wire gauge, the heavier the tether will be.

Jim
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