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Forum: Construction, Maintenance & Refit

08-06-2020, 04:07

Replies: 30

Lofrans tigress wire size? Voltage drop/wire size calc question..

Views: 3,783

Posted By Jammer

Re: Lofrans tigress wire size? Voltage drop/wire size calc question..

>plonk<

Forum: Construction, Maintenance & Refit

07-06-2020, 17:09

Replies: 30

Lofrans tigress wire size? Voltage drop/wire size calc question..

Views: 3,783

Posted By Jammer

Re: Lofrans tigress wire size? Voltage drop/wire size calc question..

Did your battery deliver that with the bowthruster operating? Because batteries deliver less voltage under load.

The voltage drop in the cabling is well understood physics. If you are getting...

Forum: Construction, Maintenance & Refit

07-06-2020, 06:16

Replies: 30

Lofrans tigress wire size? Voltage drop/wire size calc question..

Views: 3,783

Posted By Jammer

Re: Lofrans tigress wire size? Voltage drop/wire size calc question..

There is a tendency among diesel mechanics to use very large starter cable.

In cold weather (say, 20 F) a large diesel (typical for a box truck or farm tractor) will draw several hundred amps...

Forum: Construction, Maintenance & Refit

06-06-2020, 16:19

Replies: 30

Lofrans tigress wire size? Voltage drop/wire size calc question..

Views: 3,783

Posted By Jammer

Re: Lofrans tigress wire size? Voltage drop/wire size calc question..

It is not necessary or desirable to limit the voltage drop to 3% for large motor circuits running at 12 volts DC. You're going to lose about 1 volt, around 10%. It's OK.

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