12 VOLT VOLTAGE DROP CHART

[GARY MINKER]

Hi For those olf you concerned about voltage drop, use this handy link and learn about 10% and 3% critical voltage drop Gary http://www.marinco.com/page/wire-tech-data --- On Thu, 7/9/09, David Josephson wrote: From: David Josephson Subject: [WanderlodgeForum] Re: 12v power for portable macerator pump To: WanderlodgeForum@yahoogroups.com Date: Thursday, July 9, 2009, 4:35 PM We have equipped a couple of coaches over the years with the Jabsco macerator pump. It is very sensitive to voltage drop -- it really wants at least 12 volts at the terminals, otherwise it stalls very easily. We also strictly limit TP usage when we're going to use it (single ply only, and try not to wad it up tightly when you toss). Running 10 gauge wire from the batteries versus 14 gauge through a nearby circuit made the difference in many cases between running or not. When first installed, the coach or genset needed to be running (~14 volts at the battery), now it works fine from a charged battery bank (12.3 - 12.8 V). Cigarette lighter plugs are out -- too much resistance. Now we are in the process of standardizing on a 12 volt outlet. The solar house people use NEMA 6-15 plugs and outlets for 12V, we might use those or 6-20. These look like regular 120 volt plugs but at least one of the blades is sideways (intended for 240 volts). -- David Josephson Santa Cruz, CA 1983 Airstream diesel "Wanderlodge Lite" --- In WanderlodgeForum@ yahoogroups. com, "Henry Jay Hannigan" wrote: > > Alex: > > When I put my DRAINMASTERS on (12volt dump valves), I just connected into the 12volt overhead light wires....HOWEVER. ..your mixmaster may require more operating current..... .....BOB LUMAS memmer of this Forum has one and he knows the answer.. > Regrads, > Hank > 90SP36..for sale in Vegas > --- In WanderlodgeForum@ yahoogroups. com, "Alex Smith" replytoalex@ wrote: > > > > Hello to all, > > I would like to use a portable macerator pump from time to time. Any help on the best way and from where to tap 12v 20 amp power would be greatly appreciated! Thanks. > >