interesting Noalox and Penetrox is not the normal dielectric?, so I would not use it on sensor plugs for example
http://ecat.burndy.com/Comergent/burndy/product/PENA134 this seems to be zinc-fume/dust in thick non-petroleum grease and used for joins with alu-alu or alu-copper. /John ---------------------------------------- > From: marke.han...@hotmail.com > To: ev@lists.evdl.org > Date: Fri, 10 Jan 2014 10:04:14 -0500 > Subject: [EVDL] Dissimilar Metal Contact on LiFePO4 Battery Posts > > Hi Lee etc:I thought that stainless bolts would be a problem on connections > on the Cray-3 supercomputer I worked with Seymour Cray on in Colorado Springs > but the actual electrical connection is *not* through the bolt but through > the contact surfaces of the terminal top and strap (the power supply was > 2000A) - although it was in liquid flourinert - no corrosion. All the LiFePO4 > batteries sold T-Sky & CALB batteries have M8 stainless bolts and copper > straps supplied which are dissimilar metals with the aluminum threads on the > battery terminals. I haven't heard of connection problems from those who > actually drive their EV's 10K+ miles per year but first sanding or wire brush > them & adding Noalox-probably best or dielectric grease to the contacts > elleviates dissimilar metal galvanic corrosion. I noticed that doing nothing > in a wet east coast environment leaves some white surface corrosion after 20k > miles on the aluminum-copper contact point. I ordered NORD lock washers & Noal > ox from Grainger to redo all my connections with the stainless bolts.Have a > renewable energy day,mark in roanoke, VA www.REEVAdiy.org > From: Lee Hart <leeah...@earthlink.net> > To: Electric Vehicle Discussion List <ev@lists.evdl.org> > Subject: Re: [EVDL] Keeping LiFePO4 battery terminals tight every 10k > miles > Message-ID: <52cc422e.4090...@earthlink.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Michael Ross wrote: >> It is necessary to have a properly sized torque wrench, the willingness to >> look up the proper torque setting for the materials involved, and a >> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
