http://www.delphisecure2.com/Del/attachments/Promotions/fretting.pdf
Good article about fretting corrosion and it's effect on electrical connections.
Good article about fretting corrosion and it's effect on electrical connections.
So what's this fretting corrosion stuff, anyway?
- Thread starter brianl703
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Kestas
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Good article. I work in the bearing industry and I'm very familiar with fretting. I never realized it is such a serious problem with electrical contacts. I can only imagine that my habit of adding silicone grease to underhood electrical (static) contacts can only help with reducing electrical gremlins during the life of the car.
The true solution is to NEVER use Anderson 30 amp connectors. A fouler product never hit the market.
They are sold as hi-rel, easy to use and install!
Not only are they very sensitive slight assembly process variations, they can't really take 30 amps, they are not good in warm temperatures....the bloody things fail via diurnal fretting corrosion!
PS I have posted on the subject before on BiTOG.
They are sold as hi-rel, easy to use and install!
Not only are they very sensitive slight assembly process variations, they can't really take 30 amps, they are not good in warm temperatures....the bloody things fail via diurnal fretting corrosion!
PS I have posted on the subject before on BiTOG.
Yes, good article, written is simple yet accurate terms. I did connector engineering (product engineering) for a large computer maker and was surprised at the misconceptions that abound even in people who should know better.
We had one suppier (they make cars, too) who decided that a Ni barrier coat between the Cu and Au on RAM memory PWA contact fingers was not necessary. We managed to convince them otherwise.
We had one suppier (they make cars, too) who decided that a Ni barrier coat between the Cu and Au on RAM memory PWA contact fingers was not necessary. We managed to convince them otherwise.
kenw - do you have any experience with these Anderson 15/45 connectors ?
What are your thoughts on the design?
What are your thoughts on the design?
My previous post on the subject: http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=8;t=002501
No experience with that brand here, Pablo, but they look passable.
My issue would be the flat style contact which would seem to be an issue over time. Flat contacts realistically still only contact in a very small area. Thermal cycling will cause fretting and then it is donwhill from there.
For ultra-hirel data circuits, we use Hypertronics which uses a coiled contact sleeve:
http://www.hypertronics.com/
They also have higher power cap'y versions.
by they way, here's what we do:
http://www.tuboscopepipeline.com/AboutUs/AboutUs.htm
My issue would be the flat style contact which would seem to be an issue over time. Flat contacts realistically still only contact in a very small area. Thermal cycling will cause fretting and then it is donwhill from there.
For ultra-hirel data circuits, we use Hypertronics which uses a coiled contact sleeve:
http://www.hypertronics.com/
They also have higher power cap'y versions.
by they way, here's what we do:
http://www.tuboscopepipeline.com/AboutUs/AboutUs.htm
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