Ampacities of platinum and stainless steel
Ampacities of platinum and stainless steel
(OP)
I am having difficulty finding ampacities of materials other than copper and aluminum. I have a special interest in using stainless steel or possibly platinum. In any event, I will be using 10 feet or less, probably only 4 feet. What AWG of platinum wire or diameter of stainless steel wire rope would I need in order to carry 20 amps.






RE: Ampacities of platinum and stainless steel
Is this something that has to meet National Electrical Code or some equivalent code?
A ratio of resistivity between copper and the the metal in question should get you pretty close.
I doubt if you will find ampacity tables in AWG for platinum or SS.
RE: Ampacities of platinum and stainless steel
RE: Ampacities of platinum and stainless steel
I'm not concerned about codes. This is simply experimenting for my buddy and I for a weekend project.
RE: Ampacities of platinum and stainless steel
RE: Ampacities of platinum and stainless steel
RE: Ampacities of platinum and stainless steel
Keith Cress
kcress - http://www.flaminsystems.com
RE: Ampacities of platinum and stainless steel
* Women are like the police. They can have all the evidence in the world and yet they still want a confession - Chris Rock *
RE: Ampacities of platinum and stainless steel
Yes, this is going to be one of those "...to the point of ridiculous, aspect of HHO generation is the general race to how-much-how-fast at the complete exclusion of efficiency..." moments, as itsmoked put is so perfectly. This is just a fun experiment. As long as we don't blow up a battery or melt a wire and hurt someone, it is just fun and games. People performing this for use of the HHO need to consider efficiency to be one of their topmost priorities. There are several aspects of efficiency, not just the electrochemical reactions. There is also the cost of manufacturing, availability of materials, weight, power source, overall size of system, etc. It never ends. But, for our weekend project, it is about screaming fast HHO generation. You know, even if it were for use in a generator, automobile, or other, this type of experiment would not be totally unjustified. It has been my experience that more knowledge equals more power and more ability. It certainly never hurts to have a greater understanding of a situation or a greater understanding of all operational limits and extremes. Just some food for thought.
RE: Ampacities of platinum and stainless steel
Will you be switching to copper just outside the bath? If significant portions of these electrodes will be out of the bath, you might have to also consider heat transfer along the length of the electrodes, too.
A lot of this is difficult to calculate and may simply be experimental.
RE: Ampacities of platinum and stainless steel