METAL THERMAL EXPANSION CHART
Please allow this to run-it's-course. Then I can say I tried my best. ALUMINUM / COPPER / STEEL (set screw). This is what I have been yelling about... Metal Temperature Range (oF) Thermal Expans...
Forum Discussion
MEXICOWANDERER wrote:So the moral of the story is to use Al set screws in an Al buss bar or retighten the steel set screws periodically because of steel is half of the thermal expansion of Al.
Put Larry Curley and Moe in the same sack and near pandemonium reins.
Replacing steel set screws with phosphor bronze would make sense, but the price wouldn't.
On a hot summer day when thousands of air conditioners are working look at the sag of high voltage transmission lines between towers. Some of those conductors reach near 300F in open air. Expansion at work. Aluminum must be respected because it expands so much. I do not like electrical (or any other type of) RV fires!
