Module grounding revisited [RE-wrenches]

[Ron Schroeder]

Question:
?Is anodizing a barrier to conductance?

Answer:
Yes, absolutely.  Anodizing is aluminum oxide.  Aluminum oxide is 
sapphire.  Sapphire is one of the best insulators known.  At my "day 
job", we often use 2 anodized aluminum surfaces (with smooth edges)to 
stand off several thousand volts.  You must brake thru the anodizing to 
get conduction.

Ron Schroeder
Brookhaven National Lab
Energy Efficiency Systems
Long Island NY

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