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RE: I'll offer something else to consider

My experience is more in commercial/industrial electrical distribution. I see a fair amount of failure due to surface contamination. Carbon arcing on contactors on boilers. Arcing across disconnects used in salt air environments. Things like that. Rather surprising to meg a hunk of plastic and find it is now conductive.

An environmentaly sealed pin and sleeve connected filled with dielectric grease will maintain its rating but might fail well under it if surface contaminants were allowed to enter.

You also need to define/consider if it is hot to ground or phase to phase shorts you are most concerned with. AC or DC is a factor as well as temperature and desired life. IMHO nothing beats dead air space for long term reliability.


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  • RE: I'll offer something else to consider - Russ57 19:24:24 04/19/15 (0)

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