evaluate the impact on electrical stability of the contact system when
exposed to any environment which may generate thermal/moisture type
failure mechanisms such as:
- Fretting corrosion due
to wear resulting from micromotion. Thermal cycling induces micromotion
between contacting surfaces and humidity accelerates the oxidation
- Fretting corrosion of
non-noble finish systems.
- Oxidation of wear
debris which may have become entrapped between the contacting surfaces
due to induced micromotion.
- Oxidation of
particulates which may have been deposited on or entrapped between the
contacting surfaces from the surrounding atmosphere via
the wet oxidation process, detect loss of electrical stability due to
particulates which may be deposited on contacting surfaces, wear which
may expose base metal or underplates of contacting surfaces, and
oxidation on non-noble finish systems.
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Typical test plans