Abstract
Dust particles from the air in the electrical contact caused more and more problems. To a large extent reduce the reliability of the system. In order to study the impact of these issues, we need to analyze and discuss the dust particles on contact performance of electrical contact materials. In this paper, under static conditions with 150-212μm of the silica particles analyzed and discussed, represented by the pressure difference, particle size, being suppressed will lead to a different location of the static contact resistance and analysis of particle size of the scope of what the content of easily crushed. Experimental results show that the particle size and the location of the different particles are pressed, will make a change in contact resistance, another analysis gives easily be crushed particle size range is 150-300μm.
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