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Switching Contacts

21 bytes added, 10:32, 9 January 2023
Switching Contacts
===<!--6.4.4-->Switching Contacts===
<ul>
<li>'''Effects during switching operations'''</li>
<div class="multiple-images">
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<li>'''Influence of out-gasing from plastics'''</li>
<div class="multiple-images">
<li>'''Influence of corrosive gases on the contact resistance'''</li>
[[File:Distribution of cumulative frequency H of the contact resistance for solid contact rivets.jpg|left|thumb|<caption>Distribution of cumulative frequency H of the contact resistance for solid contact rivets after 10 days exposure in a three-component test environment with 400 ppb each of H<sub>2</sub>S, SO<sub>2</sub> and NO<sub>2</sub> at 25°C, 75% RH; Contact force 10cN; Measuring parameters: ≤ 40 mV<sub>DC</sub>,10 mA; Probing
contact: Gold rivet</caption>]]
</figure>
<figure id="fig:Influences on contact areas in relays">
[[File:Influences on contact areas in relays.jpg|right|thumb|<caption>Influences on contact areas in relays</caption>]]
</figure>
</div>
[[File:Influences on contact areas in relays.jpg|right|thumb|Influences on contact areas in relays]] <li>'''Contact Phenomena under the influence of arcing Matertia'''</li>
<ul>
<li>'''Material transfer'''</li>
<div class="multiple-images"><figure id="fig:Material transfer under DC load">[[File:Material transfer under DC load.jpg|left|thumb|<caption>Material transfer under DC load a) Cathode; b) Anode. <br /> Material: AgNi0.15; Switching parameters: 12V<sub>DC</sub>, 3 A, 2x10<sup>6</sup> perations</caption>]]</figure></div>
<div class="clear"></div>
<li>'''Arc erosion'''</li>
<div class="multiple-images"><figure id="fig:Arc erosion of a AgSnO2 contact pair after extreme arcing conditions">[[File:Arc erosion of a AgSnO2 contact pair after extreme arcing conditions.jpg|left|thumb|<caption>Arc erosion of a Ag/SnO<sub>2</sub> contact pair after extreme arcing conditions a) Overall view; b) Partial detail view</caption>]]</figure></div>
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<li>'''Contact welding'''</li>
<div class="multiple-images">