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Changes
→Testing Technology
*Signal Relays (Low Current Relays)
The DC load conditions are specified in the relevant standards (for ex. Telecom Specifications).
*Switching of “dry circuits” with monitoring of the contact resistance, in some cases at elevated temperatures
Results of relay life testing using different contact materials are illustrated as an example in <xr id="fig:Automotive relays under motor load"/><!--(Fig. 13.9)-->. For each contact material, 10 relays were tested under the prescribed motor load until a failure due to non-opening was detected. For this specific load condition AgNiO15 was found to be the best suited contact material.
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<figure id="fig:Principle and sequence of testing with electronic load simulation">
[[File:Principle and sequence of testing with electronic load simulation.jpg|right|thumb|Figure 4: Principle and sequence of testing with electronic load simulation]]
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<figure id="fig:Automotive relays under motor load">
[[File:Automotive relays under motor load.jpg|right|thumb|Figure 5: Automotive relays under motor load: Results of electrical life testing using different contact materials]]
</figure>
</div>
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===<!--13.3.6-->Failure Analysis===
