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→13.3.5 Testing Technology
These requirements lead to the need to simulate the real life loads through electronically controlled load circuits. Such computerized electronic load circuit simulations easily allow the test sequences to be controlled and monitored:
<figure id="fig:Automotive relays under motor load">Fig. 13[[File:Automotive relays under motor load.9:jpg|right|thumb|Automotive relays under motor load: Results ofelectrical life testing using different contactmaterials]]</figure>
* Time saving test runs for lamp loads by reducing interval times Monitoring of each switching operation for electrical life criteria Allowing to recognize non separation of the contacts after a pre-set time limit to be classified as a relay fallure
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 AgNiO. 15 was found to be the best suited contact material.
===13.3.6 Failure Analysis===
