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→Failure Analysis
The full clarification of causes for switching device failures, for example relays, is most important for quality assurance. As a starting point, the full history of the relay, such as electrical load, environmental conditions etc. must be recorded. The process flow chart in (<xr id="fig:Flow diagram for evaluation of failure cause in switching devices for communications technology"/><!--(Fig. 13.10)-->) clearly describes a proven way to conduct a failure analysis.
Following all procedures of such a failure evaluation carefully, the root cause of the defect can most likely be established in order to implement preventive measures limiting future occurrences.
<figure id="fig:Flow diagram for evaluation of failure cause in switching devices for communications technology">
[[File:Flow diagram for evaluation of failure cause in switching devices for communications technology.jpg|rightleft|thumb|Figure 6: Flow diagram for evaluation of failure cause in switching devices for communications technology]]
</figure>
==References==
