The “burn-in” test involves exercising system components prior to being placed in service, often prior to full system assembly. The testing process forces certain failures to occur under controlled and supervised conditions to establish an understanding of load capacity of the product. There is a portion of failures occurring early in the life of a set of components; burn-in helps to detect these. For sufficiently long (and, perhaps, artificially stressful) burn-in periods, the system can then be trusted to be largely free of additional early failures occurring after the burn-in process has been completed. Replacing weak components that fail during burn-in may help prevent premature system failure, infant mortality failure, or other latent defects. See the standard documentation for more information on test requirements, conditions, and procedures related to your application.
