Testing of Electrical Power System Components: What Factors Determine How Much and How Often?

Almost all modern (and not so modern) electrical power systems have the same issue: how often should I test the critical components to assure continued serviceability and/or to assess remaining service life? While this question has many facets that need to be considered, this article looks at ten critical factors that come into play when trying to make informed judgments on this very critical aspect of electrical power system reliability.