BS EN 61710 specifies procedures to estimate the parameters of the power-law model, to provide confidence intervals for the failure intensity, to provide prediction intervals for the times to future failures, and to test the goodness-of-fit of the power-law model to data from repairable items. It is assumed that the time to failure data have been collected from an item, or some identical items operating under the same conditions (e.g., environment and load).
BS EN 61710 on the goodness of fit tests and estimation methods is useful for:
There are various models for describing the reliability of repairable items, the power-law model being one of the most widely used.
BS EN 61710 describes the power-law model and gives step-by-step directions for its use. BS EN 61710 provides procedures to estimate the parameters of the power-law model and to test the goodness-of-fit of the power-law model to data, to provide confidence intervals for the failure intensity and prediction intervals for the length of time to future failures.
Some of the procedures can require computer programs, but these are not unduly complex.
In conclusion, BS EN 61710 presents algorithms from which computer programs should be easy to construct.
EN 61710:2013
IEC 61710:2013