Dependability

Describes methods for the collection and analysis of field failure data of static electricity metering equipment using field failure reports and sampling plans.To make results comparable, definitions of equipment complexity and classification of failures are given. A failure reporting form is provided in annex A. This publication is of high relevance for Smart Grid.

Covers general aspects of the dependability of static metering equipment for electrical energy measurement and load control. This publication is of high relevance for Smart Grid.

IEC 62059-31-1:2008 provides one of several possible methods for estimating product life characteristics by accelerated reliability testing. In this standard, elevated, constant temperature and humidity is applied to achieve acceleration. The method takes into account the effect of voltage and current variation. It is applicable to all types of metering equipment for energy measurement, tariff and load control in the scope of IEC TC 13. The method given in this standard may be used for estimating (with given confidence limits) product life characteristics of such equipment prior to and during serial production. This method may also be used to compare different designs. The contents of the corrigendum of December 2008 have been included in this copy. This publication is of high relevance for Smart Grid.