Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 660 V. Part 1: General - Performance, testing and rating - Safety requirements - Guide for installation and operation.

This document establishes the foundational requirements for self-resetting bypass capacitors designed for AC voltages not exceeding 660 volts. The text outlines comprehensive performance criteria and defines specific rating values essential for component functionality and interchangeability. It details a rigorous testing protocol intended to verify operational reliability under defined electrical stresses and environmental conditions. Furthermore, the content specifies safety provisions aimed at preventing hazards during normal operation and in the event of malfunction. Guidelines for proper installation procedures and ongoing operational practices are included to ensure system integrity and longevity. These provisions cover necessary aspects of physical construction and electrical characteristics. The material serves as a reference for manufacturers and users regarding the design, evaluation, and application of such components within low-voltage electrical networks. It addresses key parameters that influence compatibility and performance consistency across different production batches. The scope encompasses both the technical specifications and the practical measures required for safe integration into electrical circuits.