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Standards Development
This document specifies the product safety requirements for measuring relays and protection equipment having a rated AC voltage up to 1 000 V, or a rated DC voltage up to 1 500 V. This document specifies essential safety requirements to minimize the risk of fire and hazards caused by electric shock or injury to the user and property. This document specifies only product safety requirements; functional performance of the equipment is not covered. This document covers all the ways in which the equipment can be mounted and used in cabinets, racks and panels. This document also applies to auxiliary devices such as shunts, series resistors, transformers, auxiliary control panels, display devices, etc., that are used in conjunction with measuring relays and protection equipment and are tested together.
In accordance with TC95X/Sec007/CIV, the members have approved the creation of an amendment to project 67591 - FprEN IEC 60255-27:2022. This amendment aims to: - Incorporate the ongoing IEC amendment for IEC 60255-27:2023. - Address the feedback received from the HAS assessment on FprEN IEC 60255-27:2022. The primary objective is to publish the standard EN IEC 60255-26:2025 / A11 as a harmonised standard in compliance with the European Directive 2014/35/EU.
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