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prEN IEC 63359:2024

Fluids for electrotechnical application: Specifications for the re-use of mixtures of gases alternative to SF6

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10/1248/CDV; prEN IEC 63359:2024
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This document provides the quality of gases alternative to SF6 (subsequently referred to as gases) for their re-use in electrical power equipment after recovery and if applicable reclaiming (e.g., during maintenance, repair, overhaul or at the end-of-life). The re-use criteria consider technical and environmental concerns.
This document covers the same gases as listed in IEC 63360. For gases not mentioned in this document the electrical power equipment manufacturer and/or the gas manufacturer shall provide the information indicated in this document. It is the intention of this document to include such gases in a next edition or in amendments to this edition.
Procedures for recovering and reclaiming of used gases are described in IEC 62271-4:2022.
NOTE 1 Reclaiming procedures of gases can be done by either reclaiming the complete gas or by separating the most valuable components from the gas.
Gas analysis techniques for checking the quality of the gas are described in this document.
It is the responsibility of the gas manufacturer and/or the electrical power equipment manufacturer to provide sufficient information for safe handling of gases and to provide a risk assessment. It is the responsibility of the user of the electrical power equipment to establish appropriate health and safety practices and to determine the applicability of regulatory limitations prior to use.
NOTE 2 If not otherwise specified in this document, concentration values (e.g. %, ppmv, µl/l) of gas components or contaminants are given in volume fraction at 20 °C and 100 kPa. More information on temperature and pressure dependance of mole fraction and volume fraction is given in Annex C of IEC 63360:2024.
NOTE 3 If gases for electrical power equipment are regulated, their designation and regulation origin can be found in the IEC 62474 database [1] (available at https://std.iec.ch/iec62474 [viewed 2023-07-17]).
NOTE 4 Information about storage, transportation and disposal of gases, gas properties, safety and first aid, environmental impact, training and certification, handling equipment, by-products, and procedures to evaluate the potential effects on health are covered by IEC 62271-4:2022.

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