1 Scope
This part of IEC 62271
applies to the procedures for handling of gases for insulation and/or switching during
installation, commissioning, repair, overhaul, normal and abnormal operations and
disposal at the end-of-life of electric power equipment.
These procedures are regarded as minimum requirements to ensure the reliability of
electric power equipment, the safety of personnel working with these gases and to
minimize the impact on the environment. Additional requirements could be given or
specified in the operating instruction manual of the manufacturer.
For each gas, which is known to be used in electric power equipment at the date of
the publication of this document, a separate annex describes specifications, handling
procedures, safety measures, etc. For gases not covered by these annexes the electric
power equipment manufacturer should provide the information needed, following the
structure of these annexes. Such gases should also be described in a next edition
or in amendments to this edition.
NOTE 1 For the use of this document, high-voltage (HV) is defined as the rated voltage above
1 000 V. However, the term medium-voltage (MV) is commonly used for distribution systems
with voltages above 1 kV and generally applied up to and including 52 kV.
NOTE 2 Throughout this document, the term “pressure” stands for “absolute pressure”.
NOTE 3 In this document, pe...
BS EN IEC 62271-4:2022 history
2022BS EN IEC 62271-4:2022 High-voltage switchgear and controlgear - Part 4: Handling procedures for gases for insulation and/or switching