BS EN IEC 62271-202:2022
High-voltage switchgear and controlgear. AC prefabricated substations for rated voltages above 1 kV and up to and including 52 kV

Standard No.

BS EN IEC 62271-202:2022

Release Date

2022

Published By

British Standards Institution (BSI)

Latest

BS EN IEC 62271-202:2022

Scope

1   Scope This part of IEC 62271 specifies the service conditions, rated characteristics, general structural requirements and test methods of enclosed high-voltage prefabricated substations . These prefabricated substations are cable-connected to AC high-voltage networks with an operating voltage up to and including 52 kV and power frequencies up to and including 60 Hz. They can be manually operated from inside (walk-in type) or from outside (non-walk-in type). They are designed for outdoor installation at locations with public accessibility and where protection of personnel is provided. These prefabricated substations can be situated at ground level or partially or completely below ground level. The last are also called "underground prefabricated substations ". In general, two types of prefabricated substations are considered in this document: – high-voltage switchgear prefabricated substations ; – high-voltage/low-voltage transformer prefabricated substations (step-up and step-down). A high-voltage switchgear prefabricated substation comprises an enclosure containing in general the following electrical components:

BS EN IEC 62271-202:2022 Referenced Document

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• ISO 6508-1:2016 Metallic materials - Rockwell hardness test - Part 1: Test method

BS EN IEC 62271-202:2022 history

• 2022 BS EN IEC 62271-202:2022 High-voltage switchgear and controlgear. AC prefabricated substations for rated voltages above 1 kV and up to and including 52 kV