GB/T 32580.2-2026 Railway applications—Fixed installations—High voltage AC switchgear and transformers—Part 2:Disconnectors, earthing switches and switches
GB/T 32580.2-2026 Railway applications—Fixed installations—High voltage AC switchgear and transformers—Part 2:Disconnectors, earthing switches and switches
Basic Information
Scope
This document specifies the normal and special operating conditions, rated values, design and structure, inspection rules, selection guidelines, information provided during inquiry, bidding, and ordering, marking, packaging, transportation, storage, installation, operation, and maintenance rules for high-voltage AC disconnect switches, grounding switches, and load switches used in rail transit. It also describes the test methods for initial testing and type testing. This document applies to AC disconnect switches, grounding switches, and load switches operating at a frequency of 50 Hz and rated voltages of 27.5 kV, 2×27.5 kV, and 55 kV. This document also applies to the operating mechanisms and auxiliary equipment of disconnect switches, grounding switches, and load switches, as well as the control devices for overhead electric disconnect switches.