Railway applications. Fixed installations. D.C. switchgear - Outdoor d.c. disconnectors, switch-disconnectors and earthing switches

Railway applications. Fixed installations. D.C. switchgear - Outdoor d.c. disconnectors, switch-disconnectors and earthing switches

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1   Scope

This part of EN 50123 specifies requirements for outdoor d.c. switch-disconnectors, disconnectors and earthing switches for use in outdoor fixed installations of traction systems.

NOTE 1 EN 50121‑5 specifies requirements for electromagnetic compatibility (EMC).

NOTE 2 In this document the word "unit" means "switch-disconnector and/or disconnector and/or earthing switch" as defined in 3.1.4, 3.1.5 and 3.1.6 of EN 50123‑1.