CENELEC EN 50123-3 Railway applications – Fixed installations – D.C. switchgear Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches - Incorporates Amendment A1: 2013
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European Committee for Electrotechnical Standardization
Railway applications – Fixed installations – D.C. switchgear Part 3: Indoor d.c. disconnectors, switch-disconnectors and earthing switches - Incorporates Amendment A1: 2013
N EN 50123-3
Annotation
This part of EN 50123 specifies requirements for d.c. disconnectors, switch-disconnectors and earthing switches for use in indoor fixed installations of traction systems.
NOTE 1 Switchgear assemblies, electromagnetic compatibility (EMC) and dependability are not covered in this part of EN 50123, but rather by other parts of this standard or other documents as indicated in EN 50123-1.
NOTE 2 In this standard the word "unit" means "disconnector and/or switch-disconnector and/or earthing switch" as defined in 3.1.4, 3.1.5 and 3.1.6 of EN 50123-1.
NOTE 3 Disconnectors, switch-disconnectors and earthing switches may have electrically latched mechanisms and, in such cases, may be indicated with the current term of "power contactors".
Автоматический перевод:
Железнодорожные заявления – Фиксированные установки – Часть 3 коммутационной аппаратуры округа Колумбия: Внутренние d.c. разъединители, разъединители переключателя и земляные переключатели - Включают Поправку A1: 2013
Эта часть EN 50123 определяет требования для d.c. разъединителей, разъединителей переключателя и земляных переключателей для использования во внутренних фиксированных установках систем тяги.
