DIN EN 50123-2/A1 Berichtigung 1-1997 DIN EN 50123-1/A1的勘误表
Corrigenda to DIN EN 50123-1/A1 (VDE 0115 Part 300-2/A1):1997-01: Railway applications - Fixed installations; D.C. switchgear - Part 2: D.C. circuit breakers; Amendment A1; German version EN 50123-2:1995/A1:1996