DS/EN 61050:1994 Transformers for tubular discharge lamps having a no-load output voltage exceeding 1000 V (generally called neon-transformers) - General and safety requirements
1996DS/EN 61050+A1:1996 Transformers for tubular discharge lamps having a no-load output voltage exceeding 1000 V (generally called neon-transformers) - General and safety requirements
1994DS/EN 61050:1994 Transformers for tubular discharge lamps having a no-load output voltage exceeding 1000 V (generally called neon-transformers) - General and safety requirements