Transformers for tubular discharge lamps having a no-load output voltage exceeding 1000 kV (generally called neon-transformers); general and safety requirements
Applies to independent and built-in single-phase transformers with separate input and output windings, for use on a.c. supply up to 1 000 V at 50 Hz or 60 Hz, intended to supply lamps having a no-load rated output voltage not exceeding 10 000 V.