Online Standards Store PDF
D.c. supplied electronic ballasts for tubular fluorescent lamps. General and safety requirements
Document status: Cancelled
Electrical installations of buildings. Part 4. Protection for safety. Protection against thermal effects
Document status: Active
Single-capped fluorescent lamps. Performance requirements
Document status: Active
Electrical equipment and installations for a.c. voltage 3 kV and higher. General methods of dielectric tests
Document status: Active
Contact line for railway. Technical requirements and control methods
Document status: Active
