IS 12291 : 1987 Constant current regulators for airport Lighting systems
UDC 621.316.721 : 628.971.8 : 656.71 | ETD 23 |
|
Reaffirmed 2018 |
1 Scope
1.1 This specification covers the requirements for constantcurrent regulators for use in airport series lighting circuits.
2 References
IS 2 :1960Rules for rounding off numerical values
IS 2026 : Part 2 :1977 Specification for power transformer:Part 2 Temperature-rise
IS 2147 :1962Degress of protection provided by enclosuresfor low-voltage switchgear and control gear
IS 12290 :1987Specification for isolating transformers for airport lighting systems