IS 12291 : 1987 Constant current regulators for airport Lighting systems

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