IS 12290 : 1987 Isolating transformers for airport lighting

1 Scope

1.1 This specification covers the requirements for seriesisolating transformers for use in airport lighting systems.

2 References

IS 2 : 1960Rules for rounding off numerical values

IS 2026 : Part 2 :1977 Methods for random sampling

IS 9968 : Part 1 :1981 Specification for elastomer insulatedcables: Part 1For working voltages up to and including1 000 volts

IS 9968 : Part 2 :1981 Specification for elastomer insulatedcables:Part 2 For working voltages from 3.3 kV up toand including 11 kV