IS 7537 : 1974 Road traffic signals

1 Scope

1.1 This standard specifies requirements for fixed and portableelectric light signal installations operated from mains, generatoror battery supply for controlling road traffic. It also includesreference to operational requirements for the signals and theircontroller.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 736 :1965Specification for wrought aluminium andaluminium alloys, plate (for generalengineering purposes)

IS 1340 :1959Code of practice for protective coating ofzinc base alloys

IS 1554 : Part I :1964 Specification for PVCinsulated (heavy duty)electric cables: Part I For working voltagesup to and including 1 100 volts

IS 1868 :1968Specification for anodic coatings on aluminium

IS 2106 : Part III :1963 Environmental tests for electronicequipment:Part III Cold test

IS 2106 : Part IV :1963 Environmental tests for electronicequipment:Part IV Dry heat test

IS 2208 :1962Specification for HRC cartridge fuse-links upto 65 V

IS 2607 :1967Specification for air-break isolators forvoltages not exceeding 1 000 volts

IS 3043 :1966Code of practice for earthing

IS 3438 :1965Specification for silvered glass mirrors forgeneral purposes