IS 8969 : 1978 Code of practice for installation and maintenance of impulse and electronic master and slave electric clock systems

1 Scope

1.1 This standard covers installation and maintenance ofelectric clock system of both electronic and impulse type.

1.2 Time recording equipment and audible time system areexcluded from the scope of this code.

Note 1 - The expression electric clock system here denotes asystem controlled from a central source forming part of the system.

Note 2 - It does not fall within the scope of this code to makerecommendation in details regarding the type or design of thevarious appliances that form the principal components ofimpulse/electronic clock systems nor does it fall within the scopeof this code to make recommendations regarding the standard ofperformance of such equipment.

2 References

IS 732 : 1963Code of practice for electrical wiring installations(system voltage not exceeding 650 volts)

IS 3043 : 1966 Codeof practice for earthing

IS 5160 : 1969 Specification for mains-operatedsynchronous clocks