IS 8447 : 1989 Manually operated voltage regulators for domestic use

1 Scope

1.1 This standard covers manually operated voltage regulators(auto-transformer type) rated up to and including 5 kVA for single-phase operation for use with domestic equipment.

2 References

Lift of Referred Indian Standards

IS 302 :1979General and safety requirements for household and similar electrical appliances

IS 694 :1977PVC insulated cables for working voltages upto and including 1 100 volts

IS 1248 : Part 2 :1983 Direct acting indicating analogueelectrical-measuring instruments and their accessories:Part 2 Ammeters and voltmeters

IS 1271 :1985Thermal evaluation and classification of electrical insulation

IS 1293 :1988Plugs and socket-outlets of 250 volts andrated current up to 16 amperes

IS 1885 : Part 38 :1977 Electrotechnical vocabulary:Part 38 Transformers

IS 2026 : Part 1 :1977 Power transformers :Part 1 General

Part 2 :1977Temperature-rise

Part 4 :1977Terminal markings, tappings and connections

IS 4905 :1968Methods for random sampling

IS 8448 :1989Automatic line voltage correctors (step type)for domestic use

IS 9968 : Part 1 :1988 Elastomer insulated cables :Part 1 For working voltages up to and including1 100 volts

IS 12360 :1988Voltage bands for electrical installationsincluding preferred voltages and frequency