IS 996 : 2009 Single Phase a.c. Induction Motors for General Purpose

ICS 29.160.30 ETD 15
Reaffirmed 2019

1 Scope

1.1 This standard covers single phase ac induction motorsof the capacitor types for voltages upto and including250 V and having windings with Class A, Class E, ClassB, Class F or Class H insulation (see IS 1271 : 1985Thermal evaluation and classification of electricalinsulation) and output upto and including 2 200 W).

1.2 Motors for use on systems complying to voltagesand frequencies other than preferred (see 4) shall beconsidered as complying with this standard providedthey comply in all other respects. The voltages andfrequency for which they are designed shall be statedon the rating plate.

2 References

The list of standards given in Annex A are necessaryadjunct to this standard.

IS No. Title
IS 302 : 1979 Specification for general and safety requirements for household and similar electrical applications (fifth revision)
IS 900 : 1992 Code of practice for installation and maintenance of induction motors(first revision)
IS 996 : 1979 Single-phase small ac and universal electric motors
IS 1231 : 1974 Dimensions of three-phase foot-mounted induction motors(third revision)
IS 1271 : 1985 Thermal evaluation and classification of electrical insulation (first revision)
IS 1391 : 1992 Room air conditioners (first revision)
IS 1475 : 1978 Self-contained drinking water coolers (second revision)
IS 1885 Electrotechnical vocabulary:
IS Part 1 : 1961 Fundamental definitions
IS Part 35 : 1993 Rotating machines
IS 2223 : 1983 Dimensions of flange mounted ac induction motors (first revision)
IS 2253 : 1974 Designation for types of construction and mounting arrangement of rotating electrical machines (first revision)
IS 2993 : 1998 a.c. motor capacitors (second revision)
IS 3315 : 1994 Evaporative air coolers (desert coolers) (first revision)
IS 4691 : 1985 Degrees of protection provided by enclosure for rotating electrical machinery (first revision)
IS 4728 : 1975 Terminal marking and direction of rotation for rotating electrical machinery (first revision)
IS 4905 : 1968 Methods for random sampling
IS 6362 : 1995 Designation of methods of cooling of rotating electrical machines
IS 7572 : 1984 Guide for testing single phase ac and universal motors
IS 8148 : 2003 Packaged air conditioners
9000 : Part 5 : Sec 1 and 2 : 1981 Basic environmental testing procedures for electronic and electrical items - Part 5: Damp heat (cyclic) test
IS 9572 : Part 1 : 1980 Single phase electric motors for definite purposes: Part 1 Domestic laundry machines motors
IS 12075 : 1987 Mechanical vibration of rotating electrical machine with shaft height 56 mm and higher - measurement, evaluationandlirnitsofvibrationseverity
IS 12060 : 1987 Specification for voltages and frequency for ac transmission and distribution systems
IS 12802 : 1989 Temperature rise measurement of rotating electrical machines