IS 13383 : Part 1 : 1992 Photometry of Luminaires - Method of Measurement - Part 1 : Luminaires for Use in Interior Lighting

1 Scope

1.1 This standard covers methods of photometry for luminairesdesigned primarily for indoor use with lamps specified in Annex Afor general lighting service and suitable for ac electricity supplyup to 250 V at 50 Hz.

1.2 The requirements described in these recommendations relateto This photometric characteristics:

a) Distribution of luminous intensity in specified planes ordirections, per 1000 lamp lumens (see definition 3.4),

b) Luminaire zonal flux per 1000 lamp lumens, and

c) Light output ratio.

2 References

List of IS specification on lamps of the types, ratings,dimensions and colours for which this standard on methods of`Photometry of Luminaires intended for use of Interior Lighting'apply.

IS 418 :1978Specification for tungsten filamentgeneral service electric lamps

IS 2418 : Part 1 to 4 :1977 Specification for tubular fluorescentlampsfor general lighting service

IS 9900 : Part 1 to 4 :1981 Specification for high pressure mercuryvapour lamps

IS 9974 : Part 1 to 2 :1981 Specification for high pressure sodiumvapour lamps

IS 12998 :1990Specification for tungsten halogen lamps(non-vehicle)