IS 418 : 2004 Tungsten Filament Lamps for Domestic and Similar General Lighting Purposes

1 Scope

1.1 This standard applies to tungsten filament incandescent lamps forgeneral lighting service (GLS) which comply with the safety requirementsin Doc ET 23 (5291) and having:

      - rated wattage of 15 W, 25 W, 40 W, 60 W, 100 W, 150 W and 200 W;

      - rated voltage 110 V, 230 V, 240 V and 250 V, including marked voltagerange not exceeding &plusmin;2.5 percent of the mean voltage (see Note 1).

      - bulbs of the A, K, M or PS shapes (see IS 14897 for glass bulbdesignation);

      - bulbs with clear, frosted or equivalently coated finishes, or whitefinishes.

      - caps B22d or E27.

The shell diameter of lamps shall be from 54 to 62 mn for ratings upto 100 W.

Specific lamp types are covered in Annex G.

This standard states the performance requirements for lamps, includingtest methods and means of confirming compliance with the requirements.Whole production appraisal methods regarding a lamp manufacturers testrecord on finished products are defined. This method can be applied forcertification purposes. Details of a batch test procedure, which can beused to make an assessment of specific batches, are included, but it isnot suitable for certification purposes.

Note 1 - In the process of changing to 230 V nominal supply voltage; arange of &plusmin;3.5 percent shall apply temporarily.

Note 2 - Nomenclature for bulbs used as envelope for lamps specified inthis standard are given in IS 14897.

2 References

IS 14897 : 2000 Glass bulb designation system for lamps - Guide

DOC ET 23 (5291) Safety requirements for tungsten filament incandescent lamps for domestic and similar general lighting purposes (under print)