IEC 61167:2011 specifies the performance requirements for metal halide lamps for general lighting purposes. This second edition replaces the first edition published in 1992 and its Amendments 1 (1995), 2 (1997) and 3 (1998). This second edition constitutes a technical revision. Compared to the 1st edition, measurement methods for electrical and photometric parameters are included and safety related requirements are deleted as far as they are now covered by IEC 62035. Modern kind of ignition (e.g. aggregated pulse widths) and operation (low frequency square wave) is added with extensive description of methods of calculation for peak current ratio. At the same time, a review was made on lamps in the market which are fit for standardising, leading to a big number of new lamp data sheets in the range of 20 W up to 250 W lamp power.
IEC 61167:2015 specifies the performance requirements for metal halide lamps for general lighting purposes. This third edition replaces the second edition published in 2011. This third edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition. a) A set of new lamp data sheets (20 W, 35 W, 50 W, 100 W) is introduced. b) Reference to ILCOS (International lamp coding system) is removed from the lamp data sheets and now located in a new annex. c) Information on outer bulb temperature (and in some cases also on pin temperature and temperature adjacent to cap) is replaced with an explanation on differences in manufacturers' construction; this explanation is given in detail in a new annex.
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