IEC 60360:1998 pdf download – Standard method of measurement of lamp cap temperature rise

IEC 60360:1998 pdf download – Standard method of measurement of lamp cap temperature rise.
IEC 60360 describes the standard method of measurement of lamp cap temperature rise which is to be used when testing incandescent or discharge lamps for compliance with the limits. Temperature-rise limits for particular lamp types are, for example, hsted In IEC 60432.
It covers the method of test and the specifications for test lampholders for lamps fitted with various sizes of Edison screw (ES) and Bayonet (BC) caps. This method has been used widely or incandescent lamps but its application iS not limited to that kind of lamp,
1.2 NormatIve reference
The following normative document contains provisions which, through reference in this text. constitutes provisions of this International Standard, At the time of publication, the edition indicated was valid. All normative documents are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate (he possibility of applyrng the most recent edition of the normative document indicated below. Members of lEG and ISO maintain registers of currently valid International Standards.
IEC 60432: Safety specification to,’ incandescent lamps
2 Definitions
For the purposes of this International Sandard, the following definitions apply:
temp.ratur. ris, of cap
surface temperature rise of a standard test lampholder fitted to the lamp cap, when measured under conditions specified In this standard
2.2
equilibrium temperature (t.,)
steady.stale temperature of a standard test lampholder reached after a sufficient lamp operating time
NOTE — The meawnng accuracy should b. *1 •C
3 General conditions for measurements
3.1 AgeIng and stabIlizing
For these measurements, no previous ageing of the lamp is required. Sufficient stability of the lamp is achieved during the time necessary to reach the equilibrium temperature in the test enclosure.
3.2 Supply voltage
a) For lamps intended to be connected directly to the supply, measurement shall be made at rated voltage, the supply voltage being maintained constant within ±0,5 %.
b) For lamps intended to be connected to the supply through a ballast, measurements shall be made at the rated voltage of the ballast, the supply voltage being maintained constant within ±0,5 %. Measurements shall be made using a reference ballast or a production ballast which at the calibration current has an impedance within ±1 % of the reference ballast.
If the lamp is marked with a voltage range the test procedure of IEC 60432 shall apply, unless a different procedure is called for in another publication.
3.3 Ambient and reference temperatures
The reference temperature for defining cap temperature rise is 25 °C. However, it is possible for the measurements to be made at an ambient temperature (famb) within the range of 15 °C to 40 °C unless otherwise specified in the relevant lamp data sheet; that is, the temperature within the test enclosure, during the measurement cycle, shall remain within this range for the results to be meaningful. A special test enclosure, described in 4.1, is used to maintain the ambient temperature at a sufficiently constant value.
If the temperature in the test enclosure differs from 25 °C. the value Mm measured shall be converted to a temperature rise relevant to an ambient of 25 °C in accordance with the following formula.