SIST EN 60360:1999

SLOVENSKI STANDARD
SIST EN 60360:1999
01-julij-1999
1DGRPHãþD
SIST EN 60360:2000/A1:2000
SIST EN 60360:2000/A2:2000
Standardna metoda za merjenje porasta temperature na vznožku žarnice ali sijalke
(IEC 60360:1998)
Standard method of measurement of lamp cap temperature rise
Standardverfahren zur Messung der Lampensockel-Übertemperatur
Méthode normalisée de mesure de l'échauffement d'un culot de lampe
Ta slovenski standard je istoveten z: EN 60360:1998
ICS:
29.140.10 Grla in držala žarnic Lamp caps and holders
SIST EN 60360:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60360:1999

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SIST EN 60360:1999

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SIST EN 60360:1999

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SIST EN 60360:1999

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SIST EN 60360:1999

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SIST EN 60360:1999
NORME
CEI
INTERNATIONALE
IEC
60360
INTERNATIONAL
Troisième édition
STANDARD
Third edition
1998-06
Méthode normalisée de mesure de l’échauffement
d’un culot de lampe
Standard method of measurement
of lamp cap temperature rise
 IEC 1998 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
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procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
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For price, see current catalogue

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SIST EN 60360:1999
60360 © IEC:1998 – 3 –
CONTENTS
Page
FOREWORD . 5
INTRODUCTION . 7
Clause
1 General. 9
1.1 Scope. 9
1.2 Normative reference. 9
2 Definitions. 9
3 General conditions for measurements . 9
4 Test requirements. 11
5 Test lampholders. 13
6 Supply conductors. 15
7 Thermocouple. 15
8 Assembly of the lamp and test lampholder in the enclosure . 17
9 Measurement of temperature rise. 19
Figures . 21-35

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SIST EN 60360:1999
60360 © IEC:1998 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
STANDARD METHOD OF MEASUREMENT
OF LAMP CAP TEMPERATURE RISE
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60360 has been prepared by subcommittee 34A: Lamps, of IEC
technical committee 34: Lamps and related equipment.
This third edition cancels and replaces the second edition published in 1987, amendment 1
(1993) and amendment 2 (1996), and constitutes a technical revision.
The text of this standard is based on the second edition, amendments 1 and 2 and the
following documents:
FDIS Report on voting
34A/814/FDIS 34A/828/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
In this standard, the following print types are used:
– requirements proper: in roman type;
– test specifications: in italic type;
– explanatory matter: in smaller roman type.
The contents of the corrigendum of March 1999 have been included in this copy.

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SIST EN 60360:1999
60360 © IEC:1998 – 7 –
INTRODUCTION
The temperature rise of the lamp cap is, in practice, very dependent on the mounting of the
lamp and the condition of the cap. For this reason, it has been necessary to define a method of
measurement based on the use of a standard test lampholder. The temperature rise Δt
s
measured on the standard test lampholder is taken as the lamp cap temperature rise for the
purpose of this standard.
Compared with the measurement of the temperature rise of the bare lamp cap, the measure-
ment of the temperature rise of a standard test lampholder has the following advantages:
– a better approximation to actual operating conditions;
– improved reproducibility, as there is less influence from lamp cap material, finish and
surface conditions (which also have little influence on actual operating conditions);
– levelling (or averaging) of the temperatures of various parts of the cap, giving a better
overall picture of the heat transferred from the lamp to the luminaire;
– reduced duration of measurements, as the thermocouple is fixed permanently to the test
lampholder.

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SIST EN 60360:1999
60360 © IEC:1998 – 9 –
STANDARD METHOD OF MEASUREMENT
OF LAMP CAP TEMPERATURE RISE
1 General
1.1 Scope
This International Sandard 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,
listed 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
for 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 the possibility of applying
the most recent edition of the normative document indicated below. Members of IEC and ISO
maintain registers of currently valid International Standards.
IEC 60432: Safety specification for incandescent lamps
2 Definitions
For the purposes of this International Sandard, the following definitions apply:
2.1
temperature rise 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 )
m
steady-state temperature of a standard test lampholder reached after a sufficient lamp
operating time
NOTE – The measuring accuracy should be ±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.

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SIST EN 60360:1999
60360 © IEC:1998 – 11 –
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 (t ) within the range of 15 °C to
amb
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 Δt measured shall be
m
converted to a temperature rise relevant to an ambient of 25 °C in accordance with the
following formula:
1/2
Δt
 
m
Δt = Δt + 1/3(t −25)
 
25 m amb
100
 
where
Δt is the temperature rise corrected to 25 °C;
25
Δt is the difference between the final equilibrium temperature and the ambient temperature,
m
t – t ;
m amb
t is the ambient temperature.
amb
NOTE – The above formula is valid for any ambient temperature between 15 °C and 40 °C.
4 Test requirements
Temperature measurements shall be made in a draught-free test enclosure.
4.1 Test enclosure
The draught-proof enclosure is rectangular, with a double skin on the top and on at least three
sides, and with a solid base. The double skins are of perforated metal, spaced apart
approximately 150 mm, with regular perforations of 1 mm to 2 mm diameter, occupying about
40 % of the whole area of each skin.
The internal surfaces are painted with a matt paint.
The dimensions of the enclosure shall be such that the ambient temperature within the test
enclosure will not exceed 40 °C while the test is being run. To achieve this condition, the three
principal internal dimensions shall be preferably at least 900 mm. There should be a clearance
of at least 200 mm between any part of the lamp and the inside of the enclosure. Alternative
constructions for draught-proof enclosures are suitable if it is established that similar test
results are obtained.

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SIST EN 60360:1999
60360 © IEC:1998 – 13 –
NOTE – For production surveillance conditions, a smaller enclosure of 500 mm × 500 mm × 500 mm may be used,
providing the internal ambient temperature does not exceed 40 °C during temperature measurement, the lamp being
mounted in the centre of the enclosure.
The internal ambient temperature shall be measured with a thermometer screened from direct
radiation from the test lamp. The thermometer is to be placed level with the lamp about
...