SIST EN 60432-1:2000

SLOVENSKI STANDARD
SIST EN 60432-1:2000
01-junij-2000
1DGRPHãþD
SIST EN 60432-1:1995
SIST EN 60432-1:1995/A1:1999
SIST EN 60432-1:1995/A2:1999
Sijalke - Varnostne specifikacije - 1. del: Sijalke za uporabo v stanovanjih in
podobnih primerih splošne razsvetljave (IEC 60432-1:1999, spremenjen)
Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for
domestic and similar general lighting purposes
Glühlampen - Sicherheitsanforderungen - Teil 1: Glühlampen für den Hausgebrauch und
ähnliche allgemeine Beleuchtungszwecke
Lampes à incandescence - Prescriptions de sécurité - Partie 1: Lampes à filament de
tungstène pour usage domestique et éclairage général similaire
Ta slovenski standard je istoveten z: EN 60432-1:2000
ICS:
29.140.20 Žarnice z žarilno nitko Incandescent lamps
SIST EN 60432-1:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 60432-1:2000

---------------------- Page: 2 ----------------------

SIST EN 60432-1:2000

---------------------- Page: 3 ----------------------

SIST EN 60432-1:2000

---------------------- Page: 4 ----------------------

SIST EN 60432-1:2000

---------------------- Page: 5 ----------------------

SIST EN 60432-1:2000

---------------------- Page: 6 ----------------------

SIST EN 60432-1:2000
NORME CEI
INTERNATIONALE IEC
60432-1
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1999-08
Lampes à incandescence –
Prescriptions de sécurité –
Partie 1:
Lampes à filament de tungstène pour usage
domestique et éclairage général similaire
Incandescent lamps –
Safety specifications –
Part 1:
Tungsten filament lamps for domestic and
similar general lighting purposes
 IEC 1999 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
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photo-copie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
X
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

---------------------- Page: 7 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 3 –
CONTENTS
Page
FOREWORD . 5
Clause
1 General.7
1.1 Scope.7
1.2 Normative references.9
1.3 Definitions.9
2 Requirements.13
2.1 General.13
2.2 Marking.13
2.3 Protection against accidental contact in screw lampholders . 15
2.4 Lamp cap temperature rise (Δt ). 17
s
2.5 Resistance to torque . 17
2.6 Insulation resistance of B15d, B22d, E26/50×39 and E27/51×39 capped lamps
and other lamps having insulated skirts . 21
2.7 Accidentally live parts. 23
2.8 Creepage distances for B15d and B22d capped lamps . 23
2.9 Safety at end of life . 23
2.10 Interchangeability.25
2.11 Information for luminaire design . 25
3 Assessment.27
3.1 General.27
3.2 Whole production assessment by means of the manufacturer’s records . 27
3.3 Assessment of the manufacturer’s records of particular tests. 29
3.4 Rejection conditions of batches . 31
3.5 Sampling procedures for whole production testing . 31
3.6 Sampling procedures for batch testing. 35
Annex A (normative) Miscellaneous test procedures . 37
Annex B (normative) Packaging marking symbols . 39
Annex C (normative) Resistance to torque test procedures . 41
Annex D (normative) Induced-failure test . 47
Annex E (normative) Operation-to-failure test . 53
Annex F (normative) Acceptance numbers for various sample sizes and AQLs . 57
Annex G (normative) Acceptance criteria – Continuously variable results . 69
Annex H (normative) Induced-failure test – Grouping, sampling and compliance . 73
Annex J (normative) Method of measuring mains impedance . 79
Annex K (informative) Information for luminaire design. 83

---------------------- Page: 8 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INCANDESCENT LAMPS –
SAFETY SPECIFICATIONS –
Part 1: Tungsten filament lamps for domestic and
similar general lighting purposes
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 60432-1 has been prepared by subcommittee 34A: Lamps, of IEC
technical committee 34: Lamps and related equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
34A/873/FDIS 34A/887/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
This second edition cancels and replaces the first edition of IEC 60432-1, published in 1993, its
Amendment 1 (1995) and Amendment 2 (1997). It constitutes a technical revision.
Annexes A through J form an integral part of this standard.
Annex K is for information only.
The committee has decided that this publication remains valid until 2003-09.
At this date, in accordance with the committee’s decision, the publication will be
• reconfirmed:
• withdrawn;
• replaced by a revised edition, or
• amended.

---------------------- Page: 9 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 7 –
INCANDESCENT LAMPS –
SAFETY SPECIFICATIONS –
Part 1: Tungsten filament lamps for domestic and
similar general lighting purposes
1 General
1.1 Scope
International Standard IEC 60432-1 specifies the safety and interchangeability requirements of
tungsten filament incandescent lamps for general lighting service having:
– rated wattage up to and including 200 W;
– rated voltage of 50 V to 250 V inclusive;
*
– bulbs of the A, B, C, G, M, P, PS, PAR or R shapes , or other bulb shapes where the lamps
are intended to serve the same purpose as lamps with the foregoing bulb shapes;
– bulbs with all kinds of finishes;
**
– caps B15d, B22d, E12, E14, E17, E26 , E26d, E26/50×39, E27 or E27/51×39.
As far as is reasonably practicable, this standard is also applicable to lamps with bulbs and
caps other than those mentioned above, but which serve the same purpose.
This standard specifies the method a manufacturer should use to show that his product
conforms to this standard on the basis of whole production appraisal in association with his test
records on finished products. This method can also be applied for certification purposes.
Details of a batch test procedure which can be used to make limited assessment of batches
are also given.
This standard is concerned with safety criteria only and does not take into account the
performance of tungsten filament lamps with respect to luminous flux, life or power
consumption characteristics. Readers should refer to IEC 60064 for such characteristics with
respect to types normally used for general lighting service.
__________
*
See IEC 60887 for description of the letter symbols. Associated traditional names are:
– Pear shape = A, PS
– Mushroom = M
– Candle = B, C (in North America)
– Round bulb = P
– Globular = G
– Reflector = R
– Parabolic reflector = PAR
**
There are two variations of E26 caps which are not fully compatible. In this standard separate references are
made to E26/24 caps used in North America and E26/25 caps used in Japan.

---------------------- Page: 10 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 9 –
1.2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this International Standard. For dated references, subsequent
amendments to, or revisions of, any of these publications do not apply. However, parties to
agreements based on this International Standard are encouraged to investigate the possibility
of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of IEC
and ISO maintain registers of currently valid International Standards.
IEC 60061-1: Lamp caps and holders together with gauges for the control of interchangeability
and safety – Part 1: Lamp caps
IEC 60061-3: Lamp caps and holders together with gauges for the control of interchangeability
and safety – Part 3: Gauges
IEC 60064: Tungsten filament lamps for domestic and similar general lighting purposes.
Performance requirements
IEC 60360: Standard method of measurement of lamp cap temperature rise
IEC 60410: Sampling plans and procedures for inspection by attributes
IEC 60432-2: Incandescent lamps – Safety specification – Part 2: Tungsten halogen lamps for
domestic and similar general lighting purposes
IEC 60598-1: Luminaires – Part 1: General requirements and tests
IEC 60887: Glass bulb designation system for lamps
ISO 3951: Sampling procedures and charts for inspection by variables for percent non-
conforming
1.3 Definitions
For the purpose of this International Standard the following definitions apply.
1.3.1
category
all lamps of one manufacturer having the same general construction (bulb shape, external
dimensions, cap type, filament type), rated voltage, rated wattage and finish
For the purposes of this standard:
a) clear, frosted and coatings equivalent to a frosted finish are considered to be the same;
b) various coloured and white finishes are not considered to be the same.
NOTE – Lamps differing only by their caps (e.g. E27 and B22d) are of different “categories”, but of the same “type”
as defined in IEC 60064.
1.3.2
type
lamps which, independent of the type of cap, are identical in photometric and electrical
characteristics

---------------------- Page: 11 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 11 –
1.3.3
class
all lamps of one manufacturer having the same general construction (bulb shape, external
dimensions, cap type, filament type), rated wattage and finish and differing only by their rated
voltages, when these voltages fall within the same voltage range (e.g. 100 V to 150 V, 200 V
to 250 V)
1.3.4
rated voltage
voltage or voltage range specified in the relevant lamp standard or assigned by the
manufacturer or responsible vendor
(If lamps are marked with a voltage range, it shall be interpreted that they are appropriate for
use on any supply voltage within that range.)
1.3.5
test voltage
rated voltage unless otherwise specified
(If lamps are marked with a voltage range, the test voltage shall be taken as the mean of the
voltage range unless otherwise specified.)
1.3.6
rated wattage
wattage specified in the relevant lamp standard or assigned by the manufacturer or responsible
vendor
1.3.7
end of life
instant when the energized lamp ceases to emit light
1.3.8
cap temperature rise (Δt )
s
surface temperature rise, above ambient temperature, of a standard test lampholder fitted
to the lamp’s cap, when measured in accordance with the standard method described in
IEC 60360
1.3.9
design test
test made on a sample, for the purposes of checking compliance of the design of a category,
class or group of categories with the requirements of the relevant clause
1.3.10
periodic test
test repeated at intervals in order to check that the product does not deviate in certain respects
from the given design
1.3.11
running test
test applied at frequent intervals in order to provide data for assessment
1.3.12
batch
all the lamps of one category, identified as such, and put forward at one time for checking
compliance

---------------------- Page: 12 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 13 –
1.3.13
whole production
production of all types of lamps within the scope of this standard manufactured during a period
of 12 months and nominated by the manufacturer in a list for inclusion in the control, this list
being incorporated in the certificate when certification is in operation
1.3.14
bowl mirror lamp
lamp with part of its bulb coated with reflecting material so as to reflect a substantial part of the
light in the general direction of the lamp cap
1.3.15
maximum cap temperature
maximum temperature which the components in the cap area of a lamp are designed to
withstand over the expected life of the lamp
1.3.16
lamp neck reference diameter
that diameter of a lamp which is of influence on the protection against accidental contact and
which is measured at a defined distance from the solder contact plate
For E14 capped lamps, this distance is 30 mm.
2 Requirements
2.1 General
Lamps shall be so designed and constructed that in normal use they present no danger to the
user or surroundings.
Lamps shall satisfy the requirements of this clause.
2.2 Marking
2.2.1 Mandatory markings
The following information shall be marked on the lamps and shall be legible and durable when
subjected to the test procedure in A.1:
a) mark of origin (this may take the form of a trade mark, the manufacturer’s name or the
name of responsible vendor);
b) the rated voltage or the rated voltage range, marked as “V” or “volts”;
c) the rated wattage, marked as “W” or “watts”.
For lamps with 40 mm diameter bulbs or larger and with a realized wattage of 14 W or less, the
wattage need not be marked.
The rated voltage marking for lamps intended for use on United Kingdom supply voltages may
be 240 volts or 240 V.
NOTE – The United Kingdom implementation of 230 V European harmonization process allows supply voltages to
remain at 240 V.

---------------------- Page: 13 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 15 –
2.2.2 Dichroic reflectorized (cool beam) lamps and bowl mirror lamps
The immediate lamp wrapping or container shall be marked with the relevant symbol as shown
in annex B.
2.2.3 Lamps with operating position limitations
For lamps requiring operating position limitations, such as some 60 W candle and round bulb
lamps capped with B22d or E27 caps which can comply with the requirement of the lamp cap
temperature rise only by excluding the cap-up position, the immediate lamp wrapping or
container shall be marked with the appropriate symbol. An example is shown in annex B.
NOTE – The requirements in 2.2.2 and 2.2.3 are intended as information for the end-user of the lamp.
2.3 Protection against accidental contact in screw lampholders
Dimensions of screw capped lamps shall be such that safety against accidental contact is
ensured according to IEC 60061.
The lamps shall satisfy the gauges, defined in IEC 60061-3 in accordance with table 1.
Table 1 – Gauges for checking lamps for protection against
accidental contact
Lamp cap Gauge sheet No. Lamp cap Gauge sheet No.
E12 – E26d 7006-29A
E14 see 2.3.1 E27/25 and E27/27 7006-51A
E17 – E27/51×39 7006-51
E26/24 –
E26/25 –
–
E26/50×39
NOTE – The dash marking in the Gauge sheet No. column means that at the moment no such test system has been developed.
2.3.1 E14 capped lamps
E14 capped lamps shall satisfy the following requirements:
a) candle lamps shall be fitted with caps E14/25×17 and tested with gauge 7006-55;
b) round bulb, pigmy, tubular and reflector lamps having lamp neck reference diameters of
21 mm and greater shall be fitted with caps E14/25×17 and tested with gauge 7006-55;
c) round bulb, pigmy, tubular and reflector lamps having lamp neck reference diameters
between 16 mm and 21 mm shall be fitted with caps E14/23×15 or E14/20;
d) round bulb, pigmy, tubular and reflector lamps having lamp neck reference diameters
between 14 mm and 16 mm shall be fitted with caps E14/20.
In cases c) and d) a gauge is not required, because the choice of caps guarantees the same
degree of safety as in cases a) and b).

---------------------- Page: 14 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 17 –
2.4 Lamp cap temperature rise (Δt )
s
2.4.1 Average cap temperature rise
The average cap temperature rise per class of lamp manufactured in a period of 12 months
shall not exceed the following:
a) the appropriate value as specified in table 2; or
b) 45 K lower than the relevant values in table 2 where advantage is taken of the lower
maximum cap temperature of 2.5.4 b).
However, lamps fitted with E12, E17 and E26 caps with higher Δt values intended for special
s
applications are permitted, provided suitable cautionary notices accompany each lamp.
NOTE – In North America, lampholder and luminaire designs may be primarily aligned with the cap temperature rise
characteristics of common frosted, clear and white lamps. Therefore, lamps with other bulb finishes or other
characteristics yielding a higher cap temperature rise may require special cautionary notices.
2.4.2 Compliance
Compliance shall be checked by measurements of lamp cap temperature rise on lamps in the
same class in accordance with the test procedure specified in IEC 60360.
If the lamp is marked with a voltage range, the cap temperature rise shall be measured at the
mean voltage provided the limits of the voltage range do not differ by more than 2,5 % from the
mean voltage. For lamps with a wider voltage range, the measurement shall be at the highest
marked voltage.
NOTE – Table 2 shows upper limits for average cap temperature rise which apply to all lamps listed by wattage,
bulb and cap. In practice, several design features such as light centre length, mount shape and bulb finish affect
cap temperature rise, but such factors are encompassed in each limit.
2.4.3 Batch testing
For the testing of batches when the 20 lamp sample size is needed, the average shall not
exceed the appropriate value in accordance with 2.4.1, with an allowance of +9 K.
2.5 Resistance to torque
2.5.1 Caps
Caps shall be so constructed and assembled to the bulbs that they remain attached during
normal operation.
2.5.2 Unused lamps
For unused lamps, the lamp cap shall not move relative to the bulb when subjected to the
relevant torque value from table 3 as tested in accordance with C.1. Where the means of
attachment is other than by capping cement or adhesive, relative movement between bulb and
cap is permitted, provided it does not exceed 10°.
2.5.3 Resistance to heat
The lamp cap and capping cement or other means of attachment shall endure exposure to heat
at a level equal to the maximum cap temperature for which that class of lamp is designed.
The lamp cap shall not move relative to the bulb when subjected to the relevant torque values
of table 4 after the heating test specified in C.2 at the appropriate temperature of 2.5.4. In the
case where the means of attachment is other than by capping cement or adhesive, relative
movement between bulb and cap is permitted, provided it does not exceed 10°.

---------------------- Page: 15 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 19 –
Table 2 – Maximum allowable cap temperature rise (Δt ) for various lamp wattages and
s
classes over a 12 month period average
Δt
Group Wattage Bulb shape s max.
number (note 1)
K
W B15d B22d E12 E14 E17 E26/24 E26/25 E27
1 25 and 30 A, PS, M and other – – – – – 35 65 –
shapes intended (note 2)
for use in the same
40 – – – – – 70 85 –
luminaire
(note 2)
60 – 125 – – – 90 95 120
(note 2)
100 – 135 – – – 110 110 130
(note 2)
150 and 200 – 135 – – – 110 100 130
(note 2)
240 B, G (equal to or 135 140 – 130 – 90 – 140
less than 45 mm
60 145 125 – 140 – 90 – 120
diameter), P and
(note 4) (note 4)
other shapes
intended for use in
the same luminaire
315 C and other – – 90 – 90 – 90 –
shapes intended (note 3) (note 3)
for use in the same
25 – – 110 – 110 110 110 –
luminaire
(note 6) (note 3)
40 – – 130 – 130 135 130 –
(note 6) (note 3) (note 7)
60 – – 145 – 130 165 130 –
(note 6) (note 3) (note 7)
4 25 and 40 G (>45 mm – – – – 110 – 110 –
60 and 100 diameter) – – – – – – 110 –
525 P and G (45 mm – – – – 110 – 110 –
diameter with
40 135 135 – 135 – – 110 135
bowl mirror
60
135 – – 135 – – 110 –
660 A and PS with – 130 – – – – 110 130
bowl mirror
100 – 135 – – – – 110 135
150 and 200 – 135 – – – – – 135
7 25 R shapes – – – – 85 – – –
40 120 120 – 120 95 110 95 120
60 – 130 – – 105 140 105 130
(note 8)
100, 150 and 200 – 135 – – – 140 110 135
(notes 8
and 9)
875 PAR shapes – – – – – – 85 150
(note 5)
100 – – – – – – 100 150
150 – – – – – – 125 150
9 150 PAR shapes with – – – – – – 150 175
dichroic reflector
(note 5)
NOTE 1 – For lamps with intermediate wattage values, the requirement of the next higher value shown applies.
NOTE 2 – These values are established to account for applications in lower temperature lampholders as used in North America.
NOTE 3 – Under consideration.
NOTE 4 – This may require a limitation on operating position.
NOTE 5 – Lamps with skirted caps: E26/50×39, E27/51×39, etc.
NOTE 6 – Some lamp classes may be limited to operation in the cap-down or cap-down-through-horizontal positions by the
manufacturer.
NOTE 7 – Some lamp classes may be limited to operation in the cap-down position by the manufacturer.
NOTE 8 – Some lamp classes may be limited by the manufacturer to applications in high-temperature lampholders, because
low-temperature lampholders could deteriorate.
NOTE 9 – Some lamp classes may be limited by the manufacturer to applications at 260 °C maximum cap temperature in
high-temperature lampholders.

---------------------- Page: 16 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 21 –
2.5.4 Heating treatment temperatures
The heating treatment shall be conducted at one of the following levels:
a) the maximum cap temperature, in relation to cap type as specified in table K.1; or
b) for certain classes of lamps where 210 °C is specified in table K.1, the manufacturer may
elect to design lamps that can withstand a maximum cap temperature of 165 °C, in which
case the heating test is carried out at 165 °C, provided their rated wattage is 15 W or lower,
and the lamp is not a reflector or bowl mirror type.
NOTE – For special applications in North America, maximum cap temperatures lower than those shown in table K.1
may be assigned by the lamp manufacturer. When such a lower temperature lamp class is established, the
manufacturer is encouraged to:
– propose special limits for this standard;
– alert luminaire manufacturers.
Table 3 – Torque test values for unused lamps
Cap type Torque value
Nm
B15d 1,15
B22d 3,0
E12 0,8
E14 1,15
E17 1,5
E26, E26d, E27, E26/50×39 and E27/51×39 3,0
Table 4 – Torque test values after heating
Cap type Torque value
Nm
B15d 0,3
B22d 0,75
E12 0,5
E14 1,0
E17 1,0
2,5
E26, E26d, E27, E26/50×39 and E27/51×39
2.6 Insulation resistance of B15d, B22d, E26/50×39 and E27/51×39 capped lamps and
other lamps having insulated skirts
Insulation resistance between the shell of the cap and the contacts of bayonet capped lamps,
or between the shell and the insulated skirt of skirted Edison screw capped lamps, shall be not
less than 2 MΩ when measured in accordance with the procedure of A.3.

---------------------- Page: 17 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 23 –
2.7 Accidentally live parts
2.7.1 Metal parts intended to be insulated from live parts
Metal parts intended to be insulated from live parts shall not be or become live. Any moveable
conductive material shall be placed without the use of a tool, in the most onerous position
before inspection in accordance with A.4.
2.7.2 Bayonet caps
On bayonet caps, any projection from the contact plate shall not come within 1 mm of metal
parts intended to be insulated.
2.7.3 Edison screw caps
On Edison screw caps any projection from the cap shell shall not project more than 3 mm from
the surface of the cap. See figure 1.
r = 3 mm
IEC  987/99
Figure 1 – Edison screw cap
2.8 Creepage distances for B15d and B22d capped lamps
The minimum creepage distance between the metal shell of the cap and the contacts shall be
in accordance with the distance given on the relevant cap sheet in IEC 60061-1.
2.9 Safety at end of life
When tested under the specified conditions, lamp failure shall not be accompanied by
breakage of the outer glass envelope nor its ejection from the cap. For bayonet capped lamps,
it is also required that there shall not be an internal short-circuit to the cap shell after the test.

---------------------- Page: 18 ----------------------

SIST EN 60432-1:2000
60432-1 © IEC:1999 – 25 –
The test conditions are:
– an induced-failure test in accordance with annex D or in accordance with the alternative
induced-failure test of annex A of IEC 60432-2, and
– an operation-to-failure test in accordance with annex E.
NOTE 1 – In case of disagreement, tests of annexes D and E are the reference methods.
NOTE 2 – The induced-failure test is not suitable for lamps with rated voltages below 100 V; however, the
alternative induced-failure test is suitable for lamps with rated voltages below 100 V.
NOTE 3 – If lamps fail the induced-failure test, it is not necessary for them to be submitted to the operation-to-
failure test.
NOTE 4 – Under circumstances defined in H.3, the operation-to-failure test may be used in place of the
induced-failure test.
2.10 Interchangeab
...