IEC PAS 62815-2:2013

Cold cathode fluorescent lamps - Part 2: Performance specifications

IEC/PAS 62815-2:2013(E) specifies the performance requirements for tubular type cold cathode fluorescent lamps for backlight unit purposes used to flat panel displays such as TV and monitor etc., hereafter called "lamps". For other types of lamp, additionally it will be revised when a need for them is recognized.

General Information

• Status: Withdrawn
• Publication Date: 06-Oct-2013
• Withdrawal Date: 01-Jan-2017
• ICS: 29.140.99 - Other standards related to lamps
• Technical Committee: SC 34A - Electric light sources
• Current Stage: WPUB - Publication withdrawn
• Start Date: 02-Jan-2017
• Completion Date: 11-Jan-2017

Standards Content (Sample)

IEC/PAS 62815-2 ®
Edition 1.0 2013-10
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Cold cathode fluorescent lamps –
Part 2: Performance specifications

IEC/PAS 62815-2:2013(E)
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IEC/PAS 62815-2 ®
Edition 1.0 2013-10
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Cold cathode fluorescent lamps –

Part 2: Performance specifications

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
P
ICS 29.140.99 ISBN 978-2-8322-1125-0

– 2 – PAS 62815-2 © IEC:2013(E)
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Classification . 7
5 Lamp requirements . 7
5.1 General . 7
5.2 Tests . 8
5.2.1 General . 8
5.2.2 Construction . 8
5.2.3 Starting characteristic . 8
5.2.4 Luminance . 8
5.2.5 Luminance uniformity. 9
5.2.6 Effective luminance length (under consideration) . 9
5.2.7 Chromaticity coordinates (under consideration) . 9
5.2.8 Colour uniformity . 9
5.2.9 Dark starting time . 9
5.2.10 Tube surface temperature . 9
5.2.11 Lead wire tensile strength . 9
5.2.12 Lead wire bending . 9
5.2.13 Life (Reference). 9
5.3 Marking . 10
Annex A (normative) Dimensions and criteria of CCFL . 12
Annex B (normative) Measurement points of CCFL . 13
Annex C (normative) Method of test for CCFL . 14

Figure A.1 – Dimensions and criteria of CCFL. 12
Figure B.1 – Measurement point division method of CCFL . 13
Figure C.1 – Test circuit (HOT-GND) . 15
Figure C.2 – Test circuit (HOT-HOT) . 15

Table 1 – Measurement items of test for life and criteria of failure . 10
Table 2 – Assurance . 10
Table 3 – Inspection levels and the criteria for decision . 10

PAS 62815-2 © IEC:2013(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COLD CATHODE FLUORESCENT LAMPS –

Part 2: Performance specifications

FOREWORD
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all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
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A PAS is a technical specification not fulfilling the requirements for a standard, but made
available to the public.
IEC/PAS 62815-2 has been processed by subcommittee 34A: Lamps, of IEC technical
committee 34: Lamps and related equipment.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
34A/1596/PAS 34A/1615/RVD
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned may transform it into an International Standard.

– 4 – PAS 62815-2 © IEC:2013(E)
This PAS shall remain valid for an initial maximum period of 3 years starting from the
publication date. The validity may be extended for a single period up to a maximum of 3 years,
at the end of which it shall be published as another type of normative document, or shall be
withdrawn.
PAS 62815-2 © IEC:2013(E) – 5 –
COLD CATHODE FLUORESCENT LAMPS –

Part 2: Performance specifications

1 Scope
This part of IEC/PAS 62815 specifies the performance requirements for tubular type cold
cathode fluorescent lamps for backlight unit purposes used to flat panel displays such as TV
and monitor etc., hereafter called “lamps”. For other types of lamp, additionally it will be
revised when a need for them is recognized.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050 (all parts), International Electrotechnical Vocabulary (available at
)
IEC/PAS 62815-1, Cold cathode fluorecent lamps – Safety specifications
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-845 and the
following apply.
3.1
cold cathode fluorescent lamp
fluorescent lamp with cold cathode, in which most light is emitted by the excitation of
phosphors coated in the discharge vessel
3.2
nominal value
approximate quantity value used to designate or identify a lamp
3.3
rated value
quantity value for a characteristic of a lamp for specified operating conditions
Note 1 to entry: The value and the conditions are specified in this PAS, or assigned by the manufacturer or
responsible vendor.
3.4
lumen maintenance
ratio of the luminous flux of a lamp at a given time in its life to its initial luminous flux, the
lamp being operated under specific conditions
Note 1 to entry: The ratio is generally expressed as a percentage.

– 6 – PAS 62815-2 © IEC:2013(E)
3.5
initial readings
starting characteristics of a lamp, measured before ageing, and the electrical, photometric
and cathode characteristics of a lamp, measured at the end of the 100 h ageing period
3.6
reference inverter
special electronic type inverter designed for the purpose of providing comparison standards
for use in testing inverters, for the selection of reference lamps and for testing regular
production lamps under standardized conditions, and which, at its rated frequency, has a
stable voltage/current ratio which is relatively uninfluenced by variations in current,
temperature and magnetic surroundings
3.7
lamp current
true r.m.s. type of current across a lamp
3.8
lamp voltage
true r.m.s. type of voltage across a lamp when measuring the lamp current
3.9
lamp power
product of lamp current, lamp voltage and power factor
3.10
power factor
ratio of the effective power to the apparent power, (expressed as the effective power divided
by the apparent power)
3.11
starting voltage
voltage between the electrodes required to start the discharge in a lamp
3.12
effective luminance length
length of the lamp having a ratio of 80 % from the centre luminance for the distribution of the
uniform luminance in a tube-axis direction
3.13
luminance uniformity
ratio of maximum and minimum luminance measured on the horizontally divided points of the
lamp, in which the percentage of minimum/maximum luminance among both ends and the
centre shall be reported
3.14
luminance stabili
...