IEC 60400:2017/AMD2:2022

IEC 60400 ®
Edition 8.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Lampholders for tubular fluorescent lamps and starterholders

Douilles pour lampes tubulaires à fluorescence et douilles pour starters

IEC 60400:2017-06/AMD2:2022-02(en-fr)

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IEC 60400 ®
Edition 8.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Lampholders for tubular fluorescent lamps and starterholders

Douilles pour lampes tubulaires à fluorescence et douilles pour starters

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.10 ISBN 978-2-8322-1074-0

– 2 – IEC 60400:2017/AMD2:2022
© IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LAMPHOLDERS FOR TUBULAR FLUORESCENT
LAMPS AND STARTERHOLDERS
AMENDMENT 2
FOREWORD
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Amendment 2 to IEC 60400:2017 has been prepared by subcommittee 34B: Lamp caps and
holders, of IEC technical committee 34: Lighting.
The text of this Amendment is based on the following documents:
Draft Report on voting
34B/2110/CDV 34B/2121/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.

© IEC 2022
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at www.iec.ch/members_experts/refdocs. The main document types developed by
IEC are described in greater detail at www.iec.ch/standardsdev/publications/.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 4 – IEC 60400:2017/AMD2:2022
© IEC 2022
INTRODUCTION to Amendment 2
Lampholders specified in this standard are used not only for fluorescent lamps but also now
for retrofit LED lamps. LED lamp designers, as well as lampholder designers, refer to this
standard. However, it may lead to a misread of the original intention of the relaxation in
Clause 17, which indicates that creepage distances or clearances between lamp contacts can
be reduced.
The purpose of this amendment is to make the relaxation provision clear and to avoid
misreading, i.e.
• the relaxation provision has been moved from the end of Clause 17 to the footnotes in
Table 3,
and
• an explanatory note for this relaxation has been added to Table 3.

___________
17 Creepage distances and clearances
Table 3
In Table 3, modified by Amendment 1, add, in the first row, list item 1, a new footnote "d".
Renumber the existing NOTE as NOTE 1 and add a new NOTE 2 , as follows:

© IEC 2022
Table 3 – Minimum distances for AC sinusoidal voltages up to 30 kHz –
Impulse withstand category II
Distances Rated voltage
mm V
50 150 250 500
Basic insulation
d
1 Distances between live parts of different polarity , and
2 Between live parts and external metal parts, mounting surfaces, loose
metal cover, if any, the outer surface of parts of insulating material
a
which are permanently fixed to the holder , including screws or
devices for fixing covers or fixing the holder to its support:
– Creepage distances
b
insulation PTI ≥ 600 0,6 0,8 1,5 3
b
PTI < 600 1,2 1,6 2,5 5
c
– Clearances 0,2 0,5 1,5 3
Reinforced Insulation
Between live parts and external metal parts, mounting surfaces, loose
metal cover, if any, the outer surface of parts of insulating material which
a
are permanently fixed to the holder , including screws or devices for
fixing covers or fixing the holder to its support:
– Creepage distances
b
insulation PTI ≥ 600 – 1,6 3 5,5
b
PTI < 600 – 3,2 5 10
c
– Clearances 0,4 1,6 3 5,5
Values for creepage distances can be found for intermediate values of rated voltages by linear interpolation
between tabulated values. No values are specified for rated voltages below 25 V AC and 60 V DC ripple free as
the voltage test of 13.3 is considered sufficient. Creepage distances shall not be less than the required minimum
clearance.
For glass, ceramics or other inorganic insulating materials which do not track, creepage distances need not be
greater than their associated clearance for the purpose of insulation coordination. The dimensions of this table
are appropriate.
In Japan, the values given in this table are not applicable. Japan requires larger values than the values given in
this table.
NOTE 1 Information on standard ratings for specific holder types is given in Clause 6.
NOTE 2 For lampholders which are not suitable to be connected directly across the mains, it is expected that
the working voltage between contacts of a lampholder which are connected to the single fluorescent lamp
filament, is much lower than the rated voltage. Consequently, the creepage distance or clearance between the
lamp contacts can be reduced.
a
The distances between live contacts and the lampholder face (reference plane) shall, however, be in
accordance with the relevant standard sheets of IEC 60061-2.
The distances for starter holders shall be in accordance with Figures 10a and 10b.
b
PTI (proof tracking index) in accordance with IEC 60112:2003 and IEC 60112:2003/AMD1:2009.
– In the case of creepage distances to parts not energized or not intended to be earthed, where no tracking
can occur, the values specified for material with PTI ≥ 600 apply for all materials (in spite of the real
PTI).
– For creepage distances subjected to working voltages of less than 60 s duration, the values specified for
material with PTI ≥ 600 apply for all materials.
– For creepage distances not liable to contamination by dust or moisture, the values specified for material
with PTI ≥ 600 apply for all materials (independently of the real PTI).
– For creepage distances, the equivalent DC voltage is equal to the r.m.s. value of the sinusoidal AC
voltage.
c
For clearances, the equivalent DC voltage is equal to the peak of the AC voltage.
d
For lampholders which are not suitable to be connected directly across the mains the creepage distance or
clearance between the lamp contacts can be reduc
...