IEC 60838-1:2004/AMD2:2011

IEC 60838-1 ®
Edition 4.0 2011-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Miscellaneous lampholders –
Part 1: General requirements and tests

Douilles diverses pour lampes –
Partie 1: Prescriptions générales et essais

IEC 60838-1:2004/A2:2011
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IEC 60838-1 ®
Edition 4.0 2011-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Miscellaneous lampholders –
Part 1: General requirements and tests

Douilles diverses pour lampes –
Partie 1: Prescriptions générales et essais

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE PRICE CODE
G
CODE PRIX
ICS 29.140.10 ISBN 978-2-88912-408-4

– 2 – 60838-1 Amend. 2 © IEC:2011
FOREWORD
This amendment has been prepared by subcommittee 34B: Lamp caps and holders, of IEC
technical committee 34: Lamps and related equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
34B/1581/FDIS 34B/1594/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1.2 Normative references
Add the following new reference to the existing list.
IEC 60417, Graphical symbols for use on equipment
2 Definitions
Add the following new definitions:
2.14
basic insulation
insulation applied to live parts to provide basic protection against electric shock
NOTE Basic insulation does not necessarily include insulation used exclusively for functional purposes.
2.15
supplementary insulation
independent insulation applied in addition to basic insulation in order to provide protection
against electric shock in the event of a failure of basic insulation
2.16
double insulation
insulation comprising both basic insulation and supplementary insulation

60838-1 Amend. 2 © IEC:2011 – 3 –
2.17
reinforced insulation
single insulation system applied to live parts, which provides a degree of protection against
electric shock equivalent to double insulation under the conditions specified
NOTE The term "insulation system" does not imply that the insulation must be one homogeneous piece. It may
comprise several layers which cannot be tested singly as supplementary or basic insulation.
2.18
enclosed reinforced insulated lampholder
lampholder for building-in so designed that on its own it fulfils the requirements for double or
reinforced insulated parts in class II applications
2.19
partly reinforced insulated lampholder
lampholder for building-in, so designed that some parts of the lampholder require additional
means to fulfil the requirements with regard to double or reinforced insulation
NOTE In some cases, the dimensions might be achieved only after mounting into the luminaire.
2.20
polarized lampholder
lampholder for building-in, specially designed for asymmetric rated pulse voltages, where the
rated ignition voltage (higher rated pulse voltage) is designated to a fixed contact
5 Classification
Replace the existing Subclause 5.1 by the following:
5.1 According to their installation conditions
− unenclosed lampholders;
− enclosed lampholders;
− partly reinforced insulated lampholders;
− enclosed reinforced insulated lampholders.
NOTE Where a lampholder is used with a working voltage of 50 % or less of its maximum rating, it may be
regarded as equivalent to a reinforced insulated lampholder.
Add the following new Subclause 5.3:
5.3 According to polarization
− non-polarized lampholders;
− polarized lampholders.
– 4 – 60838-1 Amend. 2 © IEC:2011
6 Marking
Replace the first paragraph of the note in Subclause 6.1 under item b) with the following new
text:
NOTE Available technical documentation of the manufacturer like printed catalogues or online catalogues should
allow a clear identification of a lampholder either by a unique catalogue number or by an identifying reference on
the holder, specifying the essential characteristic features and the basic design of the product supplemented by a
clear description. Variations of the basic design like for example different cable length, fixing means, colours etc.,
which do not affect safety or performance of the lampholder, may be disregarded in the type reference marked on
the product. Variations included in the type testing procedure are listed in the corresponding test reports.
Replace the existing item a) of Subclause 6.2 by the following:
a) the rated voltage in volts and rated pulse voltage in kilovolts (kV), if applicable. For
polarized lampholders, the rated voltage in volts and the pair of rated pulse voltages;
Add, to the list of Subclause 6.2, the following new item e):
e) the high voltage arrow (see IEC 60417-5036:2002-10) for polarized lampholders to identify
the connection for the higher pulse voltage, if applicable. It shall be visible close to the
relevant terminal or wire entry during lampholder installation.
Add, to the list of the third paragraph, the following new dashed item:
− high pulse voltage terminal/wire on polarized lampholders: (see
IEC 60417-5036:2002-10)
Replace, in Subclause 6.2, the three paragraphs after the note by the following new text:
For the rated pulse voltage, the symbol shall be preceded by its value (e. g. 5 kV). For
polarized lampholders, the two rated pulse voltages shall be separated by an oblique stroke
(e. g. 15/2,5 kV).
Renumber the existing Note as Note 1 and add the following new Note 2 before the
compliance paragraph.
NOTE 2 The figure marked before the oblique stroke represents the higher pulse voltage, the figure behind
represents the rated pulse voltage based on the impulse withstand category of the lampholder.
Replace, in Subclause 6.2, the last two paragraphs and the note added by Amendment 1
(“Lampholders complying with… or the like”), by the following new text:
Enclosed reinforced insulated lampholders offer an adequate level of protection for use in
luminaires where they are accessible in normal use. This information shall be indicated in the
manufacturer’s catalogue or the like.
For partly reinforced insulated lampholders, sufficient creepage distances and clearances to
outer accessible surfaces will require additional protection to some parts of the lampholder by
the luminaire design or by use of additional attachment(s) or cover(s). This information shall
be indicated in the manufacturer’s catalogue or the like.

60838-1 Amend. 2 © IEC:2011 – 5 –
11 Moisture resistance, insulation resistance and electric strength
Add, in Subclause 11.2.2, the following new dashed item to existing list:
− for enclosed and unenclosed reinforced insulated lampholders, the test voltage shall be
determined from Table 10.2 of IEC 60598-1.
14 Creepage distances and clearances
Table 2a – Minimum distances for a. c. (50 Hz/60 Hz) sinusoidal voltages – Impulse
withstand category II
Replace the existing Table 2a by the following new table:

– 6 – 60838-1 Amend. 2 © IEC:2011

Rated voltage
Distances
V
mm
50 150 250 500
1 Between live parts of different polarity, and
2 Between live parts and external metal parts,
or the outer surface of parts of insulating

material which are permanently fixed to the
a
holder , including screws or devices for fixing

covers or fixing the holder to its support:

Basic insulation
- Creepage distances
0,6 0,8 1,5 3
b
insulation PTI ≥ 600
b
PTI < 600
1,2 1,6 2,5 5
- Clearances 0,2 0,8 1,5 3
Reinforced insulation
- Creepage distances
- 1,6 3 6
b
insulation PTI ≥ 600
b
- 3,2 5 6
PTI < 600
- Clearances - 1,6 3 6
3  Between live parts and the mounting surface
or a loose metal cover, if any, if the
construction does not ensure that the values
under item 2 are maintained under the most
unfavourable circumstances:
- Clearances 0,6 0,8 1,5 3
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.
b
PTI (proof tracking index) in accordance with IEC 60112.
– 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 (independent of the real PTI).
Values for creepage distances and clearances may be found for intermediate values of rated voltages by linear
interpolation between tabulated values. No values are specified for rated voltages below 25 V as the voltage test of
11.2.2 is considered sufficient.
In Japan, the values given in the table are not applicable. Japan requires larger values than the values given in the
table.
Add, at the end of Clause 14, before the compliance paragraph, the following new paragraph:
For polarized lampholders, creepage distances and clearances to external metal parts or the
outer surface of parts of insulating material may be designed and shall be checked for each
pole separately. The distances between the contacts shall be designed according to the high
pulse voltage.
____________
– 8 – 60838-1 Amend. 2 © CEI:2011
AVAN
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