Miscellaneous lampholders - Part 2-3: Particular requirements - Lampholders for double-capped linear LED lamps

IEC 60838-2-3:2016 applies to lampholders for double-capped linear LED lamps intended for building-in (to be used for general lighting service and with caps as listed in Annex A). Lampholders within the scope of this standard do not include heat management. Double-capped linear LED lamps can also be used with lampholders originally been designated for other technologies. The requirements for these lampholders are covered by separate standards.
This publication is to be read in conjunction with IEC 60838-1:2004.

Douilles diverses pour lampes - Partie 2-3: Exigences particulières - Douilles pour lampes LED linéaires à deux culots

L'IEC 60838-2-3:2016 s'applique aux douilles pour lampes LED (Light-emitting diode - Diode électroluminescente) linéaires à deux culots prévues pour être incorporées (destinées à l'éclairage général et possédant les culots figurant à l'Annexe A). Les douilles relevant du domaine d'application de la présente norme n'incluent pas la gestion de la chaleur. Les lampes LED linéaires à deux culots peuvent également être utilisées avec des douilles initialement destinées à d'autres technologies. Les exigences relatives à ces douilles font l'objet de normes distinctes.
Cette publication doit être lue conjointement avec la IEC 60838-1:2004.

General Information

Status
Published
Publication Date
11-May-2016
Technical Committee
Current Stage
PPUB - Publication issued
Start Date
12-May-2016
Completion Date
12-May-2016
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IEC 60838-2-3
Edition 1.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Miscellaneous lampholders –
Part 2-3: Particular requirements – Lampholders for double-capped linear LED
lamps
Douilles diverses pour lampes –
Partie 2-3: Exigences particulières – Douilles pour lampes LED linéaires à deux
culots
IEC 60838-2-3:2016-05(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60838-2-3
Edition 1.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Miscellaneous lampholders –
Part 2-3: Particular requirements – Lampholders for double-capped linear LED
lamps
Douilles diverses pour lampes –
Partie 2-3: Exigences particulières – Douilles pour lampes LED linéaires à deux
culots
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.10 ISBN 978-2-8322-3357-3

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60838-2-3:2016 © IEC 2016
CONTENTS

FOREWORD ......................................................................................................................... 3

1 Scope ............................................................................................................................ 5

2 Normative references..................................................................................................... 5

3 Terms and definitions .................................................................................................... 5

4 General requirements .................................................................................................... 6

5 General conditions for tests ........................................................................................... 6

6 Classification ................................................................................................................. 9

7 Marking ......................................................................................................................... 9

8 Protection against electric shock .................................................................................. 10

9 Terminals .................................................................................................................... 10

10 Provision for earthing ................................................................................................... 10

11 Construction ................................................................................................................ 10

12 Moisture resistance, insulation resistance and electric strength .................................... 13

13 Mechanical strength ..................................................................................................... 13

14 Screws, current-carrying parts and connections ............................................................ 13

15 Creepage distances and clearances ............................................................................. 13

16 Endurance ................................................................................................................... 13

17 Resistance to heat and fire .......................................................................................... 13

18 Resistance to excessive residual stresses (season cracking) and to rusting .................. 13

Annex A (normative) Lampholders covered by this standard ............................................... 14

Annex B (normative) Test probes for checking gasket sleeves on lampholders for

higher IP protection ............................................................................................................ 15

Annex C (informative) Explanatory details for the installation of lampholders according

to 11.1 ................................................................................................................................ 16

Bibliography ....................................................................................................................... 17

Figure 1 – Mounting sheet ..................................................................................................... 7

Figure 2 – Fixture for the testing of lampholder flexibility ....................................................... 8

Figure 3 – Test cap GX16t-5 ................................................................................................. 9

Figure 4 – Mounting jig for the testing of lampholders .......................................................... 12

Figure B.1 – Test probes for checking gasket sleeves .......................................................... 15

Figure C.1 – Examples of lampholders ................................................................................ 16

---------------------- Page: 4 ----------------------
IEC 60838-2-3:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MISCELLANEOUS LAMPHOLDERS –
Part 2-3: Particular requirements –
Lampholders for double-capped linear LED lamps
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

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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 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

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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

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Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60838-2-3 has been prepared by subcommittee 34B: Lamp caps

and holders, of IEC technical committee 34: Lamps and related equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
34B/1851/FDIS 34B/1857/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 2.

---------------------- Page: 5 ----------------------
– 4 – IEC 60838-2-3:2016 © IEC 2016

This Part 2-3 is to be used in conjunction with the latest edition of IEC 60838-1 and its

amendments. It was established on the basis of the fifth edition (2016) of that standard.

A list of all parts in the IEC 60838 series, published under the general title Miscellaneous

lampholders, can be found on the IEC website.
In this standard the following print types are used:
– test specifications and compliance statements: in italic type;
– NOTES: in small roman type.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website 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.
---------------------- Page: 6 ----------------------
IEC 60838-2-3:2016 © IEC 2016 – 5 –
MISCELLANEOUS LAMPHOLDERS –
Part 2-3: Particular requirements –
Lampholders for double-capped linear LED lamps
1 Scope

This part of IEC 60838-2 applies to lampholders for double-capped linear LED lamps intended

for building-in (to be used for general lighting service and with caps as listed in Annex A).

Lampholders within the scope of this standard do not include heat management.
Double-capped linear LED lamps can also be used with lampholders originally been

designated for other technologies. The requirementsfor these lampholders are covered by

separate standards.
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.
Clause 2 of IEC 60838-1 applies, together with the following additions.
IEC 60061-2, Lamp caps and holders together with gauges for the control of
interchangeability and safety – Part 2: Lampholders
IEC 60061-3, Lamp caps and holders together with gauges for the control of
interchangeability and safety – Part 3: Gauges
IEC 60838-1, Miscellaneous lamp holders – Part 1: General requirements and tests

IEC 62504, General lighting – Light emitting diode (LED) products and related equipment –

Terms and definitions
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60838-1 and in

IEC 62504, as well as the following apply.
3.1
independent lampholder

lampholder so designed that it can be mounted separately from a luminaire, while at the same

time providing all the necessary protection according to its classification and marking

[SOURCE: IEC 60238:2004, 2.5]
3.2
flexible lampholder for linear double-capped LED lamp
flexible lampholder

lampholder in which the base of each holder is rigidly mounted in the luminaire but which has

one or both of the lampholders so designed as to allow axial movement of the contacts

---------------------- Page: 7 ----------------------
– 6 – IEC 60838-2-3:2016 © IEC 2016
Note 1 to entry: This note applies to the French language only.
[SOURCE: IEC 60400:2008 and IEC 60400:2008/AMD1:2011, 2.3, modified]
3.3
inflexible lampholder for linear double-capped LED lamp
inflexible lampholder

lampholder intended for rigid mounting and in which no axial movement of the contacts is

provided or is needed, either for the insertion and removal of the lamp or as compensation for

variation in lamp lengths
[SOURCE: IEC 60400:2008, 2.4, modified]
3.4
flexibly mounted lampholder for linear double-capped LED lamp
flexibly mounted lampholder

pair of lampholders which do not in themselves provide for any axial movement of the contact

system but which are intended to be mounted in a luminaire in a specified manner so that the

combination provides the necessary axial movement of the contact system
[SOURCE: IEC 60400:2008, 2.5, modified]
4 General requirements
The requirements of Clause 4 of IEC 60838-1 apply.
5 General conditions for tests

The requirements of Clause 5 of IEC 60838-1 apply together with the following additions.

5.1 In the case of flexible and inflexible lampholders (see 3.2 and 3.3 respectively), the

specimens are mounted on two pairs of mounting sheets as specified in Figure 1.

One pair of holders is mounted so as to represent the minimum mounting distance for this pair

of holders according to the manufacturer's mounting instructions; the other pair is mounted at

the maximum distance. The matching mounting sheets are marked.

Together with these specimens, the manufacturer's mounting instructions (see 8.1) shall be

supplied.
---------------------- Page: 8 ----------------------
IEC 60838-2-3:2016 © IEC 2016 – 7 –
Material: Steel
Stop side
Holder cut-out centred to this line
IEC
Key
This side shall be marked.

For holders requiring a vertical mounting surface, a steel angle shall be added to the mounting sheet.

When applying a force of 50 N to this angle in the height and in the direction of the lampholder axis, the lampholder

shall not deviate by more than 0,2 mm from its original position.

The drawing is intended only to illustrate the essential dimensions of the mounting sheet.

Dimension Tolerance
Reference
mm mm
P 70 ±0,1
Q 60
±0,1
R 2 ±0,5
S 1,0
±0,05

If the holder is designed for a lower material thickness, only the area required

for the mounting of the holder is reduced to this specific value.
Figure 1 – Mounting sheet

In case of doubt as to whether a lampholder GX16t-5 provides the required axial movement of

the contacts, a test with the device shown in Figure 2 may be carried out.
---------------------- Page: 9 ----------------------
– 8 – IEC 60838-2-3:2016 © IEC 2016
Test cap (see Figure 3)
Specified plunger travel
Direction of
test force
Fixture frame
Support Clambing jaws, overlapping on
mounting sheet 10 mm
Mounting sheet (see Figure 1)
IEC
Key

The fixture shown is intended for testing single lampholders. For testing twin-lampholders, modifications will be

necessary.

PURPOSE: To check, in case of doubt, whether the lampholder shall be considered as a flexible or an inflexible

one.

TESTING: The holder, mounted on the mounting sheet, is placed on the support and the test cap is inserted into

the holder. The mounting sheet is then moved in such a way that the test cap is fixed between holder and fixture

frame without clearance. In this position the mounting sheet is fixed by the use of the clamping jaws. A force is

applied via the plunger to the test cap until the specified plunger travel is achieved. The force required shall not

exceed 30 N for lampholders GX16t-5. This procedure is repeated 10 times.

After this test, no clearance shall exist between test cap and fixture frame, nor between test cap and holder. If the

holder complies, it is deemed to be a flexible lampholder; if not it is an inflexible one.

The plunger travel is equal to the required minimum axial contact movement, which is:

– for a pair of holders: 3 mm (under consideration) + mounting tolerance, according to the manufacturer's

instructions (see 7.1 of IEC 60838-1).

If the combined pair of holders consists of two flexible holders, each holder has to provide half of the required

contact movement.
The relevant test caps are described in Figure 3.
Figure 2 – Fixture for the testing of lampholder flexibility
---------------------- Page: 10 ----------------------
IEC 60838-2-3:2016 © IEC 2016 – 9 –
IEC
Key
This part of the gauge and the cap pins shall be of hardened steel.
Reference Dimension Tolerance
mm mm
A 26,5 ±0,1
B 1,0
±0,02
C 4,0 ±0,02
D 16,00
±0,05
D1 20,0 ±0,05
F 7,31
±0,05
H 35,0
±0,1
r 0,5
+0,3
–0,0

These test caps differ from the test caps used in Clause 13 by the material and

the additional dimensions A, H and r.
Figure 3 – Test cap GX16t-5
6 Classification

The requirements of Clause 6 of IEC 60838-1 apply together with the following additions.

6.1 According to the flexibility for axial movement of lamp length:
– flexible lampholders;
– inflexible lampholders.
7 Marking

The requirements of Clause 7 of IEC 60838-1 apply together with the following additions.

F H
---------------------- Page: 11 ----------------------
– 10 – IEC 60838-2-3:2016 © IEC 2016

7.1 The instructions supplied by the holder manufacturer or responsible vendor in order to

ensure correct mounting and operation of a pair of holders for linear double-capped LED

lamps shall contain at least the following information:

– method of mounting: for flexibly mounted holders, it shall be clearly stated whether both or

only one of the methods of mounting is intended;

NOTE A pair of flexible holders could consist of two holders each having a spring or one holder having a

spring and a second without a spring. The two methods of mounting are with and without a separate spring for

flexible mounting.
– mounting distance, with tolerance or reference to standard sheets;
– which holders shall be used as a pair;

– required mounting plate thickness, if the holder is designed for screwless mounting.

The above information may be part of the manufacturer's or responsible vendor's catalogue.

Compliance is checked by inspection.
8 Protection against electric shock

The requirements of Clause 8 of IEC 60838-1 apply together with the following additions.

8.1 Protection against electric shock shall be ensured when a lamp is inserted into a

lampholder at an angle not greater than 5° from the axis of the normal inserted position of the

lamp.

Lampholders incorporating a rotating part shall be tested with this part in the position of

normal lamp insertion.
NOTE 1 For further information see Figure C.1 d).
Compliance is checked as follows:
– by means of the gauge B as per IEC 60061-3, standard sheet 7006-183B (Double

ended ”GO” gauges for a combined pair of lampholders) and the standard test finger

specified in IEC 60529.

NOTE 2 To prevent electrical contact between the test finger and the metal body of gauge II, the "cap" face of

the gauge is covered with insulating material, having a thickness not exceeding 0,1 mm.

9 Terminals
The requirements of Clause 9 of IEC 60838-1 apply.
10 Provision for earthing
The requirements of Clause 10 of IEC 60838-1 apply.
11 Construction

The requirements of Clause 11 of IEC 60838-1 apply together with the following additions.

11.1 In case of absence of any additional lamp support (e.g. gasket sleeves for IP rated

lampholders), only lampholder incorporating a rotating part are allowed, no side entry

lampholder is permitted. This requirement does not apply to single contact lampholders.

---------------------- Page: 12 ----------------------
IEC 60838-2-3:2016 © IEC 2016 – 11 –

NOTE A side entry holder is a holder where the cap pins enter the insertion slot(s) of the holder in a direction

perpendicular to the lamp axis (parallel entry). For further information see Figures C.1 a), C.1 b) and C.1 c).

11.2 Lampholders shall be so constructed, that the seating position of the lamp is clearly

noticed when inserting the lamp.
Compliance is checked by inspection and by manual test.
11.3 Lampholders shall be so designed that adequate contact force is provided.

a) For bi-pin lampholders, making contact mainly along one side of each pin of the cap, the

contact force is measured with a single-ended gauge having dimensions and pin distances

according to standard sheet 7006-183C of IEC 60061-3, gauges E and G.
The contact force shall be between:

– 2 N and 30 N for lampholders not providing support to prevent bending of the lamp

pins;
– 2 N and 45 N for lampholders, when the lamp pins are supported by the holder
construction.

First the maximum contact force is measured with a pin distance as shown for gauge G.

This is followed by measurement of the minimum contact force with the pin distance of

gauge E.

b) For single-pin lampholders the contact force is measured with a single-ended gauge

having dimensions according to standard sheet 7006-183C of IEC 60061-3, gauges E and

The contact force shall be between 2 N and 25 N.

c) For bi-pin lampholders the torque required for the insertion and removal of the lamp shall

be measured with single-ended gauges having pin dimensions and pin distances
according to standard sheet 7006-183C of IEC 60061-3 gauges G and F.

The torque required to insert the gauges until the position representing the operating

position of the lamp is reached, shall not exceed 0,5 Nm.

The torque required to clear the gauges from the normal seated position shall be between

0,1 Nm and 0,5 Nm.
During complete removal of the gauges, the maximum values shall not be exceeded.

During force and torque testing, care should be taken that the front face of the gauges is kept

parallel with the holder face.

As a preconditioning cycle, there shall be one clockwise and one anticlockwise rotation, or

one insertion and withdrawal routine of each test device, before the initial measurement is

taken.

11.4 Lampholders shall comply with the relevant standard sheets of IEC 60061-2 with regard

to the holder dimensions:
Compliance is checked as follows:

– With two pairs of matching holders mounted in the mounting jig shown in Figure 4 and by

use of the relevant “GO” gauges and the relevant gauges for testing contact-making.

– Lampholders which, due to their design, do not allow testing in the mounting jig, and

flexibly mounted lampholders (see 3.4) shall be tested together with the relevant luminaire

and by use of the relevant gauges adapted to the specific lamp length according to

standard sheet 7005-183 of IEC 60061-2.

When testing contact-making, the gauges are pushed in the direction of each of the holder

faces in turn with a force of 10 N. For holders with a limited mass of 500 g for the lamp, the

force is limited to 5 N.
---------------------- Page: 13 ----------------------
– 12 – IEC 60838-2-3:2016 © IEC 2016

When testing in the mounting jig, this force can be achieved by vertical position of the gauge.

For lampholders intended for use with more than one lamp at the same time, additional mass

according to the number of lamps is placed on the lampholder face.
Bar pressing the mounting
Stop
sheet against the stop
Base plate
Clamping jaws ; overlapping on mounting sheet: 10 mm
Fixing screws
Mounting sheet (see Figure 1)
IEC
Key
The drawing is intended only to illustrate the essential dimensions of the jig.

For certain lampholders, for example twin-lampholders, it may be necessary to use two-piece clamping jaws.

Dimension Tolerance
Reference
mm mm
Z ±0,05
p 65
±0,1
q 60,2 +0,1
–0,0
r 5 ±0,1
t 40
±0,1
Z = 589,9 mm for testing lampholders GX16t-5 (derived from dimension Amax of
a 14,5 W lamp, see IEC 62931).
PURPOSE: Testing of a combined pair of holders regarding compliance with the
specified "Go" gauges and those for testing contact-m
...

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