LEDsi lamps for general lighting services with supply voltages not exceeding 50 V a.c. r.m.s. or 120 V ripple free d.c. - Safety specifications

IEC 62838:2015 specifies the safety and interchangeability requirements, together with the test methods and conditions, required to show compliance of LED lamps with integrated means for stable operation, intended for domestic and similar general lighting purposes.
The contents of the corrigendum of October 2017 have been included in this copy.

Lampes à LEDsi pour l'éclairage général fonctionnant à des tensions d'alimentation ne dépassant pas 50 V en courant alternatif efficace ou 120 V en courant continu lisse - Spécifications de sécurité

L'IEC 62838:2015 spécifie les exigences de sécurité et d'interchangeabilité ainsi que les méthodes d'essai et les conditions exigées pour assurer la conformité des lampes à LED dotées de moyens intégrés permettant un fonctionnement stable, destinées à un usage domestique et à des usages d'éclairage général analogues.
Le contenu du corrigendum d'octobre 2017 a été pris en considération dans cet exemplaire.

General Information

Status
Published
Publication Date
06-Oct-2015
Current Stage
PPUB - Publication issued
Start Date
07-Oct-2015
Completion Date
07-Oct-2015
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IEC 62838
Edition 1.0 2015-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
LEDsi lamps for general lighting services with supply voltages not exceeding
50 V a.c. r.m.s. or 120 V ripple free d.c. – Safety specifications
Lampes à LEDsi pour l’éclairage général fonctionnant à des tensions
d’alimentation ne dépassant pas 50 V en courant alternatif efficace ou 120 V en
courant continu lisse – Spécifications de sécurité
IEC 62838:2015-10(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62838
Edition 1.0 2015-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
LEDsi lamps for general lighting services with supply voltages not exceeding
50 V a.c. r.m.s. or 120 V ripple free d.c. – Safety specifications
Lampes à LEDsi pour l’éclairage général fonctionnant à des tensions
d’alimentation ne dépassant pas 50 V en courant alternatif efficace ou 120 V en
courant continu lisse – Spécifications de sécurité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140 ISBN 978-2-8322-2901-9

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 62838:2015 © IEC 2015
CONTENTS

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

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 8

4 General requirement and general test requirements ........................................................ 8

5 Marking ........................................................................................................................... 8

6 Interchangeability ............................................................................................................ 9

6.1 Cap interchangeability ............................................................................................ 9

6.2 Bending moment and mass imparted by the lamp at the lampholder ....................... 9

7 Protection against accidental contact with live parts ...................................................... 10

8 Insulation resistance and electric strength after humidity treatment ............................... 10

8.1 General ................................................................................................................. 10

8.2 Insulation resistance ............................................................................................. 10

8.3 Electric strength .................................................................................................... 10

9 Mechanical strength ...................................................................................................... 11

9.1 Pull force .............................................................................................................. 11

10 Cap temperature rise ..................................................................................................... 11

11 Resistance to heat ......................................................................................................... 11

12 Resistance to flame and ignition .................................................................................... 11

13 Fault conditions ............................................................................................................. 11

13.1 General ................................................................................................................. 11

13.2 Compliance ........................................................................................................... 11

14 Creepage distances and clearances .............................................................................. 11

15 Abnormal operation ....................................................................................................... 11

16 Photobiological safety .................................................................................................... 12

16.1 UV radiation .......................................................................................................... 12

16.2 Blue light hazard ................................................................................................... 12

16.3 Infrared radiation .................................................................................................. 12

17 Ingress protection .......................................................................................................... 12

18 Information for luminaire design ..................................................................................... 12

Annex A (informative) Information for luminaire design ........................................................ 13

A.1 Water contact ....................................................................................................... 13

A.2 Further impact on luminaires ................................................................................. 13

Bibliography .......................................................................................................................... 14

Figure 1 – Types of LED lamps with supply voltage ≤ 50V ...................................................... 7

Figure 2 – Lamp not suitable for use under dust and moisture ................................................ 9

Table 1 – Interchangeability gauges, lamp cap dimensions, bending moment and

mass ....................................................................................................................................... 9

Table 2 – Test voltages for caps ........................................................................................... 11

---------------------- Page: 4 ----------------------
IEC 62838:2015 © IEC 2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LEDsi LAMPS FOR GENERAL LIGHTING
SERVICES WITH SUPPLY VOLTAGES NOT EXCEEDING
50 V A.C. R.M.S. OR 120 V RIPPLE FREE D.C. –
SAFETY SPECIFICATIONS
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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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 62838 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/1852/FDIS 34A/1869/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.

In this standard, the following print types are used:
---------------------- Page: 5 ----------------------
– 4 – IEC 62838:2015 © IEC 2015
– requirements proper: in roman type
– test specifications: 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.
The contents of the corrigendum of October 2017 have been included in this copy.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 6 ----------------------
IEC 62838:2015 © IEC 2015 – 5 –
INTRODUCTION

This standard provides the requirements and conditions of compliance for the safety of semi-

integrated LED lamps with supply voltages equal to or less than 50 V a.c. r.m.s. or equal to or

less than 120 V ripple free d.c.

The establishing of this standard does not exclude a future relocation as a sub-part of

IEC 60968, self-ballasted lamps, or a merging with the standard for self-ballasted LED lamps

with supply voltages greater than 50 V.
---------------------- Page: 7 ----------------------
– 6 – IEC 62838:2015 © IEC 2015
LEDsi LAMPS FOR GENERAL LIGHTING
SERVICES WITH SUPPLY VOLTAGES NOT EXCEEDING
50 V A.C. R.M.S. OR 120 V RIPPLE FREE D.C. –
SAFETY SPECIFICATIONS
1 Scope

This International Standard specifies the safety and interchangeability requirements, together

with the test methods and conditions, required to show compliance of LED lamps with

integrated means for stable operation, intended for domestic and similar general lighting

purposes, having:
– a rated power up to 60 W

– a rated voltage equal to or less than 50 V a.c. r.m.s. or equal or less 120 V ripple free d.c.,

– caps according to Table 1.

NOTE 1 The value of 60 W rated power is under consideration. Heat management may require lower power.

This standard shall be used for products in conjunction with ELV lighting installations.

With reference to IEC 60364-7-715, in ELV lighting installations only SELV sources are

applied. Where bare conductors are used, the maximum lamp voltage shall be 25 V a.c. or

60 V d.c.
The requirements of this standard relate only to type testing.

For lamps > 25 V a.c. or 60 V d.c., recommendations for whole production testing or batch

testing are given in IEC 60598-1 Table Q.1, column class III luminaire, column 4 or 5.

NOTE 2 Where in this standard the term “lamp(s)” is used, it is understood to stand for semi-integrated LED

lamp(s) with supply voltages as in the scope above, except where it is obviously assigned to other types of lamps.

An overview of systems composed of LED modules, lamps and controlgear is given in

IEC 62504. Supply voltage does not mean necessarily mains voltage, e.g. 230 V / 50 Hz. A

semi-integrated LED lamp can also be driven on a supply voltage with 12 V a.c. or d.c. The

control unit in the controlgear in a semi-integrated LED lamp then provides the conversion of

12 V a.c. or d.c. to a special current and voltage to power the LED inside the semi-integrated

LED lamp. Schematically, the types of LEDni and LEDsi lamps are shown in Figure 1.

---------------------- Page: 8 ----------------------
IEC 62838:2015 © IEC 2015 – 7 –
IEC
IEC

a) Example of a non-integrated LED lamp b) Example of a semi-integrated LED lamp with

≤ 50V ≤ 50V, in the scope of this
with supply voltage supply voltage
standard
Key Key

1 Converter not LED specific, but designed typically 1 Converter not LED specific, but designed

for incandescent or tungsten halogen lamps. typically for incandescent or tungsten halogen

lamps.
2 Non-integrated LED light source, typically a 2 LED control unit.
module. It may have an IEC 60061-1 conform cap
which is LED specific and not retrofit.
3 Semi-integrated LED lamp as defined in
3.15.4 of IEC 62504.
NOTE Figure 1a) type is not covered by this standard.
Figure 1 – Types of LED lamps with supply voltage ≤ 50V
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 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 60364-4-41:2005, Low-voltage electrical installations – Part 4-41: Protection for safety –

Protection against electric shock

IEC 60364-7-715:2011, Electrical installations – Requirements for special installations or

locations – Extra-low-voltage lighting installations

IEC 60417, Graphical symbols for use on equipment (available from: http://www.graphical-

symbols.info/equipment)
IEC 60598-1, Luminaires – Part 1: General requirements and tests
IEC 61347-1:2015, Lamp controlgear – Part 1: General and safety requirements
IEC 62031, LED modules for general lighting – safety requirements
IEC 62504, General lighting – LEDs and LED modules – terms and definitions

IEC 62560, Self-ballasted LED lamps for general lighting services by voltage > 50 V – Safety

specifications
---------------------- Page: 9 ----------------------
– 8 – IEC 62838:2015 © IEC 2015

IEC TR 62778, Application of IEC 62471 for the assessment of blue light hazard to light

sources and luminaires
3 Terms and definitions

For the purposes of this document the terms and definitions of IEC 62031, IEC 62504,

IEC 62560 and IEC 61347-1 as well as the following apply.
3.1
ultraviolet hazard efficacy of luminous radiation
S,v

quotient of a ultraviolet hazard quantity to the corresponding photometric quantity

Note 1 to entry: Ultraviolet hazard efficacy of luminous radiation is expressed in mW/klm.

Note 2 to entry: The ultraviolet hazard efficacy of luminous radiation is obtained by weighting the spectral power

distribution of the lamp with the UV hazard function S (λ). Information about the relevant UV hazard function is

given in IEC 62471. It only relates to possible hazards regarding UV exposure of human beings. It does not deal

with the possible influence of optical radiation on materials, such as mechanical damage or discoloration.

4 General requirement and general test requirements
The requirements of IEC 62560 apply.
5 Marking
The requirements of IEC 62560 apply.

Deviating from the frequency marking in IEC 62560, 5.1 d), the following applies.

If a lamp is only suitable for DC, it shall be marked "DC" or " "(IEC 60417-5031
(2002-10)).

If a lamp is only suitable for AC electronic, it shall be marked “AC electronic” or “ electronic

” (IEC 60417-5032 (2002-10)).

If a lamp is only suitable for AC 50 Hz/60Hz, it shall be marked “AC 50 Hz/60Hz” or “

50 Hz/60 Hz".

If a lamp is suitable for AC electronic and AC 50 Hz/60Hz, it shall be marked “AC”; the

addition “electronic and 50 Hz/ 60 Hz” is optional.

If a lamp is suitable for DC, AC electronic and AC 50 Hz/60 Hz, it shall only be marked with

the voltage, not with the frequency.

Lamps with bulbs not suitable for water contact shall be marked with the symbol according to

Figure 2. The marking shall be provided on the packaging or accompanying information. The

height of the graphical symbol shall be at least 5 mm. The symbol is not needed if a written

cautionary notice is provided.
---------------------- Page: 10 ----------------------
IEC 62838:2015 © IEC 2015 – 9 –
IEC 60417-6179-1 (2014-10)
Figure 2 – Lamp not suitable for use under moisture
6 Interchangeability
6.1 Cap interchangeability

Interchangeability shall be ensured by the use of caps in accordance with IEC 60061-1 and

gauges in accordance with IEC 60061-3; see Table 1. Caps originally developed for single-

capped extra low voltage (ELV) lamps shall not be used for mains voltage lamps. Examples of

ELV lamp caps are given in Table 1, see also IEC 60432-3.

Lamps with additional mechanical fixation (e.g. rim mounted lamps) are exempted of the

bending moment and mass requirements of Table 1.
Compliance is checked by the use of the relevant gauges.
Table 1 – Interchangeability gauges, lamp cap dimensions,
bending moment and mass
Bending
Cap dimensions to
Mass
Cap sheet no. Gauge sheet no.
moment
Lamp cap be checked by the
from IEC 60061-1 from IEC 60061-3
gauge
Nm g
G4 7004-72 “Go” and “Not Go” 7006-72 Gauge A u.c. 20
GU4 7004-108 “Go” and “Not Go” 7006-108 u.c. u.c.
GU5.3 7004-109 “Go” and “Not Go” 7006-109 u.c. u.c.
GX5.3 7004-73A “Go” and “Not Go” 7006-73B u.c. u.c.
“Go” and “Not Go” 7006-61 u.c. u.c.
G6.35 7004-59
“Go” 7006-61A u.c. u.c.
GY4 7004-72A u.c. u.c. u.c. u.c.
“Go” and “Not Go” 7006-61 u.c. u.c.
GY6.35 7004-59
“Go” 7006-61A u.c. u.c.
GU7 7004-113 “Go” and “Not Go” 7006-113 u.c. u.c.
G53 7004-143 u.c. u.c. u.c. u.c.
NOTE u.c.: under consideration
6.2 Bending moment and mass imparted by the lamp at the lampholder

The value of the bending moment, imparted by the lamp at the lampholder shall not exceed

the value given in Table 1. For the measurement method, see IEC 62560, 6.2.
Compliance shall be checked by measurement.
---------------------- Page: 11 ----------------------
– 10 – IEC 62838:2015 © IEC 2015
The value of the lamp mass shall not exceed the relevant value of Table 1.
Compliance shall be checked by measurement.
7 Protection against accidental contact with live parts

Lamps which are intended for ELV installations as specified in the scope may have accessible

conductive parts, but where voltage exceeds 25 V a.c. r.m.s. or 60 V d.c. ripple free, the

touch current shall not exceed:
– for a.c.: 0,7 mA (peak)
– for d.c.: 2,0 mA.
The limits given are based on IEC 60364-4-41.

The external metal parts other than current-carrying metal parts of the cap of all lamps shall

not be or become live. For testing, any movable conductive material shall be placed in the

most onerous position without using a tool.

Compliance is checked by the touch current requirements of IEC 60598-1, Section 8 and

Annex G.
8 Insulation resistance and electric strength after humidity treatment
8.1 General

Insulation resistance and electric strength shall be adequate between live parts of the lamp

and accessible parts of the lamp.
8.2 Insulation resistance

The lamp shall be conditioned for 48 h in a cabinet containing air with a relative humidity

between 91 % and 95 %. The temperature of the air is maintained within 1 °C of any

convenient value between 20 °C and 30 °C.

Insulation resistance shall be measured in the humidity cabinet with a d.c. voltage of

approximately 500 V, 1 min after application of the voltage.

The insulation resistance between live parts of the cap and accessible parts of the lamp

(accessible parts of insulating material are covered with metal foil) shall be not less than

1 MΩ.
8.3 Electric strength

Immediately after the insulation resistance test, the same parts as specified above shall

withstand a voltage test for 1 min with an a.c. voltage as follows.

During the test the supply contacts of the cap are short-circuited. Accessible parts of

insulating material of the cap are covered with metal foil. Initially no more than half the

voltage prescribed in Table 2 is applied between the contacts and the metal foil. It is then

gradually raised to the full value.

No flashover or breakdown shall occur during the test. Measurements shall be carried out in

the humidity cabinet.
NOTE 1 The distance between the foil and the live parts is under consideration.
---------------------- Page: 12 ----------------------
IEC 62838:2015 © IEC 2015 – 11 –
Table 2 – Test voltages for caps
Supply voltage Test voltage
Cap
V V r.m.s.
25 to 50 a.c. r.m.s.
All caps 500
60 to 120 ripple free d.c.

NOTE 2 In Japan some luminaires accept lamps with caps, listed in Table 1, that can have non-SELV sources.

9 Mechanical strength
9.1 Pull force
Under consideration.
10 Cap temperature rise
The requirements of IEC 62560, Clause 10, apply.
11 Resistance to heat
The requirements of IEC 62560, Clause 11, apply.
12 Resistance to flame and ignition
The requirements of IEC 62560, Clause 12, apply.
13 Fault conditions
13.1 General

The lamp shall not impair safety when operated under fault conditions that may occur during

the intended use. The requirements of IEC 61347-1, Clause 14, and IEC 62560, Clause 13,

apply.
13.2 Compliance

The requirements of IEC 62560, 13.3, apply, except that the applied voltage shall be 500 V

instead of 1 000 V.
14 Creepage distances and clearances

The requirements of IEC 61347-1 apply except that for conductive accessible parts

IEC 60598-1 is applicable.
15 Abnormal operation
Under consideration.
---------------------- Page: 13 ----------------------
– 12 – IEC 62838:2015 © IEC 2015
16 Photobiological safety
16.1 UV radiation

The ultraviolet hazard efficacy of luminous radiation of a LED lamp shall not exceed

2 mW/klm.

Compliance is checked by measurement of the spectral power distribution and subsequent

calculation of the ultraviolet hazard efficacy of luminous radiation.

LED lamps not relying on the conversion of UV radiation are not expected to exceed the

maximum allowed ul
...

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