IEC 62776:2014

IEC 62776 ®
Edition 1.0 2014-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Double-capped LED lamps designed to retrofit linear fluorescent lamps – Safety
specifications
Lampes à LED à deux culots conçues pour remplacer des lampes à fluorescence
linéaires – Spécifications de sécurité

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IEC 62776 ®
Edition 1.0 2014-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Double-capped LED lamps designed to retrofit linear fluorescent lamps – Safety

specifications
Lampes à LED à deux culots conçues pour remplacer des lampes à fluorescence

linéaires – Spécifications de sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 29.140.99 ISBN 978-2-8322-1939-3

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 62776
Edition 1.0  2014-12
DOUBLE-CAPPED LED LAMPS DESIGNED
TO RETROFIT LINEAR FLUORESCENT LAMPS –
SAFETY SPECIFICATIONS
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 34A: Lamps, of IEC technical
committee 34: Lamps and related equipment.
The text of this interpretation sheet is based on the following documents:
FDIS Report on voting
34A/2081/FDIS 34A/2090/RVD
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

___________
Interpretation of Clause 7 of IEC 62776:2014
The statement in the first paragraph of Clause 7 that “there shall not be any electrical
continuity between the two ends of the lamp during the insertion” is in contradiction with the
compliance requirements that follow. In the physical world, establishing the complete lack of
any electrical continuity between the two ends is not possible since all materials may be
characterized by their inherent conductivity however small it may be.
The compliance requirements described in the fourth paragraph of Clause 7 shall take
precedence.
ICS 29.140.99
– 2 – IEC 62776:2014 © IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General requirements and general test requirements . 9
5 Marking . 10
5.1 Marking on the lamp . 10
5.2 Marking on the lamp, on the immediate lamp wrapping (or container) or in
the instructions . 12
5.3 Instruction manual . 12
5.3.1 General . 12
5.3.2 Declaration of the product . 12
5.3.3 Graphical instruction . 13
5.3.4 Mounting . 13
5.4 Compliance . 13
6 Interchangeability . 14
6.1 Interchangeability of the cap . 14
6.2 Mass . 14
6.3 Dimensions . 14
6.3.1 Requirements . 14
6.3.2 Dimensions at 25 °C (non-operating) . 14
6.3.3 Variation of dimension A due to self-heating at 25 °C . 15
6.3.4 Dimension B at minimum ambient temperature . 15
6.3.5 Dimension A at maximum ambient temperature . 15
6.3.6 Compliance . 15
6.4 Temperature . 15
6.4.1 Temperature requirement . 15
6.4.2 Power requirement . 16
6.4.3 Compliance . 16
6.5 Safety of the lamp in case a wrong starter-lamp combination is used . 16
7 Pin-safety during insertion . 16
8 Protection against accidental contact with live parts . 17
8.1 General . 17
8.2 Test to establish whether a conductive part may cause an electric shock
during operation . 17
8.3 Insulation resistance . 19
8.4 Electric strength . 19
9 Mechanical requirements for caps . 19
9.1 Construction and assembly . 19
9.2 Torque test on unused lamps . 19
9.3 Torque test after heat treatment . 20
9.4 Repetition of 8.2 . 20
10 Cap temperature rise . 20
11 Resistance to heat . 21

12 Resistance to flame and ignition . 22
13 Fault conditions . 22
13.1 General . 22
13.2 Testing under extreme electrical conditions . 22
13.3 Short-circuit across capacitors . 23
13.4 Fault conditions across electronic components . 23
13.5 Compliance . 23
13.6 Further requirements . 24
13.7 Safety of the lamp with different types of controlgear . 24
13.8 Compliance for test with different types of controlgear . 25
13.9 Safety of the lamp in case the lumin
...