IEC TS 62257-12-1:2020

Recommendations for renewable energy and hybrid systems for rural electrification - Part 12-1: Laboratory evaluation of lamps and lighting appliances for off-grid electricity systems

IEC TS 62257-12-1:2020 establishes the framework for creating a product specification for lamps and lighting appliances to serve as the basis for evaluating quality for a particular context. Product specifications include minimum requirements for quality standards, warranty requirements, and/or performance criteria. Products are compared to specifications based on test results and other information about the product. The product specification framework is flexible and can accommodate the goals of diverse organizations and institutions. This third edition cancels and replaces the second edition published in 2015. This edition includes the following significant technical changes with respect to the previous edition.
- Annex A and Annex B were combined into a single Annex A to eliminate duplicate tables and simplify the document.

General Information

• Status: Published
• Publication Date: 24-May-2020
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.160 - Solar energy engineering
• Technical Committee: TC 82 - Solar photovoltaic energy systems
• Drafting Committee: JWG 1 - TC 82/JWG 1
• Current Stage: PPUB - Publication issued
• Start Date: 30-Apr-2020
• Completion Date: 25-May-2020

Relations

• Revises: IEC TS 62257-12-1:2015 - Recommendations for renewable energy and hybrid systems for rural electrification - Part 12-1: Selection of lamps and lighting appliances for off-grid electricity systems
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC TS 62257-12-1 ®
Edition 3.0 2020-05
TECHNICAL
SPECIFICATION
Recommendations for renewable energy and hybrid systems for rural
electrification –
Part 12-1: Laboratory evaluation of lamps and lighting appliances for off-grid
electricity systems
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
IEC TS 62257-12-1 ®
Edition 3.0 2020-05
TECHNICAL
SPECIFICATION
Recommendations for renewable energy and hybrid systems for rural

electrification –
Part 12-1: Laboratory evaluation of lamps and lighting appliances for off-grid

electricity systems
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-8077-5

– 2 – IEC TS 62257-12-1:2020 © IEC 2020
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Characteristics of lamps and lighting appliances . 15
4.1 Product categories . 15
4.2 System measurements and observations . 15
4.2.1 General . 15
4.2.2 Design, manufacture, and marketing . 15
4.2.3 Durability and workmanship . 17
4.2.4 Electrical characteristics . 19
4.2.5 Photometric performance measures . 20
4.2.6 Photometric durability measures . 21
4.2.7 Self-declaration aspects . 21
5 Product specification . 22
5.1 General . 22
5.2 Applications . 22
5.3 Quality assurance principles . 23
5.3.1 General . 23
5.3.2 Rationale for dividing quality, warranty, and performance . 23
5.4 Product specification framework description . 24
5.4.1 General . 24
5.4.2 Product specification template . 24
5.4.3 Tolerances . 27
5.4.4 Quality standards criteria . 28
5.4.5 Warranty requirements criteria . 33
5.4.6 Performance criteria . 33
6 Quality test method (QTM) . 35
6.1 General . 35
6.2 Applications . 36
6.3 Sampling requirements . 36
6.4 Laboratory requirements . 36
6.5 Testing requirements . 36
6.6 Recommended test programme . 38
6.6.1 General . 38
6.6.2 Reporting . 40
7 Market check method (MCM) . 41
7.1 General . 41
7.2 Applications . 41
7.3 Sampling requirements . 42
7.4 Laboratory requirements . 42
7.5 Testing requirements . 42
7.6 Recommended tests programme . 44
7.7 Report requirements . 44

Annex A (informative) Example quality standards and performance criteria for off-grid
lighting market support programme qualification and bulk procurement (“sample
tender”) qualification . 45
A.1 Overview. 45
A.2 Test requirements . 45
A.3 Quality standards . 45
A.4 Warranty requirements . 47
A.5 Performance criteria . 47
Annex B (informative) Reserved. 49
Annex C (normative) Manufacturer self-reported information . 50
C.1 Background. 50
C.2 Outcomes . 50
C.3 Solicited information . 50
Annex D (normative) Product sampling . 51
D.1 Background. 51
D.2 Test outcomes . 51
D.3 Related tests. 51
D.4 Procedure . 51
Annex E (normative) Power supply requirements for testing . 52
E.1 Background. 52
E.2 Related tests. 52
E.3 Equipment requirements . 52
E.3.1 DC systems . 52
E.3.2 AC systems . 52
E.4 Reporting . 53
Annex F (normative) Visual screening . 54
F.1 Background. 54
F.2 Test outcomes . 54
F.3 Related tests. 54
F.4 Procedure . 54
F.4.1 Properties, features, and information . 54
F.4.2 Specifications . 56
F.4.3 Functionality and internal inspection . 57
F.5 Reporting . 58
Annex G (normative) Sample preparation . 61
G.1 Background. 61
G.2 Test outcomes . 61
G.3 Related tests. 61
G.4 Procedure . 61
G.4.1 General . 61
G.4.2 Equipment requirements . 61
G.4.3 Test prerequisites . 62
G.4.4 Procedure . 62
G.5 Calculations . 63
G.6 Reporting . 63
Annex H (normative) Voltage and frequency settings, voltage measurement points,
and product stabilization procedures . 64
H.1 Background. 64
...

IEC TS 62257-12-1 ®
Edition 3.0 2020-05
REDLINE VERSION
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural
electrification –
Part 12-1: Selection Laboratory evaluation of lamps and lighting appliances
for off-grid electricity systems

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
IEC TS 62257-12-1 ®
Edition 3.0 2020-05
REDLINE VERSION
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural

electrification –
Part 12-1: Selection Laboratory evaluation of lamps and lighting appliances

for off-grid electricity systems

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-8400-1

– 2 – IEC TS 62257-12-1:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 7
INTRODUCTION . 10
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
4 Characteristics of lamps and lighting appliances . 17
4.1 Product categories . 17
4.2 System measurements and observations . 18
4.2.1 General . 18
4.2.2 Design, manufacture, and marketing . 18
4.2.3 Durability and workmanship . 19
4.2.4 Electrical characteristics . 22
4.2.5 Photometric performance measures . 23
4.2.6 Photometric durability measures . 24
4.2.7 Self-declaration aspects . 24
5 Product specification . 25
5.1 General . 25
5.2 Applications . 26
5.3 Quality assurance principles . 26
5.3.1 General . 26
5.3.2 Rationale for dividing quality, warranty, and performance . 26
5.4 Product specification framework description . 27
5.4.1 General . 27
5.4.2 Product specification template . 27
5.4.3 Tolerances . 30
5.4.4 Quality standards criteria . 31
5.4.5 Warranty requirements criteria . 36
5.4.6 Performance criteria . 36
6 Quality test method (QTM) . 38
6.1 General . 38
6.2 Applications . 39
6.3 Sampling requirements . 39
6.4 Laboratory requirements . 39
6.5 Testing requirements . 39
6.6 Recommended test programme . 41
6.6.1 General . 41
6.6.2 Reporting . 44
7 Market check method (MCM) . 44
7.1 General . 44
7.2 Applications . 45
7.3 Sampling requirements . 45
7.4 Laboratory requirements . 45
7.5 Testing requirements . 46
7.6 Recommended tests programme . 47
7.7 Report requirements . 47

Annex A (informative) Example quality standards and performance criteria for off-grid
lighting market support programme qualification and bulk procurement (“sample
tender”) qualification . 48
A.1 Overview. 48
A.2 Test requirements . 48
A.3 Quality standards . 48
A.4 Warranty requirements . 50
A.5 Performance criteria . 50
Annex B (informative) Example quality standards, warranty requirements, and
performance criteria for bulk procurement qualification (“sample tender”) Reserved . 52
Annex C (normative) Manufacturer self-reported information . 55
C.1 Background. 55
C.2 Outcomes . 55
C.3 Solicited information . 55
Annex D (normative) Product sampling . 56
D.1 Background. 56
D.2 Test outcomes . 56
D.3 Related tests. 56
D.4 Procedure . 56
Annex E (normative) Power supply requirements for testing . 57
E.1 Background. 57
E.2 Related tests. 57
E.3 Equipment requirements . 57
E.3.1 DC systems . 57
E.3.2 AC systems . 57
E.4 Reporting . 58
Annex F (normative) Visual screening . 59
F.1 Background. 59
F.2 Test outcomes . 59
F.3 Related tests. 59
F.4 Procedure . 59
F.4.1 Properties, features, and information . 59
F.4.2 Specifications . 61
F.4.3 Functionality and internal inspection . 62
F.5 Reporting . 63
Annex G (normative) Sample preparation . 66
G.1 Background. 66
G.2 Test outcomes . 66
G.3 Related tests. 66
G.4 Procedure . 66
G.4.1 General . 66
G.4.2 Equipment requirements . 66
G.4.3 Test prerequisites . 67
G.4.4 Procedure . 67
G.5 Calculations . 68
G.6 Reporting . 68
Annex H (normative) Voltage and frequency settings, voltage measurement points,
and product stabilization procedures . 69
H.1 Background.
...