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

IEC TS 62257-12-1:2015(E) applies to lamps and lighting appliances for off-grid electricity systems with the following characteristics:
- The power supply is AC or DC:
- AC nominal voltages up to 250 V;
- DC nominal voltages up to 48 V. The light source is CFL, linear fluorescent, or LED. Operation of the lamp or lighting appliance does not require any components to be supplied by the testing laboratory other than lampholders, wire, connectors, and a power supply. The lamp or lighting appliance does not include a battery or energy source (for example, a photovoltaic module or electromechanical generator). This new edition includes the following significant technical changes with respect to the previous edition: Overall, the narrow focus on the needs of bulk procurement programmes has been shifted to a wider framework for structuring quality assurance using appropriate methods for a range of stakeholders including governments, manufacturers, buyers, and others. The scope has been expanded from self-ballasted compact fluorescent lamps to include DC products and lighting appliances with LED, compact fluorescent, or linear fluorescent light sources.
This publication is to be read in conjunction with IEC 62257 series.

General Information

• Status: Published
• Publication Date: 22-Oct-2015
• 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: DELPUB - Deleted Publication
• Start Date: 01-Apr-2019
• Completion Date: 25-May-2020

Relations

• Revises: IEC TS 62257-12-1:2007 - Recommendations for small renewable energy and hybrid systems for rural electrification - Part 12-1: Selection of self-ballasted lamps (CFL) for rural electrification systems and recommendations for household lighting equipment
• Effective Date: 05-Sep-2023
• Revised: 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
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC TS 62257-12-1 ®
Edition 2.0 2015-10
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural
electrification –
Part 12-1: Selection 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 Fax: [phone]

CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

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details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC TS 62257-12-1 ®
Edition 2.0 2015-10
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural

electrification –
Part 12-1: Selection of lamps and lighting appliances for off-grid electricity

systems
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-2965-1

– 2 – IEC TS 62257-12-1:2015 © IEC 2015

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 . 17
4.2.1 General . 17
4.2.2 Design, manufacture, and marketing . 17
4.2.3 Durability and workmanship . 19
4.2.4 Electrical characteristics . 21
4.2.5 Photometric performance measures . 22
4.2.6 Photometric durability measures . 23
4.2.7 Self-declaration aspects . 24
5 Product specification . 24
5.1 General . 24
5.2 Applications . 25
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 . 26
5.4.1 General . 26
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 . 42
6.6.1 General . 42
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 . 48

Annex A (informative) Example quality standards and performance criteria for off-grid

lighting market support programme qualification . 49

A.1 Overview. 49

A.2 Test requirements . 49

A.3 Quality standards . 49

A.4 Warranty requirements . 51

A.5 Performance criteria . 51

Annex B (informative) Example quality standards, warranty requirements, and

performance criteria for bulk procurement qualification (“sample tender”) . 52

B.1 Overview. 52

B.2 Test requirements . 52
B.3 Product category requirements . 52
B.4 Quality standards . 52
B.5 Warranty requirements . 54
B.6 Performance criteria . 54
B.7 Performance criteria tolerance . 54
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.
...

IEC TS 62257-12-1 ®
Edition 2.0 2015-10
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural
electrification –
Part 12-1: Selection 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 Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC TS 62257-12-1 ®
Edition 2.0 2015-10
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural

electrification –
Part 12-1: Selection of lamps and lighting appliances for off-grid electricity

systems
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-2965-1

– 2 – IEC TS 62257-12-1:2015 © IEC 2015
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 . 17
4.2.1 General . 17
4.2.2 Design, manufacture, and marketing . 17
4.2.3 Durability and workmanship . 19
4.2.4 Electrical characteristics . 21
4.2.5 Photometric performance measures . 22
4.2.6 Photometric durability measures . 23
4.2.7 Self-declaration aspects . 24
5 Product specification . 24
5.1 General . 24
5.2 Applications . 25
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 . 26
5.4.1 General . 26
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 . 42
6.6.1 General . 42
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 . 48

Annex A (informative) Example quality standards and performance criteria for off-grid
lighting market support programme qualification . 49
A.1 Overview. 49
A.2 Test requirements . 49
A.3 Quality standards . 49
A.4 Warranty requirements . 51
A.5 Performance criteria . 51
Annex B (informative) Example quality standards, warranty requirements, and
performance criteria for bulk procurement qualification (“sample tender”) . 52
B.1 Overview. 52
B.2 Test requirements . 52
B.3 Product category requirements . 52
B.4 Quality standards . 52
B.5 Warranty requirements . 54
B.6 Performance criteria . 54
B.7 Performance criteria tolerance . 54
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 .
...