IEC TS 62257-9-5:2018

Recommendations for renewable energy and hybrid systems for rural electrification - Part 9-5: Integrated systems - Laboratory evaluation of stand-alone renewable energy products for rural electrification

IEC TS 62257-9-5:2018 applies to stand-alone renewable energy products. This document deals essentially with off-grid renewable energy products with batteries and solar modules with DC system voltages not exceeding 35 V and peak power ratings not exceeding 350 W. The tests contained herein are capable in many cases of adequately assessing systems at higher voltages and/or power ratings. This new edition includes the following significant technical changes with respect to the previous edition:
- replaced the term "stand-alone lighting kits" with "stand-alone renewable energy products" throughout the document (including the title) to reflect that the revised document is applicable to a broader range of products with a more diverse set of capabilities.
- added test methods for flooded lead-acid batteries.
- significantly revised the protection tests, assessment of DC ports, appliance tests, and energy service calculations based on field experience.
- revised the voltage operating points at which testing is carried out to better reflect actual operation and to simplify the procedures for testing products without lights.
- revised the energy service calculations to include the effect of multiple simultaneously connected loads on the port voltage and battery-to-port efficiency and to accommodate products with grid or electromechanical charging.

General Information

• Status: Published
• Publication Date: 11-Jun-2018
• 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: 04-Jun-2018
• Completion Date: 12-Jun-2018

Relations

• Revises: IEC TS 62257-9-5:2016 - Recommendations for renewable energy and hybrid systems for rural electrification - Part 9-5: Integrated systems - Selection of stand-alone lighting kits for rural electrification
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC TS 62257-9-5 ®
Edition 4.0 2018-06
TECHNICAL
SPECIFICATION
Recommendations for renewable energy and hybrid systems for rural
electrification –
Part 9-5: Integrated systems – Laboratory evaluation of stand-alone renewable
energy products for rural electrification

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 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 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
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The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

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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 62257-9-5 ®
Edition 4.0 2018-06
TECHNICAL
SPECIFICATION
Recommendations for renewable energy and hybrid systems for rural

electrification –
Part 9-5: Integrated systems – Laboratory evaluation of stand-alone renewable

energy products for rural electrification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-5693-0

– 2 – IEC TS 62257-9-5:2018  IEC 2018
CONTENTS
FOREWORD . 15
INTRODUCTION . 18
1 Scope . 19
2 Normative references . 19
3 Terms and definitions . 21
4 Product components and characteristics . 25
4.1 Components . 25
4.1.1 Overview . 25
4.1.2 Component categories . 26
4.1.3 Lighting parts definitions . 28
4.1.4 Appliance definitions. 29
4.1.5 Additional system elements . 30
4.2 System measurements and observations . 30
4.2.1 General . 30
4.2.2 Product design, manufacture, and marketing aspects . 30
4.2.3 Product durability and workmanship aspects. 33
4.2.4 Lighting durability aspects . 36
4.2.5 Battery performance aspects . 36
4.2.6 Solar module aspects . 37
4.2.7 Electrical characteristics . 38
4.2.8 Performance aspects . 39
4.2.9 Light output aspects . 41
4.2.10 Self-certification aspects. 42
4.3 Constructions not specifically covered . 43
5 Product specification . 43
5.1 General . 43
5.2 Applications . 43
5.3 Quality assurance principles . 44
5.4 Product specification framework description. 44
5.4.1 General . 44
5.4.2 Product specification template . 45
5.4.3 Tolerances . 49
5.4.4 Quality standards criteria . 50
5.4.5 Warranty requirements criteria . 55
6 Quality test method . 56
6.1 General . 56
6.2 Applications . 56
6.3 Sampling requirements . 56
6.4 Laboratory requirements . 57
6.5 Testing requirements . 57
6.6 Recommended tests programme . 64
6.6.1 General . 64
6.6.2 Test preparation . 67
6.6.3 Batch A tests . 67
6.6.4 Batch B tests . 67
6.6.5 Batch C – potentially destructive tests . 67

6.6.6 Report preparation . 68
6.7 Reporting . 68
7 Market check method . 68
7.1 General . 68
7.2 Applications . 69
7.3 Sampling requirements . 69
7.4 Laboratory requirements . 70
7.5 Testing requirements . 70
7.6 Recommended tests programme . 70
7.7 Report requirements . 70
8 Initial screening method . 71
8.1 General . 71
8.2 Applications . 71
8.3 Sampling requirements . 71
8.4 Laboratory requirements . 72
8.5 Testing requirements . 72
8.6 Recommended tests programme . 72
8.7 Reporting . 72
9 Accelerated verification method . 72
9.1 General . 72
9.2 Applications . 73
9.3 Sampling requirements . 73
9.3.1 General . 73
9.3.2 Verification entry testing . 73
9.3.3 Follow-up testing . 74
9.4 Laboratory requirements . 74
9.5 Testing requirements . 74
9.5.1 General . 74
9.5.2 Verification entry testing . 75
9.5.3 Follow-up QTM testing . 75
9.6 Recommended tests programme . 75
9.7 Report requirements . 75
10 Pay-as-you-go (PAYG) method . 76
10.1 General . 76
10.2 Applications . 76
10.3 Sampling requirements . 76
10.4 Laboratory requirements . 77
10.5 Testing requirements . 77
10.6 Recommended tests programme . 78
10.7 Reporting . 78
Annex A (informative) Reserved . 79
Annex B (informative) Reserved . 80
Annex C (informative) Reserved . 81
Annex D (normative) Manufacturer self-reported information. 82
D.1 Background .
...

IEC TS 62257-9-5 ®
Edition 4.0 2018-06
REDLINE VERSION
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural
electrification –
Part 9-5: Integrated systems – Selection of stand alone lighting kits Laboratory
evaluation of stand-alone renewable energy products for rural electrification

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 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 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. 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 62257-9-5 ®
Edition 4.0 2018-06
REDLINE VERSION
TECHNICAL
SPECIFICATION
colour
inside
Recommendations for renewable energy and hybrid systems for rural

electrification –
Part 9-5: Integrated systems – Selection of stand alone lighting kits Laboratory

evaluation of stand-alone renewable energy products for rural electrification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-5821-7

– 2 – IEC TS 62257-9-5:2018 RLV  IEC 2018
CONTENTS
FOREWORD . 15
INTRODUCTION . 18
1 Scope . 20
2 Normative references . 20
3 Terms and definitions . 22
4 System limits Product components and characteristics . 27
4.1 Components . 27
4.1.1 Overview . 27
4.1.2 Component categories . 28
4.1.3 Lighting parts definitions . 30
4.1.4 Appliance definitions. 31
4.1.5 Additional system elements . 32
4.2 System measurements and observations . 32
4.2.1 General . 32
4.2.2 Product design, manufacture, and marketing aspects . 33
4.2.3 Product durability and workmanship aspects. 36
4.2.4 Lighting durability aspects . 39
4.2.5 Battery performance aspects . 40
4.2.6 Solar module aspects . 41
4.2.7 Electrical characteristics . 42
4.2.8 Performance aspects . 43
4.2.9 Light output aspects . 46
Battery-charging circuit efficiency .
4.2.10 Self-certification aspects. 47
4.3 Constructions not specifically covered . 48
5 Product specification . 48
5.1 General . 48
5.2 Applications . 49
5.3 Quality assurance principles . 49
5.4 Product specification framework description. 49
5.4.1 General . 49
5.4.2 Product specification template . 50
5.4.3 Tolerances . 53
5.4.4 Quality standards criteria . 54
5.4.5 Warranty requirements criteria . 59
6 Quality test method . 60
6.1 General . 60
6.2 Applications . 60
6.3 Sampling requirements . 60
6.4 Laboratory requirements . 61
6.5 Testing requirements . 61
6.6 Recommended tests programme . 71
6.6.1 General . 71
6.6.2 Test preparation . 74
6.6.3 Batch A tests . 74
6.6.4 Batch B tests . 77

6.6.5 Batch C – potentially destructive tests . 77
6.6.6 Report preparation . 78
6.7 Reporting . 78
7 Market check method . 79
7.1 General . 79
7.2 Applications . 79
7.3 Sampling requirements . 80
7.4 Laboratory requirements . 80
7.5 Testing requirements . 80
7.6 Recommended tests programme . 81
7.7 Report requirements . 81
8 Initial screening method . 81
8.1 General . 81
8.2 Applications . 81
8.3 Sampling requirements . 82
8.4 Laboratory requirements . 82
8.5 Testing requirements . 82
8.6 Recommended tests programme . 85
8.7 Reporting . 85
9 Accelerated verification method . 86
9.1 General . 86
9.2 Applications . 86
9.3 Sampling requirements . 87
9.3.1 General . 87
9.3.2 Verification entry testing . 87
9.3.3 Follow-up QTM testing . 88
9.4 Laboratory requirements . 88
9.5 Testing requirements . 88
9.5.1 General . 88
9.5.2 Verification entry testing . 88
9.5.3 Follow-up QTM testing . 91
9.6 Recommended tests programme . 92
9.7 Report requirements . 92
Standardized specification sheets.
General .
Applications .
General .
Guidance .
Framework for SSS guidelines document .
10 Pay-as-you-go (PAYG) method . 97
10.1 General . 97
10.2 Applications . 98
10.3 Sampling requirements . 98
10.4 Laboratory requirements .
...