IEC TS 62257-9-5:2018
(Main)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
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
- Technical Committee
- TC 82 - Solar photovoltaic energy systems
- Drafting Committee
- JWG 1 - TC 82/JWG 1
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 11-Dec-2024
- Completion Date
- 25-Oct-2019
Relations
- Effective Date
- 05-Sep-2023
- Effective Date
- 05-Sep-2023
Overview
IEC TS 62257-9-5:2018 is an IEC Technical Specification that defines laboratory evaluation methods for stand‑alone renewable energy products used in rural electrification. Edition 4.0 (2018) covers off‑grid products combining batteries and solar modules with DC system voltages up to 35 V and peak power ratings up to 350 W (tests may also be applicable to higher voltages/power). The document provides test procedures, sampling rules and reporting formats to evaluate performance, durability, safety and energy‑service delivery of small off‑grid systems.
Key Topics and Requirements
- Scope and terminology: replaces “stand‑alone lighting kits” with the broader term stand‑alone renewable energy products, reflecting expanded capabilities.
- Battery testing: adds specific test methods for flooded lead‑acid batteries and addresses battery performance and longevity.
- Protection and electrical tests: revised protection tests, assessment of DC ports, appliance compatibility tests, and electrical characteristic measurements.
- Energy service calculations: updated to include effects of multiple simultaneously connected loads, port voltage behavior and battery‑to‑port efficiency, and to handle products with grid or electromechanical charging.
- Voltage operating points: simplified and revised to better reflect real operating conditions and to ease testing of products without integrated lighting.
- Quality assurance & sampling: structured product specification templates, quality test methods, market check, initial screening, accelerated verification, and pay‑as‑you‑go (PAYG) testing procedures.
- Annexes and test setup: detailed normative annexes for manufacturer self‑reporting, sampling, visual screening, sample preparation and power supply setup for photometric/lumen tests.
Applications
- Developing laboratory test plans and test reports for small off‑grid solar systems.
- Defining procurement specifications and acceptance criteria for NGOs, government rural electrification programs and donors.
- Supporting product quality assurance, certification pilots and aftermarket verification (market checks).
- Guiding manufacturers on design verification and PAYG providers on evaluation of systems used in pay‑per‑use deployments.
- Informing technical due diligence in product selection for microgrids, solar home systems and productive‑use appliances.
Who would use this standard
- Test laboratories and certification bodies
- Manufacturers and component suppliers (batteries, solar modules, DC appliances)
- Procurement agencies, aid organizations and microfinance/PAYG companies
- Rural electrification project engineers and technical evaluators
Related standards (high level)
While IEC TS 62257‑9‑5 focuses on lab evaluation for small off‑grid products, users often consult related IEC/ISO standards on battery testing, photovoltaic module testing, safety and appliance performance for comprehensive compliance and product specification development.
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 RLV - 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 Released:6/12/2018 Isbn:9782832258217
Frequently Asked Questions
IEC TS 62257-9-5:2018 is a technical specification published by the International Electrotechnical Commission (IEC). Its full title is "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". This standard covers: 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.
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.
IEC TS 62257-9-5:2018 is classified under the following ICS (International Classification for Standards) categories: 27.160 - Solar energy engineering. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC TS 62257-9-5:2018 has the following relationships with other standards: It is inter standard links to IEC TS 62257-9-5:2024, IEC TS 62257-9-5:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase IEC TS 62257-9-5:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.
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.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
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.
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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: sales@iec.ch.
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 . 82
D.2 Outcomes . 82
D.3 Solicited information . 82
D.3.1 General . 82
– 4 – IEC TS 62257-9-5:2018 IEC 2018
D.3.2 Confidential information (not released publicly). 82
D.3.3 Public information (may be released publicly) . 84
D.4 Reporting . 86
Annex E (normative) Product sampling . 87
E.1 Background . 87
E.2 Test outcomes . 87
E.3 Related tests . 87
E.4 Procedure . 87
E.4.1 Retail sampling . 87
E.4.2 Warehouse sampling . 88
E.5 Reporting . 89
Annex F (normative) Visual screening . 91
F.1 Background . 91
F.2 Test outcomes . 91
F.3 Related tests . 91
F.4 Procedure . 91
F.4.1 Properties, features, and information . 91
F.4.2 Specifications . 96
F.4.3 Functionality and internal inspection . 99
F.5 Reporting . 102
Annex G (normative) Sample preparation . 106
G.1 Background . 106
G.2 Test outcomes . 106
G.3 Related tests . 106
G.4 Procedure . 106
G.4.1 General . 106
G.4.2 Equipment requirements . 106
G.4.3 Test prerequisites . 107
G.4.4 Procedure . 107
G.4.5 Calculations . 110
G.5 Reporting . 110
Annex H (normative) Power supply setup procedure . 111
H.1 Background . 111
H.2 Test outcomes . 111
H.3 Related tests . 111
H.4 Equipment requirements . 111
H.5 Setup procedure for photometric measurements and lumen maintenance
tests . 112
H.5.1 Test setup . 112
H.5.2 DC voltage and current levels . 113
H.5.3 Stabilization period . 114
H.5.4 4-wire power supply measurements . 114
H.5.5 Filtering electronic noise . 115
H.5.6 Troubleshooting . 115
H.6 Reporting . 117
Annex I (normative) Light output test . 118
I.1 Background . 118
I.2 Test outcomes . 118
I.3 Related tests . 118
I.4 Luminous flux measurement techniques . 119
I.4.1 General . 119
I.4.2 Calculation for lighting appliances tested according to IEC TS 62257-
12-1 . 119
I.4.3 Luminous flux measurements with an integrating sphere or
goniophotometer . 120
I.4.4 Luminous flux measurements using the multi-plane method . 120
I.5 Correlated colour temperature (CCT) measurement . 123
I.6 Colour rendering index (CRI) measurement . 123
I.7 Reporting . 123
Annex J (normative) Lumen maintenance test . 124
J.1 Background . 124
J.2 Test outcomes . 124
J.3 Related tests . 125
J.4 Procedure . 125
J.4.1 General . 125
J.4.2 Equipment requirements . 126
J.4.3 Test prerequisites . 127
J.4.4 Test methods . 127
J.5 Calculations . 128
J.6 Alternate method for testing lumen maintenance using IESNA LM-80-08 . 128
J.6.1 Background . 128
J.6.2 Equipment requirements . 129
J.6.3 Test prerequisites . 129
J.6.4 Procedure . 129
J.6.5 DUT preparation and LED thermocouple attachment guidelines . 130
J.6.6 Calculations . 130
J.7 Reporting . 130
Annex K (normative) Battery test . 133
K.1 Background . 133
K.2 Test outcomes . 133
K.3 Related tests . 133
K.4 Procedure . 133
K.4.1 General . 133
K.4.2 Lead-acid battery test . 134
K.4.3 Nickel-metal hydride battery test . 137
K.4.4 Lithium-ion battery test . 138
K.4.5 Lithium iron phosphate battery test . 139
K.5 Reporting . 140
Annex L (informative) Battery testing recommended practices . 141
L.1 Background . 141
L.2 Deep discharge protection specifications by battery type . 141
L.3 Overcharge protection specifications by battery type . 142
Annex M (normative) Full-battery run time test . 143
M.1 Background . 143
M.2 Test outcomes . 143
– 6 – IEC TS 62257-9-5:2018 IEC 2018
M.3 Related tests . 144
M.4 Equipment requirements . 144
M.5 Test prerequisites . 145
M.6 Apparatus . 145
M.7 Procedure . 146
M.8 Calculations . 149
M.9 Reporting . 151
Annex N (normative) Full discharge preparation . 153
N.1 Background . 153
N.2 Test outcomes . 153
N.3 Related tests . 153
N.4 Procedure . 153
N.4.1 General . 153
N.4.2 Equipment requirements . 153
N.4.3 Test prerequisites . 153
N.4.4 Procedure . 154
N.4.5 Calculations . 155
N.5 Reporting . 155
Annex O (normative) Grid charge test . 156
O.1 Background . 156
O.2 Test outcomes . 156
O.3 Related tests . 156
O.4 Procedure . 156
O.4.1 General . 156
O.4.2 Equipment requirements . 156
O.4.3 Test prerequisites . 157
O.4.4 Apparatus . 157
O.4.5 Procedure . 157
O.4.6 Calculations . 157
O.5 Reporting . 158
Annex P (normative) Electromechanical charge test . 159
P.1 Background . 159
P.2 Test outcomes . 159
P.3 Related tests . 159
P.4 Procedure . 159
P.4.1 General . 159
P.4.2 Equipment requirements . 159
P.4.3 Test prerequisites . 160
P.4.4 Apparatus . 160
P.4.5 Procedure . 160
P.4.6 Calculations . 160
P.4.7 Modifications for atypical products . 160
P.5 Reporting . 161
Annex Q (normative) Photovoltaic module I-V characteristics test . 162
Q.1 Background . 162
Q.2 Test outcomes . 162
Q.3 Related tests . 163
Q.4 Procedure . 163
Q.4.1 Substitution of IEC 61215-2 test results . 163
Q.4.2 Test programme using a solar simulator . 164
Q.4.3 Outdoor photovoltaic module I-V characteristics test. 166
Q.5 Reporting . 171
Annex R (normative) Solar charge test. 172
R.1 Background . 172
R.2 Test outcomes . 172
R.3 Related tests . 172
R.4 Procedure . 173
R.4.1 General . 173
R.4.2 Test method using a resistor network . 173
R.4.3 Test method using a solar array simulator (SAS) . 180
R.4.4 Calculations . 181
R.4.5 Alternative method to measure battery-charging circuit efficiency . 189
R.5 Reporting . 190
Annex S (normative) Charge controller behaviour test . 193
S.1 Background . 193
S.2 Test outcomes . 193
S.3 Related tests . 194
S.4 Procedure . 194
S.4.1 Active deep discharge protection test . 194
S.4.2 Active overcharge protection test . 196
S.4.3 Passive deep discharge protection test . 200
S.4.4 Passive overcharge protection test . 202
S.4.5 Standby loss measurement . 204
S.5 Reporting . 205
Annex T (normative) Light distribution test . 207
T.1 Background . 207
T.2 Test outcomes . 207
T.3 Related tests . 208
T.4 Substitution of results from IEC TS 62257-12-1. 208
T.5 Approved test methods . 208
T.5.1 General . 208
T.5.2 Goniophotometer . 211
T.5.3 Multi-plane method . 211
T.5.4 Illuminance on a plane method . 215
T.5.5 Turntable method . 218
T.5.6 Illuminance on a desktop method . 220
T.6 Reporting . 221
Annex U (normative) Physical and water ingress protection test . 226
U.1 Background . 226
U.2 Test outcomes . 226
U.3 Related tests . 227
U.4 Procedure . 227
U.4.1 General . 227
U.4.2 IP testing at a laboratory that has been accredited to test according to
IEC 60529 . 227
U.4.3 Simplified IP inspection for ingress of solid foreign objects . 228
– 8 – IEC TS 62257-9-5:2018 IEC 2018
U.4.4 Simplified IP preliminary inspection for ingress of water with harmful
effects . 229
U.5 Reporting . 232
Annex V (normative) Level of water protection . 233
V.1 Background . 233
V.2 Test outcomes . 233
V.3 Related tests . 234
V.4 Laboratory requirements . 234
V.5 Procedure . 234
V.5.1 General . 234
V.5.2 Level of water protection for enclosure only . 235
V.5.3 Level of water protection from technical aspects . 235
V.5.4 Overall level of water protection . 238
V.6 Reporting . 239
Annex W (normative) Mechanical durability test . 241
W.1 Background . 241
W.2 Test outcomes . 241
W.3 Related tests . 242
W.4 Procedures . 242
W.4.1 Drop test . 242
W.4.2 Switch and connector test . 244
W.4.3 Gooseneck and moving part test . 245
W.4.4 Strain relief test . 246
W.5 Reporting . 248
Annex X (informative) Reserved . 250
Annex Y (informative) Photometer box for relative luminous flux measurements . 251
Y.1 Background . 251
Y.2 Plans . 252
Y.3 Instructions for construction . 255
Annex Z (informative) Reserved . 256
Annex AA (informative) Reserved . 257
Annex BB (normative) Battery durability test . 258
BB.1 Background . 258
BB.2 Test outcomes . 258
BB.3 Related tests . 258
BB.4 Procedure . 258
BB.4.1 Durability storage test for valve-regulated lead-acid batteries . 258
BB.4.2 Durability storage test for flooded lead-acid batteries . 259
BB.4.3 Durability storage test for nickel-metal hydride batteries . 260
BB.4.4 Durability storage test for lithium-ion batteries . 261
BB.4.5 Durability storage test for lithium iron phosphate batteries . 262
BB.5 Reporting . 263
Annex CC (normative) Equipment requirements . 264
CC.1 Overview . 264
CC.2 Requirements and recommendations for equipment and materials . 264
CC.3 Guidelines for electrical power measurements . 275
CC.3.1 Background . 275
CC.3.2 Overview of DC power measurement . 275
CC.3.3 Power measurement accuracy recommendations . 277
CC.3.4 Additional guidelines and corrective measures . 278
Annex DD (normative) Protection tests . 279
DD.1 Background . 279
DD.2 Test outcomes . 279
DD.3 Related tests .
...
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.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
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: sales@iec.ch.
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 . 98
10.5 Testing requirements . 98
10.6 Recommended tests programme . 100
10.7 Reporting . 100
– 4 – IEC TS 62257-9-5:2018 RLV IEC 2018
Annex A (informative) Recommended quality standards for off-grid lighting market
support programme qualification Reserved . 101
Annex B (informative) Reserved . 105
Annex C (informative) Recommended SSS guidelines Reserved . 106
Annex D (normative) Manufacturer self-reported information. 115
D.1 Background . 115
D.2 Outcomes . 115
D.3 Solicited information . 115
D.3.1 General . 115
D.3.2 Confidential information (not released publicly). 115
D.3.3 Public information (may be released publicly) . 117
D.4 Reporting . 119
Annex E (normative) Product sampling . 121
E.1 Background . 121
E.2 Test outcomes . 121
E.3 Related tests . 121
E.4 Procedure . 121
E.4.1 Retail sampling . 121
E.4.2 Warehouse sampling . 122
E.5 Reporting . 123
Annex F (normative) Visual screening . 125
F.1 Background . 125
F.2 Test outcomes . 125
F.3 Related tests . 125
F.4 Procedure . 125
F.4.1 Properties, features, and information . 125
F.4.2 Specifications . 131
F.4.3 Functionality and internal inspection . 133
F.5 Reporting . 136
Annex G (normative) Sample preparation . 141
G.1 Background . 141
G.2 Test outcomes . 141
G.3 Related tests . 141
G.4 Procedure . 141
G.4.1 General . 141
G.4.2 Equipment requirements . 141
G.4.3 Test prerequisites . 142
G.4.4 Procedure . 142
G.4.5 Calculations . 145
G.5 Reporting . 145
Annex H (normative) Power supply setup procedure . 146
H.1 Background . 146
H.2 Test outcomes . 146
H.3 Related tests . 146
H.4 Equipment requirements . 146
H.5 Setup procedure for photometric measurements and lumen maintenance
tests . 147
H.5.1 Test setup . 147
H.5.2 DC voltage and current levels . 148
H.5.3 Stabilization period . 149
H.5.4 4-wire power supply measurements . 149
H.5.5 Filtering electronic noise . 150
H.5.6 Troubleshooting . 150
H.6 Reporting . 153
Annex I (normative) Light output test . 154
I.1 Background . 154
I.2 Test outcomes . 154
I.3 Related tests . 154
I.4 Luminous flux measurement techniques . 155
I.4.1 General . 155
I.4.2 Calculation for lighting appliances tested according to IEC TS 62257-
12-1 . 156
I.4.3 Luminous flux measurements with an integrating sphere or
goniophotometer . 156
I.4.4 Luminous flux measurements using the multi-plane method . 156
I.5 Correlated colour temperature (CCT) measurement . 159
I.6 Colour rendering index (CRI) measurement . 159
I.7 Reporting . 159
Annex J (normative) Lumen maintenance test . 161
J.1 Background . 161
J.2 Test outcomes . 161
J.3 Related tests . 162
J.4 Procedure . 162
J.4.1 General . 162
J.4.2 Equipment requirements . 166
Full screening .
J.4.3 Test prerequisites . 166
J.4.4 Test methods . 166
J.5 Calculations . 169
J.6 Alternate method for testing lumen maintenance using IESNA LM-80-08 . 169
J.6.1 Background . 169
J.6.2 Equipment requirements . 170
J.6.3 Test prerequisites . 170
J.6.4 Procedure . 170
J.6.5 DUT preparation and LED thermocouple attachment guidelines . 171
J.6.6 Calculations . 171
J.7 Reporting . 172
Annex K (normative) Battery test . 174
K.1 Background . 174
K.2 Test outcomes . 174
K.3 Related tests . 174
K.4 Procedure . 174
K.4.1 General . 174
K.4.2 Valve-regulated Lead-acid battery test . 175
K.4.3 Nickel-metal hydride battery test . 178
K.4.4 Lithium-ion battery test . 180
K.4.5 Lithium iron phosphate battery test . 181
– 6 – IEC TS 62257-9-5:2018 RLV IEC 2018
K.5 Reporting . 182
Annex L (informative) Battery testing recommended practices . 184
L.1 Background . 184
L.2 Deep discharge protection specifications by battery type . 184
L.3 Overcharge protection specifications by battery type . 185
Annex M (normative) Full-battery run time test . 186
M.1 Background . 186
M.2 Test outcomes . 187
M.3 Related tests . 188
M.4 Equipment requirements . 189
M.5 Test prerequisites . 189
M.6 Apparatus . 189
M.7 Procedure . 190
M.8 Calculations . 197
M.9 Reporting . 200
Annex N (normative) Full discharge preparation . 202
N.1 Background . 202
N.2 Test outcomes . 202
N.3 Related tests . 202
N.4 Procedure . 202
N.4.1 General . 202
N.4.2 Equipment requirements . 202
N.4.3 Test prerequisites . 203
N.4.4 Procedure . 203
N.4.5 Calculations . 205
N.5 Reporting . 205
Annex O (normative) Grid charge test . 206
O.1 Background . 206
O.2 Test outcomes . 206
O.3 Related tests . 206
O.4 Procedure . 206
O.4.1 General . 206
O.4.2 Equipment requirements . 206
O.4.3 Test prerequisites . 207
O.4.4 Apparatus . 207
O.4.5 Procedure . 207
O.4.6 Calculations . 207
O.5 Reporting . 208
Annex P (normative) Electromechanical charge test . 209
P.1 Background . 209
P.2 Test outcomes . 209
P.3 Related tests . 209
P.4 Procedure . 209
P.4.1 General . 209
P.4.2 Equipment requirements . 209
P.4.3 Test prerequisites . 210
P.4.4 Apparatus . 210
P.4.5 Procedure . 210
P.4.6 Calculations . 210
P.4.7 Modifications for atypical products . 210
P.5 Reporting . 211
Annex Q (normative) Photovoltaic module I-V characteristics test . 212
Q.1 Background . 212
Q.2 Test outcomes . 212
Q.3 Related tests . 213
Q.4 Procedure . 213
Q.4.1 Testing using IEC 61215 (all parts) Substitution of IEC 61215-2 test
results . 213
Q.4.2 Test programme using a solar simulator . 214
Q.4.3 Outdoor photovoltaic module I-V characteristics test. 216
Q.5 Reporting . 221
Annex R (normative) Solar charge test. 223
R.1 Background . 223
R.2 Test outcomes . 223
R.3 Related tests . 224
R.4 Procedure . 224
R.4.1 General . 224
R.4.2 Test method using a resistor network . 224
R.4.3 Test method using a solar array simulator (SAS) . 231
R.4.4 Calculations . 232
R.4.5 Alternative method to measure battery-charging circuit efficiency . 240
R.5 Reporting . 242
Annex S (normative) Charge controller behaviour test . 245
S.1 Background . 245
S.2 Test outcomes . 245
S.3 Related tests . 246
S.4 Procedure . 247
S.4.1 Active deep discharge protection test . 247
S.4.2 Active overcharge protection test . 248
S.4.3 Passive deep discharge protection test . 253
S.4.4 Passive overcharge protection test . 255
S.4.5 Standby loss measurement . 257
S.5 Reporting . 258
Annex T (normative) Light distribution test . 260
T.1 Background . 260
T.2 Test outcomes . 260
T.3 Related tests . 261
T.4 Substitution of results from IEC TS 62257-12-1. 261
T.5 Approved test methods . 261
T.5.1 General . 261
T.5.2 Goniophotometer . 265
T.5.3 Multi-plane method . 265
T.5.4 Illuminance on a plane method . 270
T.5.5 Turntable method . 273
T.5.6 Illuminance on a desktop method . 275
T.6 Reporting . 277
Annex U (normative) Physical and water ingress protection test . 281
– 8 – IEC TS 62257-9-5:2018 RLV IEC 2018
U.1 Background . 281
U.2 Test outcomes . 281
U.3 Related tests . 282
U.4 Procedure . 282
U.4.1 General . 282
U.4.2 IP testing at a laboratory that has been accredited to test according to
IEC 60529 . 282
U.4.3 Simplified IP inspection for ingress of solid foreign objects . 283
U.4.4 Simplified IP preliminary inspection for ingress of water with harmful
effects . 284
U.5 Reporting . 287
Annex V (normative) Level of water protection . 288
V.1 Background . 288
V.2 Test outcomes . 288
V.3 Related tests . 289
V.4 Laboratory requirements . 289
V.5 Procedure . 289
V.5.1 General . 289
V.5.2 Level of water protection for enclosure only . 290
V.5.3 Level of water protection from technical aspects . 290
V.5.4 Overall level of water protection . 293
V.6 Reporting . 294
Annex W (normative) Mechanical durability test . 296
W.1 Background . 296
W.2 Test outcomes . 296
W.3 Related tests . 297
W.4 Procedures . 297
W.4.1 Drop test . 297
W.4.2 Switch and connector test . 299
W.4.3 Gooseneck and moving part test . 300
W.4.4 Strain relief test . 301
W.5 Reporting . 303
Annex X (informative) Reserved . 305
Annex Y (informative) Photometer box for relative luminous flux measurements . 306
Y.1 Background . 306
Y.2 Plans . 307
Y.3 Instructions for construction . 310
Annex Z (informative) Photometer tube for relative luminous flux measurements
Reserved . 311
Annex AA (informative) Field testing method Reserved . 313
Annex BB (normative) Battery durability test . 319
BB.1 Background . 319
BB.2 Test outcomes . 319
BB.3 Related tests . 319
BB.4 Procedure . 319
BB.4.1 Durability storage test for valve-regulated lead-acid batteries . 319
BB.4.2 Durability storage test for flooded lead-acid batteries . 320
BB.4.3 Durability storage test for nickel-metal hydride batteries . 321
BB.4.4 Durability storage test for lithium-ion batteries . 322
BB.4.5 Durability storage test for lithium iron phosphate batteries . 323
BB.5 Reporting .
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