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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
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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
...