IEC TS 62257-12-1:2007

IEC/TS 62257-12-1 ®
Edition 1.0 2007-06
TECHNICAL
SPECIFICATION
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

IEC/TS 62257-12-1:2007(E)
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IEC/TS 62257-12-1 ®
Edition 1.0 2007-06
TECHNICAL
SPECIFICATION
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

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 27.160; 27.180 ISBN 2-8318-9191-4

– 2 – TS 62257-12-1 © IEC:2007(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references .7
3 Terms and definitions .7
4 Comparative tests for the selection of integral compact fluorescent lamps.9
4.1 Performance criteria .9
4.2 Comparative tests .10
4.2.1 Method of measuring lamp characteristics .10
4.2.2 Phase A: identification of potentially acceptable models of lamps .10
4.2.3 Phase B: electrical test.10
4.2.4 Phase C: Luminous efficacy test.12

Annex A (informative) Recommendations for luminaires.14
Annex B (normative) Device for illuminance measurement .17
Annex C (informative) Test circuits (examples) .18

Bibliography.19

Figure 1 – Lamps selection test programme.9
Figure 2 – Electrical characteristics test sequences .11
Figure 3 – Luminous efficacy test sequences.12
Figure B.1 – Outlines for a testing device for lamps .17
Figure C.1 – Suggested test circuit for Phase B .18
Figure C.2 – Suggested test circuit for Phase C.18

Table 1 – Tests list .10

TS 62257-12-1 © IEC:2007(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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

FOREWORD
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• the required support cannot be obtained for the publication of an International Standard,
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• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62257-12-1, which is a technical specification, has been prepared by IEC technical
committee 82: Solar photovoltaic energy systems.

– 4 – TS 62257-12-1 © IEC:2007(E)
This part of IEC 62257 is based on IEC/PAS 62111 (1999); it cancels and replaces the
relevant parts of IEC /PAS 62111.
This technical specification is to be used in conjunction with IEC 62257 series.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
82/464/DTS 82/478/RVC
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 62257 series, under the general title Recommendations for small
renewable energy and hybrid systems for rural electrification, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• transformed into an International Standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

TS 62257-12-1 © IEC:2007(E) – 5 –
INTRODUCTION
The IEC 62257 series intends to provide to different players involved in rural electrification
projects (such as project implementers, project contractors, project supervisors, installers,
etc.) documents for the setting up of renewable energy and hybrid systems with a.c. voltage
below 500 V, d.c. voltage below 750 V and power below 100 kVA.
These documents are recommendations:
• to choose the right system for the right place,
• to design the system,
• to operate and maintain the system.
These documents are focused only on rural electrification concentrating on but not specific to
developing countries. They must not be considered as all inclusive to rural electrification. The
documents try to promote the use of renewable energies in rural electrification; they do not
deal with clean mechanisms developments at this time (CO emission, carbon credit, etc.).
Further developments in this field could be introduced in future steps.
This consistent set of documents is best considered as a whole with different parts
corresponding to items for safety, sustainability of systems and at the lowest life cycle cost as
possible. One of the main objectives is to provide the minimum sufficient requirements,
relevant to the field of application that is: small renewable energy and hybrid off-grid systems.
The purpose of this part of IEC 62257 is to compile specifications and recommendations for
lighting materials, involved in decentralized rural electrification.
This document is also linked to other parts of IEC 62257 series namely IEC 62257-1, IEC
62257-2 to IEC 62257-6 and IEC 62257-7 to IEC 62257-13.

– 6 – TS 62257-12-1 © IEC:2007(E)
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

1 Scope
Decentralized Rural Electrification Systems (DRES) are designed to supply electric power to
sites which are not connected to a large interconnected system, or a national grid.
As described in the IEC 62257-1, these systems include:
• an electrical power production subsystem;
• a secondary grid for sharing/distributing this power, when the system is a collective
electrification system (microgrid);
• a subsystem for utilizing this electrical power as a demand subsystem including the in-
house wiring and user’s electrical appliances.
In many situations, lighting is the most expected application of the rural electrification process

an
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