This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store.

IES LM-66-14

Approved Method: Electrical and Photometric Measurements of Single-Based Fluorescent Lamps This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store.

IES LM-66-14

IES Approved Method for the Electrical and Photometric Measurements of Single-Based Fluorescent Lamps

Prepared by the Subcommittee on The Subcommittee on Photometry of Light Sources of the IES Testing Procedures Committee This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store. IES LM-66-14

Copyright 2014 by the Illuminating Engineering Society of North America.

Approved by the IES Board of Directors December 30, 2014, as a Transaction of the Illuminating Engineering Society of North America.

All rights reserved. No part of this publication may be reproduced in any form, in any electronic retrieval system or otherwise, without prior written permission of the IES.

Published by the Illuminating Engineering Society of North America, 120 Wall Street, New York, New York 10005.

IES Standards and Guides are developed through committee consensus and produced by the IES Office in New York. Careful attention is given to style and accuracy. If any errors are noted in this document, please forward them to Rita Harrold, Director of Technology, at the above address for verification and correction. The IES welcomes and urges feedback and comments.

ISBN # 978-0-87995-304-1

Printed in the United States of America.

DISCLAIMER

IES publications are developed through the consensus standards development process approved by the American National Standards Institute. This process brings together volunteers represent- ing varied viewpoints and interests to achieve consensus on lighting recommendations. While the IES administers the process and establishes policies and procedures to promote fairness in the development of consensus, it makes no guaranty or warranty as to the accuracy or completeness of any information published herein. The IES disclaims liability for any injury to persons or prop- erty or other damages of any nature whatsoever, whether special, indirect, consequential or com- pensatory, directly or indirectly resulting from the publication, use of, or reliance on this document.

In issuing and making this document available, the IES is not undertaking to render professional or other services for or on behalf of any person or entity. Nor is the IES undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances.

The IES has no power, nor does it undertake, to police or enforce compliance with the contents of this document. Nor does the IES list, certify, test or inspect products, designs, or installations for compliance with this document. Any certification or statement of compliance with the require- ments of this document shall not be attributable to the IES and is solely the responsibility of the certifier or maker of the statement. This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store. IES LM-66-14

Prepared by the Subcommittee on Photometry of Light Sources

IES Testing Procedures Subcommittee

Greg McKee, Sub-Chair

L. Ayers* D. Ellis J. Leland* Y. Ohno* R. Bergman B. Feagin* J. Linquata* M. Piscitelli* E. Bretschneider* A. Gelder* S. Longo B. Rao* E.Carter* T. Henning* R. Low* S. Rao* D. Chan* P-C. Hung* V. Mahajan* M. Sapcoe G. Connelly* A. Jackson J. Marella V. Wu* R. Daubach* D. Karambelas* G. McKee* R. Young* J. Demirjian* T. Kawabata* C. Cameron Miller*** G.Yu* P. Elizondo* T.Y. Koo* F.X. Morin* S. Ellersick* M. Kotrebai M. Nadal*

IES Testing Procedures Committee

C. Cameron Miller, Chair B. Kuebler, Vice Chair D. Ellis, Secretary

C. Andersen T. Hernandez* S. Longo J. Schutz L. Ayers* R. Higley* R. Low* A.Serres* A. Baker* R. Horan** M. Lu* A. Smith R. Berger J. Hospodarsky J. Marella R. Speck* R. Bergin* S. Hua* P. McCarthy L. Stafford* R. Bergman J. Hulett G. McKee G. Steinberg J. Blacker* P. Hung M. Minarczyk* R. Tuttle C. Bloomfield* D. Husby** Z. Mooney* T. Uchida* E. Bretschneider A. Jackson F. Morin* K. Wagner* K. Broughton* D. Jenkins* M. Nadal* J. Walker* E. Carter* J. Jiao D. Nava* H. Waugh* D. Chan* D. Karambelas* B. Neale* D. Weiss* P. Chou* H. Kashani* Y. Ohno* J. Welch* G. Connelly* T. Kawabata* J. Pan* K. Wilcox* J. Dakin* R. Kelley* D. Park* B. Willcock* R. Daubach* T. Koo* N. Peimanovic* V. Wu* L. Davis* M. Kotrebai E. Perkins* J. Yon J. Demirjian* J. Lawton* M. Piscitelli* R. Young* P. Elizondo* L. Leetzow* G. Plank* J. Zhang* P. Franck* J. Leland* E. Radkov M. Grather K. Lerbs* D. Randolph* * Advisory Y. Guan* R. Levin* C. Richards* ** Honorary Member K. Haraguchi* I. Lewin* E. Richman* *** Committee Liaison R. Heinisch* R. Li* K. Rong* K. Hemmi* K. Liepmann* M. Sapcoe This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store. IES LM-66-14 This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store. IES LM-66-14 Please refer to the IES Bookstore after you have purchased this IES Standard, for possible Errata, Addenda, and Clarifications, www.ies.org/bookstore. Contents

Foreword ...... 1

Introduction ...... 1

1.0 Scope ...... 2

2.0 Normative References ...... 2

3.0 Definitions ...... 2 3.1 Amalgam ...... 2 3.2 Cold Chamber or Cold Spot ...... 2

4.0 Ambient and Physical Conditions ...... 2 4.1 General ...... 2 4.2 Vibration ...... 3 4.3 Temperature ...... 3 4.4 Air Movement ...... 3 4.5 Operating Orientation ...... 3

5.0 Power Source Characteristics ...... 3 5.1 Power Supply Requirements ...... 3 5.1.1 Voltage Waveshape ...... 3 5.1.2 Voltage Regulation ...... 3 5.1.3 Power Supply Impedance ...... 3 5.2 Auxiliary equipment ...... 3 5.2.1 Reference Circuit Requirements ...... 3 5.2.2 Circuits for High Frequency Operation of lamps with electrodes ...... 4 5.2.2.1 Preheat Start Lamps, Non-Integrated, Line Frequency ...... 4 5.2.2.2 Rapid Start Lamps, Non-Integrated, Line Frequency ...... 4 5.2.2.3 Instant Start Lamps, Non-Integrated, Line frequency ...... 5 5.2.3 Integrated Compact Fluorescent Lamp and Integrated Electrodeless Fluorescent Lamps ...... 6 5.2.4 Starters ...... 6 5.3 Electrical Instrumentation ...... 6 5.3.1 Frequency Response ...... 6 5.3.2 Impedance Limitations ...... 7 5.3.3 Instrument Tolerance/Uncertainty ...... 7

6.0 Testing Procedures Requirements ...... 7 6.1 Preparation for Test ...... 7 6.1.1 Marking and Handling Requirements ...... 7 6.1.2 Seasoning ...... 7 6.1.3 Preburn ...... 7 6.1.4 Transfer of Lamp to the Measurement Circuit ...... 7 This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store. IES LM-66-14

6.2 Stabilization ...... 7 6.2.1 Preferred Method ...... 7 6.2.2 Unusual Conditions ...... 7 6.3 Photometric Measurement Requirements ...... 8 6.3.1 Integrating Sphere Measurement ...... 8 6.3.2 Intensity (Candela) Distribution ...... 8 6.4 Color Measurements ...... 8

7.0 Test Report ...... 8

Informative References ...... 9

Annex A - Photometric measurements of lamps using fixed current method at high frequency . . 9

Annex B - Use of the “Peak” Method ...... 10

Annex C - Normal Intensity (Candela) Measurements ...... 10 This is a preview of "IES LM-66-14". Click here to purchase the full version from the ANSI store. IES LM-66-14

FOREWORD lamps are normally globular but can be made into A-line types, ring structures and reflector lamps. Regardless of the electrodeless lamp’s outer shape, This approved method is a revision of IES LM-66- it has a more convoluted topological construction 2011, Approved Method for the Electrical and as it must incorporate an electromagnet outside the Photometric Measurements of Single-Ended inert gas/mercury container (gas discharge volume) Compact Fluorescent Lamps. Changes have been around which the current circulates. Two methods made to include self-ballasted or integrated electro- are in current use: a tubular coil inserted on the axis deless fluorescent lamps in the scope. of a globular (A-line type, and reflector lamps), or a toroidal coil through which a circular glass tube is inserted. INTRODUCTION While electrodeless lamps are in fact compact in size, electrodeless fluorescent lamps are not The fluorescent lamp is an electric discharge source included in the definition for ‘Compact Fluorescent in which light is produced predominantly by fluo- Lamps’ in ANSI/IES RP-16-10 Nomenclature and rescent powders activated by ultraviolet energy Definitions for Illuminating Engineering. Thus the generated by mercury atoms brought to an excited word ‘compact’ has been removed from the title of state by collision with electrons in a low-pressure this document to show this distinction. rare gas-mercury discharge or arc. There are two main ways to generate the electrical discharge. The Finally, there are two categories of compact fluores- most common is to pass current through the gas via cent lamps (CFLs): integrated and non-integrated. electrodes (cathodes) that are connected by wires Non-integrated CFLs, normally only those with elec- through the glass envelope. The other way is to trodes, are comprised of a discharge tube, lamp induce a current without the need of electrodes by base and electrical connectors that interface to a use of high frequency magnetic induction. This type lamp holder that connects the external ballast to the of discharge lamp is commonly called an electrode- lamp. For non-integrated CFLs the ballast is essen- less discharge lamp. tially the same as for double-ended (linear) fluores- cent lamps and the starting circuits can be the same, Like most electric discharge lamps, both types of i.e., preheat, instant start, rapid start or program fluorescent lamps require operation in series with a start. Integrated CFLs combine the discharge tube current limiting device. This device, commonly called or induction structure, ballast (normally electronic), a ‘ballast’, which may be either electromagnetic or lamp base, and appropriate housings into one struc- electronic, limits the discharge current to the value ture. Because the electro-magnet, which is part of for which the lamp type is designed. The ballast, in the ballast, must also be in close proximity to the conjunction with the appropriate power supply, pro- discharge chamber, most electrodeless lamps are vides the required starting capability and maintains integrated (self-ballasted) lamps. Typically, integrat- the operating lamp voltage and current as required ed lamps can be directly connected to the branch to meet the design specifications for the lamp. circuit using standard lamp holders.

Fluorescent lamps with electrodes require long dis- The methods presented here are applicable to charge lengths to be optimally efficient. Normally the both integrated and non-integrated compact fluores- discharge lamp is a cylindrical tube with phosphor cent lamps and integrated electrodeless fluorescent coated on the inside surface with an electrode at lamps. ‘Circline’ and ‘U-bent’ lamps are covered each end. A long tubular lamp can be made compact in IES LM-9-09 Approved Method: Electrical and by being folded one or more times or spiraled in a Photometric Measurement of Fluorescent Lamps,1 helix in such a way that both electrodes are config- and are excluded from the procedures described ured to have one connection, hence single-based in this approved method. Additional information for construction. Further, lamps of any of these bent- reflector-type compact fluorescent lamps is provided tube geometries can be covered with visible radia- in IES LM-20-13 Approved Method: Photometry of tion transmitting envelopes having bulb shapes such Reflector Type Lamps.2 as globe (G shaped), tubular (T bulbs), reflector (R and PAR shaped) and others. The electrical characteristics usually measured are line voltage, lamp current, lamp voltage, and lamp Induction-driven electrodeless fluorescent lamps, on power. In the case of rapid start lamps, the power the other hand, are necessarily more compact as measurements may include both the arc power and the discharge current is required to form a closed the electrode power. Arc power is the power con- loop inside the structure. Electrodeless fluorescent sumed by the lamp discharge only, and is exclusive

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