ANSI C78.24-2001 Revision of ANSI C78.24-1995 Copyright 2001 by ANSLG - National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 American National Standard Approved: October 10, 2001 Secretariat: ANSLGNational Electrical Manufacturers Association for electric lamps: Two-inch (51mm) Integral-reflector Lamps with Front Covers and GU5.3 or GX 5.3 Bases Secretariat C78: American National Standards Lighting Group National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 Approved October 10, 2001 American National Standards Institute ANSI C78.24-2001 Revision of ANSI C78.24-1995 Copyright 2001 by ANSLG - National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 AmericanNational Standard Approval of an American National Standard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the Committee Secretariat whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Published by Information Handling Services/Global Engineering Documents 15 Inverness Way East, Englewood, CO 80112-5776 Under Contract with the National Electrical Manufacturers Association No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher. Printed in the United States of America ANSI C78.24-2001 Revision of ANSI C78.24-1995 Copyright 2001 by ANSLG - National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 i TABLE OF CONTENTS Foreword .ii 1.0 Scope.1 2.0 Normative References.1 3.0 Lamp Designations.1 Annex A : Outline Drawing (Normative).5 Annex B: Bibliography (Informative). 9 ANSI C78.24-2001 Revision of ANSI C78.24-1995 Copyright 2001 by ANSLG - National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 ii Foreword (This Foreword is not part of ANSI C78.24-2001.) Suggestions for improvement of this standard should be submitted to the Secretariat C78, National Electrical Manufacturers Association, 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209. This standard was processed and approved by Accredited Standards Committee on Electric Lamps, C78, and its Sub-Committee, C78-1 for Incandescent Lamps. Committee approval of the standard does not necessarily imply that all committee members voted for that approval. At the time this standard was published, the C78 Committee had the following members: Al Rousseau, Chair, C78 & Technical Coordinator Randolph N. Roy, Secretariat Cynthia E. Minshall, Consulting Editor Organization Represented: Name of Representative: Advance Transformer Company Norman Grimshaw Edison Electric Institute William Maguire (Delegate) GE Lighting Cynthia E. Minshall Illuminating Engineering Society Rita M. Harrold Intertek Testing Services, Inc. Craig Davenport MagneTek Michael A. Stein National Electrical Manufacturers Association (vacant) (Delegate) OSRAM SYLVANIA INC. Peter Bleasby Philips Lighting Company Al Rousseau Underwriters Laboratories, Inc. David Belt At the time it approved this standard, the C78-1 Sub-Committee had the following members: Bernard Rachel, Chair C78-1 Organization Represented: Name of Representative: GE Lighting Bernard Rachel OSRAM SYLVANIA INC. David Mullen Jam