1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI C78.1451-2002For Electric Lamps - Use of Protective Shields with Tungsten-Halogen Lamps- Cautionary NoticeANSI C78.1451-2002 Revision of ANSI C78.1451-1995 American National Standard I Approved October 17, 2002 Secretariat:
2、ANSLG - National Electrical Manufacturers Association I For Electric Lamps- Use of Protective Shields with Tungsten-Halogen Lamps- Cautionary Notice Scope This standard shows a cautionary notice applying to the use of protective shields with tungsten-halogen (T-H) lamps for which the lamp manufactur
3、er requires shielding against shattering and ultraviolet (UV). Equivalent wording may be used. Cautionary Notice To assure maximum safety during handling and use of the lamps described in the scope, the following notices should be observed: (1) Tungsten-halogen lamps operate at high temperatures and
4、 at internal gas pressures above atmospheric pressure. Consequently a lamp may shatter. Certain lamps may also emit some amount of ultraviolet radiation. Therefore, a suitable protective shield, screening technique, or both, shall be used with the luminaire to protect people and surroundings from bo
5、th hazards. (2) Always read and observe the information contained in the lamp manufacturers caution notice. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. It is intended as a guide to aid the manufaciurer, the consumer, and the gener
6、al public. The existence of an American National Standard does not in any respect preclude anyone, whether he has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. Users are cautioned to obtain the la
7、test editions. 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
8、the American National Standards Institute. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time.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 Amer
9、ican National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Printed and distributed by: Information Handling Services/Global Engineering Documents 15 Inverness Way East, Englewood, CO 801 12-5776 Under Contract with Nation
10、al Electrical Manufacturers Association Copyright O2002 by American National Standard Lighting Group In Affiliation with National Electrical Manufacturers Association All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, witho
11、ut prior written permission of the publisher. Printed in the United States of America Copyright 02002 by American National Standard Lighting Group - NEMA 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION 1300 NORTH 17TH STREET, SUITE 900 ROSSLYN. VA 22209www.NEMA.orgTO ORDER ADDITIONAL NEMA STANDARDS VISITWWW.GLOBAL.IHS.COM OR CALL 1-800-854-7179/1-303-397-79565612_0514TB
