NEMA C78 1407-2004 Electric Lamps Condenser-Reflector Four-Pin Prefocus-Base Projection Lamps Dimensions《电灯 四脚预聚焦底座聚光反射器的放映灯的尺寸[代替 ANSI C78 1407 ANSI C78 1407]》.pdf

《NEMA C78 1407-2004 Electric Lamps Condenser-Reflector Four-Pin Prefocus-Base Projection Lamps Dimensions《电灯 四脚预聚焦底座聚光反射器的放映灯的尺寸[代替 ANSI C78 1407 ANSI C78 1407]》.pdf》由会员分享，可在线阅读，更多相关《NEMA C78 1407-2004 Electric Lamps Condenser-Reflector Four-Pin Prefocus-Base Projection Lamps Dimensions《电灯 四脚预聚焦底座聚光反射器的放映灯的尺寸[代替 ANSI C78 1407 ANSI C78 1407]》.pdf（10页珍藏版）》请在麦多课文档分享上搜索。

1、 ANSI C78.1407-2004 Revision of ANSI C78.1407-1985 American National Standard for electric lamps Electric Lamps Condenser-Reflector, Four-Pin Prefocus-Base Projection Lamps - Dimensions ANSI C78.1407-2004 Revision of ANSI C78.1407-1985 American National Standard Approved: June 30, 2004 Secretariat:

2、ANSLG -National Electrical Manufacturers Association For Electric Lamps Electric Lamps Condenser-Reflector, Four-Pin Prefocus-Base Projection Lamps - Dimensions Copyright g211 2004 by American National Standard Lighting Group - NEMA 1ANSI C78.1407-2004 Revision of ANSI C78.1407-1985 American Nationa

3、l 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 s

4、cope 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 requ

5、ires that all views and objections be considered, and that a concerted effort be made toward their resolution. The existence of an American National Standard does not in any respect preclude anyone, whether s/he has approved the standard or not, from manufacturing, marketing, purchasing, or using pr

6、oducts, processes, or procedures not conforming to the standards. It is intended as a guide to aid the manufacturer, the consumer, and the general public. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National

7、 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 referred to on the title page. CAUTION

8、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 informa

9、tion 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 80112-5776 Under Contract with National Electrical Manufacturers Association Copyright g2

10、112004 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, without prior written permission of the publisher. Pri

11、nted in the United States of America Copyright g211 2004 by American National Standard Lighting Group - NEMA 2ANSI C78.1407-2004 Revision of ANSI C78.1407-1985 Contents Page Foreword4 1 Scope.5 2 Normative References.5 3 Lamp Designations.5 4 Dimensions.5 5 Lamp Group6 Figure 1 : Dimensions of Inter

12、nal Condensor-Reflector Four-Pin Lamp.7 Appendix.8 A1 8 A2 .8 A3 .8 Copyright g211 2004 by American National Standard Lighting Group - NEMA 3ANSI C78.1407-2004 Revision of ANSI C78.1407-1985 Foreword (This foreword is not part of American National Standard C78.1407-2004) Suggestions for improvement

13、of this standard should be submitted to the Secretariat C78, American National Standard Lighting Group (NEMA), 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 Working Group, C78 WG 01. W

14、orking Group approval of the standard does not necessarily imply that all working group members voted for that approval. Information concerning approval of this standard is based on the documents listed in the table below. Editors Note: During the final editorial review, changes were made to select

15、sections of this published document only, and not to the working base document. Amendment / Change CDV RV Revision C78_1_4165 C78_1_4166David Mullen, Chairman, ASC 78 Randolph N. Roy, ANSLG Secretariat however, pins 3 and 4 are not necessarily isolated from pins 1 and 4. A2 Line-voltage lamps are pr

16、efocused with respect to pins 1 and 3. Electrical contact is made through pins 1 and 4; however, pins 2 and 3 are not necessarily isolated from pins 1 and 2. A3 Both heat-reflecting and heat-transmitting mirrors are used with all groups of lamps. Although heat-transmitting-mirror (dichroic coated glass) lamps may frequently be substituted for heat-reflecting (opaque coated metal or glass) lamps, the reverse is not true and may cause damage to film and equipment. Consult manufacturers catalogs for permissible lamp substitutions.