NEMA DC 5-1989(R2008) Residential Controls – Surface-Type Controls for Electric Storage Water Heaters1.pdf
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1、NEMA Standards Publication DC 5-1989 (R1996, R2002 R2008) Residential Controls Surface-Type Controls for Electric Storage Water Heaters Published by National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, Virginia 22209 www.nema.org Copyright 2008 by the National El
2、ectrical Manufacturers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions. NOTICE AND DISCLAIMER Th
3、e information in this publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the developme
4、nt of this document. The National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the v
5、iews of persons who have an interest in the topic covered by this publication. While NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does not write the document and it does not independently test, evaluate, or verify the accuracy or complete
6、ness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly re
7、sulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, expressed or implied, as to the accuracy or completeness of any information published herein, and disclaims and makes no warranty that the information in this document w
8、ill fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standard or guide. In publishing and making this document available, NEMA is not undertaking to render professio
9、nal or other services for or on behalf of any person or entity, nor is NEMA 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 d
10、etermining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consult for additional views or information not covered by this publication. NEMA has no pow
11、er, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health or safety related information in
12、 this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. DC 5-1989 (R1996, R2002, R2008) Page i CONTENTS Page Foreword ii Section 1 GENERAL.1 1.1Scope.1 1.2References 1 1.2.1Normative References 1 1.3Definitions1 Section 2 CLASSIFI
13、CATIONS2 2.1Classifications2 Section 3 CONSTRUCTION3 3.1Dimensions3 3.2Mounting Method.3 3.3Mounting Means3 3.4Terminal Markings.4 Section 4 PERFORMANCE AND RATINGS5 4.1Performance and Ratings5 Figures 31 Control Base3 32 Dimensions for Mounting Bracket Tabs 4 Copyright 2008 by the National Electric
14、al Manufacturers Association. ? DC 5-1989 (R1996, R2002, R2008) Page ii Foreword This Standards Publication defines the basic elements of construction and mounting considered to be necessary for the application of electric storage water heater controls. It has been developed in the public interest a
15、nd is designed to promote a better understanding between the manufacturer and the user by providing for interchangeability through industry standardization. This Standards Publication is designated NEMA Standard unless otherwise indicated. These standards are periodically reviewed by the Residential
16、 Controls Section of NEMA for any revisions necessary to keep them up-to-date with advancing technology. Proposed or recommended revisions should be submitted to: Vice President, Engineering Department National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, Virginia
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