NEMA DC 10-2009 Residential Controls—Temperature Limit Controls for Electrical Baseboard Heaters1.pdf
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1、 NEMA DC 10 RESIDENTIAL CONTROLS TEMPERATURE LIMIT CONTROLS FOR ELECTRICAL BASEBOARD HEATERS NEMA Standards Publication DC 10-2009 Residential ControlsTemperature Limit Controls for Electrical Baseboard Heaters Published by: National Electrical Manufacturers Association 1300 North 17th Street Rossly
2、n, Virginia 22209 www.nema.org Copyright 2009 by the National Electrical 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
3、and Pan American Copyright Conventions. NOTICE AND DISCLAIMER The 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 unani
4、mous agreement among every person participating in the development 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
5、. This process brings together volunteers and/or seeks out the views 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
6、independently test, evaluate, or verify the accuracy or completeness 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, ind
7、irect, consequential, or compensatory, directly or indirectly resulting 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 disclai
8、ms and makes no warranty that the information in this document will 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
9、 document available, NEMA is not undertaking to render professional 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,
10、as appropriate, seek the advice of a competent professional in determining 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
11、 or information not covered by this publication. NEMA has no power, 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 statemen
12、t of compliance with any health or safetyrelated information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. DC 10-2009 Page i CONTENTS Forewordii History of Standardsiii Section 1 GENERAL.1 1.1 Scope1 1.2 References1 1.
13、3 Definitions.1 Section 2 RATINGS AND CLASSIFICATIONS3 2.1 Voltage Ratings.3 2.2 Current Ratings.3 2.3 Functional Classifications .3 2.3.1Linear-Sensing Type .3 2.3.2Spot-Sensing Type3 Section 3 CONSTRUCTION.4 3.1 Envelope Dimensions.4 3.1.1Linear-Sensing Type .4 3.1.2Spot-Sensing Type4 3.2 Mounting
14、 .4 3.2.1Linear-Sensing Type .4 3.2.2Spot-Sensing Type4 3.3 Connections4 3.3.1Terminals.4 3.3.2Wiring 4 3.4 Operating Mechanism.4 3.5 Enclosure 5 3.6 Corrosion Protection .5 3.7 Adjustments 5 Section 4 PERFORMANCE6 4.1 Cut-out Settings 6 4.2 Cut-in Settings.6 4.3 Determination of Cut-out and Cut-in
15、Temperatures .6 4.3.1Linear-Sensing-Type Controls 6 4.3.2Spot-Sensing-Type Controls.7 4.4 Endurance.7 Section 5 MARKING .8 5.1 Marking .8 Section 6 APPLICATION 9 6.1 Installation.9 6.2 Wiring9 6.2.1Spot-Sensing Type9 6.2.2Linear-Sensing Type .9 6.3 Instructions9 6.4 Spot-Type Control Systems9 Copyri
16、ght 2009 by the National Electrical Manufacturers Association. DC 10- 2009 Page ii Foreword This Standards Publication defines the basic standards for rating, classification, construction, testing, and performance of temperature limits controls for application on electric baseboard heaters. It has b
17、een developed in the public interest and is designed to promote a better understanding between the manufacturer and the user, where possible, to provide direct interchangeability through industry standardization, and to assist the user in selecting the proper controls for his or her particular appli
18、cation. These standards are periodically reviewed by the Residential 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, Technical Services National Electrical Manufacturers
19、Association 1300 North 17th Street, Suite 1752 Rosslyn, Virginia 22209 This Standards Publication was developed by the Residential Controls Section. Section approval of the standard does not necessarily imply that all Section members voted for its approval or participated in its development. At the
20、time it was approved, the group was composed of the following members: Apcom Inc.Franklin, TN Emerson Electric Company, White-Rodgers DivisionSt. Louis, MO GE Industrial SystemsMorrison, IL Honeywell, Inc.Golden Valley, MN Therm-O-DiscMansfield, OH Copyright 2009 by the National Electrical Manufactu
21、rers Association. DC 10-2009 Page iii History of Standards The Residential Controls Section of NEMA was formed in 1940 to promote the standardization of products within the scope of the Section. These product standards cover definitions, ratings, performance, testing, and dimensions. NEMA standards
22、are voluntary and are designed to eliminate misunderstandings between the purchaser and the manufacturer. This publication is one of a series sponsored by the Residential Controls Section. Other publications in this series are identified as Pub. No. DC XX (followed by the year of issue). The Technic
23、al Committee of the Residential Controls Section of NEMA first formed a subcommittee to develop temperature limit control standards for electric baseboard heaters in 1960. The deliberations of this committee resulted in the NEMA Standards Publication for Temperature Limit Controls for Electric Baseb
24、oard Heaters, DC 10-1964, which was later revised and superseded first by DC 10-1971, by DC 10-1977, and then by DC 10-1983. The present publication, DC 10-2009, is published in accordance with NEMAs policy of periodic review and revision to keep NEMA Standards contemporary with industry needs and t
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