NEMA ICS 7 1-2014 Safety Standards for Construction and Guide for Selection Installation and Operation of Adjustable-Speed Drive Systems.pdf

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1、NEMA Standards PublicationNational Electrical Manufacturers AssociationNEMA ICS 7.1-2014 Safety Standards forConstruction and Guidefor Selection, Installation, and Operation of Adjustable-Speed Drive SystemsNEMA ICS 7.1-2014 Safety Standards for Construction and Guide for Selection, Installation, an

2、d Operation of Adjustable-Speed Drive Systems Published by: National Electrical Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn, Virginia 22209 www.nema.org 2014 National Electrical Manufacturers Association. All rights, including translation into other languages, reserved under

3、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 The information in this publication was considered technically sound by a consensus among persons engaged in

4、 its development at the time it was approved. Consensus does not necessarily mean there was unanimous agreement among every person participating in the development process. The National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document herein is

5、one, are developed through a voluntary standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. Although NEMA administers the pr ocess and establishes rules to promote fairness in the d

6、evelopment of consensus, it does not write the documents, nor does it 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, pro

7、perty, or other damages of any nature, whether special, indirect, 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, express or implied, as to the accuracy or comp

8、leteness of any information published herein, and disclaims and makes no warranty that the information in this document will fulfill any particular purpose(s) or need(s). NEMA does not undertake to guarantee the performance of any individual manufacturers or sellers products or services by virtue of

9、 this standard or guide. In publishing and making this 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 s

10、hould rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstance. Information and other standards on the topic covered by this publication may be available from other sources, wh

11、ich the user may wish to consult for additional views 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

12、 health purposes. Any certification or other statement of compliance with any health - or safety-related information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. ICS 7.1-2014 Page i 2014 National Electrical Manufactur

13、ers Association TABLE OF CONTENTS Page Foreword .iii Section 1 GENERAL 1.1 Scope . 1 1.2 Definitions 1 1.3 Referenced Standards 2 Section 2 CONSTRUCTION REQUIREMENTS 2.1 Adjustable Speed Drive System Rating and Identification Plates 3 2.1.1 Motor Nameplates 3 2.1.2 Device Identification . 3 2.1.3 Ba

14、sic Drive Module / Complete Drive Module (BDM / CDM) (Controller) Nameplate 3 2.2 Operating and Maintenance Data 3 2.3 Supply Circuit Disconnecting Devices . 3 2.3.1 General 3 2.3.2 Type 3 2.3.3 Rating 4 2.3.4 Supply Conductors to be Disconnected . 4 2.3.5 Mounting 4 2.3.6 Operating Handle . 4 2.3.7

15、 Isolation . 4 2.4 Protection 4 2.4.1 Interrupting Capacity . 4 2.4.2 Control Circuit . 4 2.4.3 Undervoltage (Low-Voltage) Protection 4 2.4.4 Motor Overload . 4 2.4.5 Supply-circuit Overcurrent (Short-Circuit) Protection 5 2.4.6 Power Transformer . 5 2.4.7 Draining of Stored Charge . 5 2.4.8 Short-C

16、ircuit Considerations for Equipment . 5 2.5 Control Circuits 5 2.5.1 General . 5 2.5.2 Interlocking . 5 2.6 Control Devices 5 2.6.1 AC Motor Starters 5 2.6.2 Contactors . 5 2.7 Control Enclosures 6 2.8 Internal Conductors 6 2.9 Wiring Methods and Practices . 6 2.10 Grounded Circuits and Equipment Gr

17、ounding . 6 ICS 7.1-2014 Page ii 2014 National Electrical Manufacturers Association 2.10.1 Enclosure Lighting Circuits and Convenience Outlets 6 2.10.2 Grounding 6 2.11 Set-up and Service Requirements for Energized Equipment 6 2.11.1 Movable Assemblies . 6 2.11.2 Nonelectrical apparatus 6 Section 3

18、TESTS 3.1 Control Equipment and Systems 7 Section 4 GUIDE FOR SAFETY IN APPLICATION OF ADJUSTABLE-SPEED DRIVE SYSTEMS 4.1 Safety in Application 8 4.1.1 Factors to be Considered 8 4.1.2 Electrical and Thermal Safety 8 4.1.3 Control Safety . 11 4.2 Safety in Installation 14 4.2.1 Installation of Motor

19、s . 14 4.2.2 Installation of Control Equipment . 14 4.3 Safety in Operation 15 4.4 Safety in Maintenance . 16 ICS 7.1-2014 Page iii 2014 National Electrical Manufacturers Association Foreword In the preparation of this standards publication, input of users and other interested parties has been sough

20、t and evaluated. It is general knowledge that the misuse of electricity is potentially hazardous and may create risks to personnel and property. In addition to shocks or burns from direct contact with live parts , the risks may also include: 1) fire resulting from over loads, faulty wiring, or fault

21、y equipment and 2) injuries resulting from erratic machine operation. The degree of hazard can be greatly reduced by proper design, construction, selection, installation, and use, but hazards cannot be completely eliminated. The reduction of hazard should be the joint responsibility of the user and

22、the manufacturers of: 1) the driven equipment 2) the motor or motors and 3) the electrical equipment for supplying and controlling the power for the motor or motors. Since any electrical equipment can be installed or operated in such a manner that hazardous condition can occur, compliance with this

23、publication does not by itself assure a safe installation. However, when equipment complying with this publication is properly selected with respect to the driven load and environment and is installed in accordance with the National Electric Code, the potential hazards to persons and property will b

24、e reduced. The importance of communication between manufacturer and user cannot be overemphasized. The chances for preventing hazardous incidents and limiting their consequences are greatly improved when both user and manufacturer are correctly and fully informed with respect to the intended use and

25、 all environmental and operating conditions. The purpose and scope of this Standards Publication are given on page 1. The book consists of the following clauses: Clause 1Defines the scope of the standard, lists the referenced standards, and defines terms. Clause 2Defines construction details which c

26、ontribute to safety. It is intended to assist the electrical manufacturer to design and build equipment with features which will reduce hazards and also to assist the user and the manufacturer of the driven equipment in the selection of electrical equipment which has been designed and built to inclu

27、de features that contribute to safety. Clause 3Sets forth test requirements. Clause 4Intended to guide the user and the manufacturer of the driven equipment in the proper selection, installation, and operation of adjustable-speed drive systems. Since the reduction of hazards depends greatly on how e

28、quipment is selected, installed and used, this section points out possible hazards and suggests ways and means to reduce them. ICS 7.1-2014 supplements NEMA ICS 7-2014 Industrial Control and Systems: Adjustable Speed Drives. The purpose of this standards publication is to define the construction and

29、 test requirements for adjustable-speed drive systems and to provide recommendations for their selection, installation, and operation in such a manner as to provide for the practical safeguarding of persons. ICS 7.1-2014 Page iv 2014 National Electrical Manufacturers Association NEMA standards publi

30、cations are subject to periodic review. They are revised frequently to reflect user input and to meet changing conditions and technical progress. Users should secure the latest editions. Comments will be welcomed. Proposed revisions to this standards publication should be submitted to: Senior Techni

31、cal Director, Operations National Electrical Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn, Virginia 22209 This standards publication was approved by the NEMA Industrial Automation Control Products and Systems Section. Section approval of this standard, however, does not necess

32、arily imply that all section members voted for its approval or participated in its development. At the time this standard was approved, the Industrial Automation Control Products and Systems Section consisted of the following members: ABB Inc.Raleigh, NC Bluffton Motor Works-Bluffton, IN CARLO GAVAZ

33、ZI, INC.Buffalo Grove, IL Cummins, Inc.Minneapolis, MN Danfoss VLT Drives-Milwaukee, WI Delta Products Corporation-Research Triangle Park, NC EatonMilwaukee, WI Electro Switch CorporationWeymouth, MA Elliott Control Company, Ltd.-Willis, TX Emerson Electric Co.Saint Louis, MO GEFairfield, CT Generac

34、 Power Systems, Inc.-Waukesha, WI Hubbell IncorporatedShelton, CT Hypertherm Incorporated- Hanover, NH Joslyn Clark Controls, Inc.Lancaster, SC L-3 Communications/SPD TechnologiesAnaheim, CA Master Controls Systems, Inc.Lake Bluff, IL Mitsubishi Electric Automation, Inc.Vernon Hills, IL Nidec Motor

35、Corporation-Saint Louis, MO Omron Electronics LLCHoffman Estates, IL Phoenix Contact, Inc.Middletown, PA Post Glover Resistors, Inc.Erlanger, KY Reliance Controls CorporationRacine, WI Rockwell AutomationMilwaukee, WI Russelectric, Inc.Hinngham, MA Schneider ElectricPalatine, IL SEW-Eurodrive, Inc.L

36、yman, SC Siemens Industry, Inc.Norcross, GA TE Connectivity, Harrisburg, MA TIAX LLC-Lexington, KY Tornatech Inc.Saint-Laurent, Canada Toshiba International CorporationHouston, TX Vacon, Inc.-Milwaukee, WI WAGO CorporationGermantown, WI WEG Electric Corp.-Duluth, GA Yaskawa Electric America, Inc.Wau

37、kegan, IL ICS 7.1-2014 Page 1 2014 National Electrical Manufacturers Association Section 1 GENERAL 1.1 SCOPE These standards apply to all industrial equipment electrical components and wiring which are parts of the electrical drive system, commencing at the point of connection of input power to thes

38、e components. They apply to open or enclosed electrical equipment for use on circuits which operate from an alternating-current supply voltage of 600 volts or less. These standards are intended for industrial equipment which will be installed in accordance with the National Electrical Code and the m

39、anufacturers instructions. They are not considered adequate for industrial equipment intended for use in locations which are designated as hazardous in the National Electrical Code. These standards are generally applicable, but there may be situations where a conflict with other safety measures or o

40、perational requirements will necessitate that these standards be modified. Excluded from this publication are: a. Portions, subassemblies, or parts of motors or controllers to be used in the manufactureof more complete controllers or drive systemsb. Main propulsion equipment for railroad and transit

41、 locomotive carsc. Automotive equipmentd. Equipment for airborne or aerospace crafte. Equipment for household usef. Equipment built to military specifications which conflict with or override the provisions ofthis publicationg. Additional specific features required for use under unusual service condi

42、tions, in locationsinvolving hazardous atmospheres and hazardous projectsh. Systems for processes using electricity for purposes other than supplying and controllingelectric motorsi. Drive systems rated less than 1/4 horsepowerj. Drive systems for portable toolsk. Industrial electric trucksl. Passen

43、ger elevators or moveable walkways or liftsm. Marine equipment1.2 DEFINITIONS Refer to ICS 7, Part 1 for equipment definitions. ICS 7.1-2014 Page 2 2014 National Electrical Manufacturers Association 1.3 REFERENCED STANDARDS In this publication, reference is made, in part or in full, to the following

44、 standards listed below. Copies are available from the indicated sources. National Electrical Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn, VA 22209 ICS 1-2000 (R2005) Industrial Control and Systems General Requirements ICS 1.1-1984 (R2003) Safety Guidelines for the Applicatio

45、n, Installation and Maintenance of Solid-State Control ICS 1.3-1986 (R2001) Preventive Maintenance of Industrial Control and Systems Equipment ICS 2-2000 (R2005) Industrial Control and Systems Controllers Contactors and Overload Relays ICS 7-2014 Industrial Control and Systems Adjustable Speed Drive

46、s ICS 4-2005 Industrial Control and Systems Terminal Blocks ICS 6-1993 (R2001) Industrial Controls and Systems Enclosures MG 1-2011 Motors and Generators MG 2-2014 Safety Standards for Construction and Guide for Selection, Installation and Use of Electric Motors and Generators National Fire Protecti

47、on Association Batterymarch Park Quincy, MA 02269 NFPA 70-2005 National Electrical Code NFPA 70E-2004 Standard for Electrical Safety Requirements for Employee Workplaces NFPA 79-2002 Electrical Standard for Industrial Machinery Underwriters Laboratories Inc. 333 Pfingsten Rd. Northbrook, IL 60062 UL

48、 508C Standard for Power Conversion Equipment UL 61800-5-1 Standard for Adjustable Speed Electrical Power Drive Systems: Part 5-1: Safety Requirements Electrical, Thermal and EnergyICS 7.1-2014 Page 3 2014 National Electrical Manufacturers Association Section 2 CONSTRUCTION REQUIREMENTS 2.1 ADJUSTAB

49、LE SPEED DRIVE SYSTEM RATING AND IDENTIFICATION PLATES 2.1.1 Motor Nameplates Motors, both alternating-current and direct-current, shall be identified in accordance with MG 1. 2.1.2 Device Identification Shall be in accordance with either UL 508C or UL 61800-5-1. 2.1.3 Basic Drive Module / Complete Drive Module (BDM / CDM) (Controller) Nameplate Shall be in accordance with either UL 508C or UL 61800-5-1. 2.2 O