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NEMA - NEMA A BRIEF COMPARISON - A BRIEF COMPARISON OF NEMA 250 - ENCLOSURES FOR ELECTRICAL EQUIPMENT (1000 VOLTS MAXIMUM) AND IEC 60529 - DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODES) Organization: NEMA
Date: 2002-01-01
Description: This Publication is intended to provide a brief comparison and explanation of some of the basic differences between NEMA Standard 250, Enclosures for Electrical Equipment (1000 Volts Maximum) and IEC Standard 60529, Degrees of Protection Provided by Enclosures (IP Code).
DS/EN 62208 - EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS Organization: DS
Date: 2011-12-16
Description: NOTE 2 The United States of America (USA) uses enclosure "Type" designations according to NEMA 250. The NEMA Enclosure Type designations specify additional environmental requirements for conditions such as corrosion, rust, icing, oil, and coolants.
IEC 62208 - EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES – GENERAL REQUIREMENTS - EDITION 2.0 Organization: IEC
Date: 2011-08-01
Description: NOTE 2 The United States of America (USA) uses enclosure "Type" designations according to NEMA 250. The NEMA Enclosure Type designations specify additional environmental requirements for conditions such as corrosion, rust, icing, oil, and coolants.
CENELEC - EN 62208 - EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS Organization: CENELEC
Date: 2011-10-01
Description: NOTE 2 The United States of America (USA) uses enclosure "Type" designations according to NEMA 250. The NEMA Enclosure Type designations specify additional environmental requirements for conditions such as corrosion, rust, icing, oil, and coolants.
CEI EN 62208 - EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS Organization: CEI
Date: 2012-02-01
Description: NOTE 2 The United States of America (USA) uses enclosure "Type" designations according to NEMA 250. The NEMA Enclosure Type designations specify additional environmental requirements for conditions such as corrosion, rust, icing, oil, and coolants.
KSC-S-126 REV B - SEALING OF ELECTRICAL COMPONENTS, SPECIFICATION FOR Organization: KSC
Date: 2008-10-29
Description: The requirements specified herein are not applicable to the National Electrical Manufacturers Association (NEMA) electrical enclosures. This specification is intended to establish uniform procedures and methods for testing seals for electrical components and enclosures.
UL 2756 - UL STANDARD FOR SAFETY UL ADVANTAGE PROGRAM FOR CLASS III PRODUCTS - FIRST EDITION Organization: UL
Date: 2011-08-24
Description: These requirements do not apply to products with Laser Modules, notebook type computers, Class III devices other than described above in 1.1, products incorporating a high voltage inverter operating above SELV limits, Class I or Class II products with a NEMA enclosure rating or IP Rating noted either in the manual or marketing materials or marked on the unit, an interface to a cable distribution system or telecommunications network (TN) or motors.
UL 1363A OUTLINE - OUTLINE OF INVESTIGATION FOR SPECIAL PURPOSE RELOCATABLE POWER TAPS - ISSUE 3 Organization: UL
Date: 2010-01-08
Description: They consist of a NEMA type attachment plug and a length of flexible cord terminated in an enclosure in which are mounted two or more receptacle outlets.
ISA 12.00.01 - ELECTRICAL APPARATUS FOR USE IN CLASS I, ZONES 0, 1 & 2 HAZARDOUS (CLASSIFIED) LOCATIONS: GENERAL REQUIREMENTS Organization: ISA
Date: 2002-12-02
Description: This standard is supplemented or modified by the following standards concerning specific types of protection: • Flameproof enclosures `d', (ANSI/ISA-12.22.01-2002 [IEC 60079-1 Mod]); • Pressurized enclosures `p', see Note 3; • Powder-filling `q', (ANSI/ISA-12.25.01-1998 [IEC 60079-5 Mod]); • Oil-immersion `o', (ANSI/ISA-12.26.01-1998 [IEC 60079-6 Mod]); • Increased safety `e', (ANSI/ISA-12.16.01-2002 [IEC 60079-7 Mod]); • Intrinsic safety `i', (ISA-12.02.01 [IEC 60079-11 Mod]); • Encapsulation `m', (ANSI/ISA-12.23.01-2002 [IEC 60079-18 Mod]).
UL 2930 OUTLINE - UL OUTLINE FOR INVESTIGATION CORD-AND-PLUG-CONNECTED HEALTH CARE FACILITY OUTLET ASSEMBLIES - ISSUE 1 Organization: UL
Date: 2016-10-20
Description: These requirements cover HCOA consisting of an ANSI/NEMA WD 6-configuration Hospital Grade attachment plug and a length of non-detachable flexible cord terminated in an enclosure in which are mounted ANSI/NEMA WD 6-configuration Hospital Grade individual receptacle outlets (duplex or single) which are connected conductively to an integral patient equipment grounding terminal or jack provided for user connection of a discrete grounding path conductor to Patient Equipment Grounding Points, installed in the Patient Care Vicinities of a Health Care Facility.
UL 2755 OUTLINE - UL STANDARD FOR SAFETY OUTLINE OF INVESTIGATION FOR MODULAR DATA CENTERS - ISSUE 1 Organization: UL
Date: 2011-10-31
Description: MDCs intended for outdoor use shall be identified with a NEMA environmental class rating. These requirements are intended to demonstrate compliance with the National Electrical Code (NEC), NFPA 70 and other national Codes such as Building, Fire, Plumbing, Mechanical, and the like.
IEEE - ANSI C37.16 - LOW-VOLTAGE POWER CIRCUIT BREAKERS AND AC POWER CIRCUIT PROTECTORS PREFERRED RATINGS, RELATED REQUIREMENTS, AND APPLICATION RECOMMENDATIONS - REPLACES NEMA C37.16-2000 Organization: IEEE
Date: 2000-01-01
Description: This standard was first published by the American Standards Association (now the American National Standards Institute) in 1956, using material developed by the National Electrical Manufacturers Association (NEMA). Reference should be made to the appropriate American National Standards for service conditions, definitions, ratings, temperature limitations, classes of insulating material, nameplate markings, dielectricwithstand requirements, test requirements, and application standards.
IEEE 421B - HIGH-POTENTIAL-TEST REQUIREMENTS FOR EXCITATION SYSTEMS FOR SYNCHRONOUS MACHINES Organization: IEEE
Date: 1979-06-01
Description: This standard supplements existing standards for components used on excitation systems: ANSI C19.3-1973, Industrial Control Apparatus - General; ANSI C19.4-1973, Industrial Control Apparatus - Enclosures; ANSI C19.5-1973, Industrial Control Apparatus - Switching or Controlling Devices; ANSI C19.6-1973, Industrial Control Apparatus - Control-Circuit Devices and Assemblies; ANSI C19.7-1973, Industrial Control Apparatus - Controllers and Controller Assemblies; ANSI C34.2-1968 (R1973), Practices and Requirements for Semiconductor Power Rectifiers; ANSI C37.18-1968 (R1975), Requirements for Field Discharge Circuit Breakers for Rotating Electric Machinery; ANSI/IEEE C57.12.00-197 3, General Requirements for Distribution, Power, and Regulating Transformers; ANSI/IEEE C57.12.90-1973, Test Code for Distribution, Power, and Regulating Transformers; and NEMA ICs1970 (R1975), Industrial Controls and Systems.
IEEE C37.43 - SPECIFICATIONS FOR HIGH- VOLTAGE EXPULSION, CURRENT-LIMITING, AND COMBINATION-TYPE DISTRIBUTION AND POWER CLASS EXTERNAL FUSES, WITH RATED VOLTAGES FROM 1 KV THROUGH 38 KV, USED FOR THE PROTECTION OF SHUNT CAPACITORS Organization: IEEE
Date: 2008-06-12
Description: This standard establishes specifications for high-voltage (above 1000 V) distribution and power class expulsion, current-limiting, and combination-type external capacitor fuses and accessories, with rated voltages from 1 kV through 38 kV, for protecting shunt capacitors complying with IEEE Std 18™-20021 and NEMA CP 1-2000. All of these devices are intended for use on ac systems.
NEMA - NEMA FB 2.10 - SELECTION AND INSTALLATION GUIDELINES FOR FITTINGS FOR USE WITH NON-FLEXIBLE METALLIC CONDUIT OR TUBING (RIGID METAL CONDUIT, INTERMEDIATE METAL CONDUIT, AND ELECTRICAL METALLIC TUBING) Organization: NEMA
Date: 2013-01-01
Description: Considering the variety of materials: steel; iron; aluminum; zinc; and engineered plastics, the industry has come a long way in providing numerous options to solve an infinite number of applications. Through the years, NEMA member companies who manufacturer conduit fittings have met the needs of the market with new and innovative product designs that continue to live up to higher standards demanded by the market.
API STD 541 - FORM-WOUND SQUIRREL CAGE INDUCTION MOTORS-375 KW (500 HORSEPOWER) AND LARGER - FIFTH EDITION Organization: API
Date: 2014-12-01
Description: NOTE A special purpose machine typically has one or more of the following characteristics: 1) is in an application for which the equipment is designed for uninterrupted, continuous operation in critical service, and for which there is usually no installed spare equipment; 2) is larger than 2250 kW (3000 hp) for speeds 1800 rpm and below; 3) is rated 600 kW (800 hp) or greater for two pole (3000 rpm or 3600 rpm) machines of totally enclosed construction, or rated 930 kW (1250 hp) or greater for two pole machines of open or guarded construction (including machines with WP-I or WP-II type enclosures); 4) drives a high-inertia load (in excess of the load Wk2 listed in NEMA MG 1, Part 20); 5) uses an adjustable speed drive (ASD) as a source of power; 6) is an induction generator; 7) is a vertical machine rated 375 kW (500 hp) or greater; or 8) operates in abnormally hostile environments.
ISA 61241-0 - ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - GENERAL REQUIREMENTS - 12.10.02 Organization: ISA
Date: 2006-01-01
Description: NOTE Requirements for safety of electrical equipment in ordinary (unclassified) locations can be found in ANSI Standards, NEMA Standards, Federal Regulations, etc. Apparatus listed by a Nationally Recognized Testing Laboratory is considered to meet the applicable requirements found in these standards.
IEEE C37.18 - STANDARD ENCLOSED FIELD DISCHARGE CIRCUIT BREAKERS FOR ROTATING ELECTRIC MACHINERY Organization: IEEE
Date: 1979-01-01
Description: This standard was first published in 1962 as IEEE Publication No 90 for trial use. It was also published as NEMA Std SG3-1965, Low-Voltage Power. After a period of industry use the material was reviewed and revised and published as USA Std 37.18-1968 (R1975), Requirements for Field Discharge Circuit Breakers for Rotating Electric Machinery, and USA Std C37.16a-1968, Supplement to USA Std C37.16-1963, Preferred Ratings and Related Requirements for Low-Voltage Power Circuit Breakers.

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