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National Electrical Manufacturers Association NEMA

A general purpose enclosure that is intended to primarily prevent accidental contact with the enclosed apparatus. It is suitable for general purpose applications indoors where it is not exposed to unusual service conditions and is primarily designed to keep out dirt. [Pg.269]

A Type 1 enclosure serves as a protection against dust and light indirect splashing, but is not dust tight. Typical applications are office buildings, warehouses, etc. [Pg.269]

A semi-dust tight enclosure that is similar to Type 1 enclosure, with the addition of a gasket around the cover. [Pg.269]


Each segment of the insulated wire and cable industry has its own set of standards, and cables are built to conform to specifications provided by a large variety of technical associations such as The Institute of Electrical Electronic Engineers (IEEE), The Insulated Cable Engineers Association, (ICEA), National Electrical Manufacturers Association (NEMA), Underwriters Laboratories (UL), Rural Electrification Administration of the U.S. Department of Agriculture (REA), Association of Edison Illumination Companies (AEIC), MiUtary Specifications of the Department of Defense (MIL), American Society for Testing and Materials (ASTM), National Electrical Code (NEC), etc. [Pg.322]

High Pressure Decorative Eaminates, Standards PubHcation No. LD3-1991, National Electrical Manufacturers Association (NEMA), Washington, D.C., 1991. [Pg.537]

Most of the laminates used for rigid printed circuit boards have been classified, by the National Electrical Manufacturers Association (NEMA), according to the combination of properties that determine the suitabiHty of a laminate for a particular use. Eiber reinforcements make laminate-effective properties orthotropic. [Pg.532]

Electrical Laminates. A significant use for epoxy resins is in the manufacture of copper-clad epoxy-glass printed circuit boards. Systems are available that meet the National Electrical Manufacturers Association (NEMA), GIO, Gil, FR3, FR4, FR5 specifications. Currently the majority of boards are manufactured to the fiame-retardant FR4 specification. The flame retardance is achieved by the use of a soHd epoxy resin based on... [Pg.371]

Environmental Enclosures Enclosures for valve accessories are sometimes required to provide protection from specific environmental conditions. The National Electrical Manufacturers Association (NEMA) provides descriptions and test methods for equipment used in specific environmental conditions in NEMA 250. Protection against rain, windblown dust, hose-directed water, and external ice formation are examples of environmental conditions that are covered by NEMA standards. [Pg.786]

There are a number of electric motor types available. These motors are classified by the National Electrical Manufacturers Association (NEMA). These electric motor classifications are presented in the NEMA standards [7]. [Pg.401]

The National Electrical Manufacturers Association (NEMA) has developed a standard that specifies minimum pulley diameters that should be used on electric motors. Since motor bearings are specified using a relatively small maximum overhung load, minimum pulley diameters can have a dramatic effect on motor bearings. The increase in tension that is created by smaller pulleys can transmit a potentially destructive side-load on the bearings. [Pg.972]

National Electrical Code (NEC), 21 847 National Electrical Manufacturers Association (NEMA), 17 843 specifications, 10 453-454 National Emission Standard for Hazardous Air Pollutants (NESHAP), 1 812 21 585... [Pg.612]

National Electric Manufacturers Association (NEMA), 165 E. 44th St., New York. [Pg.421]

National Carbon Co., 166 National Committee on Radiation Protection and Measurement, 430, 432 National Distillers Corp., 278 National Electrical Manufacturers Association (NEMA), 138, 421 National Fire Protection Association (NFPA), 31, 135, 326, 329, 330 National Industrial Conference Board, 269... [Pg.522]

In the USA the National Electrical Manufacturing Association (NEMA) places certain standards on electrical products. This organisation has established a NEMA type coding system for enclosures. Each type, numbered from 1 to 13, describes a specific type of protection, see ANSI/NEMA standard 250. [Pg.262]

The National Electrical Manufacturers Association (NEMA) has developed a number of useful standards for measurement of MR parameters. The current list of NEMA MR standards is given in Table 24.2. For more information see http //www.nema.org/... [Pg.629]


See other pages where National Electrical Manufacturers Association NEMA is mentioned: [Pg.2482]    [Pg.262]    [Pg.545]    [Pg.550]    [Pg.487]    [Pg.403]    [Pg.286]    [Pg.269]    [Pg.371]    [Pg.119]    [Pg.487]    [Pg.2237]    [Pg.487]    [Pg.2417]    [Pg.91]    [Pg.107]    [Pg.2486]    [Pg.371]    [Pg.908]    [Pg.2755]    [Pg.641]    [Pg.64]    [Pg.64]    [Pg.183]    [Pg.96]    [Pg.202]   
See also in sourсe #XX -- [ Pg.8 ]




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