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NEMA, the National Electrical Manufacturers Association, is a nonprofit organization that develops and publishes over 500 standards regarding the production and manufacturing processes for technologies involving the generation, transmission and use of electricity. Headquartered near Washington, D.C., United States, NEMA has approximately 450 member companies and, through them, NEMA standards affect over $120 billion dollars worth of United States domestic production. NEMA also serves as the administrator for the U.S. TAGs (United States Technical Advisory Group) to ISO/TC 145 (International Organization for Standardization/Technical Committee) and to some of its subcommittees. Standards from NEMA are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need - please contact us at: [email protected] or 1-212-642-4980 or Request Proposal Price.
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Delivers specifications for design, application, use, and placement of safety signs and labels on a wide variety of products.
Sets forth requirements for the design and location of product safety messages in collateral materials for a variety of products.
Sets forth the technical definitions, color standards, and color tolerances for safety colors.
Includes all six parts and color chart:
Establishes nominal voltage ratings and operating tolerances for 60Hz electric power systems above 100V. Includes preferred voltage ratings up to and including 1,200kV maximum system voltage.
Establishes the physical aspects and acceptable performance criteria for 0.1, 0.2, and 0.5 accuracy class electricity meters meeting Blondel's Theorem.
Regulates requirements for the design, application, and use of safety signs in facilities and in the environment through consistent visual layout. Reorganized to best describe the five types of safety signs used in facilities, the 2011 edition of this standard is revised to better harmonize with ANSI Z535.4, ANSI Z535.5, and ANSI Z535.6
Applies to the classification of degrees of protection provided by enclosures for electrical equipment with a rated voltage not exceeding 72.5 kV.
Provides general criteria for the design, evaluation, and use of safety symbols to identify and warn against specific hazards and information to avoid personal injury.
This Code establishes acceptable performance criteria for new types of ac watthour meters, demand meters, demand registers, pulse devices, and auxiliary devices. It describes acceptable in-service performance levels for meters and devices used in revenue metering. It also includes information on related subjects, such as recommended measurement standards, installation requirements, test methods, and test schedules. This Code for Electricity Metering is designed as a reference for those concerned with the art of electricity metering, such as utilities, manufacturers, and regulatory bodies.