درباره ما
NEMA - National Electrical Manufacturers Association: Recent submissions
Now showing items 41-60 of 346
-
Harmonics Requirements for Products in North American Public Networks
Abstract: The National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document herein is one, are developed through a voluntary standards development process. This process brings ... -
Portable Primary Cells and Batteries with Aqueous Electrolyte — Safety Standard
Abstract: This American National Standard specifies tests and requirements for portable primary batteries with aqueous electrolyte and zinc anode (non-lithium) to ensure their safe operation under normal use and reasonably foreseeable ... -
Arc welding equipment — Part 6: Limited duty equipment
Abstract: This part of IEC 60974 specifies safety and performance requirements applicable to limited duty arc welding and cutting power sources and auxiliaries designed for use by laymen. Electrically powered equipment is intended ... -
Lighting Equipment —Electromagnetic Compatibility (EMC) General Requirements and Criteria
Abstract: This Standard defines the electromagnetic compatibility “EMC” (immunity and Interference) performance levels, testing methods, and performance criteria for lighting products in a frequency range from 0 to 400 GHz. This ... -
Portable Lithium Primary Cells and Batteries — Safety Standard
Abstract: This American National Standard specifies tests and requirements for portable primary lithium cells and batteries, both the chemical systems and the types covered in ANSI C18.3M, Part 1, to ensure their safe operation under ... -
Arc welding equipment — Part 1: Welding power sources
Abstract: This part of IEC 60974 is applicable to power sources for arc welding and allied processes designed for industrial and professional use, and supplied by a voltage not exceeding 1 000 V, battery supplied or driven by ... -
Medical Imaging Device Lifecycles
Abstract: Medical Imaging devices consist of highly complex and powerful software and hardware components that are closely integrated to perform highly specialized functionality. The research and development of new imaging devices ... -
Portable Lithium Primary Cells and Batteries — General and Specifications
Abstract: This Standard applies to portable lithium primary cells and batteries. This edition includes the following electrochemical systems: a. Lithium/carbon monofluoride; b. Lithium/manganese dioxide, and c. Lithium/iron disulfide -
Photo-Luminescent Exit Signage — Factual Review
Abstract: The requirements or guidelines presented in this document, a NEMA Lighting Systems Division white paper, are considered technically sound at the time they are approved for publication. They are not a substitute for a ... -
Application Considerations: Mechanical Properties
Abstract: Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document. NEMA Standards and guideline publications, of which the document contained herein ... -
Standard for Category 6 and 6A, 100 Ohm, Individually Unshielded Twisted Pairs, Indoor Cables (With or Without an Overall Shield) for Use in LAN Communication Wiring Systems - (ICEA S-116-732-2019)
Abstract: This Standard covers mechanical, electrical, and flammability requirements for thermoplastic insulated and jacketed, copper conductor, individually unshielded twisted pairs, with or without overall shield intended for use ... -
Roadway and Area Lighting Equipment — Luminaire Four-Pin Extension Module and Receptacle — Physical and Electrical Interchangeability and Testing
Abstract: This document defines the following roadway and area lighting equipment, which may be physically and electrically interchanged to operate within established values: a. A locking type 4-pin Luminaire Extension Module ... -
Electrical Submeter — General Requirements
Abstract: The requirements of this Standard cover metrological requirements and associated testing for electrical energy submeters. The Standard applies to stand-alone meters with Standard inputs or metering systems comprising ... -
NEMA 250 Enclosure Types
Abstract: The purpose of this document is to provide general information on the definitions of NEMA enclosure types, a guide for comparing specific applications of enclosures, and a comparison between NEMA enclosure type numbers, ... -
Electrical Submeter — Active Energy Accuracy
Abstract: The requirements of this Standard cover metrological requirements and associated testing for AC meters rated at not more than 1000 V that measure active energy used in electrical energy submetering applications. -
Suspension and Post Type Insulators for Electric Power Overhead Lines General Use Information
Abstract: Although NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does not write the documents, nor does it independently test, evaluate, or verify the accuracy or completeness ... -
Installation Guidelines for Expansion and Expansion/Deflection Fittings
Abstract: This guideline provides information on the proper application and installation of expansion and expansion/deflection fittings intended for use in hazardous and non-hazardous locations in accordance with the National ... -
for Roadway and Area Lighting Equipment—Ingress Protection (Resistance to Dust, Solid Objects, and Moisture) for Luminaire Enclosures and Devices
Abstract: This Standard details the requirements for ingress protection of luminaires in roadway and area lighting equipment, installed for their intended use and specified by end-user. While these requirements are suitable for ... -
Evaluating Earthquake Damaged Electrical Equipment Guide
Abstract: This publication serves as a guide that represents the consensus of National Electrical Manufacturers Association (NEMA) Member companies and is not intended to override the recommendations of the specific equipment ... -
NEMA Seismic Guideline 1—General Requirements for Seismic Qualification of Electrical Equipment for Commercial Building Codes
Abstract: This guide establishes general guidelines for seismic qualification of acceleration sensitive NEMA electrical equipment rigidly attached to the building structure or foundation. Equipment not rigidly attached to the ...