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Standard

IEEE 1349-2021

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Abstract

Revision Standard - Active. Three-phase and single-phase ac synchronous and induction electric machines in ratings 0.18 kW (1/4 hp) and larger are covered in this guide. Primary emphasis is on the use of open or nonexplosionproof or nonflameproof enclosed machines in Zone 2 and Class I, Division 2 locations as covered in the NEC(R) (NFPA 70-2020) and CE Code(R) (CSA C22.1-2021) as applicable. Surface temperature test methods and sine wave and non-sine wave applications are covered. Precautions against excessive surface temperatures and sparking are included. To help mitigate hot surface temperatures and sparking, this document provides guidance for selecting, operating, and maintaining machines in Zone 2 and Class I, Division 2 locations. This guide does not cover ac wound rotor machines and dc electric machines. Machines installed in locations other than Zone 2 and Class I, Division 2 as covered in NFPA 70-2020 or CSA C22.1-2021 are not covered in this guide. This document is not a specification and is not intended to be used as a specification for purchasing electric machines. The voltage breaks in this document are 1000 V and less, and over 1000 V. (Additional documents for this standard can be downloaded at https://standards.ieee.org/content/dam/ieee-standards/standards/web/download/1349-2021_downloads.zip)

Products specifications

  • Standard from IEEE
  • Published:
  • Document type: IS
  • Pages
  • Publisher: IEEE
  • Distributor: IEEE
  • ICS: 29.160.30
  • ICS: 29.260.20
  • National Committee: IEEE Industry Applications Society / Petroleum and Chemical Industry

Product Relations

  • Referred by: IEEE 303-2023
  • Referred by: IEEE 303-2023
  • Refers: IEEE 841-2021
  • Refers: IEEE 1068-2015
  • Revises: IEEE 1349-2011
  • Refers: IEEE 303-2004
  • Refers: API 546, Brushless Synchronous Machines--500 KVA and Larger.
  • Refers: API 541, Form-Wound Squirrel-Cage Induction Motors--375 kW (500 Horsepower) and Larger.
  • Refers: NFPA 70-2020, National Electrical Code(R) (NEC(R))
  • Refers: NEMA MG 1, Motors and Generators.
  • Refers: CAN/CSA C22.1-2021, Canadian Electrical Code(R) (CE Code(R)) Safety Standard for Electrical Installations.
  • Refers: API 547, General-Purpose Form-Wound Squirrel Cage Induction Motors--250 Horsepower and Larger.