Standard No.:	GB/T 12974.2-2023
English Name:	General specification for a.c. lift motor—Part 2: Permanent magnet synchronous motor
Chinese Name:	交流电梯电动机通用技术条件 第2部分：永磁同步电动机
Chinese Classification:	K21    Synchronous machine
Professional Classification:	GB    National Standard
ICS Classification:	29.160.30 29.160.30    Motors 29.160.30
Issued by:	SAMR; SAC
Issued on:	2023-9-7
Implemented on:	2024-4-1
Status:	valid
Superseding:	GB/T 12974.2-2014 General specification for a.c. lift motor―Part 2:Permanent magnet synchronous motor
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	180.0
Delivery:	via email in 1~3 business day

General specification for a.c. lift motor - Part 2: Permanent magnet synchronous motor 1 Scope This document specifies the types and basic parameters, general requirements, technical requirements, inspection rules, marking, packaging, and warranty requirements of permanent magnet synchronous motors for elevators, and describes the corresponding test methods. This document is applicable to the manufacturing of permanent magnet synchronous motors for various passenger elevators, cargo elevators, medical elevators, and household elevators. It may serve as a reference for the manufacturing of various series of motors derived from this series of motors. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 191-2008 Packaging - Pictorial markings for handling of goods GB/T 755-2019 Rotating electrical machines - Rating and performance GB/T 997-2022 Rotating electrical machines - Classification of types of construction, mounting arrangements and terminal box position for (IM Code) GB/T 1971-2021 Rotating electrical machines - Terminal markings and direction of rotation GB/T 1993-1993 Cooling methods for rotating electrical machines GB/T 4772.1-1999 Dimensions and output series for rotating electrical machines - Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080 GB/T 4942-2021 Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification GB/T 10068-2020 Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity GB/T 10069.1-2006 Measurement of the airborne noise emitted by rotating electrical machines and the noise limits - Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines GB/T 12665-2017 Requirements of damp-heat testing of electrical machine for service in general environmental condition GB/T 14711 General requirements for safety of small and medium size rotating electrical machines GB/T 22669-2008 Test procedures for three-phase permanent magnet synchronous machines GB/T 22719.1-2008 Interturn insulation of random-wound winding for AC low-voltage electrical machines - Part 1: Test methods GB/T 22719.2-2008 Interturn insulation of random-wound winding for AC low-voltage electrical machines - Part 2: Test limits 3 Terms and definitions No terms and definitions are listed in this document. 4 Types and basic parameters 4.1 Types 4.1.1 The ingress protection for enclosure of permanent magnet synchronous motors (hereinafter referred to as motors) for elevators is IP20 or IP54 according to the requirements of GB/T 4942-2021.

Foreword i Introduction ii 1 Scope 2 Normative references 3 Terms and definitions 4 Types and basic parameters 5 General requirements 6 Technical requirements 7 Test methods 8 Inspection rules 9 Marking, packaging and warranty period