Standard No.:	JB/T 7565.4-2004
English Name:	Specification of flameproof three phases asynchronous motor Part 4:Series YB2 flameproof (Exd Ⅱ CT1~T4) three phases asynchronous motor (Frame size 63 to 355)
Chinese Name:	隔爆型三相异步电动机技术条件 第4部分：YB2系列隔爆型（ExdⅡCT1～T4）三相异步电动机 (机座号63～355)
Chinese Classification:	K25    Explosion-proof electric machine
Professional Classification:	JB    Professional Standard - Machinery
ICS Classification:	29.260.20 29.260.20    Electrical apparatus for explosive atmospheres 29.260.20
Issued by:	全国防爆电机分标委会
Issued on:	2004-10-20
Implemented on:	2005-4-1
Status:	superseded
Superseded by:	JB/T 7565.4-2015
Superseded on:	2016-3-1
Superseding:	JB/T 5338-1991
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	100.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the YB 2 flame-proof (Exd II CTl-T4) three-phase asynchronous motor in terms of type, basic parameters and dimension, technical requirements, test methods, inspection rules and requirements for marking and packaging. This standard is applicable to flame-proof (ExdⅡCTl-T4) three-phase asynchronous motor (frame size 63-355) (hereinafter referred to as motor) and used by motors derived from this series for reference.

Contents Foreword I 1 Scope 2 Normative References 3 Type, Basic Parameters and Dimensions 4 Technical Requirements 5 Test Methods and Inspection Rules 6 Marking and Packaging

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* 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 1 080
* GB/T 4942.1-2006 Degrees of Protection Provided by the Integral Design of Rotating Electrical Machined (IP Code)-Classification
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* GB/T 10069.1-2006 Measurement of 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
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* JB/T 9615.1-2000 Test methods of the interturn insulation on random wound winding for AC low-voltage machines