1 Scope
This standard specifies the safety performance requirements, test methods and inspection rules for low voltage three phases flameproof induction motor for coal mine.
This standard is applicable to motor used in coalmine shaft, subject to 11 40V rated voltage and potential methane explosion (hereinafter referred to as motor).
2 Normative References
The following normative documents contain provision which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments to (excluding amending error in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document referred to applies.
GB/T 191 Packaging-Pictorial Marking for Handling of Goods
GB/T 228 Metallic materials - Tensile testing at ambient temperature
GB 755 General Specifications for Rotary Electrical Machines
GB/T 1032 Test Procedure for Three-phase Induction Motors
GB/T 1410 Methods of Test for Volume Resistivity and Surface Resistivity of Solid Electrical Insulating Materials
GB/T2423.4 Basic Environmental Testing Procedures for Electric and Electronic Products - Test Db: Damp Heat, Cyclic"
GB l3813 Testing Method and Judging Rule of Safety to Friction Spark of Metallic Material for Coal Mine
GB 3836.1-2000 Electrical Apparatus for Explosive Gas Atmospheres - Part 1: General Requirements
GB 3836.2-2000 Electrical Apparatus for Explosive Gas Atmospheres - Part 2: Flameproof Enclosure "d"
GB 3836.3-2000 Electrical Apparatus for Explosive Gas Atmospheres - Part 3: Increased Safety "e"
GB/T 4942.1 Classification of Degrees of Protection Provided by Enclosures for Rotating Machines
GB/T 10111 Generation of Random Numbers and Procedures Applied to Sampling Inspection for Product Quality
AQ 1043 Mining Products Safety Label
3 Normal Operating Conditions of Motor
a) Ambient pressure: 86kPa~110kPa;
b) Ambient temperature : -20℃~+40℃;
c) Relative air humidity: Not greater than 98% (at +25℃);
d) In a coalmine shaft subject to potential methane explosion;
e) Where there is no visible shake and fierce shock vibration;
f) Class of pollution: Class 3;
g) Installation type: III.
1 Scope
2 Normative References
3 Normal Operating Conditions of Motor
4 Safety Performance Requirements
5 Test Methods
6 Inspection Rules
7 Packing, Transport And Storage
