MT 451-2011 (English Version) PDF

Scope: This standard specifies the safety performance requirements, test methods and inspection rules for flameproof low-voltage three-phase asynchronous motors used in coal mines. This standard applies to motors with rated voltages up to 1140V used in coal mines with methane explosion hazards.

MT 451-2011 Referenced Document

AQ 1043 Mining Products Safety Label
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 755 Rotating electrical machines.Rating and performance
GB/T 10111 Generation of random numbers and procedures applied to sampling inspection for product quality
GB/T 1032 Three-phase asynchronous motor test methods*， 2023-09-07 Update
GB/T 13813 Safety test method and judgment rules for friction sparks of metal materials used in coal mines*， 2023-05-23 Update
GB/T 1410 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials
GB/T 191 Packaging.Pictorial marking for handling of goods
GB/T 228 Metallic materials--Tensile testing at ambient temperature
GB/T 2423.4 Environmental testing for electrical and electronic products - Part 2: Test method Test Db alternating damp heat (12h + 12h cycle)
GB/T 4942.1 Degrees of protection provided by the integral design of rotating electrical machined (IP code) - Classification

2011 MT 451-2011 General sepcification for lowvoltage three phases flameproofinduction motor for coal mine
1995 MT 451-1995 Flameproof low voltage three-phase asynchronous motors intended to be used in coal mines General technical specification for safety performance