This standard specifies the product classification, technical requirements, test method, inspection rule, marking, packaging, transportation and storage of signal equipment of coal mine (hereinafter referred to as "signal equipment").
This standard is applicable to the signal equipment of coal mine and the acoustic-optical signal part of other equipment.
This standard is not applicable to the traffic light in rail transportation.
2 Normative References
GB 156 Voltage and Frequency Ratings for Electrical Equipment
GB 191 Packaging - Pictorial Markings for Handling of Goods
GB 2682 Colors of Indicator Lights and Push-buttons Used in Electrical Assembly Devices
GB 3836.1 Electrical Apparatus for Explosive Atmospheres - General Requirements
1 Subject Content and Application Scope
This standard specifies the product classification, technical requirements, test method, inspection rule, marking, packaging, transportation and storage of signal equipment of coal mine (hereinafter referred to as "signal equipment").
This standard is applicable to the signal equipment of coal mine and the acoustic-optical signal part of other equipment.
This standard is not applicable to the traffic light in rail transportation.
2 Normative References
GB 156 Voltage and Frequency Ratings for Electrical Equipment
GB 191 Packaging - Pictorial Markings for Handling of Goods
GB 2682 Colors of Indicator Lights and Push-buttons Used in Electrical Assembly Devices
GB 3836.1 Electrical Apparatus for Explosive Atmospheres - General Requirements
GB 3836.2 Electrical Apparatus for Explosive Atmospheres - Flameproof Electrical Apparatus “d”
GB 3836.3 Electrical Apparatus for Explosive Atmospheres - Increased Safety Electrical Apparatus “e”
GB 3836.4 Electrical Apparatus for Explosive Atmospheres - Intrinsically Safe Circuits and Electrical Apparatus “i"
GB 4942.2 Degrees of Protection Provided by Enclosures for Low-voltage Apparatus
GB 5080.1~5080.7 Equipment Reliability Testing
GB 12173 Mining Electrical Apparatus for Non Hazardous Area
MT 209 General Technical Requirements for Electric and Electronic Products used for Communication, Detection and Control in Coal Mine
MT 210 Basic Test Method for Electric and Electronic Products used for Communication, Detection and Control in Coal Mine
MT 211 Quality Inspection Rule for Electric and Electronic Products used for Communication, Detection, and Control in Coal Mine
MT 286 Model Compilation Method and Management Method for Automotive Product of Coal Mine Communication
3 Product Classification
3.1 Model
3.1.1 The composition of signal equipment model is as follows:
Contents of MT 287-1992
1 Subject Content and Application Scope
2 Normative References
3 Product Classification
4 Technical Requirement
5 Test Method
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Appendix A (Informative) Environmental Noise Level of Underground Coal Mine
Additional Explanation
