GB/T 37808-2019 in English
VALIDDesign specification for conventional power supply system in fully-mechanized mining and top coal caving mining face
- Issued on:2019-08-30
- Implemented on:2020-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 37808-2019 |
| Document status: | VALID |
| Title in English: | Design specification for conventional power supply system in fully-mechanized mining and top coal caving mining face |
| Title in Chinese: | 综采综放工作面常规供电系统设计规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2019-08-30 |
| Implemented on: | 2020-03-01 |
| ICS Classification: | 73.100.01-Mining equipment in general |
| Chinese Classification: | D90-Mining machinery equipment in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | conventional power supply system
coal mining machine power supply system drum coal mining machine types fully-mechanized mining |
| Related Topics: | working surface
GBT37808 Design of conventional power supply system for fully mechanized mining and caving working face Intelligent fully mechanized mining working face design Design specifications for movable working ladders |
《GB/T 37808-2019综采综放工作面常规供电系统设计规范》由603（中国煤炭工业协会）归口，主管部门为中国煤炭工业协会。
Introduction
1. Background and significance of standard formulation
GB/T 37808—2019 "Design Specification for Conventional Power Supply System of Comprehensive Mining and Caving Face" was formulated to meet the development needs of comprehensive mechanized mining technology in coal mines. As the coal industry's requirements for efficient and safe mining technology continue to increase, the reliability and safety of the power supply system have become key factors in ensuring production.
2. Comparison of standard frameworks
| Standard Dimensions | GB/T 37808—2019 | Reference Standards | Comparative Analysis |
|---|---|---|---|
| Scope of Application | Design of power supply system for fully mechanized mining and caving face in newly built, rebuilt and expanded underground coal mines. | MT/T 84 Drum coal mining machine types and basic parameters | More emphasis is placed on the combination of comprehensive mechanization and top coal caving technology. |
| Voltage level requirements | $10~\mathrm{kV}$ and $3300~\mathrm{V}$ are recommended, which is determined according to the power of the equipment. | MT/T 871 Mining explosion-proof low-voltage AC vacuum feeder switch | Added detailed specifications for high voltage levels. |
| Cable technical requirements | MYPTJ, MYPT and other models must meet the technical indicators of GB/T 12972.1. | GB/T 8286-2017 Mining Flameproof Mobile Substation | More stringent requirements for cable selection and laying. |
3. Analysis of key technical points of the standard
3.1 Configuration requirements of mobile substation
Mobile substation is the core equipment for power supply of comprehensive mining working face, and must meet the technical requirements of GB/T 8286. It is recommended to adopt the combination of "mining flameproof high-voltage vacuum distribution device + mining flameproof dry-type transformer + mining flameproof low-voltage comprehensive protection box".
3.2 Application of combination switch
The application of mining flameproof and intrinsically safe combination switch on important equipment such as coal mining machine needs to select appropriate rated current and number of control circuits according to load demand.
4. Implementation Suggestions
- Strictly follow the standard requirements for cable selection and laying to ensure that the voltage loss is within the allowable range.
- Regularly adjust the location of the distribution point according to the progress of the working face to maintain the safety and reliability of the power supply system.
- Strengthen the maintenance of electrical equipment, especially key components such as mobile substations and feeder switches.
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