GB/T 37814-2019Technical specification for remote power supply system in fully-mechanized mining and top coal caving mining face (English PDF)
综采综放工作面远距离供电系统技术规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
August 30, 2019
Implementation date
March 1, 2020
Scope
GB/T 37814-2019 is the English-translated version of 综采综放工作面远距离供电系统技术规范.
GB/T 37814-2019 is the Chinese standard "Technical specification for remote power supply system in fully-mechanized mining and top coal caving mining face".
Its scope clause reads: This standard stipulates the overall requirements, applicable conditions and equipment selection techniques for the long-distance power supply system of fully mechanized coal caving face in Jinggong Coal Mine.
Requirements, system installation and electrical protection. This standard is applicable to the movement of fully mechanized fully mechanized top coal caving face in wells and coal mines newly built, rebuilt and expanded at 0.09Mt/a and above.
The integrated design of the long-distance power supply system where the power station and the electrical control equipment are placed separately. Its clauses include terms and definitions; general requirements.
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Document preview — GB/T 37814-2019
National Standard of the People's Republic of China
- ICS
- 73.100.01
- Classification
- D 90
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 General requirements
1 Scope
This standard stipulates the overall requirements, applicable conditions and equipment selection techniques for the long-distance power supply system of fully mechanized coal caving face in Jinggong Coal Mine.
Requirements, system installation and electrical protection.
This standard is applicable to the movement of fully mechanized fully mechanized top coal caving face in wells and coal mines newly built, rebuilt and expanded at 0.09Mt/a and above.
The integrated design of the long-distance power supply system where the power station and the electrical control equipment are placed separately.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 8286-2017 Mine Flameproof Mobile Substation
GB/T 30844.1 1kV and below general frequency control equipment - Part 1. Technical conditions
GB/T 37808-2019 Design specification for conventional power supply system for fully mechanized fully mechanized caving face
3 Terms and definitions
The following terms and definitions as defined in GB/T 8286-2017 apply to this document. For ease of use, the following is repeated
Certain terms and definitions in GB/T 8286-2017.
3.1 Remote power supply
The working surface equipment is separately installed by the control equipment such as the mobile substation and the combination switch, and the power distribution mode of long-distance power supply is used in the middle.
3.2 Mining flameproof mobile substation
Supply and transformation equipment for coal mine underground, dry type transformer and high voltage load switch or high pressure vacuum switch, cable connector and low voltage
A mobile complete set of parts such as a feed switch or a low-voltage protection box.
[GB/T 8286-2017, definition 3.1]
3.3 Mine explosion-proof and intrinsically safe vacuum combination switch
A coal mine underground power supply control and protection device, which is mainly composed of a combination switch of an isolating switch and a main contactor, can realize more
Road control.
4 General requirements
4.1 General design rules
4.1.1
The fully mechanized long-distance power supply system shall be designed according to the equipment selection of the designed fully mechanized mining face, including the power supply of the working face.
Seeking, power supply mode and load calculation, voltage level determination, determination of distribution point location, selection and protection of power supply and distribution equipment, cable selection and calculation
Design and calculation of electrical equipment installation, remote voltage supply and electrical protection verification.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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