Standards

NB/T 10998-2022 Active

NB/T 10998-2022 NB/T 10998-2022 Small hydropower generator unit grid-connected safety conditions and evaluation specifications

This document specifies the essential items and evaluation items for the grid-connected safety assessment of small hydropower stations in three aspects: electrical primary equipment, electrical secondary equipment, and safety production management. This document is applicable to small hydropower stations with a total installed capacity of 6 MW to 50 MW and connected to the grid through voltage levels of 10 kV and above. For small hydropower stations with a total installed capacity of less than 6 MW or connected to the power system through other voltage levels, this document shall be implemented as a reference.

Publish Date: 2022-11-04

NB/T 10997-2022 Active

NB/T 10997-2022 The safety conditions and evaluation specifications for grid-connected photovoltaic power stations

This document specifies the essential items and evaluation items for the safety assessment of three aspects of grid-connected photovoltaic power stations: primary electrical equipment, secondary electrical equipment, and safety production management. This document applies to new, renovated, and expanded photovoltaic power stations and photovoltaic power systems that are grid-connected at voltage levels of 35 kV and above, as well as those grid-connected at voltage levels of 10 (20) kV. Other photovoltaic power systems that have already been grid-connected should refer to and implement this document accordingly.

Publish Date: 2022-11-04

NB/T 10996-2022 Active

NB/T 10996-2022 Wind power plant grid-connected safety conditions and evaluation specifications

This standard specifies the essential items and evaluation items for the grid-connected safety assessment of wind turbines in onshore and offshore wind power plants, as well as the control systems, primary electrical equipment, secondary electrical equipment, and safety management of wind power plants. This standard applies to wind power plants that are grid-connected at voltages of 35 kV and above. Wind power plants connected at other voltage levels may refer to this standard for implementation.

Publish Date: 2022-11-04

NB/T 11030-2022 Active

NB/T 11030-2022 General requirements for coal mine low-concentration gas generator sets

This document is applicable to the design and manufacture of low-concentration gas power generation units in coal mines, the design of gas power generation projects, safety evaluation, environmental evaluation, and project acceptance. High-concentration gas power generation units in coal mines can be used for reference.

Publish Date: 2022-11-04

NB/T 11029-2022 Active

NB/T 11029-2022 Coal slurry drying technology specification for gas-storing and oxidative oxidation furnace flue gas from coal mine

This document is applicable to the engineering design, construction, and acceptance of gas-fired heat-storage oxidation furnaces used for drying coal sludge in coal mines.

Publish Date: 2022-11-04

NB/T 11028-2022 Active

NB/T 11028-2022 Mine abandoned gas extraction drill hole sealing technical specification for underground coal mine gas extraction

This document is applicable to the permanent sealing of abandoned gas extraction boreholes.

Publish Date: 2022-11-04

NB/T 31005-2022 Active

NB/T 31005-2022 NB/T 31005-2022 Wind Power Electricity Quality Test Methods for Wind Farm

This document specifies the basic requirements, test items, test equipment, and test methods for power quality testing of wind farms. This document is applicable to new or modified (expanded) onshore wind farms connected to the power system through lines with voltage levels of 110 (66) kV and above. Wind farms connected to the power system through other voltage levels may refer to this document for implementation.

Publish Date: 2022-11-04

NB/T 11027-2022 Active

NB/T 11027-2022 Mine anti-explosion prediction map drawing specification

This document is applicable to the drawing of anti-sudden outburst prediction maps for underground coal mines.

Publish Date: 2022-11-04

NB/T 14020.3-2022 Active

NB/T 14020.3-2022 Shale gas, Tools and Equipment, Part 3: Fracturing sliding sleeve at toe end

This document specifies the classification and models, basic parameters, technical requirements, test methods, inspection, marking, packaging, transportation, and storage of toe-end fracturing sleeves for shale gas wells. This document is applicable to toe-end fracturing sleeves for shale gas wells, and toe-end fracturing sleeves for other oil and gas wells can be implemented in accordance with this document.

Publish Date: 2022-11-04

NB/T 14004.4-2022 Active

NB/T 14004.4-2022 Shale gas cementing engineering Part 4: Evaluation method for cement annulus sealability

This document specifies the cement ring sealing evaluation device, testing process, and evaluation method for shale gas wells. This document is applicable to the sealing evaluation of cement rings during the drilling and completion, extraction, and other operations of shale gas wells.

Publish Date: 2022-11-04

NB/T 14002.4-2022 Active

NB/T 14002.4-2022 Shale gas reservoir modification - Part 4: Horizontal well pumping bridge plug-perforation joint operation technology recommended practices

This document specifies the technical requirements for the construction design, preparation, process and methods, data collection, and health, safety, and environmental protection of the combined operation of pumping bridge plugs and perforation in shale gas horizontal wells. This document is applicable to the combined operation of pumping bridge plugs and perforation in shale gas horizontal wells. Other types of horizontal wells in oil and gas reservoirs can refer to this document for implementation.

Publish Date: 2022-11-04

NB/T 14002.3-2022 Active

NB/T 14002.3-2022 Shale gas reservoir modification - Part 3: Fracturing fluid recovery and treatment methods

This document specifies the surface recovery system for shale gas fracturing flowback fluids, the recommended water quality treatment processes for the reuse and external discharge of fracturing flowback fluids, the recommended water quality indicators for reuse after treatment, and the detection and analysis methods for water quality indicators. This document is applicable to the recovery and treatment of shale gas fracturing flowback fluids.

Publish Date: 2022-11-04