Standards

NB/T 11757-2024 Technical specification for low voltage unified power quality conditioner

This document specifies the form, technical requirements, test methods, and inspection rules for low-voltage unified power quality regulators.
This document is applicable to unified power quality regulators operating at an AC frequency of 50 Hz and voltage levels of 1 kV (1,140 V) and below.

Publish Date: 2024-12-25

NB/T 11705-2024 Drainage anchor rock engineering and installation design guidelines

This document is applicable to the temporary or permanent suction anchors for rock and soil engineering and installation design of tensioned, semi-tensioned, and suspension chain mooring systems in clay. Among them, the penetration and displacement analysis, offshore installation design analysis, and offshore installation procedure design can be used as a reference for the suction piles of underwater structures.

Publish Date: 2024-12-25

NB/T 11704-2024 Experimental Sample Preparation Method for Natural Gas Hydrate - NB/T 11704-2024

This document is applicable to the preparation of experimental samples of natural gas hydrates.

Publish Date: 2024-12-25

NB/T 11703-2024 NB/T 11703-2024 Submerged Oil and Gas Production Control System Power, Communication and Hydraulic Design Analysis Recommended Practices

This document is applicable to the design and analysis of underwater production control systems for offshore oil and gas field development.

Publish Date: 2024-12-25

NB/T 11702-2024 Design specifications for semi-submersible offshore production platforms

This document is applicable to the design work of semi-submersible production platforms used in oil and gas development in the sea areas under the jurisdiction of the People's Republic of China.

Publish Date: 2024-12-25

NB/T 11701-2024 NB/T 11701-2024 Submarine pipeline terminal equipment technical specification

This document is applicable to subsea pipeline terminal equipment that is independently installed or deployed simultaneously with submarine pipelines. Other online underwater structures can refer to it for use.

Publish Date: 2024-12-25

NB/T 11748-2024 Panel air cooler

The design pressure applicable to this document shall not exceed 4.0MPa. The design temperature range applicable to this document shall be determined based on the allowable operating temperature of the material.

Publish Date: 2024-12-25

NB/T 11816-2025 Steel insulated spiral woven pipe bundled container (Fabric Ring Covered Container)

Publish Date: 2024-12-25

NB/T 11747-2024 Gas storage well

The general parameters applicable to the gas storage wells described in this document are as follows: a) the design pressure shall not exceed 50 MPa; b) the design temperature shall be between -40°C and 60°C; c) the vertical burial depth shall not exceed 1,000 m.

Publish Date: 2024-12-25

NB/T 11746-2024 The quality and safety technical specifications for organic silicone heat carrier

This document is applicable to silicone heat carriers used in solar thermal power generation, organic heat carrier boilers, and other circulating heating equipment, but it is not applicable to non-circulating heating equipment and silicone heat carriers used solely for the purposes of freezing and low-temperature cooling.

Publish Date: 2024-12-25

NB/T 11745-2024 Mobile vacuum insulated liquid hydrogen pressure vessel

This document applies to mobile liquid hydrogen containers that meet the following conditions simultaneously: a) The working pressure of the inner container is not more than 1.0 MPa; b) The geometric volume of the inner container is not less than 15 m3 and not more than 50 m3; and the insulation method is high-vacuum multi-layer insulation.

Publish Date: 2024-12-25

NB/T 11731-2024 Determination method for gas generation characteristics of mineral insulating oil under thermal oxidation conditions

This document describes the test method for the gas production characteristics of mineral insulating oil under thermal oxidation conditions (105°C). This document is applicable to the detection of mineral insulating oil. For other insulating liquids that need to test the gas production characteristics under thermal oxidation conditions (105°C), this method can be referenced.

Publish Date: 2024-12-25