Standards

DL/T 2690.2-2023 Active

DL/T 2690.2-2023 DL/T 2690.2-2023 Electric Heating System Technical Specification Part 2: Equipment

This document specifies the classification, functions, performance, performance testing, power quality, and electromagnetic radiation of electric heating equipment, as well as requirements for labeling, packaging, transportation, and storage. This document is applicable to the selection, testing, and acceptance of direct-heating, heat-storage, and heat pump electric heating systems.

Publish Date: 2023-12-28

DL/T 2690.1-2023 Active

DL/T 2690.1-2023

This document specifies the general requirements, system composition, system classification, and application scenarios of electric heating systems, as well as design requirements, functional requirements, and technical requirements. This document is applicable to the design, construction, and installation of electric heating systems, as well as acceptance and operation, except for plug-and-play electric heating equipment.

Publish Date: 2023-12-28

DL/T 2689-2023 Active

DL/T 2689-2023 DL/T 2689-2023 Design and Management Code for Cooling Water Discharge Treatment of Coal-fired Power Plants - Reverse Osmosis Method

This document specifies the general requirements for the reverse osmosis treatment technology of circulating cooling water discharge in thermal power plants, as well as the technical and performance acceptance requirements for the pretreatment system and the reverse osmosis desalination system. This document is applicable to the reverse osmosis desalination treatment system for circulating cooling water discharge in thermal power plants.

Publish Date: 2023-12-28

DL/T 2688-2023 Active

DL/T 2688-2023 DL/T 2688-2023 Acceptance specifications for DC power supply system in electric power industry

This document stipulates the general requirements, acceptance process, acceptance items, and acceptance requirements for the acceptance of DC power supply systems for electric power use. This document is applicable to the acceptance of DC power supply systems in new power plants, substations, and converter stations. The acceptance of DC power supply systems in modification and expansion projects and other electric power projects can be implemented with reference to this document.

Publish Date: 2023-12-28

DL/T 2685-2023 Active

DL/T 2685-2023 DL/T 2685-2023 Determination of Epoxy Resin in Transformer Oil by Infrared Spectroscopy

This document specifies the method and steps for determining the content of epoxy resin in transformer oil by infrared spectroscopy. This document is applicable to the determination of the content of epoxy resin in transformer oil.

Publish Date: 2023-12-28

DL/T 2684-2023 Active

DL/T 2684-2023 The Analysis Guidelines for Dissolved Gases in Oil of On-load Tap-changer for Transformer (DL/T 2684-2023)

This document specifies the basic principles and methods for analyzing and judging the dissolved gas in the oil of on-load tap-changers of power transformers. This document is applicable to the assessment and judgment of hidden defects and failures of on-load tap-changers of oil-immersed power transformers.

Publish Date: 2023-12-28

DL/T 2683-2023 Active

DL/T 2683-2023 The determination of moisture content in gear oil for power supply (DL/T 2683-2023)

This document specifies the method outline, measurement steps, precision, and reporting for determining the moisture content in gear oil using a combination of a Karl Fischer heating furnace and a Karl Fischer coulometric water analyzer. This document is applicable to the determination of moisture content in gear oil.

Publish Date: 2023-12-28

DL/T 2682-2023 Active

DL/T 2682-2023

This document specifies the basic structure, usage conditions, basic functions, technical requirements for complete sets of devices and main components, and testing requirements of the neutral point hybrid compensation grounding devices. This document is applicable to the grounding devices for passive and active hybrid compensation of the neutral point in systems with voltages of 66 kV and below. Independent active compensation devices shall be implemented in accordance with this document. For voltages of 20 kV and above, there are no standard values for residual voltage, residual current at the fault point, or the rated output voltage and rated capacity of active compensators. These can be implemented as a reference.

Publish Date: 2023-12-28

DL/T 2555.7-2023 Active

DL/T 2555.7-2023 DL/T 2555.7-2023, Parallel route work tools and equipment for distribution lines - Part 7: Assist tools

This document specifies the technical requirements, test methods, inspection rules, marking, packaging, and storage for auxiliary tools used in bypass operations on 10kV distribution lines. This document is applicable to the design, manufacture, and inspection of auxiliary tools such as overhead laying tools and ground laying tools used in bypass operations on 10kV distribution lines.

Publish Date: 2023-12-28

DL/T 2555.6-2023 Active

DL/T 2555.6-2023 DL/T 2555.6-2023 Distribution line bypass operation tools and equipment Part 6: Mobile switch vehicles

This document specifies the structure and components of mobile switch cars used for bypass operations on power distribution lines, the technical requirements for vehicles and on-board equipment, describes the test methods and inspection rules for vehicles and on-board equipment, and stipulates the contents of marking, use, storage, and maintenance. This document is applicable to the design, manufacture, testing, and use of mobile switch cars used in bypass operations on power distribution lines in areas with an altitude of no more than 1,000 meters.

Publish Date: 2023-12-28

DL/T 2555.5-2023 Active

DL/T 2555.5-2023 DL/T 2555.5-2023 Power Distribution Line Bypass Work Tools and Equipment Part 5: Mobile Loop Box Vehicles

This document specifies the structure and components of mobile ring network box vehicles used for bypass operations on distribution lines, their operating conditions and technical requirements, test methods, inspection rules, marking and usage, storage and maintenance requirements, etc. This document is applicable to the design, manufacture, inspection, and use of mobile ring network box vehicles used in bypass operations on 10 (20) kV voltage distribution lines in areas with an altitude of no more than 1000m.

Publish Date: 2023-12-28

DL/T 2555.4-2023 Active

DL/T 2555.4-2023 DL/T 2555.4-2023 Distribution line bypass operation equipment and equipment Part 4: Mobile box trailer

This document specifies the structural composition and functions, technical requirements, test methods, inspection rules, as well as marking, identification, document provision, and usage, storage, and maintenance requirements of mobile box transformer vehicles used for bypass operations on distribution lines. This document is applicable to the design, production, testing, and usage and maintenance of mobile box transformer vehicles used for bypass operations on 10kV distribution lines in areas with an altitude of 1000m or lower.

Publish Date: 2023-12-28