Standards

DL/T 2707-2023 Active

DL/T 2707-2023 DL/T 2707-2023 Guideline for Evaluation of Energy-saving Effect of Low-voltage Economizer

This document specifies the calculation and evaluation methods for the energy-saving effect of low-pressure economizers in coal-fired power generation units. This document is applicable to the evaluation of the energy-saving effect of low-pressure economizers in coal-fired power generation units with a capacity of 300MW or more. Other capacity units may refer to this document for implementation.

Publish Date: 2023-12-28

DL/T 2706-2023 Active

DL/T 2706-2023 DL/T 2706-2023 Thermo-Turbine Generator Set Performance Test Uncertainty Evaluation Procedure

This document specifies the basic requirements for the uncertainty of performance tests of steam turbine generator sets, and the calculation methods for measurement uncertainty and result uncertainty. This document is applicable to the uncertainty assessment of performance tests of various types of steam turbine generator sets.

Publish Date: 2023-12-28

DL/T 2705-2023 Active

DL/T 2705-2023 "DL/T 2705-2023 Procedures for Acceptance Testing of Air Turbine Thermal Performance"

This document specifies the content, technical requirements, and testing methods for the performance acceptance test of air turbines. This document is applicable to the performance acceptance test of air turbine generator sets.

Publish Date: 2023-12-28

DL/T 2686-2023 Active

DL/T 2686-2023 Coal mechanical sampling process for water loss test and calibration method of samples

This document specifies the terms and definitions, method overview, testing instruments and equipment, coal samples and sample preparation process, water loss test steps, correction methods, and test reports for the water loss test of coal samples during mechanical sampling and preparation. This document is applicable to the quality assessment and quality management of coal mechanical sampling equipment. However, if the full moisture coal samples are not taken using mechanical sampling equipment, the water loss correction cannot be performed.

Publish Date: 2023-12-28

DL/T 2704-2023 Active

DL/T 2704-2023 "DL/T 2704-2023 Procedure for acceptance test of thermal performance of inclined layer storage heat tank"

This document specifies the procedures and methods for the acceptance test of the thermal performance of inclined temperature layer heat storage tanks using water as the heat storage medium. This document is applicable to the acceptance test of the thermal performance of inclined temperature layer heat storage tanks.

Publish Date: 2023-12-28

DL/T 2703.1-2023 Active

DL/T 2703.1-2023 DL/T 2703.1-2023 Thermal Power Plant Regenerative Device Technical Specification Part 1: Hot Water Storage Tank

This document specifies the technical requirements for the installation of hot water storage tanks in thermal power plants, mainly including the models and parameters of the hot water storage tanks, the structure of the tank body, pressure regulation and safety protection, thermal measurement and interlocking control, insulation and anti-corrosion, prefabrication and installation, and testing. This document applies to cylindrical steel atmospheric pressure hot water storage tanks based on the principle of oblique temperature layers. Cylindrical steel cold storage tanks can be referenced for implementation. This document does not apply to pressurized hot water storage tanks.

Publish Date: 2023-12-28

DL/T 2698-2023 Active

DL/T 2698-2023 Active Intervention Arc Suppression Device Selection Guidelines (DL/T 2698-2023)

This document specifies the operating conditions, selection principles, technical requirements, test methods, inspection, marking, packaging, transportation, and storage requirements for active intervention arc-extinguishing devices (hereinafter referred to as the device). This document is applicable to active intervention arc-extinguishing devices in AC systems with a nominal voltage of 10 kV and a rated frequency of 50 Hz. Other voltage levels can be implemented as a reference.

Publish Date: 2023-12-28

DL/T 2697-2023 Active

DL/T 2697-2023 DL/T 2697-2023 Standard for Automatic Data Collection and Processing of UAV Inspection Data for Overhead Transmission Lines

This document specifies the requirements for automatic collection and processing of drone inspection data for overhead transmission lines, including the collection and processing of visible light image data, infrared thermal image data, laser point cloud data, visible light point cloud data, and data storage and management. This document is applicable to the collection and processing of drone inspection data for overhead transmission lines with voltages of 110 (66) kV and above. For 35 kV overhead lines, the requirements can be implemented as a reference.

Publish Date: 2023-12-28

DL/T 2696-2023 Active

DL/T 2696-2023 DL/T 2696-2023 Intelligent inspection modeling technology guidelines for overhead transmission lines

This document specifies the general requirements, data requirements, and modeling requirements for intelligent inspection of overhead transmission lines in different application scenarios. This document is applicable to the intelligent inspection modeling of overhead transmission lines with voltages of 110 (66) kV and above. Overhead transmission lines with voltages of 35 kV and below can be used for reference.

Publish Date: 2023-12-28

DL/T 2695-2023 Active

DL/T 2695-2023 DL/T 2695-2023 Guidance for intelligent evaluation of transmission line safety risk under multiple operating conditions

This document stipulates the basic requirements for the safety risk assessment of overhead transmission lines under typical working conditions, data requirements and processing, and intelligent evaluation of typical safety risks. This document is applicable to the safety distance and stress risk assessment of conductors and ground wires of overhead transmission lines with voltages of 110 (66) kV, DC ± 400 kV and above. For overhead lines with voltages of 35 kV and below, this document can be used for reference.

Publish Date: 2023-12-28

DL/T 2694-2023 Active

DL/T 2694-2023 DL/T 2694-2023 Substation inspection robot and manual inspection coordination specification for inspection

This document stipulates the principles of collaborative inspection between substation inspection robots and human operators, including robot inspection, manual inspection, collaborative inspection methods, collaborative inspection plans, abnormal situation handling, and data management. This document is applicable to substation inspection operations where inspection robots are used.

Publish Date: 2023-12-28

DL/T 2693-2023 Active

DL/T 2693-2023 DL/T 2693-2023 General Technical Specification for Small Multi-Rotor UAV System for Overhead Transmission Line Inspection

This document specifies the system composition, technical requirements, and inspection and testing requirements for small multi-rotor drone inspection systems used for overhead transmission line inspections. This document is applicable to small multi-rotor drone inspection systems that conduct visible light and infrared inspections of AC and DC overhead transmission lines. Other types of multi-rotor drone systems can be implemented with reference to this document.

Publish Date: 2023-12-28