Standards

DL/T 1491-2024 Active

DL/T 1491-2024 Intelligent Electricity Meter Information Exchange Security Certification Technical Specification

This document specifies the basic requirements for the information exchange certification of smart electric energy meters (hereinafter referred to as "electric energy meters"), the file structure of the security module and CPU card, the security certification requirements, and the security certification testing. This document is applicable to the design, manufacture, procurement, acceptance, and use of installed electric energy meters.

Publish Date: 2024-12-25

DL/T 1490-2024 Active

DL/T 1490-2024 DL/T 1490-2024 Intelligent Electric Energy Meter Function Specification

This document specifies the functional requirements of smart electric energy meters, including energy measurement, demand measurement, clock, tariffs and time periods, communication, measurement, and detection. This document applies to the design, manufacture, procurement, acceptance, and use of installed smart electric energy meters (hereinafter referred to as "electric energy meters"), including single-phase smart electric energy meters and three-phase smart electric energy meters.

Publish Date: 2024-12-25

DL/T 1489-2024 Active

DL/T 1489-2024 Three-phase intelligent electric energy meter type specification

This document specifies the technical requirements, environmental conditions, structure and dimensions, display requirements, materials and processes for three-phase smart electric energy meters. This document is applicable to the design, manufacture, procurement, acceptance, and use of installed AC three-phase smart electric energy meters (hereinafter referred to as "electric energy meters") for measuring electric energy in power grids with a nominal frequency of 50Hz (or 60Hz).

Publish Date: 2024-12-25

DL/T 1488-2024 Active

DL/T 1488-2024 DL/T 1488-2024 Single-phase Smart Electric Energy Meter Specification for Type Test

This document specifies the technical requirements, environmental conditions, basic requirements, display, materials, and processing for single-phase smart energy meters. This document is applicable to the design, manufacture, procurement, acceptance, and use of installed AC single-phase smart energy meters (hereinafter referred to as "energy meters") for measuring electrical energy in power grids with a nominal frequency of 50 Hz (or 60 Hz).

Publish Date: 2024-12-25

DL/T 1487-2024 Active

DL/T 1487-2024 Single-phase smart electric meter technical specification

This document specifies the technical requirements, test methods, and inspection rules for single-phase smart electric energy meters. This document is applicable to the design, manufacture, procurement, acceptance, and use of installed AC single-phase smart electric energy meters (hereinafter referred to as "electric energy meters") for measuring electric energy in power grids with a nominal frequency of 50Hz (or 60Hz).

Publish Date: 2024-12-25

DL/T 1485-2024 Active

DL/T 1485-2024 Three-phase intelligent power metering technology specification

This document specifies the technical requirements, test methods, inspection rules, marking, labeling, accompanying documents, packaging, transportation, and storage for three-phase smart energy meters. This document is applicable to the design, manufacture, procurement, acceptance, and use of installed three-phase smart energy meters that measure AC energy with a reference frequency of 50Hz (or 60Hz) in the power industry.

Publish Date: 2024-12-25

DL/T 1424-2024 Active

DL/T 1424-2024 Power grid metal technical supervision regulations

This document stipulates the content and requirements of metal technical supervision for the power grid. This document is applicable to the metal technical supervision of power grid transmission, substation, and distribution equipment and components.

Publish Date: 2024-12-25

DL/T 1331-2024 Active

DL/T 1331-2024 Testing guidelines for AC substation equipment without removing high-voltage leads

This document specifies the general requirements, safety measures, test methods, and result analysis for conducting tests on AC power equipment without disassembling their high-voltage leads. This document applies to the testing of AC power equipment such as 110kV (66kV) and above power transformers, disconnecting switches, circuit breakers, oil-immersed current transformers, coupling capacitors, voltage transformers, parallel reactors, metal oxide surge arresters, and parallel capacitors without disassembling their high-voltage leads. Equipment below 110kV can be used as a reference for this testing process.

Publish Date: 2024-12-25

DL/T 1275-2024 Active

DL/T 1275-2024 1000kV Transformer Partial Discharge Field Measurement Technical Guidelines

This document specifies the test conditions, test equipment, test wiring, test procedures, pass/fail criteria, interference source identification and suppression requirements for on-site measurement of partial discharge in 1000 kV transformers. This document is applicable to long-term induced voltage and partial discharge measurement on-site tests of 1000 kV AC single-phase oil-immersed autotransformers, including main transformers and voltage compensation transformers (hereinafter referred to as "1000 kV transformers").

Publish Date: 2024-12-25

DL/T 1258-2024 Active

DL/T 1258-2024 The General Technical Requirements for Transformer Calibration Instruments - DL/T 1258-2024

This document specifies the technical requirements, test methods, inspection rules, markings, labels, and accompanying documents, as well as packaging, transportation, and storage requirements for transformer calibrators. This document is applicable to the production, testing, and use of transformer calibrators that employ the differential comparison method to measure the errors of transformers or voltage dividers operating at an AC frequency of 50Hz (or 60Hz). This document is not applicable to DC transformer calibrators and electronic transformer calibrators.

Publish Date: 2024-12-25

DL/T 1196-2024 Active

DL/T 1196-2024 Transmission device load box generic technical requirements for current transformer DL/T 1196-2024

This document specifies the technical requirements, test methods, inspection rules, marking and accompanying documents, as well as packaging, transportation, and storage requirements for transformer load boxes. This document is applicable to the production and inspection of current and voltage transformer load boxes with a rated frequency of 50 Hz.

Publish Date: 2024-12-25

DL/T 1181-2024 Active

DL/T 1181-2024 1000kV AC Bar-type Composite Insulator Technical Specification

This document specifies the technical requirements, test methods, inspection rules, marking and packaging for 1000kV AC rod-type suspension composite insulators (hereinafter referred to as composite insulators), as well as the performance requirements for umbrella sleeve materials and core rod materials. This document is applicable to 1000kV AC overhead lines and substations used for suspension and tension composite insulators. The ambient temperature of the installation site of the composite insulators is generally between -40℃ and 40℃. This document does not include requirements for selecting composite insulators according to specific operating conditions.

Publish Date: 2024-12-25