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GB/T 24846-2018Preventive test standards of 1000kV AC electrical equipments (English PDF)

1000kV交流电气设备预防性试验规程

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 13, 2018

Implementation date

February 1, 2019

Scope

GB/T 24846-2018 is the English-translated version of 1000kV交流电气设备预防性试验规程.

GB/T 24846-2018 is the Chinese standard "Preventive test standards of 1000kV AC electrical equipments". Its scope clause reads: This standard specifies the project, period, method and judgment criteria for preventive testing of 1000kV AC electrical equipment. This standard applies to 1000kV AC electrical equipment.

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Document preview — GB/T 24846-2018

National Standard of the People's Republic of China

ICS: 29.240
Classification: F 24

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 terms and definitions, symbol
4 General
5 Power Transformers and Reactors
6 transformer
7 switchgear
8 casing
9 insulator
10 insulating oil and sulfur hexafluoride gas
11 metal oxide arrester
12 fixed series capacitor compensation device
13 overhead power lines
14 Grounding device
Appendix A (Normative Appendix) Significant Difference Analysis Method
Appendix B (informative) (Affected by the environment) Analysis of the aspect ratio of the measured values
Appendix C (Normative) The rated insulation level of 1000kV AC electrical equipment
Appendix D (Normative Appendix) Site Contamination Level

1 Scope

This standard specifies the project, period, method and judgment criteria for preventive testing of 1000kV AC electrical equipment.

This standard applies to 1000kV AC electrical equipment.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 261 Determination of flash point method Binski-Martin closed flash point cup method

GB/T 264 petroleum product acid value determination method

GB/T 507 insulation oil breakdown voltage measurement method

GB/T 511 Determination of mechanical impurities in petroleum products and additives (gravimetric method)

GB/T 1094.3 Power transformers - Part 3. Insulation level, insulation test and external insulation air gap

GB 2536 Unused mineral insulating oil for electrical fluid transformers and switches

GB/T 5654 Measurement of relative permittivity, dielectric loss factor and DC resistivity of liquid insulating materials

GB/T 6541 Petroleum product oil-to-water interfacial tension method (circular method)

Determination of water-soluble acid in transformer oil during GB/T 7598 operation

Determination of moisture content of transformer oil and turbine oil in GB/T 7600 operation (Coulomb method)

GB/T 11023 high-voltage switchgear sulphur hexafluoride gas seal test method

GB/T 11142 Insulating oil gassing method under electric field and ionization

GB/T 12022 industrial sulfur hexafluoride

DL/T 345 Guidelines for the application of UV diagnostic techniques for live equipment

General technical requirements for silicone rubber insulation materials for DL/T 376 composite insulators

DL/T 423 Determination of gas content in insulating oils - Vacuum differential pressure method

DL/T 432 Method for measuring particle contamination in power oil

DL/T 506 sulphur hexafluoride electrical equipment

DL/T 626 Deteriorated Disc Suspension Insulator Inspection Procedure

DL/T 664 Infrared Diagnostic Application Specification for Live Equipment

Gas chromatographic determination of gas content in DL/T 703 insulating oil

DL/T 864 Nominal voltage higher than 1000V AC overhead line composite insulators

DL/T 916 sulfur hexafluoride gas acidity determination method

DL/T 917 sulfur hexafluoride gas density determination method

DL/T 918 Determination of hydrolyzable fluoride in sulphur hexafluoride gas

DL/T 919 Determination of mineral oil content in sulphur hexafluoride gas (infrared spectroscopy)

Gas chromatographic determination of air and carbon tetrafluoride in DL/T 920 sulfur hexafluoride gas

DL/T 1400-2015 oil immersed transformer temperature measuring device on-site calibration specification

SH/T 0804 Electrical insulating oil Corrosive sulfur test Silver sheet test method […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 39 pages — is available in the English PDF.

Referenced standards

Normative references

DL/T 376 · DL/T 664 · DL/T 864 · DL/T 1400-2015

Cited by

GB/T 24835-2018Regulation of operation and maintenance for 1100kV gas-insulated metal-enclosed switchgear

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