GB/T 44663-2024 Active National standards

GB/T 44663-2024 Insulating liquids—Unused modified or blended esters for electrotechnical applications

GB/T 44663-2024 Insulating liquids—Unused modified or blended esters for electrotechnical applications

Publish Date: 2024-09-29 Implement Date: 2025-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us
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Basic Information

Standard Code: GB/T 44663-2024
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: Electrician's insulating materials and their products
ICS Name: Insulating oil
Publish Date: 2024-09-29
Implement Date: 2025-04-01
Pages: 24 pages

Scope

This document specifies the classification, performance requirements, and test methods for unused modified ester insulating fluids or unused mixed ester insulating fluids used in electrical applications, as well as their labeling and delivery requirements. This document applies to unused modified ester insulating fluids or mixed ester insulating fluids used as insulating and cooling media in transformers and other electrical equipment. It does not apply to modified ester insulating fluids or mixed ester insulating fluids that contain used insulating fluids in any proportion. unused modified or synthetic esters derived from natural or synthetic base oils, or a mixture of both. This document covers other ester insulating fluids not covered by the standards for natural ester insulating fluids (NB/T 10199) or synthetic ester insulating fluids (GB/T 41632). Since this document involves various types of ester insulating fluids, some performance indicators have a wide range of values. Viscosity is an important performance parameter that affects the design and cooling performance of electrical equipment. Therefore, this document classifies ester insulating fluids based on their kinematic viscosity.

Development Information

Word Count: 34 Thousand words Pages: 24 pages

Referenced Standards

GB/T 261-1983 Petroleum products—Determination of flash point—Closed cup method GB/T 261-2008 Determination of flash point—Pensky-Martens closed cup method GB/T 261-2021 Determination of flash point—Pensky-Martens closed cup method GB/T 507-2002 Insulating liquids—Determination of the breakdown voltage at power frequency GB/T 1884-2000 Crude petroleum and liquid petroleum products—Laboratory determination of density—Hydrometer method GB/T 3535-1983 Petroleum oils—Determination of pour point GB/T 3535-2006 Petroleum products—Determination of pour point GB/T 3535-2025 Determination of pour point for petroleum products GB/T 3536-1983 Petroleum products—Determination of flash and fire points—Cleveland open cup method GB/T 3536-2008 Petroleum products—Determination of flash and fire points—Cleveland open cup method GB/T 5654-1985 Measurement of relative permittivity, dielectric dissipation factor at power frequency and volume resistivity of insulating liquids GB/T 5654-2007 Insulating liquids—Measurement of relative permittivity,dielectric dissipation factor and d.c.resistivity GB/T 6541-1986 Petroleum products—Mineral oils—Determination of interfacial tension of oil against water—Ring method GB/T 10065-2007 Gassing of insulating liquids under electrical stress and ionization GB/T 17648-1998 Insulating liquids—Determination of the partial discharge Inception voltage (PDIV)—Test procedure GB/T 21216-2007 Insulating liquids—Determination of the dielectric dissipation factor by measurement of the conductance and capacitance—Test method GB/T 21222-2007 Methods for the determination of the lightning impulse breakdown voltage of insulating liquids GB/T 21801-2008 Chemicals—Ready biodegradability—Manometric respirometry test GB/T 21802-2008 Chemicals—Ready biodegradability—Modified MITI test (Ⅰ) GB/T 21856-2008 Chemicals—Ready biodegradability—CO2 evolution test GB/T 23770-2009 Liquid inorganic chemical products—General method for the measurement of colour GB/T 25961-2010 Standard test method for corrosive sulfur in electrical insulating oils GB/T 30515-2014 Petroleum products—Transparent and opaque liquids—Determination of kinematic viscosity and calculation of dynamic viscosity GB/T 32508-2016 Quantitative determination of corrosive sulfur(dibenzyl disulfide,DBDS) in insulating liquids GB/T 41632-2022 Insulating liquids—Specifications for unused synthetic organic esters for electrical purposes GB/T 41633.3-2022 Insulating liquids—Determination of acidity—Part 3:Test methods for non-mineral insulating oils DL/T 285-2012 Mineral insulating oil corrosiveness sulfur detection method: coating insulated paper copper strip method DL/T 385-2010 Transformer Oil Electrostatic Susceptibility Detection Method DL/T 429.1-2017 Electricity Oil Transparency Test Method DL 429.1-1991 Power system oil quality test method: Transparency determination method DL/T 429.2-2016 Electricity Oil Color Determination Method DL 429.2-1991 Power system oil quality test method: Color determination method DL/T 1204-2013 The method for determining the thermal expansion coefficient of mineral insulating oil DL/T 2445 NB/SH/T 0189 NB/SH/T 0632-2014 The determination of specific heat capacity by differential scanning calorimetry B/SH/T 0811 NB/SH/T 0870-2013 Determination of dynamic viscosity and density of petroleum products and calculation of dynamic viscosity using Stableberg viscosity meter method NB/SH/T 0886-2014 Determination of the pour point of petroleum products using automatic tilting method NB/SH/T 0930 NB/T 10199-2019 Electrician Fluid, Unused Natural Esters for Transformers and Similar Electrical Equipment NB/T 42140-2017 NB/T 42140-2017 Insulation liquid: Automatic Karl Fischer titration method for determination of moisture in oil-immersed paper and paperboard SH/T 0604-2000 Crude petroleum and petroleum products--Determination of density--Oscillationg U-tube method SH/T 0803-2007 Determination of Polychlorinated Biphenyls in Insulating Oil by Capillary Gas Chromatography IEC 60666 IEC 62961 IEC TR 63025 ASTM D3300 ASTM D7896 DIN 51350-1 DIN 51350-2 DIN 51350-3 EN 14210 US.EPA835.3110

Adopt standards

IEC 63012:2019

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