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ASTM D2225-20

Standard Test Methods for Silicone Liquids Used for Electrical Insulation

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NORMA vydána dne 1.11.2020

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Informace o normě:

Označení normy: ASTM D2225-20
Datum vydání normy: 1.11.2020
Kód zboží: NS-1009712
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Kategorie - podobné normy:

Izolační oleje

Anotace textu normy ASTM D2225-20 :

Keywords:

electrical insulating liquid, silicone liquid,, ICS Number Code 29.040.10 (Insulating oils)

Doplňující informace

Significance and Use

4.1 Tests covered in this standard may be used for quality control and design considerations.

4.2 Included in each test method is a brief statement describing its significance.

1. Scope

1.1 These test methods cover the testing of silicone liquids for use in transformers, capacitors, and electronic assemblies as an insulating or cooling medium, or both. These methods are generally suitable for specification acceptance (Specification D4652), factory control, referee testing, and research.

1.2 Although some of the test methods listed here apply primarily to petroleum-based fluids, they are, with minor revisions, equally applicable to silicone liquids.

1.3 Silicone liquids are used for electrical insulating purposes because of their stable properties at high and low temperatures and their relative environmental inertness.

1.4 A list of the properties and standards are as follows:

Property Measured

Section

ASTM Test Method

Physical:

Color

D2129

Flash point

D92

Fire point

D92

Polychlorinated biphenyl
content

D4059

Pour point

D97

Refractive index

D1807

Specific gravity

D1298, D1481, D4052

Volatility

D4559

Viscosity

D445

Chemical:

Acid number

D974

Water content

D1533

Electrical:

Relative permittivity

D9242

Dielectric breakdown
voltage

D8773

Dielectric breakdown
voltage

D1816

Dissipation factor

D9242

Specific resistance

D11692

Compatibility

D5282

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

D4059-00(2018)	Standard Test Method for Analysis of Polychlorinated Biphenyls in Insulating Liquids by Gas Chromatography
D4559-99	Standard Test Method for Volatile Matter in Silicone Fluid
D4652-20	Standard Specification for Silicone Liquid Used for Electrical Insulation
D5282-05(2020)	Standard Test Methods for Compatibility of Construction Material with Silicone Fluid Used for Electrical Insulation
D974-22	Standard Test Method for Acid and Base Number by Color-Indicator Titration
D1169-19a	Standard Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids (Includes all amendments and changes 10/10/2019).
D1807-00	Standard Test Methods for Refractive Index and Specific Optical Dispersion of Electrical Insulating Liquids
D877-02	Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes
D923-15(2023)	Standard Practices for Sampling Electrical Insulating Liquids
D924-23	Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
D92-18	Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D97-17b(2022)	Standard Test Method for Pour Point of Petroleum Products (Includes all amendments and changes 11/29/2022).
D445-23	Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D1533-20	Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration
D1481-17	Standard Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer (Withdrawn 2023)
D1298-12b(2017)e1	Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method (Includes all amendments and changes 3/14/2023).
D2161-20	Standard Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity
D2129-17	Standard Test Method for Color of Clear Electrical Insulating Liquids (Platinum-Cobalt Scale)
D1816-12(2019)	Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using VDE Electrodes
D2864-21a	Standard Terminology Relating to Electrical Insulating Liquids and Gases (Includes all amendments and changes 12/14/2021).
D4052-22	Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

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