ASTM D2225电绝缘用硅酮液的标准试验方法

ASTM D2225 Standard Test Methods for Silicone Fluids Used for Electrical Insulation
ASTM D2225 电绝缘用硅酮液的标准试验方法

Tests covered in this standard may be used for quality control and design considerations.
Included in each test method is a brief statement describing its significance.

1. Scope
1.1 These test methods cover the testing of silicone fluids for use in transformers, capacitors, and electronic assemblies as an insulating or cooling medium, or both. These methods are generally suitable for specification acceptance, 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 fluids.
1.3 Silicone fluids 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 6 D 2129 Flash point 7 D 92 Fire point 7 D 92 Polychlorinated biphenyl 8 D 4059 content Pour point 9 D 97 Refractive index 10 D 1807 Specific gravity 11 D 1298, D 1481, D 4052 Volatility 12 D 4559 Viscosity 13 D 445, D 2161 Chemical: Neutralization number 14 D 974 Water content 15 D 1533 Electrical: Relative permittivity 16 D 924 2 Dielectric breakdown 17 D 877 3 voltage Dissipation factor 18 D 924 2 Specific resistance 19 D 1169 2 Compatibility 20 D 5282
1.5This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately)
ASTM Standards
ASTM D92 Test Method for Flash and Fire Points by Cleveland Open Cup
ASTM D97 Test Method for Pour Point of Petroleum Products
ASTM D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)
ASTM D877 Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes
ASTM D923 Test Methods for Sampling Electrical Insulating Liquids
ASTM D924 Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
ASTM D974 Test Method for Acid and Base Number by Color-Indicator Titration
ASTM D1169 Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids
ASTM D1298 Practice for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method
ASTM D1481 Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer
ASTM D1533 Test Methods for Water in Insulating Liquids (Karl Fischer Reaction Method)
ASTM D1807 Test Methods for Refractive Index and Specific Optical Dispersion of Electrical Insulating Liquids
ASTM D1816 Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
ASTM D2129 Test Method for Color of Water White Electrical Insulating Liquids
ASTM D2161 Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity
ASTM D2864 Terminology Relating to Electrical Insulating Liquids and Gases
ASTM D4052 Test Method for Density and Relative Density of Liquids by Digital Density Meter
ASTM D4059 Test Method for Analysis of Polychlorinated Biphenyls in Insulating Liquids by Gas Chromatography
ASTM D4559 Test Method for Volatile Matter in Silicone Fluid
ASTM D4652 Specification for Silicone Fluid Used for Electrical Insulation
ASTM D5282 Test Methods for Compatibility of Construction Material with Silicone Fluid Used for Electrical Insulation
Index Terms
Electrical insulating liquids; silicone fluids, testing,; Electronic materials/applications; silicone fluids, electrical insulating, testing;

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 来源：防火网　发布时间：12/17/2013 点击次数：1289