ASTM-D3394 2022

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D3394-16(2022) Standard Test Methods for Sampling and Testing Electrical Insulating Board

Published By	Publication Date	Number of Pages
ASTM	2022	10

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Categories: 29.035.01 - Insulating materials in general, ASTM

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Description

ASTM D3394-16-Reapproved2022

Active Standard: Standard Test Methods for Sampling and Testing Electrical Insulating Board

ASTM D3394

Scope

1.1 These test methods cover the sampling and testing of electrical insulating boards. These boards are porous, usually fibrous sheets used for dielectric and structural purposes in electrical apparatus.

1.2 These test methods are not intended for testing vulcanized fibre or molded laminated sheets.

1.3 These test methods are applicable to board materials having a nominal thickness of at least 0.030 in. (0.76 mm).

Note 1: For materials thinner than 0.030 in. (0.76 mm) see Test Methods D202.

1.4 The test methods appear in the following sections:

1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.6 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 consult and establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7 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.

Keywords

aqueous extract characteristics pH; ash content; compressibility; conditioning; conductivity; degree of polymerization; dielectric strength; dimensions; electrical insulating board density; impulse dielectric strength; moisture content; oil absorption; shrinkage; tensile properties ;

ICS Code

ICS Number Code 29.035.01 (Insulating materials in general)

DOI: 10.1520/D3394-16R22

Additional information

Aqueous Extract Characteristics	36 – 42
Dielectric Strength in Oil	60 – 65
Ash Content	43 – 46
Moisture Content	31 – 35
Sampling	6 – 9
Conditioning	11
Dimensions of Sheets	12 – 17
Dielectric Strength in Air	53 – 59
Oil Absorption	72 – 78
Degree of Polymerization	86 – 89
Tensile Properties	66 – 71
Shrinkage	24 – 30
Compatibility with Dielectric Liquids	47 – 52
Reports	10
Apparent Density	18 – 23
Compressibility	79 – 85
	Sections
ICS Codes	29.035.01 - Insulating materials in general