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ASTM D229-09
Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation
STANDARD published on 15.1.2009
The information about the standard:
Designation standards: ASTM D229-09
Note: WITHDRAWN
Publication date standards: 15.1.2009
SKU: NS-19934
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D229-09 :
Keywords:
ac breakdown voltage, arc resistance, ash content, bond strength, compressive strength, dissipation factor, elastic modulus, flame resistance, flexural strength, hard rubber, impact resistance, insulation resistance, permittivity, printed wiring boards, resistivity, rigid plates, rigid sheets, Rockwell hardness, solvent extractible, spacers, surface resistance, surface resistivity, tensile strength, terminal boards, thermal expansion, thermosetting laminate, thickness, tracking resistance
Additional information
| Significance and Use | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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This test method provides useful engineering information for evaluating the mechanical behavior of rigid electrical insulation at elevated temperature. When the proper exposure and test temperatures are chosen, depending on the material and end-use operating temperature, the test method may be used as one means of indicating relative thermal degradation of rigid insulating materials. |
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| 1. Scope | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1.1 These test methods cover procedures for testing rigid electrical insulation normally manufactured in flat sheet or plate form. They are generally used as terminal boards, spacers, voltage barriers, and circuit boards. Note 1—For tests applying to vulcanized fibre reference should be made to Test Methods D 619. Note 2—This standard resembles IEC 60893-2, Specification for Rigid Industrial Laminated Sheets Based On Thermosetting Resins for Electrical Purpose, Methods of Tests. 1.2 The test methods appear in the following sections:
1.3 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. 1.4 This is a fire-test-response standard. See Sections 61 through 75, which are the procedures for burning rate and flame resistance. 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 31.1 and 1.6. 1.6 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 17.1 This test method covers the determination of flexural properties at elevated temperature, and as a function of time of exposure to elevated temperature. |
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| 2. Referenced Documents | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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