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This specification establishes the manufacture, property requirements, and testing of several grades of laminated thermosetting materials consisting of two or more plies or layers of reinforcing material such as cellulose paper, cotton fabric, glass fabric, and synthetic fiber fabrics, bonded by a thermosetting synthetic resin. These materials are available in the form of sheets, rolled and molded tubes, and molded rods.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers laminated thermosetting materials consisting of two or more plies or layers of reinforcing material bonded by a thermosetting synthetic resin. Examples of such reinforcement are cellulose paper, cotton fabric, glass fabric, and synthetic fiber fabrics. These materials are available in the form of sheets, rolled and molded tubes, and molded rods.
1.2 The values stated in inch-pound units are to be regarded as the standard.
Note 1: This specification resembles IEC 60893-3 in title only. The content is significantly different.
1.3 The following safety hazards caveat pertains only to the test methods described in this specification. 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.
1.4 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D229 Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D348 Test Methods for Rigid Tubes Used for Electrical Insulation
D349 Test Methods for Laminated Round Rods Used for Electrical Insulation
D495 Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation
D621 Test Methods for Deformation of Plastics Under Load
D668 Test Methods of Measuring Dimensions of Rigid Rods and Tubes Used for Electrical Insulation
D883 Terminology Relating to Plastics
D1180 Method of Test for Warpage of Sheet Plastics
D1711 Terminology Relating to Electrical Insulation
D2303 Test Methods for Liquid-Contaminant, Inclined-Plane Tracking and Erosion of Insulating Materials
D2304 Test Method for Thermal Endurance of Rigid Electrical Insulating Materials
D3636 Practice for Sampling and Judging Quality of Solid Electrical Insulating Materials
D6054 Practice for Conditioning Electrical Insulating Materials for Testing
IEEE Standards1 General Principles for Temperature Limits in the Rating of Electric Equipment 101 Guide for the Statistical Analysis of Thermal Life Test Data 98 99 Guide for the Preparation of Test Procedures for the Thermal Evaluation of Insulation Systems for Electric Equipment
Military SpecificationsMIL-I-24768 Insulation, Plastics, Laminated, Thermosetting, General Specifications for
IEC StandardPublication 60893-3 Specification for Industrial Laminated Sheets Based on Thermosetting Resins for Electrical Purposes Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
ICS Number Code 83.140.20 (Laminated sheets)
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ASTM D709-17, Standard Specification for Laminated Thermosetting Materials, ASTM International, West Conshohocken, PA, 2017, www.astm.orgBack to Top