ASTM D709-00 - 10.9.2001
 
1. Scope

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.

 
2. Referenced Documents

101

Guide for the Statistical Analysis of Thermal Life Test Data

D6054-97

Standard Practice for Conditioning Electrical Insulating Materials for Testing

1

General Principles for Temperature Limits in the Rating of Electric Equipment

LI?5-1969

LI?3-1961

MIL-P-997

Plastic Material, Laminated, Thermosetting, Electric Insulation, Sheets, Glass Cloth, Silicone Resin

MIL-P-15035

D883-26a

Standard Terminology Relating to Plastics (Includes all amendments and changes 6/15/2026).

D1180-57(1978)

Method of Test for Bursting Strength of Round Rigid Plastic Tubing (Withdrawn 1989)

D1711-26

Standard Terminology Relating to Electrical Insulation

D2303-20e1

Standard Test Methods for Liquid-Contaminant, Inclined-Plane Tracking and Erosion of Insulating Materials (Includes all amendments and changes 5/5/2021).

D2304-23

Standard Test Method for Thermal Endurance of Rigid Electrical Insulating Materials

D3636-24

Standard Practice for Sampling and Judging Quality of Solid Electrical Insulating Materials

D348-13

Standard Test Methods for Rigid Tubes Used for Electrical Insulation (Withdrawn 2020)

D349-13

Standard Test Methods for Laminated Round Rods Used for Electrical Insulation (Withdrawn 2020)

D495-22

Standard Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation

D621-64(1988)

Test Methods for Deformation of Plastics Under Load (Withdrawn 1994)

D668-12

Standard Test Methods of Measuring Dimensions of Rigid Rods and Tubes Used for Electrical Insulation (Withdrawn 2020)

D257-14(2021)e1

Standard Test Methods for DC Resistance or Conductance of Insulating Materials (Includes all amendments and changes 5/6/2021).

D229-19e1

Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation (Includes all amendments and changes 3/23/2023).

98

MIL-P-15037

MIL-P-15047

Plastic Material, Laminated Thermosetting Sheets, Nylon Fabric Base, Phenolic-Resin

MIL-P-18177

Plastic Sheet, Laminated, Thermosetting, Glass Fibre Base, Epoxy-Resin

MIL-P-22324

Plastic Sheet, Thermosetting, Paper-Base, Epoxy-Resin

L-P-513

Plastic Sheet and Insulation Sheet, Electrical (Laminated, Thermosetting, Paper-Base, Phenolic-Resin)

Plastic Sheet, Rod and Tube, Laminated Thermosetting

Publication 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.

99

Guide for the Preparation of Test Procedures for the Thermal Evaluation of Insulation Systems for Electric Equipment