5.1 This test method is useful for evaluating a combination of materials for potential use in an electrical insulation system.

1.1 This test method covers procedures for evaluating the interaction of electrical insulation components used, or intended to be used, in electrical insulation systems.

1.2 This test method is useful for determining compatibility but additional testing will potentially be required for some applications.

1.3 This test method also provides useful information about the behavior of selected insulating materials when compared to a reference value as opposed to a reference system.

1.4 This test method does not cover systems which operate in liquids or gases other than air.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See also 8.2.4, 8.3.1, and 8.3.2.1.

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.