T/CES 082-2021 Insulation test methods - Part 2: Electrical test methods

Scope

Scope: This document specifies the general electrical testing methods for insulators. This document is applicable to pure porcelain bushings, pillar insulators, insulating sleeves for electrical products, and line insulators; Main technical content: In order to improve the applicability of the standard, according to the classification of insulator products in testing practice, the series of group standards for "Insulator Testing Methods" are divided into three parts: — Part 1: General testing methods; — Part 2: Electrical testing methods; — Part 3: Mechanical testing methods. Among them, Part 1 specifies the sample installation and testing methods for general insulators, including bushings, pillar insulators, insulating sleeves for electrical products, line insulator strings and their components, etc. The appearance and size inspection of insulators, the inspection of shape and position deviations, porosity test, temperature cycle test, thermal shock test, locking pin operation test, zinc coating inspection, hardness test procedures and result determination; Part 2 specifies the general electrical testing methods for insulators, including pure porcelain bushings, pillar insulators, insulating sleeves for electrical products, line insulators. It stipulates the general conditions for electrical testing, the arrangement and installation of samples and specimens, and specifies the test procedures for impulse voltage test, power frequency voltage test, DC voltage test, radio interference voltage test, visible corona voltage test, artificial pollution test, breakdown voltage test, power frequency arc test, and individual electrical test; Part 3 specifies the sample installation and testing methods for mechanical testing of insulators, including bushings, pillar insulators, insulating sleeves for electrical products, line insulator strings and their components. It specifies the test specimens and installation of bending load test, tensile load test, torsion load test, comp

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