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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Annex 3. Standards for testing electrical equipment and apparatus for electrical installations of consumers

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Encyclopedia of radio electronics and electrical engineering / Rules for the technical operation of consumer electrical installations (PTE)

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K, M - are produced within the time limits established by the PPR system.

Name of the test	Type of test	Test norms	Directions
19.1. Measuring the insulation resistance of the windings relative to the fastening bolts	K, M	After overhaul - not less than 0,5 MΩ, in operation - not less than 0,1 MΩ	Produced by a megohmmeter for a voltage of 2500 V
19.2. Testing of support insulators with increased voltage of industrial frequency	К	See table. 5 (Appendix 3.1). Test duration - 1 min.	Can be performed in conjunction with the testing of busbar insulators

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