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National standard for insulation resistance testing
The insulation resistance testing requirements for different equipment and materials ensure the safety and reliability of electrical equipment. In practical operation, appropriate standards should be selected for testing based on the specific equipment type and purpose.
National standard for insulation resistance testing
The national standards for insulation resistance testing mainly include the following:
GB/T 755-2000 "Insulation Resistance of Rotating Electrical Machines":
The insulation resistance value should not be less than 1M Ω.
GB/T 3048.2-2001 "Methods for measuring insulation resistance of wires and cables - Part 2: Plastic insulated cables":
The insulation resistance value should not be less than 100M Ω.
GB/T 1094.1-2013 "Power Transformers Part 1: General Principles":
The insulation resistance value should not be less than 10M Ω.
GB/T 311.1-2012 "Insulation coordination of high-voltage transmission and transformation equipment - Part 1: Definitions, principles and rules":
The insulation resistance value should not be less than 1000M Ω.
GB/T 24343-2009 Industrial Machinery Electrical Equipment Specification for Insulation Resistance Test:
It specifies the requirements for testing equipment, testing methods, testing scope, and testing records for insulation resistance testing of industrial machinery, electrical equipment, and systems.
GB/T 2423.1-2008 "Environmental testing for electrical and electronic products - Part 2: Test methods - Test A: Low temperature":
Although mainly suitable for testing in low-temperature environments, it also involves measuring insulation resistance.
GB/T 5582-2005 "Insulation Resistance Meter (Megohmmeter)":
It specifies the performance, usage conditions, testing methods, etc. of the insulation resistance meter.
GBT 16935.1-1997 "Test Method for Insulation Resistance and Adhesion of Electrical Steel Strip (Sheet) Coating":
Mainly suitable for testing the coating insulation resistance and adhesion of electrical steel strips (sheets).
These standards cover insulation resistance testing requirements for different equipment and materials, ensuring the safety and reliability of electrical equipment. In practical operation, appropriate standards should be selected for testing based on the specific equipment type and purpose.
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