Skip to main content
Back

IEC 60156:2025

Insulating liquids - Determination of the breakdown voltage at power frequency - Test method

General information

Valid from 31.01.2025
Directives or regulations
None

Standard history

Status
Date
Type
Name
31.01.2025
Main
17.08.2018
Main
IEC 60156:2025 specifies the method for determining the dielectric breakdown voltage of insulating liquids at power frequency. The test procedure is performed in a specified apparatus, where the oil sample is subjected to an increasing AC electrical field until breakdown occurs. The method applies to all types of insulating liquids of nominal viscosity up to 350 mm2/s at 40 °C. It is appropriate both for acceptance testing on unused liquids at the time of their delivery and for establishing the condition of samples taken in monitoring and maintenance of equipment.

Required fields are indicated with *

*
*
*
PDF
153.40 € incl tax
PDF redline
214.76 € incl tax
Paper
153.40 € incl tax
Standard monitoring