IEC 60270:2025 pdf download,High-voltage test techniques – Charge-based measurement of partial discharges.
IEC 60270:2025 applies to the measurement of partial discharges based on electrical charge, occurring in electrical apparatus, components, or systems under test with alternating voltages (AC) up to 500 Hz or with direct voltage (DC).
This document:
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Defines the relevant terminology.
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Specifies the quantities to be measured.
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Describes applicable measurement frequencies, along with the test and measuring circuits that may be employed.
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Defines both analogue and digital measuring methods for common applications.
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Specifies calibration methods and the requirements for calibration instruments.
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Provides guidance on test procedures.
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Offers assistance in distinguishing partial discharges from external interference.