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IEC 61481: Live Working — Phase Comparators

✅ Standard at a Glance IEC 61481, first published in 2001 with a Corrigendum in 2004, specifies the requirements for phase comparators used in live working on electrical systems operating at voltages up to and including 800 kV AC. Prepared…

IEC 61463-2012: Bushings — Seismic Qualification Methods

💡 Key Insight: IEC 61463-2012 provides three equally valid methods for seismic qualification of power transformer bushings rated above 52 kV: static equivalent force calculation, dynamic response spectrum analysis, and full-scale shake-table testing. The standard bridges the gap between general…