The most recent significant update (Edition 3.0) introduced major shifts in how arresters are classified:
A thermal stress test that simulates temporary overvoltages and repeated discharges. This ensures the arrester can recover thermally. Iec 60099-4 Pdf Free Download
If you are working outside the US/Canada, . Some projects accept both if harmonized. The most recent significant update (Edition 3
10 kA class 3 arrester IEC 60099-4 2004 certified test report Some projects accept both if harmonized
👉 The Linda Hall Library (USA) or the British Library (UK) offers document delivery for a small handling fee.
Invest the time to obtain the correct, current version through proper channels. Your career and your power system will thank you.
When you obtain a copy of IEC 60099-4, you are not just getting a simple spec sheet; you are accessing a complex technical framework. Key elements usually include: