Self-contained Isolation System using Surge-mitigation Components against Lightning Surge and EM Wave for ICT and IoT Equipment

摘要

With conventional communications equipment, the purpose of lightning protection is protection against overvoltage and overcurrent that cause insulation breakdown in hardware. However, in recent information and communication technology and Internet-of-things equipment, not only the above measures but also countermeasures against data errors that cause CPU stack, device freeze and large-scale system downtime triggered by malfunction are required. We propose a self-contained isolation system using surge-mitigation components with high-voltage insulation for overvoltage and data-error protection. It provides adequate protection against overvoltage and conduction common mode noise from metallic service lines of power, communication, and grounding and radiation noise due to lightning electromagnetic pulse.