サージ保護装置(SPD)とは
A surge protection device (SPD) is an electrical safety component that protects equipment and electrical systems from voltage spikes caused by lightning, power grid switching, or electrical faults. SPDs automatically divert excess electrical energy to ground, preventing damage to sensitive electronics, appliances, and electrical infrastructure. Understanding SPD technology, proper selection criteria, and installation requirements is critical for protecting your electrical investments, ensuring code compliance, and maintaining electrical safety in residential, commercial, and industrial applications. What is a Surge Protection Device: Technical Definition Figure 1: Internal anatomy of a VIOX Surge Protection Device, highlighting critical safety components including the MOV stack and thermal disconnect system. A surge protection device (SPD), also […]









