Jinan HYKL Lightning Protection Technology Co., Ltd. founded in 2012 with a registered capital of 20 million. We are a high-tech enterprise specializing in R&D, pro-duction, sales, installation, technical guidance ...
The Surge Protection Device (SPD) is a component of the electrical installation protection system. SPD connected in parallel has a high impedance. Once the transient overvoltage appears in the system, the impedance of the device decreases so surge current is driven through the SPD, bypassing the sensitive equipment.