Overview This series of lightning protection box standard execution: YD / T1235.1-2002, GB / T18802.1-2002 / IEC61643-1: 1998 This series of lightning protection box with metal casing, beautiful appearance, easy installation, wiring, core component features advanced technology, hot melt and overcurrent protection functions, mainly for power system lightning important sectors of electricity, telecommunications, banking, broadcasting, airports, chemical; to prevent the three-phase power supply system due to external (lightning, electromagnetic interference, etc.) or within the system (system pull closing effect, inductive and capacitive loads such as start and stop) pulse surge and transient overvoltage caused by the power supply system as well as damage caused by electrical equipment to ensure that all safe operation of electronic equipment. Ambient temperature range: -40 ℃ ~ 70 ℃; Relative humidity: ≤95%; atmospheric pressure: 70kPa ~ 106kPa. Works when there is lightning induced invasion wave power transmission lines, power surge protection components will be lightning speed nanosecond response was low impedance state, quickly lightning current discharge to the earth, and put too caused by lightning voltage is limited to allow the electrical equipment to withstand the pressure range, in order to ensure the safe operation of electrical equipment. This series of power surge protector features working lights, failure indicator. If long-term use deteriorated to fail, prompting the user to be replaced. Lightning module lightning protection module