Product introduction of secondary power lightning arrester:

Ohm Thunder Shield（OMRDON secondary surge protector（Surge Protection Device，abbreviationSPD）(also known as power lightning arrester, power supply)Lightning arrester, surge protector, overvoltage protector)，Suitable for communication380V（50Hz/60Hz）and belowTN-S, TN-C-S, TT, IT and other power supply systems are protected by lightning electromagnetic pulse (LEMP) generated by lightning strikes, used at the junction of LPZ1 and LPZ2 in the lightning strike area，Its design basis complies withGB18802.1, IEC61643-1 technical standards.

Working principle of secondary power lightning arrester:

Surge protective device (SPD) is an indispensable device in lightning protection of electronic equipment, and its working principle isUnder normal circumstances, ElectricityThe surge protector is in an extremely high resistance state, ensuring the normal operation of the power systemworkWhen the systemOn the lineappearelectricitySurge overelectricitypressOvercurrenttime，SPDThe resistanceMutation orcontinuous declineFor low impedance, SPDImmediately conduct within nanoseconds, andelectricitySurge energyRelease through SPDenterbiglandAfter the surge，electricitySurge protector is fast againrecoverIn a high impedance state, it does not affectsystemNormal power supply.

Functional characteristics of secondary power lightning arrester:

1. Optional remote signaling terminal alarm function, convenient for remote alarm monitoring.

2. It can withstand up to 40KA (8/20 μ s) lightning current surge.

3Fast response speed, action response time less than25ns。

4. Flame retardant shell design,Can be easily installed inOn a 35mm electrical guide rail.

5. The built-in thermal release failure device enables the lightning arrester to automatically disconnect when it fails due to overheating or breakdown.

6The color of the visual alarm window indicates the working status of the protection, green(Normal), red (Fault).

Application and installation location of secondary power lightning arrester products:

Ohm Thunder Shield（OMRDON II series surge protectors are suitable for the junction of LPZ1 and LPZ2 in lightning strike areas，Usually installed in parallel in floor distribution boxes, computer centers, telecommunications rooms, elevator control rooms, frequency conversion equipment control rooms, hospital operating rooms, monitoring rooms, and distribution boxes in places where electronic medical equipment is installed; It can also be installed in the lighting distribution box of residential buildings below six floors, and can be used in dispersed small villasSPD is installed in the household distribution box.