How To Choose A Suitable Lightning Arrester?
Understand the main parameters of surge protective device.
(1) Nominal voltage UN: The additional voltage of the maintenance system is consistent. In the information technology system, this parameter shows the type of maintainer to be selected and marks the effective value of the communication or DC voltage.
(2) Maximum continuous voltage UC: The maximum voltage effective value that can be applied to the specified end of the lightning arrester for a long time without changing the characteristics of the lightning arrester.
(3) Nominal discharge current In: The lightning arrester is not damaged when the standard lightning wave impacts 10 times with a waveform of 8/20μs.
(4) Maximum discharge current Imax: The maximum impact current peak that the lightning arrester can withstand when the standard lightning wave impact waveform is 8/20μs.
(5) Voltage protection level UP: The voltage protection level of the lightning arrester.
The lightning arrester UC should meet the system voltage, the through-current should meet the use requirements, and the protection level should be lower than the equipment withstand voltage.
Look at the strength of the surge protector manufacturer
When choosing surge protection device, you should choose a product with a lightning protection test report to ensure safety functions. When choosing a manufacturer, pay attention to the manufacturer's strength and try to choose a manufacturer with many years of experience in lightning protection to ensure that the lightning protection products have after-sales service.
