Why are we going to lightning protection with three class(一)
Why are we going to lightning protection with three class(一)
The purpose of the first stage of lightning protection: to prevent direct conduction Ray enters LPZ 1 zone , will limit pay thousands to hundreds of thousands of volts surge to 2500-3000
The purpose of the second stage of lightning protection : to restrict further through the first stage residual lightning surge to 1500-2000 volts, for LPZ1 - potential LPZ 2 implementing peer connections .
The purpose of the third stage of lightning protection: the ultimate means of protection equipment , will reduce the value of the residual surge voltage to less than 1000 volts , so that the surge of energy will not damage the equipment.
Do we have to go to lightning protection with three class: Not necessarily, should be based on the protected equipment pressure rating, if the SPDs can be done to limit the voltage lower than the voltage level of the equipment , you only need two levels of protection. If a low pressure level of the equipment , you may need four or more levels of protection.
For more information on surge protective device , please pay attention to our official website:www.fatech-surge-protection.com.
FATECH ELECTRONIC LTD.
NOV.28,2014
NOV.28,2014
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