How Often Does The Surge Protector Of The Distribution Box Need To Be Replaced?
As an important circuit protection device, surge protector is widely used in industrial control systems, communication equipment, household appliances and other fields. How long does it take to replace the surge protector in the distribution box?
The surge protector adopts MG series technology, combining the advantages of switch type and voltage limiting type surge protector, while avoiding the shortcomings of both. The switch type may have residual current after discharge, while the voltage limiting type will produce a large leakage current when limiting the surge voltage. Therefore, during the discharge of surge current, Yizao composite surge protector has neither residual current nor leakage current. When surge overvoltage occurs, the surge current and energy are introduced into the ground wire to protect the back-end equipment. Whenever this discharge protection action occurs, the discharge unit inside the surge protector will suffer a certain degree of energy loss and aging.
Most surge protector manufacturers usually specify the maximum discharge times or maximum surge current carrying capacity of the product. Once these rated values are reached, it is recommended to replace the surge protector. But the actual situation is that some surge protectors may not encounter severe surges after many years of use, and the discharge times are small, so the service life will be relatively long. In some areas, the power supply quality is poor or the surrounding lightning activities are frequent, and the loss of surge protectors will be accelerated.
Therefore, to accurately judge the remaining service life of the surge protector, it is necessary to combine the actual use environment and operating status. The life of the surge protector does not depend on the length of time, but on the integrity of its internal discharge unit.
In summary, the replacement time of the surge protector is not a one-size-fits-all regular replacement, but should be scientifically managed according to the specific product characteristics and actual use. Especially for the first-level surge protector, due to different solutions, there are currently a large number of T1-level SPDs on the market that do not have a fault indication window. The operation and maintenance personnel cannot find out whether it is damaged or needs to be replaced, which brings potential safety risks. Therefore, we need to choose high-quality surge protector products with complete monitoring functions and fault indication windows, which can maximize the service life and ensure the reliable operation of circuit equipment.
