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Why do we need to conduct regular lightning protection inspections on buildings? Mar 25 , 2025
1. Required bythe standard 1）Required by the standard, the national standard is mandatory GB 50057 Design code for protection of Structures against lightning： Article 4.5.4 clearly requires that lightning protection devices should be inspected regularly, generally once a year;toflammable and explosive places, the inspection cycle needs to be shortened to once every six months. Article 6....
- ac surge protection device
- dc surge protector
- ac dc spd
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What are the components of the intelligent lightning protection system? What are the advantageas? Apr 01 , 2025
The intelligent lightning protection system introduces the concept of intelligence into the lightning protection system, integrating the three major modules of "intelligent SPD online monitoring" + "lightning warning online monitoring" + "ground resistance online monitoring". It uses modern microcomputers and communication technologies to collect monitoring and collected data, so that lightning pr...
- lightning protection system
- SPD
- lightning protection product
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What are the requirements for the installation of the connecting wires at both ends of the SPD? Apr 08 , 2025
Regardless of TN system or TT system, the connection wires at both ends of the SPD connected to the live conductor and PE line should be short and straight. The IEC standard stipulates that the total length of the SPD connection wire should not exceed 0.5m. This is because the lightning impulse current has high-frequency characteristics, and the lightning impulse overvoltage applied to the ...
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What are the main reasons for the continuous increase in the leakage current of varistor (MOV)? Apr 16 , 2025
There are three main reasons why the leakage current of the MOV in the SPD continues to increase and thermal breakdown occurs during the normal working life: 1. The frequency and amplitude of surge overvoltage at the SPD installation site are large, causing the MOV's inherent ampere-second resources to be exhausted prematurely and enter the degradation failure stage. ...
- SPD device
- SPD protector device
- SPD lightning protection
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