With the rapid development of urban construction, there are more and more high-rise buildings, and the impact of lightning disasters on high-rise buildings is becoming more and more prominent. Therefore, it is of great significance to ensure the safety of buildings for the key points of lightning protection detection of high-rise buildings. This article will discuss the importance of lightning protection detection, detection content, detection cycle and detection method.
First, the importance of lightning protection detection.
Lightning is a common natural disaster that poses a great threat to buildings and people's safety. High-rise buildings are more susceptible to lightning due to their higher height. Therefore, it is of great significance to carry out lightning protection detection on high-rise buildings to ensure the effectiveness of their lightning protection facilities to ensure the safety of buildings and people.
Second, the content of the test.
The lightning protection detection of high-rise buildings mainly includes the following aspects:
1.Flash receiver detection: check the specifications, materials, installation location, and connection methods of the docking flash (lightning rod, lightning belt, lightning net, etc.) to ensure that it meets the requirements of the specification and has no rust or fracture.
2.Down conductor detection: Check the material, cross-section, laying method, connection method, etc. of the down conductor to ensure that it meets the requirements of the specification and has no rust and fracture.
3.Ground Resistance Detection: Measure the size of the ground resistance to ensure that it meets the requirements of the specification.
4.Equipotential bonding detection: Check the specifications and connection methods of the equipotential bonding materials to ensure that they meet the requirements of the specification.
5.Surge protector detection: check the specifications, installation location, connection method, etc. of the surge protector to ensure that it meets the requirements of the specification and has no damage or aging.
3. Testing cycle.
The lightning protection detection cycle of high-rise buildings should be determined according to the specific situation, and it is generally recommended to conduct a comprehensive inspection once a year. Under special circumstances, such as buildings in disrepair, lightning strikes, major repairs, etc., inspections should be carried out in a timely manner.
Fourth, the detection method.
The lightning protection detection methods of high-rise buildings mainly include two methods: appearance inspection and instrument measurement. Visual inspection mainly inspects the appearance and installation of lightning protection facilities through visual and manual inspection. Instrument measurement mainly uses grounding resistance tester, equipotential tester and other instruments to measure the technical parameters of lightning protection facilities.