Building lightning detection is a very important job that plays a vital role in protecting the safety of buildings, equipment, and personnel. As an organization with Class A lightning protection testing qualification, this article will introduce you to the main content of building lightning protection testing.
1.Detection of lightning protection devices
Lightning protection device is an important facility for lightning protection of buildingsIncluding flash receivers, down conductors, grounding devices, lightning rods, etc。When testing, the focus should be on the material, size, connection and anti-corrosion measures of these devices. At the same time, it is also necessary to ensure that the device is positioned reasonably to give full play to its lightning protection effect.
2.Detection of electromagnetic shielding
Electromagnetic shielding is an important means to prevent lightning electromagnetic pulse interference and infringement of electronic equipment. During the inspection, attention should be paid to the selection of shielding materials, the setting of shielding layers, and the evaluation of shielding effects. At the same time, it is also necessary to ensure that the shielding is reliably connected to the rest of the building to avoid the intrusion of lightning and electromagnetic pulses.
3.Detection of grounding devices
The grounding device is one of the most critical parts of the lightning protection system of the building, and its performance directly affects the lightning protection effect. When testing, we should pay attention to the size of the grounding resistance, the material and specifications of the grounding body, the reliability of the connection method and the anti-corrosion measures. At the same time, it is also necessary to ensure that the grounding device is well connected to the metal part of the building to achieve effective grounding.
4.Detection of equipotential bonding
Equipotential bonding is an important measure to eliminate lightning overvoltage and overcurrent. During the inspection, attention should be paid to whether the metal pipes, cables, and equipment inside and outside the building are equipotential connected, and the reliability of the connection method. At the same time, it is necessary to ensure that the specifications and performance of the equipotential bonding facilities meet the requirements of the relevant standards.
5.Detection of surge protective devices
Surge protectors are important protection devices for electronic equipment, which can effectively suppress lightning overvoltage and overcurrent. When testing, attention should be paid to whether the model, specification, performance and installation location of the surge protector meet the requirements of relevant standards. At the same time, it is also necessary to ensure that the surge protective device is in good working condition and can respond to and cut off the lightning overvoltage and overcurrent in a timely manner. Lightning protection