According to the relevant regulations, all lightning protection devices put into use must be regularly tested for lightning protection, and lightning protection and anti-static tests should be conducted once every six months in inflammable and explosive places, and at least once a year in other places.
Lightning protection devices put into use will gradually deteriorate, rust or break with the increase of service time. For example, the performance of surge protector will improve with the increase of service time, and the leakage will even exceed the safe value. If it is difficult to find out without regular inspection, it is very dangerous to continue to use surge protectors with excessive leakage. There are also many surge protectors that have broken down, burned out or broken connecting wires after a thunderstorm season, and need to be tested and replaced regularly. Not to mention the external lightning protection devices (lightning receptor, down conductor, grounding device), which are exposed to the outside or buried in corrosive soil for a long time, are easy to break and rust, affecting their lightning protection effect. All these require professional lightning protection detection to find problems, provide reasonable rectification measures, ensure the operation effect of lightning protection devices and reduce lightning safety hazards.
Lightning protection detection first needs a team of professional technicians, then advanced equipment accurately measures resistance, and finally analyzes the measured data and issues rectification opinions. The whole link is indispensable. It depends on which province you are in, whether you have found a better lightning detection company in each province, and whether you have the corresponding qualifications. For example, knowledge and practice testing in Anhui Province has such conditions.
Therefore, it is very necessary for enterprises and institutions to carry out lightning protection detection regularly.