Lightning, as a natural phenomenon, releases huge energy that brings many hazards to humans and equipment. Lightning can directly hit surrounding objects, causing damage and injury. Traffic signal facilities are usually located at high places in the open air, becoming potential targets for lightning strikes. Once a traffic signal facility is struck by lightning, it will not only cause traffic interruption, but may also cause permanent damage to the equipment itself. Therefore, strict lightning protection measures are essential.
In order to ensure the safety of surrounding residents and the integrity of the traffic signal pole itself, the traffic signal pole must be designed with lightning protection underground, and a lightning rod can be installed on the top of the traffic signal pole if necessary.
Traffic signal light pole manufacturer Qixiang has many years of production experience and is very knowledgeable about lightning protection measures. Please rest assured to leave it to us.
The lightning rod installed on the top of the traffic signal pole can be about 50mm long. If it is too long, it will affect the beauty of the traffic signal pole itself and will be more or less damaged by wind. The technology of lightning protection and grounding of the traffic signal pole foundation is much more complicated than installing a lightning rod on it.
Taking a small traffic signal light pole as an example, the foundation of a small traffic signal light pole is roughly 400mm square, 600mm pit depth, 500mm embedded part length, 4xM16 anchor bolts, and one of the four anchor bolts is selected for grounding. The main function of the grounding rod is to connect the outside world with the underground. When lightning strikes, the grounding rod releases the electricity to avoid lightning attacks on wires and cables. The specific installation method is to connect the grounding rod with an anchor bolt with a flat iron, one end rises to the upper part of the foundation pit, and one extends to the underground. The grounding rod does not need to be too large, and a diameter of 10mm is sufficient.
In addition to lightning protection devices and grounding systems, insulation protection is also an important part of lightning protection.
The cables in traffic signal light poles should be selected from materials with good insulation properties and insulated by professional construction. The insulation layer should use materials with weather resistance and durability to improve the equipment’s lightning resistance. At the same time, in key parts such as the equipment’s junction box and electrical control cabinet, an insulation layer should also be added to prevent lightning from directly invading the equipment.
In order to ensure the lightning protection effect of traffic signal poles, regular inspection and maintenance are essential. Inspection work can be carried out by using a lightning meter to detect the performance of the lightning protection device and the connectivity of the grounding system. For problems found, damaged equipment should be repaired or replaced in time. In addition, regular maintenance and care can also extend the service life of the equipment and reduce the occurrence of failures.
Through our explanation above, I believe you have understood how to take lightning protection measures for traffic signal poles! If you have project requirements, please contact us for a quote.
Post time: Mar-28-2025
