Armoured grip suspension clamp for OPGW is exposed to complex outdoor environments for a long time and needs to withstand various tests such as wind, temperature difference, corrosion, and vibration. Therefore, regular and correct maintenance is very important for armoured grip suspension clamp for OPGW. This article will explain the maintenance points of armoured grip suspension clamp for OPGW in detail from the following aspects.
The environment is one of the important factors affecting the life of the armoured grip suspension clamp for OPGW, and maintenance needs to give priority to environmental adaptability. In high-temperature and high-wetland areas, the metal parts of the fixture are prone to oxidation and corrosion. It is necessary to regularly remove water vapor, dust and corrosive impurities attached to the surface. It can be wiped with a dry rag or purged with compressed air to prevent long-term retention of moisture to form rust spots. For environments with high salt spray and dust concentrations such as coastal or industrial areas, it is best to spray a special anticorrosive coating on the connecting parts of the fixture every quarter. Note that the coating needs to cover bolts, nuts and other easily corroded parts, which can form an isolation barrier and facilitate resistance to salt spray erosion. In windy areas, it is necessary to focus on checking the sealing of the connection between the fixture and the tower to prevent strong winds from trapping sand and dust into the gap of the fixture and causing wear. If necessary, dust-proof gaskets or protective sleeves can be installed.
Structural inspection is a key part of maintaining the armoured grip suspension clamp for OPGW, and it is necessary to fully cover the various components of the clamp. First of all, check whether the main body of the fixture is deformed, cracked or worn, especially the liner in the clamping part of the optical cable. If the liner is found to be aging, cracking or losing elasticity, the aging-resistant liner of the same type should be replaced in time to prevent the direct contact between the optical cable and the metal from causing the sheath to wear out. Also pay attention to the fastening state of the connecting bolts. You can use a torque wrench to check the torque of the bolts according to the design standards to prevent the bolts from loosening due to long-term vibration. For bolts that have rusted, they need to be rust-proof and then fastened. If the thread is damaged, it must be replaced as a whole, so that the connection strength can meet the requirements.
The calibration of performance parameters should also not be forgotten. This is an important means to check the function of armoured grip suspension clamp for OPGW, and it needs to be dynamically adjusted in combination with operating data. You can use special test equipment to regularly check whether the clamping force of the fixture is within the design range. If the clamping force is insufficient, it may cause the optical cable to slip, and the performance needs to be restored by adjusting the bolt preload or replacing the elastic components. If the grip is too strong, it may compress the optical cable, and the clamping structure needs to be properly loosened to prevent damage to the optical fiber. In areas with large temperature differences, it is necessary to pay attention to the temperature compensation performance of the fixture, and check whether the structural stress is abnormal due to thermal expansion and contraction. The clamping gap can be adjusted appropriately according to seasonal changes, so that it does not appear too tight at low temperatures and does not appear loose at high temperatures.
Through the above regular maintenance, the service life of the armoured grip suspension clamp for OPGW can be effectively extended, so that the fixture can play a long-term stable supporting role, and provide a solid guarantee for the safe operation of the OPGW optical cable system.