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Power cable manufacturers today let everyone know in detail what is the correct grounding method for the OPGW cable.
Under the impetus of economy and technology, it has effectively promoted the development of China's power industry. Optical cable is an important part of the power system. Good cable can ensure the safety of the power system. The reliable use of 0PGW fiber optic cable is also called fiber-optic composite overhead space. In the overhead transmission line, it has two important functions, grounding and communication. It is widely used in many power systems, but its grounding problem is an important factor that restricts its effective development. It is necessary for us to solve the OPGW in actual work. At the top of the tower, many construction units have considered the lightning protection grounding line for installing the various lines of the tower. However, for the correct and reasonable design and installation of the cable in the grounding line, the OPGW is not properly considered. It should be suspended at the terminal tower and substation. In some cases, this phenomenon is easily overlooked by the staff.
If there is a short circuit and lightning strike, this will generate and pass a large current in the OPGW cable. If the current exceeds the capacity of the cable itself, it will blow or damage the cable, causing the communication service to be interrupted. Safe and stable operation of the power grid
Row. In order to ensure the safe and stable operation of the power system and play a normal communication role, it is necessary to fuse the OPGW cable connected to the substation with the non-metal cable, and then introduce the non-metal cable into the machine room to prevent the introduction of lightning into the equipment room. So what should we do? Applying the correct grounding method to ensure the correct operation of the OPGW cable, in accordance with the relevant regulations, in order to play the function of the lightning diversion and shunt current of the cable, usually one end of the grounding wire is grounded with the OPGW by a parallel cable clamp. . It is necessary to apply the insulated substation OPGW, and use the structural insulation and insulating rubber pad to insulate the joint box and the hoop of the residual cable frame, and use the parallel groove clamp to complete the grounding treatment above the cable joint box and the top of the door frame.
Then how should we apply the correct grounding method to ensure the correct operation of the OPGW cable, in accordance with the relevant regulations, in order to play the function of the lightning diversion and shunt current of the cable, usually one end of the grounding wire is clamped by the groove clamp Grounding with OPGW. It is necessary to apply the insulated substation OPGW card, and use the structural insulation and insulating rubber pad to complete the insulation treatment of the joint box and the hoop of the remaining cable frame, and use the parallel groove clamp to complete the grounding treatment on the top of the cable joint box and the top of the door frame.
Since the beginning of the 21st century, the development speed of China's power industry has been accelerating. Some new technologies and continuous application of power systems, the emergence and application of OPGW cables play an irreplaceable role in improving the stability of power supply systems. However, the problem of grounding and grounding of the optical cable has long restricted its smooth development. It is a current work focus to analyze the problems that have emerged, and must be taken seriously.
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