Corrosion-resistant power optical cable
By using a multi-layered structural design and specific materials, the problem of corrosion of traditional power optical cables in harsh environments has been solved, improving the corrosion resistance and mechanical strength of the optical cables and ensuring the stability and service life of power communication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG PACIFIC POWER COMM EQUIP CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional power optical cables are susceptible to damage from corrosive media in harsh environments, leading to decreased transmission performance and shortened service life. Furthermore, external moisture can easily penetrate and affect performance in humid weather.
It adopts a multi-layer structure design, including an outer sheath, armor layer, water-blocking layer, reinforcing layer and inner sheath, and uses fluoroplastics, galvanized steel wire, fiber-reinforced plastics and high-modulus polyester materials to enhance the corrosion resistance and mechanical strength of the optical cable.
It improves the corrosion resistance, mechanical strength, and electrical insulation performance of optical cables, ensuring stable and reliable operation of power communication and extending their service life.
Smart Images

Figure CN224232398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power optical cable technology, specifically a corrosion-resistant power optical cable. Background Technology
[0002] Traditional power fiber optic cables can function normally in general environments, but they face severe challenges in harsh environments such as coastal areas, chemical industrial parks, and mines. Coastal areas have high air salinity and humidity, chemical industrial parks are filled with various corrosive chemicals such as acids and alkalis, and mines not only have high humidity but may also contain corrosive mineral liquids. The corrosive media in these environments can damage the outer sheath, internal metal components, and even the inner sheath itself of the fiber optic cable, leading to decreased transmission performance, shortened lifespan, and in severe cases, communication outages, threatening the stable operation of the power system.
[0003] Existing power optical cables are susceptible to corrosion when exposed to complex chemical materials, which can easily damage the internal circuitry. During installation, tension and daily vibration and impact can cause the cables to deform and break. In humid weather, when a single layer of the optical cable is damaged, external moisture can easily enter the cable, affecting its performance and making it impossible to ensure the stable and reliable operation of power communication. Utility Model Content
[0004] The purpose of this invention is to provide a corrosion-resistant power optical cable to solve the problems mentioned in the background art. Existing power optical cables are prone to damage to internal circuits when exposed to complex chemical materials. They are also prone to deformation and breakage during installation, tension, and daily vibration and impact. Furthermore, in humid weather, when a single layer of the optical cable is damaged, external moisture can easily enter the cable, affecting its performance and making it impossible to ensure stable and reliable operation of power communication.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant power optical cable, comprising an outer sheath, the outer sheath comprising an outer protective layer, an armor layer fixedly disposed on the inner side of the outer protective layer, a water-blocking layer fixedly disposed on the inner side of the armor layer, a reinforcing layer fixedly disposed on the inner side of the water-blocking layer, a loose tube layer fixedly disposed on the inner side of the reinforcing layer, an inner sheath fixedly disposed within the cavity of the loose tube layer, an optical cable hanging point fixedly disposed on the outer ring of the middle part of the outer sheath, a snap-fit groove being formed on the outer ring of the middle part of the optical cable hanging point, a wear-resistant layer fixedly disposed on the outer surface of the optical cable hanging point, the wear-resistant layer being made of aluminum alloy material, and the inner sheath comprising cable grease, the inner side of which is provided with four optical fibers, a power cord, and a filler rope.
[0006] Preferably, the outer sheath is made of fluoroplastic material, and the thickness of the outer sheath is set to 0.5-2mm; to ensure the electrical insulation and mechanical properties of the optical cable under various environmental conditions.
[0007] Preferably, the armor layer is made of galvanized steel wire and the thickness of the armor layer is set to 0.5-1.5mm, so that it can withstand the tensile force during the laying process and the external impact that may be received in the use environment.
[0008] Preferably, the water-blocking layer is made of water-blocking tape material, and the thickness of the water-blocking layer is set to 0.1-0.5 mm; to prevent moisture from corroding optical fibers and other metal components.
[0009] Preferably, the reinforcing layer is made of fiber-reinforced plastic material, and the thickness of the reinforcing layer is set to 1-3 mm; this enhances the overall strength and stability of the optical cable while ensuring the electrical insulation performance of the optical cable.
[0010] Preferably, the loose tube layer is made of high-modulus polyester material, and the thickness of the loose tube layer is set to 0.5-2mm; it has a certain degree of flexibility and can adapt to the bending and deformation of the optical cable in different environments.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Fluoroplastics, with their superior corrosion resistance, insulation and low friction properties, isolate corrosion and aid in laying; galvanized steel wire, with its high strength and rust resistance, enhances tensile and compressive strength; water-blocking tape expands when exposed to water, effectively cutting off water hazards; fiber-reinforced plastics, with their lightweight, high strength, corrosion resistance and insulation, stabilize the structure; and high-modulus polyester is used to make loose tubes, protecting optical fibers and buffering stress. Compared with single-layer, these materials comprehensively improve the durability, mechanical strength and overall performance of the optical cable, including waterproofing and insulation. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the corrosion-resistant power optical cable of this utility model;
[0013] Figure 2 This is a schematic diagram of the multi-layer structure of the corrosion-resistant power optical cable of this utility model;
[0014] Figure 3 This is a vertical cross-sectional view of the corrosion-resistant power optical cable of this utility model;
[0015] Figure 4 This is a cross-sectional view of the corrosion-resistant power optical cable of this utility model.
[0016] In the diagram: 1. Outer sheath; 2. Optical cable hanging point; 3. Clip slot; 4. Inner sheath; 5. Outer protective layer; 6. Armor layer; 7. Water-blocking layer; 8. Reinforcing layer; 9. Loose tube layer; 10. Abrasion-resistant layer; 11. Power cord; 12. Optical fiber; 13. Filler rope; 14. Cable grease. Detailed Implementation
[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0018] Please see Figure 1-4 This utility model provides a corrosion-resistant power optical cable, including an outer sheath (1), characterized in that: the outer sheath 1 includes an outer sheath 5, an armor layer 6 is fixedly provided on the inner side of the outer sheath 5, a water-blocking layer 7 is fixedly provided on the inner side of the armor layer 6, a reinforcing layer 8 is fixedly provided on the inner side of the water-blocking layer 7, a loose tube layer 9 is fixedly provided on the inner side of the reinforcing layer 8, an inner sheath 4 is fixedly provided in the inner cavity of the loose tube layer 9, an optical cable hanging point 2 is fixedly provided on the outer ring in the middle of the outer sheath 1, a snap-fit groove 3 is opened on the outer ring in the middle of the optical cable hanging point 2, and a wear-resistant layer 10 is fixedly provided on the outer surface of the optical cable hanging point 2. The wear-resistant layer 10 is made of aluminum alloy material, and the inner sheath 4 includes cable paste 14. Four optical fibers 12, a power cord 11 and a filler rope 13 are provided on the inner side of the cable paste 14.
[0019] In use, when the optical cable is laid overhead and fixed to a pole or other support, the external component is used to lock the optical cable to the locking groove 3 in the optical cable hanging point 2 for limiting the position. The wear-resistant layer 10 can improve the service life of the optical cable hanging point 2, and the multi-layer structure can effectively improve the service life of the optical cable.
[0020] Please see Figure 1-4 This utility model provides a corrosion-resistant power optical cable, including an outer sheath 5 made of fluoroplastic material with a thickness of 0.5-2mm, an armor layer 6 made of galvanized steel wire with a thickness of 0.5-1.5mm, a water-blocking layer 7 made of water-blocking tape with a thickness of 0.1-0.5mm, a reinforcing layer 8 made of fiber-reinforced plastic material with a thickness of 1-3mm, and a loose tube layer 9 made of high-modulus polyester material with a thickness of 0.5-2mm.
[0021] In this application embodiment, fluoroplastics are used as the outer sheath material of the optical cable. This effectively protects the internal structure from corrosion and physical damage caused by external chemicals, while ensuring good insulation performance, preventing signal interference and leakage. Its low-friction properties also facilitate cable laying. Galvanized steel wire is typically used to make the armor layer of the optical cable, significantly enhancing its tensile, compressive, and lateral pressure resistance, protecting it from mechanical damage during laying and use, preventing small animals from gnawing on it, and extending its service life. Water-blocking tape is mainly used to prevent moisture from penetrating the interior of the optical cable, avoiding damage to optical fibers, metal conductors, and other components. To prevent corrosion, fiber-reinforced plastics enhance the tensile strength, bending resistance, and torsional resistance of optical cables, ensuring stable structure and performance in various complex environments. Their insulation properties also contribute to improved electrical safety. High-modulus polyester is commonly used to manufacture loose tubes for optical cables, placing the optical fiber within them to provide protection and buffer against external mechanical pressure, tensile force, and impact. Its water and chemical corrosion resistance ensures long-term stable operation of the optical fiber in harsh environments.
[0022] In practical use: When laying optical cables overhead, the optical cable is fixed to the pole or other support. External components are used to lock the cable in the locking groove 3 inside the optical cable hanging point 2. The wear-resistant layer 10 can improve the service life of the optical cable hanging point 2. At the same time, the multi-layer structure can effectively protect the power line 11 and optical fiber 12 inside the inner sheath 4. The filler rope 13 can increase the tension of the optical cable. Excess gaps in the inner sheath 4 can be filled with cable paste 14. During the laying process, the armor layer 6 and the reinforcing layer 8 can prevent the power optical cable from being damaged. The outer sheath 5 can effectively improve the corrosion resistance of the power optical cable. Finally, the loose tube 9 can effectively protect the inner sheath 4 and prevent damage to the optical fiber 12 inside.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A corrosion-resistant power optical cable, comprising an outer sheath (1), characterized in that: The outer sheath (1) includes an outer sheath (5), an armor layer (6) is fixedly provided on the inner side of the outer sheath (5), a water-blocking layer (7) is fixedly provided on the inner side of the armor layer (6), a reinforcing layer (8) is fixedly provided on the inner side of the water-blocking layer (7), a loose tube layer (9) is fixedly provided on the inner side of the reinforcing layer (8), and an inner sheath (4) is fixedly provided in the inner cavity of the loose tube layer (9). An optical cable hanging point (2) is fixedly provided on the outer ring in the middle of the outer sheath (1), and a snap-fit groove (3) is opened on the outer ring in the middle of the optical cable hanging point (2). A wear-resistant layer (10) is fixedly provided on the outer surface of the optical cable hanging point (2), and the wear-resistant layer (10) is made of aluminum alloy. The inner sheath (4) includes cable grease (14), and four optical fibers (12), a power cord (11), and a filler rope (13) are provided on the inner side of the cable grease (14).
2. The corrosion-resistant power optical cable according to claim 1, characterized in that: The outer protective layer (5) is made of fluoroplastic material, and the thickness of the outer protective layer (5) is set to 0.5-2 mm.
3. The corrosion-resistant power optical cable according to claim 1, characterized in that: The armor layer (6) is made of galvanized steel wire and the thickness of the armor layer (6) is set to 0.5-1.5 mm.
4. The corrosion-resistant power optical cable according to claim 1, characterized in that: The water-blocking layer (7) is made of water-blocking tape material, and the thickness of the water-blocking layer (7) is set to 0.1-0.5 mm.
5. The corrosion-resistant power optical cable according to claim 1, characterized in that: The reinforcing layer (8) is made of fiber-reinforced plastic material, and the thickness of the reinforcing layer (8) is set to 1-3 mm.
6. The corrosion-resistant power optical cable according to claim 1, characterized in that: The loose tube layer (9) is made of high modulus polyester material, and the thickness of the loose tube layer (9) is set to 0.5-2 mm.