Waterproof power optical cable
Through a multi-layered structural design, utilizing polyethylene, phosphated steel wire, high-modulus plastics, and silica materials, the insufficient waterproofing and mechanical protection of waterproof power optical cables have been solved, improving the cable's waterproofing and mechanical strength, extending its service life, and ensuring the stability 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
- 2025-05-14
- Publication Date
- 2026-05-12
AI Technical Summary
Existing waterproof power optical cables are not waterproof enough, making them susceptible to water penetration, which can damage the performance of optical fibers. They also have poor mechanical protection, making them vulnerable to external damage, resulting in a short service life and an inability to withstand the erosion of complex environments, thus affecting the stability of power communication.
The structure consists of a sheath made of polyethylene, reinforcing elements made of phosphated steel wire, a loose tube made of high-modulus plastic, a coating layer made of acrylic ester, and a cladding layer made of silica, forming a multi-layer structure that enhances waterproofness, mechanical strength, and optical signal transmission performance.
It improves the waterproofness, mechanical strength, and optical signal transmission efficiency of optical cables, extends their service life, enhances their resistance to complex environments, and ensures the stability of power communication.
Smart Images

Figure CN224232383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterproof optical cable technology, specifically a waterproof power optical cable. Background Technology
[0002] In modern power systems, communication plays a crucial role. From monitoring the power grid's operational status to transmitting remote dispatch commands, data transmission volumes have increased dramatically and cannot afford to fail. However, power facilities operate in extremely complex environments, frequently facing rainwater and groundwater intrusion, and coastal areas also experience salt spray corrosion. In such environments, ordinary optical cables are prone to increased fiber attenuation and frequent short-circuit faults due to water ingress, making it difficult to guarantee stable communication. At the same time, while overhead power lines are abundant, sharing poles with optical cables can reduce costs and increase efficiency, but it places even stricter requirements on the waterproof performance of the optical cables. With advancements in materials science, high-performance waterproof and weather-resistant materials are constantly emerging, and with the continuous improvement of relevant standards and specifications, waterproof power optical cables have been developed to meet the high reliability requirements of power communication in complex environments.
[0003] Existing waterproof power optical cables have insufficient waterproof capabilities. Once water seeps in, the performance of the optical fiber will be damaged. Secondly, they have poor mechanical protection capabilities and are easily damaged by external forces, such as scratches and compression, which reduces their service life. Their single structure cannot resist environmental erosion. In humid or acidic / alkaline environments, aging is accelerated and their lifespan is significantly shortened, which seriously affects the stability of power communication. Utility Model Content
[0004] The purpose of this utility model is to provide a waterproof power optical cable to solve the problems mentioned in the background art. The existing waterproof power optical cables have insufficient waterproof capabilities, are easily penetrated by water, resulting in damage to the optical fiber performance. Secondly, they have poor mechanical protection capabilities, are easily damaged by external forces, such as scratches and squeezes, which reduces their service life. Furthermore, their single structure cannot resist environmental erosion. In humid or acidic / alkaline environments, they age faster and their lifespan is greatly shortened, seriously affecting the stability of power communication.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof power optical cable, comprising an outer sheath and a connecting sleeve. The outer sheath includes a sheath layer, a reinforcing element fixedly disposed on the inner side of the sheath layer, a loose tube fixedly disposed on the inner side of the reinforcing element, a coating layer fixedly disposed on the inner side of the loose tube, and a cladding layer fixedly disposed on the inner side of the coating layer. Sealing connecting sleeves are fixedly installed at both ends of the connecting sleeve. A fixing groove is opened in the inner cavity of each of the two sealing connecting sleeves. A fixing rod is fixedly installed on both sides of the inner cavity of the connecting sleeve. Cable grease is fixedly disposed in the inner cavity of the cladding layer. The cable grease contains two fiber cores, a metal reinforcing member, a power cord, and a filler rope.
[0006] Preferably, the sheath layer is made of polyethylene material, and the thickness of the sheath layer is set to 1-3mm; it can play a waterproof role and prevent water seepage from affecting the internal optical cable.
[0007] Preferably, the reinforcing element is made of phosphated steel wire, and the thickness of the reinforcing element is set to 0.45-2mm; this increases the tensile and compressive strength of the optical cable, making it less prone to breakage during installation.
[0008] Preferably, the loose sleeve is made of high-modulus plastic material, and the thickness of the loose sleeve is set to 0.2-0.5mm, which has good wear resistance and fatigue resistance, and can withstand external forces for a long time without significant deformation or damage.
[0009] Preferably, the coating layer is made of acrylic ester material, and the thickness of the coating layer is set to 0.6 mm; it has good flexibility and impact resistance, improving the flexibility and micro-bending resistance of the optical cable.
[0010] Preferably, the cladding is made of silicon dioxide material, and the thickness of the cladding is set to 0.12 mm; it has extremely high purity and good optical uniformity, and can achieve different optical properties to meet the requirements of various communication applications for optical cable transmission performance.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the waterproof optical cable, due to the waterproof and corrosion resistant properties of polyethylene, the strong and corrosion resistant properties of phosphated steel wire which can shield electromagnetic fields, the stable support and protection of optical fibers by high-modulus plastic, the enhanced flexibility and impact resistance of optical fibers by acrylate and the reduction of loss, and the guarantee of efficient optical signal transmission by silicon dioxide, exhibits superior performance in terms of waterproofing, mechanical strength, anti-interference, protection of optical fibers and signal transmission compared to the absence of these materials. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of the waterproof power optical cable of this utility model;
[0013] Figure 2 This is a schematic diagram of the connection protection structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the multi-layer structure of this utility model.
[0015] In the diagram: 1. Outer sheath; 2. Connecting sleeve; 3. Sealing connecting sleeve; 4. Fixing rod; 5. Fixing groove; 6. Fiber core; 7. Sheath layer; 8. Reinforcing element; 9. Loose tube; 10. Coating layer; 11. Cladding layer; 12. Metal reinforcement; 13. Power cord; 14. Filler rope; 15. Cable grease. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-3 This utility model provides a waterproof power optical cable, including an outer sheath 1 and a connecting sleeve 2. The outer sheath 1 includes a sheath layer 7. A reinforcing element 8 is fixedly installed on the inner side of the sheath layer 7. A loose tube 9 is fixedly installed on the inner side of the reinforcing element 8. A coating layer 10 is fixedly installed on the inner side of the loose tube 9. A cladding layer 11 is fixedly installed on the inner side of the coating layer 10. Sealing connecting sleeves 3 are fixedly installed at both ends of the connecting sleeve 2. A fixing groove 5 is opened in the inner cavity of both sealing connecting sleeves 3. Fixing rods 4 are fixedly installed on both sides of the inner cavity of the connecting sleeve 2. Cable paste 15 is fixedly installed in the inner cavity of the cladding layer 11. The cable paste 15 contains two fiber cores 6, a metal reinforcing member 12, a power cord 13, and a filler rope 14.
[0018] In this embodiment of the application, the connecting sleeve 2 is first fitted onto one of the outer sleeves 1, and then the two outer sleeves 1 are connected together by an external device. Then the connecting sleeve 2 is slid to make the fixing groove 5 contact the outer sleeve 1, so that the junction of the fixing groove 5 and the outer sleeve 1 is sealed before the connecting sleeve 3. Then the fixing groove 5 and the outer sleeve 1 are fused together by an external device.
[0019] Please see Figure 1-3 Furthermore, the sheath layer 7 is made of polyethylene material, and the thickness of the sheath layer 7 is set to 1-3 mm; the reinforcing element 8 is made of phosphated steel wire material, and the thickness of the reinforcing element 8 is set to 0.45-2 mm; the loose tube 9 is made of high modulus plastic material, and the thickness of the loose tube 9 is set to 0.2-0.5 mm; the coating layer 10 is made of acrylic ester material, and the thickness of the coating layer 10 is set to 0.6 mm; the cladding layer 11 is made of silica material, and the thickness of the cladding layer 11 is set to 0.12 mm.
[0020] In this embodiment, the following features are used: Polyethylene material has good waterproof, insulating, and chemical corrosion resistance, preventing moisture intrusion and protecting the internal structure from external environmental influences; Phosphated steel wire material increases the strength and toughness of the optical cable, enabling it to withstand greater tension and pressure, while also possessing corrosion resistance and electromagnetic shielding capabilities; High-modulus plastic material provides stable support, maintains the shape of the optical cable, reduces deformation and loss of the optical fiber due to external forces, and improves mechanical properties; Acrylic ester material, coated on the surface of the optical fiber, enhances the flexibility and impact resistance of the optical fiber, reduces transmission loss, and prevents surface damage; Silica material, as the core material of the optical fiber, has extremely low optical transmission loss and good thermal stability, ensuring efficient transmission of optical signals.
[0021] In practical use: First, the connecting sleeve 2 is fitted onto one of the outer sheaths 1. Then, the two outer sheaths 1 are connected together by an external device. The connecting sleeve 2 is then slid to make the fixing groove 5 contact the outer sheath 1, sealing the junction of the fixing groove 5 and the outer sheath 1 before the connecting sleeve 3 is sealed. Then, the fixing groove 5 and the outer sheath 1 are fused together by an external device. After fusion, the strength of the connecting sleeve 2 is increased by the fixing rod 4. At the same time, during the laying process, the reinforcing element 8 and the loose tube 9 can prevent damage during laying. The coating layer 10 can effectively reduce transmission loss. The sheath 11 can ensure efficient transmission of optical cable signals. Finally, the sheath layer 7 can effectively increase the waterproofness of the cable and effectively prevent damage during use, greatly improving the service life of the outer sheath 1.
[0022] 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 waterproof power optical cable, comprising an outer sheath (1) and a connecting sleeve (2), characterized in that: The outer sheath (1) includes a sheath layer (7), a reinforcing element (8) is fixedly provided on the inner side of the sheath layer (7), a loose tube (9) is fixedly provided on the inner side of the reinforcing element (8), a coating layer (10) is fixedly provided on the inner side of the loose tube (9), a covering layer (11) is fixedly provided on the inner side of the coating layer (10), a sealing connecting sleeve (3) is fixedly installed at both ends of the connecting sleeve (2), a fixing groove (5) is opened in the inner cavity of both sealing connecting sleeves (3), a fixing rod (4) is fixedly installed on both sides of the inner cavity of the connecting sleeve (2), and a cable grease (15) is fixedly provided in the inner cavity of the covering layer (11). The cable grease (15) contains two fiber cores (6), a metal reinforcing member (12), a power cord (13), and a filler rope (14).
2. The waterproof power optical cable according to claim 1, characterized in that: The sheath layer (7) is made of polyethylene material, and the thickness of the sheath layer (7) is set to 1-3 mm.
3. The waterproof power optical cable according to claim 1, characterized in that: The reinforcing element (8) is made of phosphated steel wire and the thickness of the reinforcing element (8) is set to 0.45-2 mm.
4. A waterproof power optical cable according to claim 1, characterized in that: The loose sleeve (9) is made of high modulus plastic material, and the thickness of the loose sleeve (9) is set to 0.2-0.5 mm.
5. A waterproof power optical cable according to claim 1, characterized in that: The coating layer (10) is made of acrylate material and the thickness of the coating layer (10) is set to 0.6 mm.
6. A waterproof power optical cable according to claim 1, characterized in that: The cladding (11) is made of silicon dioxide material and the thickness of the cladding (11) is set to 0.12 mm.