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Cabo de fibra OPGW-4 com tubo de aço inoxidável coberto de alumínio | 12 144 Cores | G.652D / G.655C para rede elétrica
High quality IEC607948 IEEE1138 standards for designing, testing, and producing with grade A materials available to ensure long-term reliability.
Engineering support supervising and providing its own line of accessories hardware.
Seal stainless steel tube superior protection to the fiber optical to moisture and extreme environmental conditions such as lightning.
To construct OPGW must cut power, resulting in greater loss, thus OPGW must be used in constructing a high-pressure line over 110kv.
Apply to the transformation of old lines.
What is OPGW Aluminum-Covered Stainless Steel Tube Fiber Cable
OPGW (Optical Fiber Composite Overhead Ground Wire) is a special type of optical cable that combines the functions of ground wire protection and fiber optic communication. It is usually deployed at the top of transmission line towers, serving both to replace traditional ground wires in withstanding lightning strikes and short-circuit currents, and to enable high-speed data transmission through the built-in optical fibers. Specifically, the "aluminum-clad stainless steel tube structure" refers to sealing the optical fiber inside a stainless steel tube filled with a special waterproof compound to provide a hydrogen-free environment and mechanical protection, and then wrapping the stainless steel tube with a layer of highly conductive pure aluminum or aluminum alloy. This design, through the composite structure of aluminum and stainless steel, significantly enhances conductivity while maintaining sufficient tensile strength, and takes advantage of aluminum's corrosion resistance to adapt to harsh outdoor environments. It effectively addresses issues in traditional OPGW where the stainless steel tube unit could be problematic due to insufficient conductivity or electrochemical corrosion differences, achieving a comprehensive optimization of optical transmission stability, electrical performance, and mechanical strength.
OPGW Aluminum-Covered Stainless Steel Tube Fiber Cable Parâmetros de especificação
- Parâmetros de especificação
- CARACTERÍSTICAS ÓPTICAS
Cores -12 Cromatografia
| Não. | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Cor | Azul | Laranja | Verde | Marrom | Cinza | Branco |
| Não. | 7 | 8 | 9 | 10 | 11 | 12 |
| Cor | Vermelho | Preto | Amarelo | Violeta | Rosa | Aqua |
Parâmetros técnicos:
Design típico para camada única
| Especificação | Contagem de fibras | Diâmetro (mm) | Peso (kg / km) | RTS (KN) | Curto-circuito (KA2s) |
|---|---|---|---|---|---|
| OPGW-80 (82.3; 46.8) | 24 | 11.9 | 504 | 82.3 | 46.8 |
| OPGW-70 (54.0; 8.4) | 24 | 11.0 | 432 | 70.1 | 33.9 |
| OPGW-80 (84,6; 46,7) | 48 | 12.1 | 514 | 84.6 | 46.7 |
Design típico para dupla camada
| Especificação | Contagem de fibras | Diâmetro (mm) | Peso (kg / km) | RTS (KN) | Curto-circuito (KA2s) |
|---|---|---|---|---|---|
| OPGW-143 (87.9; 176.9) | 36 | 15.9 | 617 | 87.9 | 176.9 |
Observações:
Requisitos detalhados precisam ser enviados para nós para design de cabos e cálculo de preços. Os requisitos abaixo são obrigatórios:
- A, Nível de tensão da linha de transmissão de energia
- B, contagem de fibras
- C, desenho e diâmetro da estrutura do cabo
- D, resistência à tração
- F, Capacidade de curto-circuito
Padrão:
| Padrão | Descrição |
|---|---|
| ITU-TG.652 | Características de uma fibra óptica monomodo. |
| ITU-TG.655 | Características de uma fibra óptica de modo único com deslocamento de dispersão diferente de zero. |
| EIA/TIA598 B | Código de cor dos cabos de fibra óptica. |
| IEC 60794-4-10 | Cabos ópticos aéreos ao longo de linhas de energia elétrica - especificação da família para OPGW. |
| IEC 60794-1-2 | Cabos de fibra óptica - procedimentos de teste de peças. |
| IEEE1138-2009 | Padrão IEEE para teste e desempenho de fio terra óptico para uso em linhas de energia elétrica. |
| IEC 61232 | Fio de aço revestido de alumínio para fins elétricos. |
| IEC 60104 | Fio de liga de alumínio e magnésio e silício para condutores de linha aérea. |
| IEC 6108 | Fios redondos concêntricos colocam condutores elétricos suspensos. |
Estrutura e Composição do Produto
OPGW (Optical Ground Wire) Structure: Multiple optical fibers are placed inside a stainless steel tube filled with water-blocking gel for sealing, moisture protection, and cushioning. This stainless steel tube is then wrapped with an aluminum tube (forming the "aluminum-covered stainless steel tube" structure), which enhances short-circuit current capacity thanks to aluminum's excellent conductivity and corrosion resistance. Finally, the aluminum-covered stainless steel tube is stranded together with aluminum clad steel wires, which provide high mechanical strength and fulfill the electrical and lightning protection requirements of an overhead ground wire. This composite design enables OPGW to serve three functions simultaneously: ground wire protection, high fault current carrying, and optical fiber communication.
Benefícios de OPGW Aluminum-Covered Stainless Steel Tube Fiber Cable
1. High-Quality Design, Materials & Fiber Protection
Compliant with IEC60794 and IEEE1138 standards, manufactured with Grade A materials, and featuring a sealed stainless steel tube that provides superior protection for optical fibers against moisture, lightning, and extreme environmental conditions – ensuring long-term reliability.
2. Engineering Support, Accessory Hardware & Application Scope
Includes full engineering supervision and its own line of accessory hardware. Since OPGW installation requires a power outage (causing significant losses), it is primarily used for new high-voltage lines above 110kV as well as for the transformation of existing old lines.
Aplicações de Engenharia OPGW Aluminum-Covered Stainless Steel Tube Fiber Cable
1. Extreme Climate and High-Altitude Transmission Lines
Under severe conditions such as repeated icing and large temperature differences, OPGW optical cable can withstand continuous stress and deformation, ensuring stable fiber transmission. It can also integrate sensing technology to monitor icing and swaying risks in real time, providing reliable protection for transmission corridors in harsh environments.
2. Transmission Projects in Highly Corrosive Environments
In highly corrosive environments such as coastal mudflats and chemical industrial parks, the aluminum-clad stainless steel tube structure eliminates electrochemical corrosion conditions, allowing long-term resistance to salt spray and chemical erosion without anti-corrosion grease. The aluminum cladding also enhances short-circuit current carrying capacity, making it especially suitable for offshore wind power transmission and power lines in chemical plant areas.
3. Smart Grid and New Energy Integration Communication
This optical cable, as the main carrier for power communication backbones, can utilize remaining fiber cores to build a hybrid communication architecture that addresses public network blind spots during inspection data transmission. It also supports ultra-long-distance, high-bandwidth transmission, meeting data needs for online monitoring, drone video, and more, providing the fiber optic foundation for the digital transformation of power systems.
Envio & Embalagem
Packaging Requisitos:
- 1: Todos os cabos devem ser enrolados em carretéis de madeira tratados que não sejam retornáveis
- 2: As extremidades do cabo devem ser firmemente presas ao carretel e protegidas com waterproof tampas retráteis
- 3: Cada carretel deve incluir:
Uma camada externa protetora de embalagem de plástico
Reforço de ripas de madeira para garantir estabilidade
Pelo menos 1 metro de extremidade do cabo livre reservado para teste
Comprimento padrão do carretel de 3000mm (com uma tolerância permitida de ± 2%)
Identificação do cabo:
O revestimento exterior deve apresentar:
- 1 、 Numeração sequencial única a cada 1m (variação de ± 1% permitida)
- 2 、 Marcações repetidas adicionais em intervalos de 1m mostrando:
Código de produto e contagem de fibras
Identificação do fabricante
Data de produção (mês / ano)
Comprimento total do cabo
Standard Dimensões da Embalagem:
| Length | Container | Size (L×W×H) | Net Mass | Total Mass |
|---|---|---|---|---|
| 2 km | Carretel de madeira | 90 × 75 × 90 cm | 156Kg | 220Kg |
| 3 km | Carretel de madeira | 100 × 68 × 100 cm | 240Kg | 280Kg |
| 4 km | Carretel de madeira | 109 × 75 × 109 cm | 300Kg | 368Kg |
| 5 km | Carretel de madeira | 129 × 72 × 129 cm | 400Kg | 480Kg |
Technical Referência:
- 1 、 Diâmetro padrão do cabo: 10,0 mm
- 2 、 Distância máxima do vão: 100m
- 3 、 Entre em contato com a equipe de vendas para especificações técnicas completas
Padrões de marcação de spool:
As marcações permanentes (altura mínima de 25-30 mm) devem aparecer em ambos os lados de cada carretel:
- 1 、 Nome da empresa e marca comercial
- 2 、 Comprimento do cabo contido
- 3 、 Especificações do cabo (tipo / contagem de fibra)
- 4 、 Orientação do enrolamento
- 5 、 Medidas de peso (bruto / líquido)
Nota: Todos os materiais de embalagem de madeira devem ser submetidos a um tratamento de fumigação adequado antes da utilização.
Comparação de produtos：
Al‑covered Stainless Steel Tube OPGW vs Standard Stainless Steel Tube OPGW
| Feature / Dimension | Al‑covered Stainless Steel Tube OPGW (Central Type) | Standard Stainless Steel Tube OPGW (Stranded/Layer Type) |
|---|---|---|
| Structural Features | Optical fibers are placed in a seamless stainless steel tube (filled with water‑blocking gel). The stainless steel tube is then encased in a layer of aluminum (aluminum‑clad), and the entire assembly is stranded with single or double layers of aluminum‑clad steel (ACS) wires and/or aluminum alloy wires. | Optical fibers are placed in a seamless stainless steel tube (filled with water‑blocking gel). The stainless steel tube (optical unit) replaces one or more metal wires in the stranded layer, and is surrounded by layers of ACS wires and/or aluminum alloy wires. |
| Fiber Core Capacity (typical) | Up to 48 cores (central tube design, outer diameter approx. 5.2 mm). | Up to 288 cores (stranded design can accommodate up to 3 optical units). |
| Typical Applications | Extremely corrosive environments: coastal areas, chemical plants, heavy industrial zones with salt spray. Transmission lines requiring high fault current capacity (short‑circuit) and lightning resistance, as well as small diameter and low weight constraints. | All power transmission lines (35 kV to 1100 kV). Particularly suited for long‑span routes (e.g., river crossings), high‑voltage backbones, and applications requiring excellent heat resistance during short‑circuit events. |
| Engineering Pros | ① Excellent galvanic corrosion resistance: the aluminum cladding is in direct contact with the outer ACS wires, with no potential difference – no anti‑corrosion grease required. ② Increased fault current capacity: the aluminum layer increases the conductive cross‑section, boosting short‑circuit capacity by 10–20 %. ③ Good anti‑corrosion performance: suitable for severely corrosive service environments. ④ Fully metallic structure – long service life, high reliability. | ① High short‑circuit temperature tolerance: up to 450 °C (compared to <300 °C for aluminum tube types). ② Good insulation: stainless steel has high resistance and does not conduct current – during short‑circuit events, heat is transferred from adjacent wires, keeping the stainless steel tube relatively cool and protecting optical fibers. ③ High fiber capacity: stranded design supports up to 288 fibers. ④ Good mechanical compatibility: both structure and span‑tension characteristics are similar to conventional ground wires, making replacement easy. |
| Engineering Cons | ① Lower high‑temperature tolerance: the aluminum cladding tends to experience irreversible plastic deformation above 200 °C. ② Smaller fiber capacity: the central tube structure typically accommodates ≤48 fibers. ③ Higher cost per fiber for lower fiber counts. ④ Stricter fiber excess length control: relies solely on internal tube slack, with no secondary slack from stranding. | ① Galvanic corrosion risk: contact between stainless steel and ACS wires can create a potential difference – anti‑corrosion grease is required to fill the gaps. ② Complex structure: multiple stranding layers increase weight and manufacturing difficulty. ③ Larger cable diameter and heavier weight, leading to higher wind and ice loads. |
| Corrosion / Moisture Resistance | Excellent. The aluminum cladding is in direct contact with the outer ACS wires – no potential difference, so no galvanic corrosion occurs, and no anti‑corrosion grease is required. Well suited for coastal and chemical zones. | Good, but anti‑corrosion grease is required to fill the gaps between the stainless steel tube and ACS wires to prevent galvanic corrosion. Grease may degrade under long‑term exposure, requiring periodic inspection. |
| Short‑circuit Temperature Tolerance | Moderate. The aluminum layer conducts current, contributing to the cable’s overall conductivity, but tends to deform irreversibly above 200 °C. | Excellent (up to 450 °C). Stainless steel has high resistivity – it does not conduct current, and during short‑circuits, heat is transferred from adjacent wires, keeping the steel tube relatively cool and protecting optical fibers. |
| Fault Current / Lightning Resistance | Excellent. The aluminum cladding increases the conductive cross‑section of the tube, improving fault current and lightning resistance. Suitable for transmission lines requiring small diameter and high fault current capacity. | Good. Fault current capacity is determined by the cross‑section of the ACS and aluminum alloy wires. The stainless steel tube contributes negligibly to conductivity. |
| Cost (Relative) | Medium (Al‑covered tube requires additional aluminum cladding, but no expensive anti‑corrosion grease is needed; reduces long‑term maintenance and grease application costs). | Medium‑Low (Lower core count: stainless steel tube has higher manufacturing cost; Higher core count: stranded design offers lower cost per fiber). |
| Maintenance Difficulty | Low – no anti‑corrosion grease required; corrosion resistance reduces maintenance frequency; central structure simplifies construction. | Medium – anti‑corrosion grease may need periodic inspection, and aged grease must be cleaned and reapplied during mid‑span repairs. |
| Suitable Voltage Level (typical) | 35 kV – 220 kV (suitable for medium to high voltage transmission lines where corrosion is a concern). | 35 kV – 1100 kV (including 500 kV and 1000 kV ultra‑high voltage backbones). |
| Lifespan / Durability | 30+ years (no grease degradation issues; superior corrosion resistance). | 30+ years (grease may degrade over time, but stainless steel tube remains intact). |
OPGW Aluminum-Covered Stainless Steel Tube Fiber Cable Guia de Seleção
Choose Al‑covered Stainless Steel Tube OPGW when:
The transmission line passes through severely corrosive environments such as coastal areas, chemical industrial zones, or heavy salt‑spray regions. This design eliminates galvanic corrosion concerns because the aluminum cladding is in direct contact with the outer ACS wires, with no potential difference, so no anti‑corrosion grease is required. It is also well suited for applications requiring high fault current capacity – the aluminum layer increases the conductive cross‑section, typically boosting short‑circuit capacity by 10–20 %. For lines with tight diameter or weight constraints, this design is advantageous due to its single‑layer construction, small diameter, and low weight. Typical voltage levels for this cable range from 35 kV to 220 kV, but it can also be applied on higher voltage lines when corrosion resistance is a primary requirement.
Choose Standard Stainless Steel Tube OPGW (Stranded Type) when:
High fiber count (up to 288 cores) is required – the stranded design can accommodate up to three optical units. For transmission lines demanding excellent short‑circuit temperature tolerance (up to 450 °C), this design is preferred over aluminum‑covered alternatives. It is also the dominant choice for ultra‑high voltage backbones (500 kV to 1100 kV), where long spans, high mechanical strength, and thermal stability are critical. Additionally, for lines that require replacement of conventional ground wires, this design offers good mechanical compatibility and similar span‑tension characteristics, simplifying retrofitting.
Corrosion management considerations:
For Al‑covered designs, galvanic corrosion is inherently prevented without anti‑corrosion grease, making it particularly suitable for long‑term operation in harsh environments with minimal maintenance. For standard designs, anti‑corrosion grease is required to fill the gaps between the stainless steel tube and ACS wires; the grease may degrade over time and requires periodic inspection.
Core count and cost trade‑offs:
For low to medium fiber counts (48 cores or less), Al‑covered designs often achieve lower total lifecycle cost due to corrosion resistance and grease‑free construction. For high fiber counts (above 48 cores), stranded stainless steel designs offer better economy and flexibility, with lower cost per fiber and proven performance on numerous high‑voltage backbones.
Aluminum-Covered Stainless Steel Tube OPGW – Short Installation Guide
1. Pre-installation check：Inspect the cable reel for shipping damage. Measure fiber attenuation with an OTDR and compare with factory test report.
2. Hardware mounting：Install OPGW suspension clamps and dead-end fittings as per tower design. Use corona rings and anti-vibration devices (spiral dampers or Armor Rods) where required for high-voltage lines.
3. Stringing：Place the reel on a tension-controlled stand. Pull the cable using a pulling grip and swivel, keeping tension ≤20% of the cable’s rated tensile strength (RTS). Maintain minimum bending radius: ≥30× cable diameter during pulling.
4. Sag adjustment：Set sag according to the design sag‑tension table for the specific span and temperature. Use a dynamometer or laser rangefinder for accurate measurement.
5. Clamping & grounding：Secure the cable with permanent dead-end or suspension clamps. Connect the aluminum‑covered steel tube and outer wires to the tower ground at specified intervals (typically every 200–300 m) using proper grounding clamps and conductor.
6. Fiber splicing：Splice the stainless steel tube optical unit at joint boxes. Ensure the tube is properly sealed against moisture. Perform OTDR acceptance testing after splicing.
7. Final inspection：Check all hardware for tightness, verify ground continuity, and document sag values for future reference.
Key points: No anti‑corrosion grease is required on the aluminum‑covered tube; the aluminum cladding eliminates galvanic corrosion with ACS wires. Keep the cable clean and avoid damage to the aluminum layer during handling.
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Cable Sheathing
Loose tubes, strength members, and filler ropes are stranded at controlled pitches to form the cable core. The core is then extruded with a PE or LSZH outer sheath. For armored types, steel strips are applied before a second extrusion pass. The sheathing line includes a diameter measurement and cooling system to guarantee a uniform, smooth finish.
Loose Tube Extrusion Line
Colored optical fibers are fed into the extrusion line, where they are enclosed in PBT or PE loose tubes. The tubes are simultaneously filled with water‑blocking gel to protect the fibers from moisture.
Quality Control Laboratory
Routine tests include tensile strength, crush resistance, temperature cycling, and water penetration. These ensure that every cable meets industry standards for mechanical and environmental performance.
Final Coiling & Packaging Zone
Finished cables are precisely wound onto wooden or steel reels. The reels are wrapped with protective materials and labeled for shipment, ensuring safe transport and easy identification.
Perguntas mais frequentes e consulta rápida
OPGW Aluminum-Covered Stainless Steel Tube Fiber Cable FAQ
1. O que torna o OPGW-4 diferente de outros tipos de cabos OPGW?
OPGW-4 usa um tubo solto de aço inoxidável central que é aluminum-covered, combinando alta mechanical resistência, proteção térmica e lightweight condutividade, tornando-o adequado para long-span torres de transmissão de alta tensão.
2. Este cabo é adequado para áreas com raios e alta EMI?
Sim. O design coberto de alumínio fornece excellent capacidade de aterramento, enquanto o stainless tubo de aço protege as fibras ópticas da interferência eletromagnética (EMI), garantindo a integridade do sinal mesmo em corredores de serviços públicos rigorosos.
3. Quais são as especificações de fibra disponíveis?
OPGW-4 suporta 12 a 144 núcleos, usando G.652D (SMF padrão) ou G.655C (NZDSF), oferecendo flexibilidade para utilitário SCADA, proteção e sistemas de telecomunicações.
4. Como o cabo é instalado nas linhas de transmissão?
Ele é instalado como o fio terra mais alto em torres de transmissão usando braçadeiras de tensão, punhos sem saída e acessórios de suspensão. Sua função dupla ( aterramento + dados) reduz o custo de material e manutenção.
5. Quais são os casos de uso típicos para OPGW-4?
OPGW-4 é amplamente utilizado em:
220kV e acima das linhas de transmissão de alta tensão
Redes inteligentes e sistemas SCADA
Electrical subestações
Monitoramento remoto e comunicação de proteção
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