SINGLE-ARMORED CABLE
Submarine optical cables are high-performance communication cables designed for marine environments, used to stably and efficiently transmit optical and electrical signals in the underwater environment. The cables consist of a central optical unit, inner steel wires, copper tubes (for relay submarine cables), multiple protective layers, and special armor layers.
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Core Advantages
- Outstanding compressive and tensile strength: The unique arched internal armor structure design gives the optical cable excellent compressive and tensile strength. Whether under the huge water pressure in the deep sea or during the laying and recovery process when subjected to tension, the internal optical fibers will not be damaged, ensuring the continuity of communication.
- High water pressure resistance and long lifespan: Using advanced materials and processes, it can withstand pressures up to 5000 meters deep. At the same time, after strict testing and optimization, the normal service life is not less than 25 years, reducing maintenance costs, and providing customers with a long-term and reliable communication solution.
- Efficient data transmission: Supports multi-fiber pair configuration to meet the demand for large-capacity data transmission. The low loss characteristic of the optical fiber enables the signal to remain stable during long-distance transmission, ensuring the high-speed and accurate transmission of data.
- Good insulation: Has excellent high-voltage insulation capability. Relay submarine cables can operate continuously and stably at normal working voltage for 25 years.
Technical Specification of GHSA Submarine Optical fiber cable
Structure chart
Structure parame
| No. | Name | Parameter | Remark |
| 1 | Optical fibers | G.652D | ×24 |
| 2 | Stainless steel tube | Φ2.7mm | |
| 3 | Armouring wire | Φ1.63mm | ×8 |
| 4 | Armouring wire | Φ1.54mm | ×8 |
| 5 | Armouring wire | Φ1.15mm | ×8 |
| 6 | Copper tube | Φ9.4mm | |
| 7 | HDPE sheath | Φ18mm | ±1.0mm |
| 8 | Armouring wire | Φ3.2mm | ×20 |
| 9 | Bitumen | ||
| 10 | PP-yarn | Φ31mm | ±1mm |
Specifications
| Specifications | Name | Unit | Nominal Value |
| Mechanical performance | Cable breaking load(CBL) | KN | 200 |
| Nominal Transient Tensile strength (NTTS) | KN | 120 | |
| Nominal Operating Tensile strength (NOTS) | KN | 80 | |
| Nominal permanent tensile Strength (NPTS) | kN | 40 | |
| Repeated bending | Times | 30 | |
| Minimum bending radius | m | 1.0 | |
| Impact | N.m | 200 | |
| Crush resistance | kN/100mm | 20 | |
| Physics erformance | Outer diameter | mm | 31 |
| Weight in the air | kg/km | 2200 | |
| Weight in the seawater | kg/km | 1400 | |
| Water penetration performance | 5Mpa water pressure, 14 days, single direction water penetration length | m | <150 |
| Electrical performance | DC resistance(20℃) | Ω/km | ≤0.9 |
| Insulated resistance of conductor and stainless steel loose tube | MΩ•km | 100000 | |
| DC voltage of conductor and stainless steel loose tube (3min) | VDC | 45000 | |
| Environmental performance | Working temperature range | ℃ | -20~+50 |
| Storage temperature range | ℃ | -30~+60 |
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Main Applications
- Cross-ocean communication: As a key component of the global communication network, it connects various continents, carries a vast amount of international calls, internet data, and financial transaction information, and is the core infrastructure for global communication, providing efficient and stable communication services for multinational enterprises, international organizations, and individuals.
- Ocean observation network: Used to connect ocean observation stations, underwater sensors, and research equipment, it transmits real-time ocean environmental data, such as temperature, salinity, and ocean currents, assisting in marine scientific research, marine resource exploration, and marine disaster warning, and providing data support for the development of the marine industry.
- Communication for islands and offshore facilities: Provides reliable communication links for islands and the mainland, between islands and islands, as well as for offshore oil platforms and offshore wind power fields, ensuring smooth communication for personnel, equipment monitoring, and operation management, and promoting the development of offshore industries.
