Cable Protection System Offshore Wind
LISEN provides a variety of custom urethane products and accessories for offshore wind cable protection systems. These products widely used in the shore end of various submarine cables, in cable pipeline crossings, for undersea cable protection, in post-installation cable protection, and specifically for cable protection system offshore wind.
Offshore Wind Cable Protection System Products and Accessories
Offshore wind cable protection accessories include J-tube seal, bend restrictors, bend stiffeners and polyurethane submarine cable protection tube. We can custom submarine cable protection shells in different sizes to fit your project needs according to your design drawings.
Bend Restrictors
Bend restrictors are used to protect subsea cables, umbilicals and flexible pipe. During installation or operation, they prevent these from excessive bending and flexing, thus avoiding cable damage. It’s made of a two-piece polyurethane polymer design with super duplex fasteners. Attaches to piping or cable during deployment, increasing installation efficiency.
J-tube Seal
J-tube seals are used to centralize and partially seal cables in J-tube risers in offshore wind structures.J-tube seal consist of a ductile iron body and a flexible polyurethane elastomer. The J-tube seal is attached to the cable prior to deployment of the splitterless installation.
Bend Stiffeners
Bend stiffeners is a section of tapered polyurethane tubing. Increasing the material thickness makes it progressively stiffer. Commonly, it serves as an add-on to J-tube seals for offshore cable installation into J-tubes. In dynamic applications like these, the termination point requires additional stiffness. This protects the cable from fatigue effects during cable installation and its service life.
Polyurethane Submarine Cable Protection Tube
Our polyurethane submarine cable protection pipes are suitable for many simple and static underwater scenarios ( installation in water depths down to 100m). They offer a cost-effective alternative to ductile iron articulated pipes.
Feature of cps cable protection system
- Manufactured using abrasion-resistant polyurethane;
- Protecting power cables from over-bending and abrasion in critical locations;
- Easy Installation for onshore and offshore;
- Light weight in water, reducing the loading on the pipe;
Advantages of offshore cable protection system
- 1. Ensuring Stable Power Transmission
- 2. Protection Against Corrosion
- 3. Resistance to Ocean Currents and Movements
- 4. Sealing and Waterproofing
- 5. Cost - Efficiency in the Long Run
Polyurethane Applicaiton for cable protection system offshore wind
in oil mining operations, submarein cable laid for the transmission of power and date signals to protect the normal operation of the mining equipment. Customized polyurethane cable shell with high strength and can withstand the seawater pressure and corrosiveness. This greatly extends the service life of submarine cables, ensures the smooth operation of oil extraction and reduces the loss of production downtime due to cable failures.
In the transoceanic submarine communication cable laying project, the cables have to withstand the high pressure of the deep sea and the stress changes brought about by submarine geological activities. Our polyurethane products provide reliable physical protection for the cables, with high strength and good compressive properties, as well as flexibility, reducing damage to the cables caused by stress concentrations.
Polyurethane Vertebrae Bend Restrictors are widely used in undersea cable installation, wellhead connection and J-pipe outlet scenarios. The two-piece unit is securely bolted together to ensure structural integrity, and each component in the system is interchangeable for quick installation and adjustment in the field. This design not only prevents excessive bending and flexing, but also maintains the proper load path from the flexible structure to the fixed structure.
Polyurethane submarine cable protection tubing is used in the telecommunications, energy, oil and gas, and marine construction industries. It is vital for protecting submarine cables and pipelines in dynamic offshore environments. Its lightweight, two-piece design allows it to adapt to the ever-changing seabed for easy installation and replacement.
Polyurethane submarine cable bend restrictors are critical components of offshore energy and telecom infrastructures, preventing excessive bending of underwater cables and ensuring the long-term stable operation of deepwater power and fiber optic cables.
- Product Specifications
- Gallery
We are able to offer matching cable protection systems for your offshore wind projects. We have the customization capabilities to develop and produce innovative complementary cable protection products for you, utilizing the full potential of polyurethane.
Specification of Polyurethane Bending Restrictor
| Product | Cable | Length | Material | Hardness |
| Bend restrictor 3*70 | 3*70cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*80 | 3*80cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*120 | 3*120cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*185 | 3*185cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*200 | 3*200cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*240 | 3*240cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*300 | 3*300cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*400 | 3*400cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
| Bend restrictor 3*500 | 3*500cable | 5M/8M | High-performance polyurethane PU | Shore 83D |
Specfication of Polyurethane Submarine Cable Protection Tube
| Dimensions of polyurethane protection pipes | Dimensions of Band | |||
| I.D | O.D | Thickness | Effective length | |
| 25mm | 65mm | 20mm | 1000-2000mm | L390*W19*T0.6 |
| 35mm | 75mm | L420*W19*T0.6 | ||
| 85mm | 125mm | L580*W19*T0.6 | ||
| 100mm | 140mm | L620*W19*T0.6 | ||
| 105mm | 145mm | L640*W19*T0.6 | ||
| 130mm | 170mm | L720*W19*T0.6 | ||
| 140mm | 180mm | L750*W19*T0.6 | ||
| 150mm | 190mm | L780*W19*T0.6 | ||
| 160mm | 200mm | L810*W19*T0.6 | ||
| 25mm | 75mm | 25mm | L420*W19*T0.6 | |
| 35mm | 85mm | L450*W19*T0.6 | ||
| 85mm | 135mm | L610*W19*T0.6 | ||
| 100mm | 150mm | L660*W19*T0.6 | ||
| 105mm | 155mm | L670*W19*T0.6 | ||
| 130mm | 180mm | L750*W19*T0.6 | ||
| 140mm | 190mm | L780*W19*T0.6 | ||
| 150mm | 200mm | L810*W19*T0.6 | ||
| 160mm | 210mm | L850*W19*T0.6 | ||
| 25mm | 85mm | 30mm | L450*W19*T0.6 | |
| 35mm | 95mm | L390*W19*T0.6 | ||
| 85mm | 145mm | L500*W19*T0.6 | ||
| 100mm | 160mm | L690*W19*T0.6 | ||
| 105mm | 165mm | L710*W19*T0.6 | ||
| 130mm | 190mm | L780*W19*T0.6 | ||
| 140mm | 200mm | L810*W19*T0.6 | ||
| 150mm | 210mm | L850*W19*T0.6 | ||
| 160mm | 220mm | L880*W19*T0.6 | ||
Date Sheet of MDI- combined polyether polyol elastomer physical property
| MDI- Combined Polyether Polyol | ||||
| Prepolymers | - | - | 3H830D | 3H830D |
| Chain extender | - | - | ELAST*879 | ELAST®875 |
| Hardness 23°C | DIN 53505 | Shore | 83D | 87D |
| Hardness -5℃ | DIN 53505 | Shore | 850 | 890 |
| Hardness 80℃ | DIN 53505 | Shore | 75D | 830 |
| Weight ratio of prepolymer components | - | - | 100 | 100 |
| Weight ratio of chain extender | - | - | 97 | 65 |
| Tensile modulus | ISO 527 50mm/min | MPa | 1800-2000 | 2700-2900 |
| Tensile strength | ISO 527 50mm/min | MPa | 51 | 79 |
| Elongation at break | ISO 527 50mm/min | %6 | 20-30 | 8-10 |
| Unnotched impact toughness 20℃ | ASTM.D256 | KJ/㎡ | 8.2 | 11.9 |
| Unnotched impact toughness 0℃ | ASTM.D256 | KJ/㎡ | 7.3 | 9.5 |
| Relative density | g/mm | 1.17 | 1.19 | |
| Casting and curing | ||||
| Mold temperature | ℃ | 100-120* | ||
| Gel time(100g mix 23℃) | min | 25 | 10 | |
| Gel time (100g mix ke hot mold) | - | 2'05” | 2'35” | |
| Demolding time | min | 30 | 30 | |
| Post-curing | h/℃ | 14/100 | 14/100 | |
Date Sheet of Polyurethane Elastomer Physical Property
| Polyurethane Prepolymer Properties | |
| % NCO | 4.3±0.2 |
| Appearance@20℃ | Transparent liquid |
| Viscosity@80℃/mPa·s | 800 |
| Melting condition,h/°C,20L | 8/80 |
| Curing agent | MOCA |
| Chain expansion coefficient(NH2/NCO) | 0.9 |
| Amount of curing agent(per 100 parts of prepolymer) | 12.5 |
| Temperature of prepolymer/°C | 80 |
| Curing agent temperature/°C | 110 |
| Recommended mold temperature/°C | 100 |
| Gel time/min(400g mix) | 6~8 |
| Demolding time/min(400g mix) | 30~40 |
| Post-curing,h@℃ | 16/100 |
| Hardness@20℃,Shore A | 85±2 |
| Hardness@20℃,Shore D | - |
| Tensile strength/MPa | 28.6 |
| 100% constant tensile strength/MPa | 7.6 |
| 300% constant tensile strength/MPa | 11.2 |
| Elongation at break/% | 520 |
| Tear Strength/(Right Angle,KN/m) | 80 |
| Resilience/% | 32 |
| DIN roller abrasion/m㎡ | 162 |
Subsea Cable Protection
Cable Protection System Offshore Wind
Submarine Cable Protection
Undersea Cable Protection
Underwater Cable Protection
Offshore Cable Protection
Offshore Cable Protection System
CPS Cable Protection System
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Cable Protection System Offshore Wind
Polyurethane submarine cable bend restrictors are rigorously tested to meet international standards such as ISO 13628-5 and IEC 61892. Polyurethane submarine cable bend restrictors are proven to perform under extreme temperatures, hydrostatic pressures and cyclic loads to ensure stability in submarine cable operations. Do you have a similar application or need a replacement cable bend restrictor? Send us on your inquiry today.
Function of Cable Protection System Offshore Wind
- 1. Securing power transmission and protecting against hazards-You should be aware that an offshore wind cable protection system can ensure stable power transmission for you. During cable laying and operation, It helps your submarine cables to resist physical damage, sea water corrosion and ocean currents.
- 2. Good sealing properties- Offshore Wind Cable Protection System has excellent sealing. Due to this, it prevents seawater from penetrating into the cables and ensures that the electrical performance of the cables is stabilized.
- 3. Integrated design advantages- You'll find that offshore wind cable protection systems often feature an integrated design. This design combines multiple protection functions in a compact structure. Thus, it reduces the footprint and improves installation and maintenance efficiency. In the long term, even though the upfront investment might be high, its great protection performance cuts down on cable replacement and maintenance frequency, ultimately reducing the overall cost.
- 4. Cable protection system protects power cable at critical points against over-bending and abrasion. The products are made of abrasion-resistant polyurethane and are commonly used not only in the offshore wind industry but also in oil and gas structures.
What customized services can you provide for submarine cables of offshore wind power projects?
We can customize the thickness and hardness of polyurethane cable shell, as well as the matching J-tube seals, bend restrictors, bend stiffener and other products according to the specifications of different submarine cables, the laying environment, and use of requirements, etc. We provide feasible solutions and corresponding products for submarine cable protection.
How long is the service life of your polyurethane products for submarine cable protection?
In a normal offshore wind power environment, our polyurethane cable protection products have a service life of 10 - 20 years, depending on the actual use of the environment.
How difficult is it to install the product, do I need a professional to install it?
The products are relatively easy to install, but to ensure the quality and effectiveness of the installation, it is best to be operated by our trained professionals, we can also provide on-site installation guidance.
Can you quickly customize protection products for different sizes of submarine cables?
We have the ability to quickly respond to customization. With advanced equipment and professional team, we can customize protection products for different specifications of cables in a short period of time after receiving the demand.
What is the impact of your polyurethane molding solution on the project schedule?
Our solutions are highly efficient and mature, from product customization to molding delivery, we will strictly follow the project timeline to shorten the construction period to the maximum extent without affecting the overall progress of the offshore wind power project.
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