Stainless Steel Wire Armoured XLPE Power Cable For Submarine, Deep Sea, Offshore Wind & Severe Salt Corrosion Engineering

• YJ: Cross-linked polyethylene (XLPE) insulation, suitable for all voltage ranges (low/medium/high voltage)
• V: Extruded PVC inner insulating sheath, used for isolating the shielding layer and armor layer
• 62: Double-layer austenitic stainless steel wire spiral armor + black marine-grade salt spray resistant PVC outer sheath; the core difference from YJV32 galvanized steel wire armor is that the stainless steel armor completely avoids corrosion failure under long-term salt water and salt spray environments.
• Voltage Coverage: 0.6/1kV low voltage, 8.7/10kV, 8.7/15kV medium voltage, 26/35kV high voltage
• Customizable Conductor Configuration: Single core/three core, Grade 2 compacted T2 oxygen-free copper core, cross-sectional area range 16mm²~630mm²

• ZA/ZB/ZC-YJV62: Multi-level flame retardant type, suitable for enclosed offshore integrated pipeline corridors, coastal chemical industrial parks, and underground dock commercial complexes.
• WDZ-YJV62: Low-smoke halogen-free modified type, suitable for offshore platform auxiliary power supplies and coastal subway tunnel power supply circuits.
• Super-strong saltwater resistant reinforced outer sheath: Customized for deep-sea subsea pipeline crossings and offshore wind turbine vertical riser cables.
• Low-temperature resistant marine sheath: Suitable for high-latitude cold sea area ports and offshore wind power projects.
• Anti-marine biofouling special sheath: Suitable for long-term underwater static laying of subsea pipelines.

• Rated AC Operating Voltage: 0.6/1kV, 8.7/10kV, 8.7/15kV, 26/35kV Three-phase Marine Power Distribution System
• Power frequency withstand voltage, lightning impulse withstand voltage, and partial discharge performance fully comply with GB/IEC standards, consistent with conventional YJV series cables of the same voltage rating.
• Ultra-low dielectric loss design reduces cable self-heating loss during 24-hour continuous full-load operation of offshore wind power booster stations and heavy-duty dock equipment.

• Minimum Allowable Bending Radius: 15 times the outer diameter of the finished cable
• Axial Tensile Load Capacity: Double-layer stainless steel wire armor can withstand the self-weight traction load of long-distance vertical risers and submarine pipelines, with vertical laying depths reaching hundreds of meters, requiring no additional external traction protection structure; its tensile fatigue resistance is far superior to single-layer YJV32 galvanized steel wire armor.
• Static Heavy-Load Compression Resistance: Passes the national standard marine cable compression destructive test; the insulation layer shows no cracking, delamination, or permanent deformation, and can resist seabed rock compression and accidental impact damage from anchors.
• Laying Environment Temperature Standard: Standard model construction environment ≥0℃; low-temperature customized version supports laying at -20℃, requiring no preheating treatment.
• Torsion Fatigue Resistance: The double-layer interlaced spiral steel wire structure disperses the torsional force generated during long-distance submarine pipeline traction, effectively preventing damage from internal cable misalignment.

• Design service life under subsea burial and coastal salt spray conditions: Over 45 years, far exceeding that of YJV32 galvanized steel wire armored cables.
• Accelerated salt spray aging test: Passed a 10,000-hour continuous salt spray corrosion test; the armor layer showed no rust, and the sheath showed no deterioration.
• Long-term seawater immersion resistance: Passed a 100-meter continuous vertical seawater immersion aging test; suitable for long-term static pipeline laying in brackish water estuaries and deep-sea subsea areas.
• Chemical corrosion resistance: Resistant to long-term corrosion from marine chloride ions, alkaline substances in coastal soil, chemical residues at docks, and marine microbial secretions.
• UV aging resistance: Supports long-term semi-outdoor coastal cable duct laying; the sheath showed no cracking, powdering, or insulation performance degradation.

The core difference between YJV62 and YJV22 steel tape armor and YJV32 single-layer galvanized steel wire armor lies in its double-layer stainless steel armor structure. Galvanized steel wire gradually corrodes and perforates after years of salt spray and seawater immersion, leading to insulation leakage and circuit failure. In contrast, YJV62 austenitic stainless steel armor has natural passivation and rust-preventing properties, and the double-layer winding further enhances structural safety margins, fundamentally solving the problem of core corrosion failure in marine power cables. Design engineers prioritize YJV62 in all offshore wind power, subsea crossing, and port core power supply projects to avoid frequent subsequent cable replacements.

This product combines axial tensile strength and superior seawater corrosion resistance, making it suitable for both vertical offshore wind turbine riser installations requiring high tensile forces and long-term submersion of subsea pipelines in seawater environments. It eliminates the need for designers to separately configure tensile protection and anti-corrosion auxiliary pipelines. This simplifies the overall marine engineering power distribution design, reduces the procurement of auxiliary anti-corrosion materials, and effectively controls the initial construction investment for EPC contractors.

The YJV62 series covers low, medium, and high voltage levels, with single-core and three-core conductor structures and cross-sections ranging from small distribution to heavy-duty main feeders. It can simultaneously meet the power needs of various applications, including low-voltage auxiliary power supplies for offshore platforms, medium-voltage trunk lines for wind farm substations, and high-voltage incoming lines for offshore centralized substations. Marine engineering general contractors can complete the procurement of all special anti-corrosion armored cables for the entire offshore wind power or port renovation project with just one supplier, simplifying procurement classification, incoming material inspection and on-site temporary warehousing management.

The three-core YJV62 uses a flexible, non-hygroscopic elastic filler for overall rounded corner molding, resulting in a smooth outer sheath surface and a low coefficient of friction. In long-distance submarine pipeline and coastal rock-laying projects, compared to irregularly filled armored cables, the overall traction resistance is significantly reduced, lowering the requirements for traction winch equipment and significantly shortening the overall marine cabling construction cycle.

The dedicated double-layer stainless steel wire armored automated production line for YJV62 is equipped with real-time online monitoring equipment to monitor stainless steel wire winding density, double-layer overlap rate, insulation layer thickness, and armor compactness. The tensile strength and corrosion resistance structural parameters of each batch are strictly controlled within a narrow standard tolerance range, avoiding insufficient tensile load on individual cable reels or incomplete double-layer winding, eliminating major safety hazards in submarine and offshore vertical riser projects.

• Marine New Energy Infrastructure: Submarine-buried power transmission cables for onshore-offshore wind farms, power supply cables for wind turbine risers, medium/high voltage main feeders for offshore substations, and offshore distribution lines for floating photovoltaic systems.
• Port and Terminal Construction Projects: Underground power trunk lines for large container terminals, heavy-duty distribution cables for vertical lifting equipment at terminals, power supply lines for coastal rock foundations of ship repair yards, and auxiliary power supply cables for offshore oil platforms.
• Water Crossing Projects: Submarine power cables crossing brackish water areas in estuaries, corrosion-resistant power cables for deep-water pumping stations in coastal reservoirs, and submarine-buried distribution lines for tidal power stations.
• Coastal Heavy Industry Projects: Underground salt spray-resistant trunk cables for coastal chemical industrial parks, power supply lines for vertical workshops in coastal smelters, and power lines buried on steep slopes in coastal open-pit mines.

• Prioritize Calculations Based on Both Tensile and Corrosion Conditions: For submarine pipelines, offshore risers, and nearshore laying scenarios with year-round salt spray, the cable's self-weight traction tension and environmental salt corrosion level must be calculated in advance to confirm the matching of YJV62 double-layer stainless steel armor. The use of YJV62 galvanized steel wire armored cables as substitutes in long-term underwater and nearshore core power supply circuits is strictly prohibited to avoid the risk of armor rust and cable damage. For submarine laying lengths exceeding 600 meters, please submit the project water depth, total cable length, and load parameters to our internal marine technology team for free verification calculations of tensile load-bearing capacity and corrosion resistance level.
• Voltage and Cross-Section Matching Logic: Select the appropriate low/medium/high voltage level according to the marine power distribution system voltage; match the copper core cross-section according to the transformer capacity, submarine transmission distance, and peak load current, and perform voltage drop simulation for long-distance submarine laying to prevent terminal voltage deviation from exceeding the allowable engineering range.
• Customized matching rules for marine environments: Standard YJV62 is used for ordinary coastal neutral soils; ultra-strong salt water resistant reinforced type is used for deep-sea and estuary seabed crossing projects; flame-retardant/low-smoke halogen-free type is used for enclosed offshore platforms and underground pipeline corridors at wharves; and low-temperature resistant marine sheath type is used for port projects in high-latitude cold sea areas.
• Mandatory Shielding Structure Confirmation: Medium- and high-voltage YJV62 cables used in offshore wind power and port pipeline corridors must maintain a complete and continuous copper tape metallic shielding layer to suppress strong electromagnetic interference to marine monitoring, communication, and fiber optic cables laid in the same pipeline.

• Ambient Temperature Limits: The standard cable laying ambient temperature is ≥0℃; for winter construction in cold sea areas, low-temperature marine-specific sheath models must be selected to avoid brittle cracking of the outer sheath during long-distance submarine pipeline traction and stretching.
• Bending Radius Control Standards: The bending radius for all bends, pipeline penetrations, and offshore equipment terminal connections must be ≥15 times the cable's outer diameter; excessive sharp-angle bends are prohibited to prevent the stainless steel wire armor edges from scratching the inner lining and XLPE insulation layer.
• Anchoring requirements for offshore vertical risers: Special heavy-duty cable anchoring devices should be installed at the upper and lower ends of the wind turbine vertical riser to share part of the long-term tensile load and avoid fatigue damage to the stainless steel wire armor caused by long-term tension at a single point; Sufficient cable slack should be reserved at the offshore booster station and dock distribution cabinet for future underwater terminal maintenance and replacement.
• Submarine Pipeline Sealing and Impact Protection Measures: For submarine buried pipelines, dedicated marine waterproof cable sealing kits should be installed at both ends of the cable to completely prevent seawater from seeping into the cable. For pipeline sections passing through areas where ships are anchored, a thick concrete protective layer should be laid above the cable layer to resist accidental anchoring impacts and seabed rock pressure.
• Multiple Cable Parallel Laying Heat Dissipation Rules: Sufficient heat dissipation gaps should be reserved between parallel YJV62 marine cables to avoid heat accumulation leading to a decrease in actual current carrying capacity. In cable trenches at coastal wharves and in offshore pipeline corridors, isolation barriers should be used to separate high, medium, and low voltage cable laying areas.

• Before initiating acceptance work, verify the batch factory inspection certificate, third-party full-type marine corrosion protection test report, CE marine certification, and copper raw material certificate of conformity.
• After cable laying and marine waterproof terminal production are completed, complete insulation resistance testing, power frequency withstand voltage testing, and long-term partial discharge testing.
• Conduct a continuity test on the double-layer stainless steel wire armor to confirm the integrity of the double-layer anti-corrosion tensile protective metal ring.
• Complete a reliable grounding connection for the stainless steel wire armor and copper strip shielding layer, and test the grounding resistance to ensure compliance with the safety operation specifications for offshore wind power, port, and tidal power station marine power grids.

• Each delivery includes a complete set of officially certified materials stamped by the factory, at no additional cost: National Power Industry Full-Type Test Report, Special Inspection Certificate for Marine Salt Spray Corrosion Protection, IEC Certificate of Conformity, CE Marine Engineering Certification Documents, Certificate of Origin for Copper Raw Materials, Batch Production Inspection Records, and a Dedicated YJV62 Subsea Laying and Waterproof Terminal Construction Guide. These documents fully meet the requirements for third-party audits of offshore wind power projects, wharf construction supervision filing, fire safety acceptance of coastal industrial parks, and customs clearance for overseas marine EPC projects, avoiding delays in the construction cycle of large-scale offshore projects due to incomplete special corrosion protection certification materials.

• Our dedicated YJV62 marine corrosion-resistant cable technical team offers free consultation services: subsea riser tensile strength calculation, long-distance subsea voltage drop simulation, voltage level and conductor cross-section matching recommendations, salt water resistance/flame retardant/low smoke halogen-free grade selection, and optimized design of overall laying schemes for offshore wind farms and wharves. For large-scale orders in offshore wind power, port, and cross-water water conservancy projects, professional marine engineers provide remote video on-site construction guidance, promptly helping construction teams solve technical challenges such as subsea pipeline traction, underwater cable sealing, and marine engineering acceptance.

• We have established long-term, exclusive strategic supply partnerships with top-tier T2 oxygen-free copper smelters and high-strength austenitic stainless steel wire manufacturers, completely eliminating the use of recycled copper and low-grade, easily rusting carbon steel wire. Each batch of products undergoes comprehensive salt spray corrosion testing and high-voltage laboratory performance testing before delivery. The double-layer overlap rate of the stainless steel wire, insulation layer thickness, and armor winding tightness are monitored online in real time throughout the process, ensuring that all cable reels have stable rust and corrosion resistance and tensile strength, eliminating the risk of major circuit failures in long-term marine underwater engineering projects.

• Our dedicated YJV62 double-layer stainless steel wire armored intelligent production workshop maintains ample inventory of mainstream low-voltage/medium-voltage standard specifications, allowing for immediate shipment. To meet the critical needs of offshore wind power, port and transoceanic EPC projects, we have prioritized the production of customized ultra-strong saltwater resistant, flame retardant, low-smoke halogen-free, low-temperature marine modified YJV62 cables to fully meet the tight construction schedules of marine engineering contractors.

• Each roll of marine cable is marked with a unique production batch number, production date, voltage rating, and core specifications, enabling full traceability from raw material supply to finished product delivery at sea. Large-scale orders for offshore wind power, port, and cross-waterway water conservancy projects are eligible for extended factory quality warranties. If defects caused by non-human-caused damage, such as stainless steel armor corrosion, insulation leakage, or sheath deterioration, occur within the warranty period due to factory manufacturing processes, we will provide free replacement and full cable replacement services to minimize the risk of large-scale offshore power supply disruptions for the purchaser and long-term marine engineering EPC partners.