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Marine Coaxial Cables: What Makes Them Different and How to Choose the Right One

Published: July 2025 | Source: BURY CABLES LIMITED

In harsh and corrosive environments like offshore platforms, naval vessels, and merchant ships, conventional signal cables often fall short. Standard coaxial cables are not designed to withstand the extreme temperature changes, high humidity, vibration, and salt-laden air of marine applications. This is where marine coaxial cable becomes a critical component in ensuring safety, performance, and compliance.

🌊 What Is a Marine Coaxial Cable?

A marine coaxial cable is a specialized RF transmission cable engineered for installation on ships, offshore platforms, or coastal equipment. It maintains low signal loss, EMI protection, and mechanical integrity in marine-grade conditions.

🔍 Key Differences from Standard Coaxial Cable

FeatureStandard Coaxial CableMarine Coaxial Cable
SheathingPVC or PEHalogen-free, oil-resistant, UV-stable, flame retardant, often LSZH
Corrosion ResistanceLimitedHigh – often includes tinned copper or marine-grade braiding
CertificationsGeneral low-voltage/AV specsComplies with IEC 60092, DNV, ABS, Lloyd’s Register
Temperature Range0°C to 70°C (typical)-40°C to +90°C or higher
Flame PerformanceIEC 60332-1 (basic)IEC 60332-3, IEC 60754-2, IEC 61034 (LSZH, low smoke, no toxic gas)
Water ResistanceNoYes – water-blocked and jacket-sealed types

📋 Marine Cable Standards to Know

Marine coaxial cables must comply with both signal integrity requirements and safety codes for naval use. Key standards include IEC 60092-376, IEC 60332-3, IEC 60754-2, IEC 61034, and DNV/ABS approvals for offshore and commercial marine use.

🔧 Where Are Marine Coaxial Cables Used?

  • Radar systems

  • Navigation & communication units

  • Emergency and alarm panels

  • Video surveillance (CCTV)

  • Marine TV and satellite signal transmission

  • Instrumentation control systems

🧠 How to Choose the Right Marine Coaxial Cable?

Five key factors: shielding type, sheath material (LSZH or PUR), voltage/impedance rating, certifications (IEC 60092, DNV, ABS), and environmental sealing (water-blocking gel or PE tape).

✅ Conclusion

For mission-critical signal delivery at sea, choosing a marine coaxial cable over a standard one isn’t just a matter of durability—it’s a matter of safety and compliance. BURY CABLE offers a full line of marine-grade coaxial cable products, designed to meet the toughest regulatory and operational demands of the maritime industry.