RECH 4×0.3mm² Waterproof Transverse Watertight Transmission Cable

Product Overview

The RONA RECH Transverse Watertight Transmission Cable is a specialized solution developed exclusively for underwater industrial automation and marine applications. As a premium 4×0.3mm² waterproof cable, it solves the persistent challenge of stable low-voltage signal and power transmission in high-salt, high-humidity, and high-pressure underwater environments. Unlike traditional waterproof cables that rely solely on outer sheath protection, this underwater industrial cable features an innovative dual-protection structure of external water repellency and internal water blocking, delivering full cross-sectional transverse watertight performance. It provides reliable "nerve conduction" for underwater equipment, ensuring uninterrupted operations even in harsh subsea conditions for marine engineering firms and offshore equipment operators.

Core Advantages

Full Cross-Sectional Transverse Watertight Design: The integrated water-blocking tape and yarn, made from polyester fiber composite high-water-absorbent material, expand hundreds of times their volume upon contact with water. Even if the outer sheath is damaged, it quickly forms a dynamic sealing barrier to prevent water penetration along core gaps, eliminating short circuits and equipment failures.

High-Purity Oxygen-Free Copper Conductors: Constructed with multi-strand stranded high-purity oxygen-free copper (purity ≥99.95%), this seawater resistant cable offers excellent conductivity and oxidation resistance. Its maximum conductor resistance at 20°C is ≤12.10 Ω/km, ensuring efficient power and signal transmission over long distances.

Superior Corrosion and Wear Resistance: The black silicone rubber sheath (RAL9005) provides exceptional resistance to seawater corrosion, UV radiation, and mechanical abrasion. With a wear amount of ≤0.1mm/1000 friction cycles, it withstands the rigors of underwater towing and pressure.

High-Efficiency Electromagnetic Shielding: The tinned copper wire braid shielding (coverage ≥85%) combined with a bare copper tape drainage layer delivers excellent EMI protection. Its grounding resistance is ≤2Ω, ensuring clear signal transmission in electrically noisy underwater environments.

Wide Temperature and Flexibility Range: Operates reliably from -40°C to +90°C and features a flexible design that supports frequent bending and towing, making it ideal for dynamic underwater equipment.

Technical Specifications

Applications

This Transverse Watertight Transmission Cable is essential for the following underwater and marine applications:

Remotely Operated Vehicles (ROVs) and underwater manipulators

Seabed environmental monitoring systems and water quality sensors

Offshore oil and gas platform subsea instruments and equipment

Underwater security and surveillance systems

Aquaculture automation equipment

Tidal energy and wave power generation devices

Any nearshore or subsea application requiring reliable waterproof transmission

FAQs

What is the difference between transverse watertight and traditional waterproof cables?

Traditional waterproof cables only protect against external water penetration through the sheath. Our transverse watertight cable prevents water from spreading along the cable length even if the sheath is damaged, significantly improving safety and reliability.

Can this cable be submerged in seawater continuously?

Yes, the chloroprene rubber sheath and corrosion-resistant materials are designed for continuous submersion in seawater, making it ideal for long-term subsea installations.

Do you offer custom cable lengths?

Yes, while the standard packaging is 100 meters per coil, we can provide custom lengths up to 500 meters per reel to meet specific project requirements.

What is the insulation resistance of this cable?

The PVC insulation provides an insulation resistance of ≥100 MΩ·km, effectively isolating core signals and preventing crosstalk.