JSHF/JSHFP-30/45 Marine Deep-water Sealed Rubber Cable – BYC Cables

Product Overview

Feature Specification
Product Series JSHF (Unshielded) / JSHFP (Shielded)
Application Depth 300m (Type 30 / 3.0 MPa) or 450m (Type 45 / 4.5 MPa)
Rated Voltage 600V AC
Temperature Range Long-term operation at +85°C (+185°F)
Minimum Environment Temp -20°C (-4°F) [Low-temperature bending test]
Key Features Radial and longitudinal watertight integrity, seawater corrosion resistance, high tensile strength, and extreme pressure stability.
Applications Power, control, and signal transmission for submarines, ROVs/AUVs, underwater sensors, and offshore platforms.

Comprehensive Configuration Matrix

Our JSHF series covers over 100+ configurations including multi-core twisted, EMI shielding, and various depth-rated protective jackets. If your specific requirement is not listed in the standard table, please contact us for custom configuration.

Configuration Category Available Options
Core Count 1 to 61 cores
Cross-section Range 0.5 mm2 to 10 mm2
Shielding Unshielded (JSHF), Shielded with metal braid (JSHFP)
Watertight Class 30 (300 meters), 45 (450 meters)
Conductor Type Flexible stranded (Type R)
Conductor Material Bare Copper (BC) or Tinned Copper (TC)
Standard Compliance GJB 774-1989, GJB 1916-1994, IEC 60092-350, MIL-DTL-24643C

Conductor Resistance & Baseline Data

Maximum DC Resistance at 20°C (68°F)

Cross-section (mm2) Stranding (n/mm) Max Resistance [Bare Copper] (Ohm/km) Max Resistance [Tinned Copper] (Ohm/km)
1.0 7 / 0.43 18.1 18.2
1.5 7 / 0.52 12.1 12.2
2.5 7 / 0.68 7.41 7.56
4.0 7 / 0.85 4.62 4.70
6.0 7 / 1.04 3.08 3.11
10.0 7 / 1.35 1.83 1.84

Electrical & Mechanical Performance

Parameter Performance Index
Voltage Test 2.5 kV / 5 min (No breakdown)
Insulation Resistance >= 150 MOhm-km
Insulation Tensile Strength >= 4.83 MPa
Jacket Tensile Strength >= 10.0 MPa
Elongation at Break >= 250 percent
Low-Temp Bending -20°C (-4°F) / 2h (No cracking)
Flame Retardancy Compliant with GB/T18380-2008 standards

Bending Radius Standards

Cable Type Outside Diameter (D) Minimum Bend Radius
Shielded (JSHFP) Any 6 x D
Unshielded (JSHF) D <= 25 mm 4 x D
Unshielded (JSHF) D > 25 mm 6 x D

Construction Layers (Typical)

  1. Flexible Conductor: High-strand bare or tinned copper.
  2. Rubber Insulation: Specialized deep-sea grade rubber for high-pressure stability.
  3. Internal Fillers: Watertight blocking compounds to prevent water ingress.
  4. Shielding (Optional): Tinned copper braid for EMI/RFI protection.
  5. Watertight Jacket: High-strength, seawater-resistant synthetic rubber.

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STEP 1

Inquiry Received

STEP 2

Technical Review

STEP 3

24H Response​