Immersion & wet locations
Water-blocked core matrix and hydrolysis-resistant subsea jacketing withstand continuous deepwater hydrostatic pressure.
Product
FM020712 Series (FM020712-1 to FM020712-8) 2,000m Water-Blocked Individually Foil-Shielded Twisted-Pair & Power Composite Oceanographic & Acoustic Towed Instrumentation Cable (ASTM B33 / Subsea, 600 V, -30 °C to +80 °C).
Typical values for this cable type, based on ASTM B33 / 2,000 m Undersea Acoustic Instrumentation — confirmed in the datasheet and quotation for your order.
Application fit
FM020712 Series (FM020712-1 to FM020712-8) 2,000m Water-Blocked Individually Foil-Shielded Twisted-Pair & Power Composite Oceanographic & Acoustic Towed Instrumentation Cable (ASTM B33 / Subsea, 600 V, -30 °C to +80 °C).
Water-blocked core matrix and hydrolysis-resistant subsea jacketing withstand continuous deepwater hydrostatic pressure.
Torque-balanced aramid or contra-helical steel armour supports vertical winch deployment without hockling.
Marine-grade outer sheath and armour package resist LARS sheave abrasion, UV exposure and salt-spray corrosion.
High tensile breaking strength supports underwater towing, ROV excursion and seabed plough/trencher duty.
Subsea umbilical and tow construction is not intended for high-cycle indoor factory drag chains.
Use Drag-Chain Servo CableConstruction
Shown: FM020712 (ASTM B33 / 2,000 m Undersea Acoustic Instrumentation) featuring isolated foil-shielded pairs (4×2×20 awg), power conductors (3×18 awg, 600 v) and subsea black pur outer jacket (5-layer construction).
| # | Layer | Material & reference |
|---|---|---|
| 1 | Isolated Foil-Shielded Pairs (4×2×20 AWG) | Black/White numbered pairs (46 Ω, 33 pF/ft) with isolated Al/PET foil & drain |
| 2 | Power Conductors (3×18 AWG, 600 V) | Three stranded tinned copper power cores cabled in central core |
| 3 | Thermoset Water-Block & Overall Foil | Interstices filled with thermoset waterblock + overall Alum/Polyester shield & drain |
| 4 | 800 lb Synthetic Fiber Strength Layer | Overall braided aramid/synthetic strength member (800 lbs MBL, 160 lbs SWL) |
| 5 | Subsea Black PUR Outer Jacket | Flexible hydrolysis-resistant black polyurethane jacket (2,000 m depth rated) |
Built to ASTM B33 / 2,000 m Undersea Acoustic Instrumentation with isolated foil-shielded pairs (4×2×20 awg) and subsea black pur outer jacket
Available in custom continuous subsea/wellbore drum lengths or pre-terminated assemblies
Supplied with EN 10204 3.1 routine dielectric, resistance & pressure/dimensional report
Technical data
Sizes
Manufactured to ASTM B33 / 2,000 m Undersea Acoustic Instrumentation for subsea, offshore, deep-well and marine applications.
| Order designation | Configuration | Core / stranding | Outer Ø ≈ mm | Net weight ≈ kg/km | Tensile rating kN ≈ | Min. bend R mm | Enquiry |
|---|---|---|---|---|---|---|---|
| FM020712 Construction Schedule (−30…+80 °C) | |||||||
| FM020712 Config A (Compact) | 4×2×24 AWG + 2×18 AWG (or 4C) | Stranded tinned Cu (IEC 60228 / ASTM) | 10.4 | 155 | 4.5 | 85 | |
| FM020712 Config B (Standard) | 4×2×20 AWG + 4×16 AWG (or 8C) | Stranded tinned Cu (IEC 60228 / ASTM) | 13.3 | 265 | 9.6 | 110 | |
| FM020712 Config C (Heavy Hybrid) | 8×2×20 AWG + 4×12 AWG (or 12C) | Stranded tinned Cu (IEC 60228 / ASTM) | 16.6 | 420 | 18.5 | 140 | |
| Configuration | Max. DC R₂₀ / Atten. Ω/km or dB/km | Rating / Impedance | Operating temp. |
|---|---|---|---|
| 4×2×24 AWG + 2×18 AWG (or 4C) | 28.40 | 600 V (45–100 Ω data) | −30…+80 °C |
| 4×2×20 AWG + 4×16 AWG (or 8C) | 10.70 | 600 V (45–100 Ω data) | −30…+80 °C |
| 8×2×20 AWG + 4×12 AWG (or 12C) | 5.40 | 600 V (High-Power Hybrid) | −30…+80 °C |
Quality & approvals
Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.
| Testing & inspection | Test value / reference | Frequency |
|---|---|---|
| Routine tests | ||
| Conductor resistance, continuity & dimensional verification (ASTM B33 / 2,000 m Undersea Acoustic Instrumentation) | DC resistance at 20 °C / optical attenuation and outer diameter within ASTM B33 / 2,000 m Undersea Acoustic Instrumentation tolerances | Every manufactured drum length |
| High-voltage dielectric & insulation resistance test (ASTM B33 / 2,000 m Undersea Acoustic Instrumentation) | Zero dielectric breakdown and verified insulation resistance for 600 V rating | Every manufactured drum length |
| Sample tests | ||
| Hydrostatic pressure, water-blocking & mechanical endurance qualification (ASTM B33 / 2,000 m Undersea Acoustic Instrumentation) | Verified submersion integrity, tensile load and thermal stability across −30…+80 °C | Type qualification & periodic lot audit |
Marking & supply
Sheath marking
Technical documents
FAQ
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