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Product

subsea umbilical, ROV tether & oceanographic tow cable Sentinel RD Ø 55 mm Solid Streamer500 V DC (-20 to +70 °C)3.5mm Thick Polyurethane (PUR) Jacke

Sentinel RD Ø 55 mm Reduced-Diameter Dual-Aramid All-Solid Digital Marine Seismic Streamer CableSentinel RD Ø 55 mm Solid Streamer — 500 V DC — -20 to +70 °C Subsea & Offshore Cable

Sentinel RD Ø 55 mm Reduced-Diameter Dual-Aramid All-Solid Digital Marine Seismic Streamer Cable (Sentinel RD Ø 55 mm Solid Streamer) engineered for 500 V DC service across -20 to +70 °C (min. bend radius 10 × OD).

Water-resistant

EMC screen

Oil-resistant

Approved

Configuration

Order designation: Sentinel RD 55mm Streamer Coax / Cat5e
Outer Ø ≈: 8.2 mm
Net weight ≈: 245 kg/km
Tensile rating ≈: 42.7 kN
Core / stranding: Stranded SnCu + Foam PE/FEP + Armour/Aramid

All sizes (3)

Request a quote Datasheet WhatsApp info@tebaoflex.com

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 500 V DC
Operating temp.: −20…+70 °C
Min. bend radius: 10 × OD
Core / conductor: High-Speed Digit
Outer protection: 3.5mm Thick Poly
Standard: Sentinel RD Ø 55

Typical values for this cable type, based on Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification — confirmed in the datasheet and quotation for your order.

Application fit

Is Sentinel RD 55mm Streamer right for your machine?

Immersion & wet locations

Suitable

Hydrolysis-resistant polyurethane (PUR) or HDPE jacket and water-blocked core withstand continuous deepwater hydrostatic immersion.

Vertical / spreader reel

Suitable

Torque-balanced contra-helical steel wire armour or high-modulus aramid strength member supports dynamic winch deployment without hockling

Trailing & towing

Suitable

Abrasion-resistant outer sheath and high working-load strength elements handle dynamic marine towing, buoy mooring and ROV excursion.

Offshore platform & shipboard deck trays

Suitable

UV-stabilised, oil- and seawater-resistant construction withstands A-frame sheaves, traction winches and open research-vessel decks.

Energy chain / drag chain

Not suitable

Subsea umbilical, ROV tether and towed array cables are not designed for indoor factory automation drag chains.

Use M23 Servo Assembly

Typical machinesUnderwater & Ocean ExplorationOceanographic CTD, ADCP & Deep-Tow SurveysWork-Class & Observation ROV / AUV SystemsSide-Scan Sonar, SAS & Towed Hydrophone ArraysMarine 2D/3D/UHR Seismic Streamers & OBC

Construction

Layer by layer

Shown: Sentinel RD 55mm Streamer (Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification) featuring high-speed digital telemetry pairs, 50 vdc power supply conductors and 3.5mm thick polyurethane (pur) jacket (ø 55 mm) (4-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	High-Speed Digital Telemetry Pairs	Screened twisted pairs for 12 or 24 hydrophone groups per 150 m section
2	50 VDC Power Supply Conductors	Stranded tinned copper power bus conductors
3	Aramid / LCP Synthetic Strength Ropes	Dual axial high-modulus synthetic strength members
4	3.5mm Thick Polyurethane (PUR) Jacket (Ø	Reduced-diameter all-solid streamer jacket for high-count 3D winches

Sentinel RD 55mm Streamer — Standard Subsea & Offshore Execution

Built to Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification with high-speed digital telemetry pairs and 3.5mm thick polyurethane (pur) jacket (ø 55 mm)

Sentinel RD 55mm Streamer — Custom Continuous Winch / Reel Length

Available in custom continuous subsea winch, tow or seabed lengths with water-blocked terminations

Sentinel RD 55mm Streamer — Hydrostatic, Tensile & Routine Certified

Supplied with EN 10204 3.1 routine dielectric, optical OTDR / DC resistance & tensile test report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 500 V DC (Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification)
Core / conductor construction: High-Speed Digital Telemetry Pairs — Screened twisted pairs for 12 or 24 hydrophone groups per 150 m section
Primary dielectric / buffering: 50 VDC Power Supply Conductors — Stranded tinned copper power bus conductors

Thermal

Continuous operating temperature: −20…+70 °C (subsea & offshore duty)
Hydrostatic & thermal stability: Verified thermal and hydrostatic stability per Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification
Storage & transport temperature: −40…+80 °C on export wooden/steel winch reel

Mechanical

Outer protection / armouring: 3.5mm Thick Polyurethane (PUR) Jacket (Ø 55 mm) — Reduced-diameter all-solid streamer jacket for high-count 3D winches
Minimum bending radius: 10 × OD
Armour, strength member & mechanical duty: Aramid / LCP Synthetic Strength Ropes — Dual axial high-modulus synthetic strength members

Resistance

Seawater, hydrostatic & hydrolysis resistance: Engineered for continuous seawater immersion, pressure cycling and hydrolysis resistance per Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification
Oil, drilling mud & abrasion resistance: Resistant to marine hydraulic oils, salt mist, winch sheave wear and seabed abrasion per Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification
Environmental & test standards: IEC 60228 / IEC 60794 / ITU-T G.972 / IEEE 1580 / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: Sentinel RD 55mm Streamer
Sheath colour & metre marking: Continuous metre-marked black outer finish (3.5mm Thick Poly)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard Sentinel RD 55mm Streamer subsea & offshore configurations

Manufactured to Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification for subsea, oceanographic, ROV, seismic and offshore applications.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Breaking / tensile kN ≈	Min. bend R mm
Sentinel RD 55mm Streamer Construction Schedule (−20…+70 °C)
Sentinel RD 55mm Streamer Coax / Cat5e	Coax (39/40/50/75 Ω) or 4Pr Cat5e + Power	Stranded SnCu + Foam PE/FEP + Armour/Aramid	8.2	245	42.7	120
Sentinel RD 55mm Streamer Composite B	Heavy Coax / 64-Ch Digital Bus + Power	Stranded SnCu + Low-Loss Dielectric + Strength	11.5	485	71.2	170
Sentinel RD 55mm Streamer Array / Trunk C	Multi-Ch Digital Streamer / 255-Ch Bus	Redundant Telemetry + Aramid + PUR Jacket	44.5	1,620	95.0	445

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Custom core cross-sections, pair/fibre counts, armour breaking loads and continuous winch/seabed lengths available per Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
Coax (39/40/50/75 Ω) or 4Pr Cat5e + Power	18.50	500 V DC (High-Speed)	−20…+70 °C
Heavy Coax / 64-Ch Digital Bus + Power	11.20	500 V DC (Deep-Tow/Array)	−20…+70 °C
Multi-Ch Digital Streamer / 255-Ch Bus	6.80	500 V DC (Full Array)	−20…+70 °C

Every production length undergoes routine conductor DC resistance, high-voltage dielectric or OTDR continuity and dimensional verification.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
Conductor resistance, optical OTDR continuity & dimensional verification (Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification)	DC resistance at 20 °C / optical attenuation and outer diameter within Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification)	Zero dielectric breakdown and verified insulation resistance for 500 V DC rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, tensile breaking load & water-blocking qualification (Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification)	Verified subsea pressure integrity, torque-balanced tensile performance and thermal stability across −20…+70 °C	Type qualification & periodic lot audit

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

Sentinel RD Ø 55 mm Solid Streamer CompliantEN 10204 3.1 Factory Test CertificateCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX Sentinel RD 55mm Streamer Sentinel RD Ø 55 mm Solid Streamer 500 V DC CE

Delivery form: Heavy-duty export fumigated wooden drums, steel oceanographic winch reels or submarine turntables
Standard lengths: 500 m, 1,000 m, 3,000 m, 6,000 m or custom continuous subsea lengths
MOQ: 100 m (standard configurations) · 500 m (custom subsea builds)
Lead time: 2–6 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFSentinel RD Ø 55 mm Reduced-Diameter Dual-Aramid All-Solid Digital Mar – technical datasheet3 sizes · construction, technical data, approvals XLSXSentinel RD 55mm Streamer spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-26
Updated: 2026-10-26

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What governing standard and construction define Sentinel RD 55mm Streamer (Sentinel RD Ø 55 mm Reduced-Diameter Dual-Aramid All-Solid Digital Marine Seismic Streamer Cable)?

Sentinel RD 55mm Streamer (Sentinel RD Ø 55 mm Reduced-Diameter Dual-Aramid All-Solid Digital Marine Seismic Streamer Cable) is manufactured in accordance with Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification for 500 V DC service over -20 to +70 °C. Its 4-layer construction comprises high-speed digital telemetry pairs, 50 vdc power supply conductors and 3.5mm thick polyurethane (pur) jacket (ø 55 mm).

What is the minimum bending radius and operating temperature range for Sentinel RD 55mm Streamer?

The minimum bending radius for Sentinel RD 55mm Streamer is 10 × OD across its continuous operating temperature range of -20 to +70 °C, ensuring mechanical, hydrostatic and dielectric reliability in subsea and offshore service.

How are the concentric layers of Sentinel RD 55mm Streamer arranged from inside to outside?

From inside to outside, the construction sequence is: (01) High-Speed Digital Telemetry Pairs — Screened twisted pairs for 12 or 24 hydrophone groups per 150 m section; (02) 50 VDC Power Supply Conductors — Stranded tinned copper power bus conductors; (03) Aramid / LCP Synthetic Strength Ropes — Dual axial high-modulus synthetic strength members; (04) 3.5mm Thick Polyurethane (PUR) Jacket (Ø 55 mm) — Reduced-diameter all-solid streamer jacket for high-count 3D winches.

What factory test certificates are supplied with Sentinel RD 55mm Streamer?

Every production drum of Sentinel RD 55mm Streamer undergoes routine conductor resistance/OTDR continuity, high-voltage dielectric and dimensional testing per Sentinel RD (Ø 55 mm, 12/24 Groups per 150 m) Reduced-Diameter Solid Streamer Specification, and is delivered with an EN 10204 3.1 factory test certificate.

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Your selection and application details are copied into the enquiry form below.

01Selected sizes

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02Reel & motion

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03Message for our engineers

Sentinel RD Ø 55 mm Reduced-Diameter Dual-Aramid All-Solid Digital Marine Seismic Streamer Cable

Selected sizes:


Reel & motion:
- Reel type: 
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