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Product

LCP-braided FIST neutrally buoyant work-class ROV tetherISO 13628-5 / RT Series3.0–4.5 kV FIST TetherLCP-Braided Buoyant

RT0136 (RT Series) 3.0–4.5 kV LCP-Braided Buoyant ROV TetherISO 13628-5 / DNV-ST-E402 · 3.6/6 kV · Lcp-braided fist neutrally buoyant work-class

RT Series (RT0084 / RT0127 / RT0133 / RT0136 / RT0137) LCP-Braided FIST Electro-Optical Neutrally Buoyant Work-Class ROV Excursion Tether Cable (ISO 13628-5 / DNV-ST-E402, 3.6/6 kV, -30 °C to +80 °C, min. bend radius 12 × OD).

Water-resistant

Anti-torsion braid

EMC screen

Oil-resistant

Configuration

Order designation: RT0136 Type A (Standard Lift)
Outer Ø ≈: 25.4 mm
Net weight ≈: 1,680 kg/km
Tensile rating ≈: 320.0 kN
Core / stranding: Class 5 tinned Cu + 316L FIMT

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: 3.6/6 kV
Operating temp.: −30…+80 °C
Min. bend radius: 12 × OD
Core / conductor: 3.0–4.5 kV
Outer protection: LCP Braid
Standard: ISO 13628-5

Typical values for this cable type, based on ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is RT0136 right for your machine?

Immersion & wet locations

Suitable

Water-blocked core matrix and hydrolysis-resistant subsea jacketing withstand continuous deepwater hydrostatic pressure.

Vertical / spreader reel

Suitable

Torque-balanced aramid or contra-helical steel armour supports vertical winch deployment without hockling.

Offshore platform & shipboard deck trays

Suitable

Marine-grade outer sheath and armour package resist LARS sheave abrasion, UV exposure and salt-spray corrosion.

Trailing & towing

Suitable

High tensile breaking strength supports underwater towing, ROV excursion and seabed plough/trencher duty.

Energy chain / drag chain

Not suitable

Subsea umbilical and tow construction is not intended for high-cycle indoor factory drag chains.

Use Drag-Chain Servo Cable

Typical machinesMarine & Offshore CableWork-Class & Observation ROV SystemsOffshore Wind & Subsea Power GridsOceanographic, Sonar & Seismic SurveyCommercial Diving & Subsea Intervention

Construction

Layer by layer

Shown: RT0136 (ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard) featuring fist optical core (6 sm + 6 mm), thin-wall hv power cores (3×6.0 + 2×2.5) and dedicated buoyancy layer & outer sheath (5-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	FIST Optical Core (6 SM + 6 MM)	Laser-welded gel-filled stainless-steel tube housing 12 optical fibres
2	Thin-Wall HV Power Cores (3×6.0 + 2×2.5)	Dual-head co-extruded HV power conductors (7.4 kV endurance qualified)
3	Screened Twisted Quad (1×0.5 mm² STQ)	Foil/braid-screened control quad cabled in outer interstice
4	Inner Sheath & LCP Braid (130 kN)	Water-blocked core + black TPE inner sheath + LCP braided strength member
5	Dedicated Buoyancy Layer & Outer Sheath	Low-density syntactic buoyancy jacket + yellow abrasion-resistant PUR sheath

RT0136 — Standard Subsea & Marine Execution

Built to ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard with fist optical core (6 sm + 6 mm) and dedicated buoyancy layer & outer sheath

RT0136 — Custom Drum Length & Termination Kit

Available in custom continuous subsea/wellbore drum lengths or pre-terminated assemblies

RT0136 — Routine & Hydrostatic Test Certified

Supplied with EN 10204 3.1 routine dielectric, resistance & pressure/dimensional report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 3.6/6 kV (ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard)
Core / conductor construction: FIST Optical Core (6 SM + 6 MM) — Laser-welded gel-filled stainless-steel tube housing 12 optical fibres
Primary dielectric / buffering: Thin-Wall HV Power Cores (3×6.0 + 2×2.5) — Dual-head co-extruded HV power conductors (7.4 kV endurance qualified)

Thermal

Continuous operating temperature: −30…+80 °C (subsea, marine & submersible duty)
Short-circuit / peak thermal rating: Verified thermal stability per ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: Dedicated Buoyancy Layer & Outer Sheath — Low-density syntactic buoyancy jacket + yellow abrasion-resistant PUR sheath
Minimum bending radius: 12 × OD
Hydrostatic, tensile & crush duty: Inner Sheath & LCP Braid (130 kN) — Water-blocked core + black TPE inner sheath + LCP braided strength member

Resistance

Hydrostatic pressure & water blocking: Engineered for continuous submersion and hydrostatic integrity per ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard
Seawater, oil & chemical resistance: Resistant to seawater hydrolysis, hydraulic oils and abrasion per ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard
Environmental & test standards: IEC 60228 / IEC 60332 / ISO 13628-5 / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: RT0136
Sheath colour & metre marking: Continuous metre-marked yellow outer finish (LCP Braid + Yellow PUR)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard RT0136 subsea & marine configurations

Manufactured to ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard for subsea, offshore, deep-well and marine applications.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Tensile rating kN ≈	Min. bend R mm
RT0136 Construction Schedule (−30…+80 °C)
RT0136 Type A (Standard Lift)	3 × 10 mm² HV + 6×2×1.0 + 12F FIMT	Class 5 tinned Cu + 316L FIMT	25.4	1,680	320.0	380
RT0136 Type B (Heavy Work-Class)	3 × 16 mm² HV + 8×2×1.0 + 12F FIMT	Class 5 tinned Cu + 316L FIMT	32.2	2,650	480.0	485
RT0136 Type C (Ultra-Deep Trencher)	3 × 25 mm² HV + 12×2×1.0 + 24F FIMT	Class 5 tinned Cu + 316L FIMT	38.1	3,890	680.0	570

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 grades and factory drum lengths available per ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
3 × 10 mm² HV + 6×2×1.0 + 12F FIMT	1.91	3.6/6 kV (≤0.35 dB/km SM)	−30…+80 °C
3 × 16 mm² HV + 8×2×1.0 + 12F FIMT	1.21	3.6/6 kV (≤0.35 dB/km SM)	−30…+80 °C
3 × 25 mm² HV + 12×2×1.0 + 24F FIMT	0.78	3.6/6 kV (≤0.35 dB/km SM)	−30…+80 °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, continuity & dimensional verification (ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard)	DC resistance at 20 °C / optical attenuation and outer diameter within ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard)	Zero dielectric breakdown and verified insulation resistance for 3.6/6 kV rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, water-blocking & mechanical endurance qualification (ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard)	Verified submersion integrity, tensile load and thermal stability across −30…+80 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

ISO 13628-5 / DNV-ST-E402 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 RT0136 ISO 13628-5 / DNV-ST-E402 3.6/6 kV CE

Delivery form: Heavy-duty export fumigated wooden drums or steel subsea reels
Standard lengths: 500 m, 1,000 m or custom continuous subsea/wellbore lengths
MOQ: 100 m (standard configurations) · 500 m (custom builds)
Lead time: 2–5 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFRT0136 (RT Series) 3.0–4.5 kV LCP-Braided Buoyant ROV Tether – technical datasheet3 sizes · construction, technical data, approvals XLSXRT0136 spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-25
Updated: 2026-10-25

FAQ

Questions engineers ask first

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

What governing standard and construction define RT0136 (RT0136 (RT Series) 3.0–4.5 kV LCP-Braided Buoyant ROV Tether)?

RT0136 (RT0136 (RT Series) 3.0–4.5 kV LCP-Braided Buoyant ROV Tether) is manufactured in accordance with ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard for 3.6/6 kV service over -30 °C to +80 °C. Its 5-layer construction comprises fist optical core (6 sm + 6 mm), thin-wall hv power cores (3×6.0 + 2×2.5) and dedicated buoyancy layer & outer sheath.

What is the minimum bending radius and operating temperature range for RT0136?

The minimum bending radius for RT0136 is 12 × OD across its continuous operating temperature range of -30 °C to +80 °C, ensuring mechanical and dielectric reliability in subsea, marine and submersible service.

How are the concentric layers of RT0136 arranged from inside to outside?

From inside to outside, the construction sequence is: (01) FIST Optical Core (6 SM + 6 MM) — Laser-welded gel-filled stainless-steel tube housing 12 optical fibres; (02) Thin-Wall HV Power Cores (3×6.0 + 2×2.5) — Dual-head co-extruded HV power conductors (7.4 kV endurance qualified); (03) Screened Twisted Quad (1×0.5 mm² STQ) — Foil/braid-screened control quad cabled in outer interstice; (04) Inner Sheath & LCP Braid (130 kN) — Water-blocked core + black TPE inner sheath + LCP braided strength member; (05) Dedicated Buoyancy Layer & Outer Sheath — Low-density syntactic buoyancy jacket + yellow abrasion-resistant PUR sheath.

What factory test certificates are supplied with RT0136?

Every production drum of RT0136 undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per ISO 13628-5 / DNV-ST-E402 Work-Class ROV Tether Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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01Selected sizes

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02Reel & motion

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03Message for our engineers

RT0136 (RT Series) 3.0–4.5 kV LCP-Braided Buoyant ROV Tether

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Reel & motion:
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