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Extra-heavy-duty steel-armoured subsea trencher umbilicalISO 13628-5 / DNV3.3–6.6 kV (18×10 mm²)1,975 kN MBL (Ø58 mm)

RM0005 3.3–6.6 kV (1,975 kN) Steel-Armoured Trencher UmbilicalISO 13628-5 / DNV · 3.6/6 kV · Extra-heavy-duty steel-armoured subsea trencher umbilical

RM0005 (58.0 mm OD, 1,975 kN MBL) Extra-Heavy-Duty Multi-Layer Steel-Armoured Subsea Trencher, Plough & Seafloor Mining Umbilical Cable (ISO 13628-5 / DNV, 3.6/6 kV, -30 °C to +80 °C, min. bend radius 15 × OD).

Water-resistant

Anti-torsion braid

EMC screen

Oil-resistant

Configuration

Order designation: RM0005 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: 15 × OD
Core / conductor: 18×10 mm² HV
Outer protection: 1,975 kN
Standard: ISO 13628-5/DNV

Typical values for this cable type, based on ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical — confirmed in the datasheet and quotation for your order.

Application fit

Is RM0005 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: RM0005 (ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical) featuring triple redundant fist units (3×4 sm), screened twisted quad (1×1.34 mm² stq) and 1,975 kn multi-layer steel armour (5-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Triple Redundant FIST Units (3×4 SM)	Three independent laser-welded stainless-steel optical tubes (12 SM fibres)
2	Screened Twisted Quad (1×1.34 mm² STQ)	Central foil/braid-screened quad for emergency telemetry and control
3	HV Power Conductors (18×10.0 mm²)	18 stranded copper cores (180 mm² total) with dual-head thin-wall HV insulation
4	Water-Blocked Core & Heavy Bedding	Hydrophobic void filler + heavy-duty pressure-resistant inner sheath
5	1,975 kN Multi-Layer Steel Armour	High-Tensile contra-helical high-tensile galvanized steel wire armour (Ø 58.0 mm)

RM0005 — Standard Subsea & Marine Execution

Built to ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical with triple redundant fist units (3×4 sm) and 1,975 kn multi-layer steel armour

RM0005 — Custom Drum Length & Termination Kit

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

RM0005 — 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 Heavy Trencher Umbilical. 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 Heavy Trencher Umbilical)
Core / conductor construction: Triple Redundant FIST Units (3×4 SM) — Three independent laser-welded stainless-steel optical tubes (12 SM fibres)
Primary dielectric / buffering: Screened Twisted Quad (1×1.34 mm² STQ) — Central foil/braid-screened quad for emergency telemetry and control

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 Heavy Trencher Umbilical
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: 1,975 kN Multi-Layer Steel Armour — High-Tensile contra-helical high-tensile galvanized steel wire armour (Ø 58.0 mm)
Minimum bending radius: 15 × OD
Hydrostatic, tensile & crush duty: Water-Blocked Core & Heavy Bedding — Hydrophobic void filler + heavy-duty pressure-resistant inner sheath

Resistance

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

Reference standards

Governing standard: ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical
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: RM0005
Sheath colour & metre marking: Continuous metre-marked black outer finish (1,975 kN Multi-SWA)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard RM0005 subsea & marine configurations

Manufactured to ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical 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
RM0005 Construction Schedule (−30…+80 °C)
RM0005 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
RM0005 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
RM0005 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 Heavy Trencher Umbilical.

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 Heavy Trencher Umbilical)	DC resistance at 20 °C / optical attenuation and outer diameter within ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical)	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 Heavy Trencher Umbilical)	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 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 RM0005 ISO 13628-5 / DNV 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

PDFRM0005 3.3–6.6 kV (1,975 kN) Steel-Armoured Trencher Umbilical – technical datasheet3 sizes · construction, technical data, approvals XLSXRM0005 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 RM0005 (RM0005 3.3–6.6 kV (1,975 kN) Steel-Armoured Trencher Umbilical)?

RM0005 (RM0005 3.3–6.6 kV (1,975 kN) Steel-Armoured Trencher Umbilical) is manufactured in accordance with ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical for 3.6/6 kV service over -30 °C to +80 °C. Its 5-layer construction comprises triple redundant fist units (3×4 sm), screened twisted quad (1×1.34 mm² stq) and 1,975 kn multi-layer steel armour.

What is the minimum bending radius and operating temperature range for RM0005?

The minimum bending radius for RM0005 is 15 × 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 RM0005 arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Triple Redundant FIST Units (3×4 SM) — Three independent laser-welded stainless-steel optical tubes (12 SM fibres); (02) Screened Twisted Quad (1×1.34 mm² STQ) — Central foil/braid-screened quad for emergency telemetry and control; (03) HV Power Conductors (18×10.0 mm²) — 18 stranded copper cores (180 mm² total) with dual-head thin-wall HV insulation; (04) Water-Blocked Core & Heavy Bedding — Hydrophobic void filler + heavy-duty pressure-resistant inner sheath; (05) 1,975 kN Multi-Layer Steel Armour — High-Tensile contra-helical high-tensile galvanized steel wire armour (Ø 58.0 mm).

What factory test certificates are supplied with RM0005?

Every production drum of RM0005 undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per ISO 13628-5 / DNV-ST-E402 Heavy Trencher Umbilical, 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

RM0005 3.3–6.6 kV (1,975 kN) Steel-Armoured Trencher Umbilical

Selected sizes:


Reel & motion:
- Reel type: 
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