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Product

MIL-DTL-22759 ETFE & RG-58 neutrally buoyant ROV tetherMIL-DTL-22759 ETFE600–1,000 V + RG-58SG 0.99 Buoyant PUR

SPE-7589 MIL-DTL-22759 ETFE & RG-58 Neutrally Buoyant ROV TetherMIL-DTL-22759 · 0.6/1 kV · Mil-dtl-22759 etfe & rg-58 neutrally buoyant rov tether

Buoyant Specialty Copper Series (SPE-7589 / 7175 / 7176 / 7604 / 7590 / 7224) MIL-DTL-22759 ETFE-Insulated Aramid-Braided Neutrally Buoyant ROV Tether Cable (MIL-DTL-22759, 0.6/1 kV, -40 °C to +80 °C, min. bend radius 10 × OD).

Water-resistant

EMC screen

Anti-torsion braid

Oil-resistant

Configuration

Order designation: SPE-7589 BUOYANT COPPER Config A (Compact)
Outer Ø ≈: 10.4 mm
Net weight ≈: 155 kg/km
Tensile rating ≈: 4.5 kN
Core / stranding: Stranded tinned Cu (IEC 60228 / ASTM)

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: 0.6/1 kV
Operating temp.: −40…+80 °C
Min. bend radius: 10 × OD
Core / conductor: RG-58 Coax
Outer protection: Aramid
Standard: MIL-DTL-22759

Typical values for this cable type, based on MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is SPE-7589 BUOYANT COPPER 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: SPE-7589 BUOYANT COPPER (MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard) featuring rg-58 coaxial unit, mil-dtl-22759 etfe conductors (2×24 awg) and foamed pur buoyant jacket (code fq) (4-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	RG-58 Coaxial Unit	Stranded tinned copper center + PE dielectric + tinned copper braid shield
2	MIL-DTL-22759 ETFE Conductors (2×24 AWG)	High-reliability tinned copper wires with thin-wall ETFE insulation
3	Aramid Braided Strength Member (Code O)	High-strength aramid braid rated to 1,200 lbs (up to 4,500 lbs in SPE-7590)
4	Foamed PUR Buoyant Jacket (Code FQ)	Closed-cell foamed polyurethane jacket (Ø 14.6 mm, specific gravity 0.99)

SPE-7589 BUOYANT COPPER — Standard Subsea & Marine Execution

Built to MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard with rg-58 coaxial unit and foamed pur buoyant jacket (code fq)

SPE-7589 BUOYANT COPPER — Custom Drum Length & Termination Kit

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

SPE-7589 BUOYANT COPPER — 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 MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 0.6/1 kV (MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard)
Core / conductor construction: RG-58 Coaxial Unit — Stranded tinned copper center + PE dielectric + tinned copper braid shield
Primary dielectric / buffering: MIL-DTL-22759 ETFE Conductors (2×24 AWG) — High-reliability tinned copper wires with thin-wall ETFE insulation

Thermal

Continuous operating temperature: −40…+80 °C (subsea, marine & submersible duty)
Short-circuit / peak thermal rating: Verified thermal stability per MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: Foamed PUR Buoyant Jacket (Code FQ) — Closed-cell foamed polyurethane jacket (Ø 14.6 mm, specific gravity 0.99)
Minimum bending radius: 10 × OD
Hydrostatic, tensile & crush duty: Aramid Braided Strength Member (Code O) — High-strength aramid braid rated to 1,200 lbs (up to 4,500 lbs in SPE-7590)

Resistance

Hydrostatic pressure & water blocking: Engineered for continuous submersion and hydrostatic integrity per MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard
Seawater, oil & chemical resistance: Resistant to seawater hydrolysis, hydraulic oils and abrasion per MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant 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: SPE-7589 BUOYANT COPPER
Sheath colour & metre marking: Continuous metre-marked yellow outer finish (Aramid + Foamed PUR)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard SPE-7589 BUOYANT COPPER subsea & marine configurations

Manufactured to MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant 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
SPE-7589 BUOYANT COPPER Construction Schedule (−40…+80 °C)
SPE-7589 BUOYANT COPPER Config A (Compact)	4×2×24 AWG + 2×18 AWG (or 4C)	Stranded tinned Cu (IEC 60228 / ASTM)	10.4	155	4.5	85
SPE-7589 BUOYANT COPPER Config B (Standard)	4×2×20 AWG + 4×16 AWG (or 8C)	Stranded tinned Cu (IEC 60228 / ASTM)	13.3	265	9.6	110
SPE-7589 BUOYANT COPPER 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

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 MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard.

Electrical, optical & thermal parameters
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	0.6/1 kV (45–100 Ω data)	−40…+80 °C
4×2×20 AWG + 4×16 AWG (or 8C)	10.70	0.6/1 kV (45–100 Ω data)	−40…+80 °C
8×2×20 AWG + 4×12 AWG (or 12C)	5.40	0.6/1 kV (High-Power Hybrid)	−40…+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 (MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard)	DC resistance at 20 °C / optical attenuation and outer diameter within MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard)	Zero dielectric breakdown and verified insulation resistance for 0.6/1 kV rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, water-blocking & mechanical endurance qualification (MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard)	Verified submersion integrity, tensile load and thermal stability across −40…+80 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

MIL-DTL-22759 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 SPE-7589 BUOYANT COPPER MIL-DTL-22759 0.6/1 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

PDFSPE-7589 MIL-DTL-22759 ETFE & RG-58 Neutrally Buoyant ROV Tether – technical datasheet3 sizes · construction, technical data, approvals XLSXSPE-7589 BUOYANT COPPER 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 SPE-7589 BUOYANT COPPER (SPE-7589 MIL-DTL-22759 ETFE & RG-58 Neutrally Buoyant ROV Tether)?

SPE-7589 BUOYANT COPPER (SPE-7589 MIL-DTL-22759 ETFE & RG-58 Neutrally Buoyant ROV Tether) is manufactured in accordance with MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant Tether Standard for 0.6/1 kV service over -40 °C to +80 °C. Its 4-layer construction comprises rg-58 coaxial unit, mil-dtl-22759 etfe conductors (2×24 awg) and foamed pur buoyant jacket (code fq).

What is the minimum bending radius and operating temperature range for SPE-7589 BUOYANT COPPER?

The minimum bending radius for SPE-7589 BUOYANT COPPER is 10 × OD across its continuous operating temperature range of -40 °C to +80 °C, ensuring mechanical and dielectric reliability in subsea, marine and submersible service.

How are the concentric layers of SPE-7589 BUOYANT COPPER arranged from inside to outside?

From inside to outside, the construction sequence is: (01) RG-58 Coaxial Unit — Stranded tinned copper center + PE dielectric + tinned copper braid shield; (02) MIL-DTL-22759 ETFE Conductors (2×24 AWG) — High-reliability tinned copper wires with thin-wall ETFE insulation; (03) Aramid Braided Strength Member (Code O) — High-strength aramid braid rated to 1,200 lbs (up to 4,500 lbs in SPE-7590); (04) Foamed PUR Buoyant Jacket (Code FQ) — Closed-cell foamed polyurethane jacket (Ø 14.6 mm, specific gravity 0.99).

What factory test certificates are supplied with SPE-7589 BUOYANT COPPER?

Every production drum of SPE-7589 BUOYANT COPPER undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per MIL-DTL-22759 ETFE / RG-58 Subsea Buoyant 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

SPE-7589 BUOYANT COPPER SPE-7589 MIL-DTL-22759 ETFE & RG-58 Neutrally Buoyant ROV Tether

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Reel & motion:
- Reel type: 
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