1 / 5

Product

marine & offshore instrumentation cable NEK TS 606 / IEC 60092-376 BFOU(i)150/250 V (300 V) (-40 to +90 °C)SHF2-MUD Fire & Mud-Resistant Outer

BFOU(i) (TCWB) & BFCU(i) (GSWB) 150/250 V NEK TS 606 Fire- & Mud-Resistant Offshore Instrument CableNEK TS 606 / IEC 60092-376 BFOU(i) — 150/250 V (300 V) — -40 to +90 °C Subsea & Offshore Cable

BFOU(i) (TCWB) & BFCU(i) (GSWB) 150/250 V NEK TS 606 Fire- & Mud-Resistant Offshore Instrument Cable (NEK TS 606 / IEC 60092-376 BFOU(i)) engineered for 150/250 V (300 V) service across -40 to +90 °C (min. bend radius 8 × OD).

Water-resistant

EMC screen

Oil-resistant

Approved

Configuration

Order designation: BFOU 4Pr / 8Ch
Outer Ø ≈: 11.2 mm
Net weight ≈: 175 kg/km
Tensile rating ≈: 12.5 kN
Core / stranding: Stranded SnCu + Foil/Braid + 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: 150/250 V (300 V
Operating temp.: −40…+90 °C
Min. bend radius: 8 × OD
Core / conductor: Mica + EPR/XLPE
Outer protection: SHF2-MUD Fire &
Standard: NEK TS 606 / IEC

Typical values for this cable type, based on NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification — confirmed in the datasheet and quotation for your order.

Application fit

Is BFOU(i) / BFCU(i) 250V right for your machine?

Fixed installation

Suitable

Individually and/or collectively screened pairs and cores reject electrostatic and electromagnetic interference in high-EMC marine zones.

Offshore platform & shipboard deck trays

Suitable

SHF2-MUD or IEEE 1580 Type P outer sheath resists drilling mud, ester fluids, hydrocarbons, salt spray and UV exposure.

Switchgear & control cabinet wiring

Suitable

Compact twisted pairs and numbered cores route cleanly into DCS/PLC cabinets, Ex-i barriers, sonar racks and bridge consoles.

Drilling jumbo & rotary mast feed

Suitable

Tinned copper, bronze or galvanized steel wire braid armour protects signal integrity in hazardous offshore zones.

Festoon & line chain

Not suitable

Fixed shipboard and offshore instrumentation cable is not intended for high-speed crane festoon loops.

Use (N)3GRDC5G-J/O Festoon Cable

Typical machinesMarine & Offshore CableOffshore DCS, ESD & Fire-Gas SystemsDrilling Rig Instrumentation & Mud LoggingNaval Sonar, Radar & Combat SwitchboardsShipboard Bridge & Engine Room Automation

Construction

Layer by layer

Shown: BFOU(i) / BFCU(i) 250V (NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification) featuring mica + epr/xlpe twisted pairs (0.75-2.5 mm²), cu/pet or al/pet individual & collective screen and shf2-mud fire & mud-resistant outer jacket (4-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Mica + EPR/XLPE Twisted Pairs (0.75-2.5	Tinned copper conductors with mica fire barrier and EPR/XLPE insulation
2	Cu/PET or Al/PET Individual & Collective	Metallic foil tape + tinned copper drain wire on each pair/triad
3	TCWB (BFOU) / GSWB (BFCU) Braid Armour	Tinned copper wire braid (O) or galvanized steel wire braid (C)
4	SHF2-MUD Fire & Mud-Resistant Outer Jack	Cross-linked low-smoke zero-halogen mud-resistant thermoset sheath

BFOU(i) / BFCU(i) 250V — Standard Subsea & Offshore Execution

Built to NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification with mica + epr/xlpe twisted pairs (0.75-2.5 mm²) and shf2-mud fire & mud-resistant outer jacket

BFOU(i) / BFCU(i) 250V — Custom Continuous Winch / Reel Length

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

BFOU(i) / BFCU(i) 250V — 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 NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 150/250 V (300 V) (NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification)
Core / conductor construction: Mica + EPR/XLPE Twisted Pairs (0.75-2.5 mm²) — Tinned copper conductors with mica fire barrier and EPR/XLPE insulation
Primary dielectric / buffering: Cu/PET or Al/PET Individual & Collective Screen — Metallic foil tape + tinned copper drain wire on each pair/triad

Thermal

Continuous operating temperature: −40…+90 °C (subsea & offshore duty)
Hydrostatic & thermal stability: Verified thermal and hydrostatic stability per NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification
Storage & transport temperature: −40…+80 °C on export wooden/steel winch reel

Mechanical

Outer protection / armouring: SHF2-MUD Fire & Mud-Resistant Outer Jacket — Cross-linked low-smoke zero-halogen mud-resistant thermoset sheath
Minimum bending radius: 8 × OD
Armour, strength member & mechanical duty: TCWB (BFOU) / GSWB (BFCU) Braid Armour — Tinned copper wire braid (O) or galvanized steel wire braid (C)

Resistance

Seawater, hydrostatic & hydrolysis resistance: Engineered for continuous seawater immersion, pressure cycling and hydrolysis resistance per NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification
Oil, drilling mud & abrasion resistance: Resistant to marine hydraulic oils, salt mist, winch sheave wear and seabed abrasion per NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD 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: BFOU(i) / BFCU(i) 250V
Sheath colour & metre marking: Continuous metre-marked black outer finish (SHF2-MUD Fire & )
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard BFOU(i) / BFCU(i) 250V subsea & offshore configurations

Manufactured to NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD 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
BFOU(i) / BFCU(i) 250V Construction Schedule (−40…+90 °C)
BFOU 4Pr / 8Ch	4×2×24–20 AWG (or 8-Ch Array)	Stranded SnCu + Foil/Braid + Aramid	11.2	175	12.5	90
BFOU 8Pr / 16Ch	8×2×22–18 AWG (or 16-Ch Array)	Stranded SnCu + Foil/Braid + Aramid	16.4	340	24.0	130
BFOU 16Pr / 24Ch	16×2×18–16 AWG (or 24-Ch Array)	Stranded SnCu + Foil/Braid + Aramid	24.8	690	35.0	195

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 NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
4×2×24–20 AWG (or 8-Ch Array)	42.00	150/250 V (300 V) (≤55 nF/km)	−40…+90 °C
8×2×22–18 AWG (or 16-Ch Array)	26.00	150/250 V (300 V) (≤60 nF/km)	−40…+90 °C
16×2×18–16 AWG (or 24-Ch Array)	15.20	150/250 V (300 V) (≤65 nF/km)	−40…+90 °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 (NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification)	DC resistance at 20 °C / optical attenuation and outer diameter within NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification)	Zero dielectric breakdown and verified insulation resistance for 150/250 V (300 V) rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, tensile breaking load & water-blocking qualification (NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification)	Verified subsea pressure integrity, torque-balanced tensile performance and thermal stability across −40…+90 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

NEK TS 606 / IEC 60092-376 BFOU(i) 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 BFOU(i) / BFCU(i) 250V NEK TS 606 / IEC 60092-376 BFOU(i) 150/250 V (300 V) 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

PDFBFOU(i) (TCWB) & BFCU(i) (GSWB) 150/250 V NEK TS 606 Fire- & Mud-Resis – technical datasheet3 sizes · construction, technical data, approvals XLSXBFOU(i) / BFCU(i) 250V 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 BFOU(i) / BFCU(i) 250V (BFOU(i) (TCWB) & BFCU(i) (GSWB) 150/250 V NEK TS 606 Fire- & Mud-Resistant Offshore Instrument Cable)?

BFOU(i) / BFCU(i) 250V (BFOU(i) (TCWB) & BFCU(i) (GSWB) 150/250 V NEK TS 606 Fire- & Mud-Resistant Offshore Instrument Cable) is manufactured in accordance with NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification for 150/250 V (300 V) service over -40 to +90 °C. Its 4-layer construction comprises mica + epr/xlpe twisted pairs (0.75-2.5 mm²), cu/pet or al/pet individual & collective screen and shf2-mud fire & mud-resistant outer jacket.

What is the minimum bending radius and operating temperature range for BFOU(i) / BFCU(i) 250V?

The minimum bending radius for BFOU(i) / BFCU(i) 250V is 8 × OD across its continuous operating temperature range of -40 to +90 °C, ensuring mechanical, hydrostatic and dielectric reliability in subsea and offshore service.

How are the concentric layers of BFOU(i) / BFCU(i) 250V arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Mica + EPR/XLPE Twisted Pairs (0.75-2.5 mm²) — Tinned copper conductors with mica fire barrier and EPR/XLPE insulation; (02) Cu/PET or Al/PET Individual & Collective Screen — Metallic foil tape + tinned copper drain wire on each pair/triad; (03) TCWB (BFOU) / GSWB (BFCU) Braid Armour — Tinned copper wire braid (O) or galvanized steel wire braid (C); (04) SHF2-MUD Fire & Mud-Resistant Outer Jacket — Cross-linked low-smoke zero-halogen mud-resistant thermoset sheath.

What factory test certificates are supplied with BFOU(i) / BFCU(i) 250V?

Every production drum of BFOU(i) / BFCU(i) 250V undergoes routine conductor resistance/OTDR continuity, high-voltage dielectric and dimensional testing per NEK TS 606 Code S3/S7 BFOU(i) & BFCU(i) 150/250 V IEC 60331 Fire-Resistant SHF2-MUD Specification, and is delivered with an EN 10204 3.1 factory test certificate.

Request a quote

Get an engineering quote for BFOU(i) / BFCU(i) 250V

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

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

Reel typeDrum core diameter (mm)Cable length on drum (m)Travel speed (m/min)Max. accelerationCycles per hourLength and quantityAmbient temperatureExposure (outdoor, water, oil, abrasion)Destination countryEquipment and operating conditions

03Message for our engineers

BFOU(i) (TCWB) & BFCU(i) (GSWB) 150/250 V NEK TS 606 Fire- & Mud-Resistant Offshore Instrument Cable

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:

Send via WhatsApp