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Product

marine & offshore instrumentation cable BS 7917 / UKOOA150/250 V (-40 to +90 °C)Orange Type SW4 Fire-Safe Jacket

CMS1S / CMT1S / CMU1S 250 V BS 7917 UKOOA Fire-Resistant Offshore Instrumentation CableBS 7917 / UKOOA — 150/250 V — -40 to +90 °C Marine & Offshore Cable

CMS1S / CMT1S / CMU1S 250 V BS 7917 UKOOA Fire-Resistant Offshore Instrumentation Cable (BS 7917 / UKOOA) engineered for 150/250 V service across -40 to +90 °C (min. bend radius 8 × OD).

Flame-retardant

EMC screen

Oil-resistant

Approved

Configuration

Order designation: CMS1S 2×2×0.75 mm²
Outer Ø ≈: 11.4 mm
Net weight ≈: 195 kg/km
Tensile rating ≈: 1.2 kN
Core / stranding: Stranded Cu/SnCu (IEC 60228 Class 2/5)

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
Operating temp.: −40…+90 °C
Min. bend radius: 8 × OD
Core / conductor: Mica + GP4 EPR T
Outer protection: Orange Type SW4
Standard: BS 7917 / UKOOA

Typical values for this cable type, based on BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series) — confirmed in the datasheet and quotation for your order.

Application fit

Is CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) right for your machine?

CMS1S / CMT1S / CMU1S 250 V BS 7917 UKOOA Fire-Resistant Offshore Instrumentation Cable (BS 7917 / UKOOA) engineered for 150/250 V service across -40 to +90 °C (min. bend radius 8 × OD).

Fixed installation

Suitable

Individually and/or collectively screened pairs, triads and quads reject electrostatic and electromagnetic interference.

Offshore platform & shipboard deck trays

Suitable

SHF1/SHF2 or IEEE 1580 Type P outer sheath resists drilling mud, 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 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 machinesBuilding & Fire SafetyOffshore DCS, ESD & Fire-Gas SystemsShipboard Bridge & Engine Room AutomationDrilling Rig Instrumentation & Mud LoggingNaval Radar, Sonar & Combat Switchboards

Construction

Layer by layer

Shown: CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) (BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series)) featuring mica + gp4 epr triads (3×3×1.0 mm²), individual & collective foil screen (mt) and orange type sw4 fire-safe jacket (4-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Mica + GP4 EPR Triads (3×3×1.0 mm²)	Tinned copper conductors with mica fire tape and Black, White, Red EPR
2	Individual & Collective Foil Screen (MT)	Al/PET foil tape + tinned copper drain wire on each triad and overall
3	Type SW4 Inner Sheath & GSWB Armour	Halogen-free SW4 bedding + galvanized steel wire braid armour
4	Orange Type SW4 Fire-Safe Jacket	BS 7917 950 °C / 3h fire-resistant offshore instrumentation sheath

CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) — Standard Shipboard & Offshore Execution

Built to BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series) with mica + gp4 epr triads (3×3×1.0 mm²) and orange type sw4 fire-safe jacket

CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) — Custom Drum Length & Gland Kit

Available in custom continuous shipboard/offshore drum lengths or with marine EMC cable glands

CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) — Class & Routine Test Certified

Supplied with EN 10204 3.1 routine dielectric, conductor resistance & flame/fire test report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 150/250 V (BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series))
Core / conductor construction: Mica + GP4 EPR Triads (3×3×1.0 mm²) — Tinned copper conductors with mica fire tape and Black, White, Red EPR
Primary dielectric / buffering: Individual & Collective Foil Screen (MT) — Al/PET foil tape + tinned copper drain wire on each triad and overall

Thermal

Continuous operating temperature: −40…+90 °C (shipboard & offshore duty)
Short-circuit / peak thermal rating: Verified thermal stability per BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series)
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: Orange Type SW4 Fire-Safe Jacket — BS 7917 950 °C / 3h fire-resistant offshore instrumentation sheath
Minimum bending radius: 8 × OD
Armour, screen & mechanical duty: Type SW4 Inner Sheath & GSWB Armour — Halogen-free SW4 bedding + galvanized steel wire braid armour

Resistance

Flame, fire & smoke performance: Qualified for marine flame-retardance and low-smoke zero-halogen / fire safety per BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series)
Oil, drilling mud & seawater resistance: Resistant to marine fuel/lube oils, salt mist and offshore fluids per BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series)
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series)
Environmental & test standards: IEC 60228 / IEC 60332-3-22 / IEC 60754 / IEC 61034 / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA)
Sheath colour & metre marking: Continuous metre-marked black outer finish (Orange Type SW4 )
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) shipboard & offshore configurations

Manufactured to BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series) for shipboard, offshore platform, drilling rig 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
CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) Construction Schedule (−40…+90 °C)
CMS1S 2×2×0.75 mm²	2 × 2 × 0.75 mm² (2Pr)	Stranded Cu/SnCu (IEC 60228 Class 2/5)	11.4	195	1.2	70
CMS1S 4×2×1.0 mm²	4 × 2 × 1.0 mm² (4Pr)	Stranded Cu/SnCu (IEC 60228 Class 2/5)	15.6	365	2.4	95
CMS1S 8×2×1.5 mm²	8 × 2 × 1.5 mm² (8Pr)	Stranded Cu/SnCu (IEC 60228 Class 2/5)	22.8	760	4.8	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 BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series).

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
2 × 2 × 0.75 mm² (2Pr)	26.00	150/250 V (≤60 nF/km)	−40…+90 °C
4 × 2 × 1.0 mm² (4Pr)	19.50	150/250 V (≤65 nF/km)	−40…+90 °C
8 × 2 × 1.5 mm² (8Pr)	13.30	150/250 V (≤75 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, continuity & dimensional verification (BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series))	DC resistance at 20 °C / optical attenuation and outer diameter within BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series) tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series))	Zero dielectric breakdown and verified insulation resistance for 150/250 V rating	Every manufactured drum length
Sample tests
Flame, fire integrity, oil/mud & mechanical qualification (BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series))	Verified flame/fire performance, fluid resistance 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

BS 7917 / UKOOA 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 CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) BS 7917 / UKOOA 150/250 V CE

Delivery form: Heavy-duty export fumigated wooden drums or steel marine reels
Standard lengths: 500 m, 1,000 m or custom continuous shipboard/offshore 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

PDFCMS1S / CMT1S / CMU1S 250 V BS 7917 UKOOA Fire-Resistant Offshore Inst – technical datasheet3 sizes · construction, technical data, approvals XLSXCMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) 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 CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) (CMS1S / CMT1S / CMU1S 250 V BS 7917 UKOOA Fire-Resistant Offshore Instrumentation Cable)?

CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) (CMS1S / CMT1S / CMU1S 250 V BS 7917 UKOOA Fire-Resistant Offshore Instrumentation Cable) is manufactured in accordance with BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series) for 150/250 V service over -40 to +90 °C. Its 4-layer construction comprises mica + gp4 epr triads (3×3×1.0 mm²), individual & collective foil screen (mt) and orange type sw4 fire-safe jacket.

What is the minimum bending radius and operating temperature range for CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA)?

The minimum bending radius for CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) is 8 × OD across its continuous operating temperature range of -40 to +90 °C, ensuring mechanical and dielectric reliability in shipboard and offshore service.

How are the concentric layers of CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Mica + GP4 EPR Triads (3×3×1.0 mm²) — Tinned copper conductors with mica fire tape and Black, White, Red EPR; (02) Individual & Collective Foil Screen (MT) — Al/PET foil tape + tinned copper drain wire on each triad and overall; (03) Type SW4 Inner Sheath & GSWB Armour — Halogen-free SW4 bedding + galvanized steel wire braid armour; (04) Orange Type SW4 Fire-Safe Jacket — BS 7917 950 °C / 3h fire-resistant offshore instrumentation sheath.

What factory test certificates are supplied with CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA)?

Every production drum of CMS1S / CMT1S / CMU1S 250 V (BS 7917 UKOOA) undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per BS 7917:1999 & UKOOA Code CMS1S / CMT1S / CMU1S (GL/GM Series), 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

CMS1S / CMT1S / CMU1S 250 V BS 7917 UKOOA Fire-Resistant Offshore Instrumentation Cable

Selected sizes:


Reel & motion:
- Reel type: 
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- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
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- Destination country: 
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