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Product

BS 6708 Type 830 11 kV excavator trailing cable BS 6708 Type 8306.35/11 kV EPRComposite Phase Braid

BS 6708 Type 830 6.35/11 kV Excavator Trailing CableBS 6708 Type 830 6.35/11 kV screened medium-voltage trailing cable for open-cast excavators, electric shovels and draglines, with Class 5 tinned copper phases, EPR insulation, composite copper/nylon phase braids, central earth and PCP sheath.

Engineered for underground mining, open-cast excavation, shaft infrastructure and heavy industrial service per BS 6708 Type 830 / BS EN 60228 across -25 to +90 °C.

EMC screen

Oil-resistant

Flame-retardant

Outdoor & humid

Configuration

Order designation: BS 6708 Type 830 3×120 + 1×16 mm²
Outer Ø ≈: 75.8 mm
Net weight ≈: 8,620 kg/km
Tensile rating ≈: 54.0 kN
Core / stranding: Class 5 tinned Cu

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: 6.35/11 kV
Operating temp.: -25 to +90 °C
Min. bend radius: 10 × OD
Core / conductor: 3×70–185 mm² Cu
Outer protection: Heavy-Duty PCP
Standard: BS 6708 T830

Typical values for this cable type, based on BS 6708 Type 830 / BS EN 60228 — confirmed in the datasheet and quotation for your order.

Application fit

Is BS 6708 Type 830 right for your machine?

Engineered for underground mining, open-cast excavation, shaft infrastructure and heavy industrial service per BS 6708 Type 830 / BS EN 60228 across -25 to +90 °C.

Trailing & towing

Suitable

Engineered for heavy-duty mobile mining and industrial trailing duty per BS 6708 Type 830 / BS EN 60228.

Mine roadway & tunnel wall hangers

Suitable

Suitable for underground coal/hard-rock roadways, shuttle cars and quarry feeders (-25 to +90 °C).

Fixed installation

Suitable

Can be installed on cable trays, hangers and mobile skid interconnections within 10 × OD.

Festoon & line chain

Not suitable

Not optimized for high-speed overhead crane C-track festoon loops; select a dedicated festoon cable.

NGFLGÖU Flat Rubber Festoon Cable

Typical machinesMining & TunnellingUnderground Coal & Hard-Rock MiningOpen-Cast Excavators, Draglines & ShovelsVertical Mine Shafts, Hoists & BoreholesTunneling, Mineral Processing & Slurry Plants

Construction

Layer by layer

Shown: BS 6708 Type 830 (BS 6708 Type 830 / BS EN 60228) featuring phase conductors (3×120 mm²), 6.35/11 kv epr insulation (7.5 mm) and heavy-duty outer sheath (pcp) (5-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Phase Conductors (3×120 mm²)	IEC 60228 Class 5 flexible annealed tinned copper + semicon screen
2	6.35/11 kV EPR Insulation (7.5 mm)	Thick high-dielectric EPR phase insulation (Red, Yellow & Brown)
3	Composite Phase Braid Screen	Tinned copper wire and nylon fibre composite braid over each core
4	Central Earth Conductor (1×16 mm²)	Uninsulated flexible tinned copper conductor in central interstice
5	Heavy-Duty Outer Sheath (PCP)	Black tear-, oil- and weather-resistant polychloroprene rubber sheath

BS 6708 Type 830 — Standard Mining Execution

Built to BS 6708 Type 830 / BS EN 60228 with phase conductors (3×120 mm²) and heavy-duty outer sheath (pcp)

BS 6708 Type 830 — Custom Drum Length & Gland Kit

Available in custom shaft/roadway drum lengths or pre-terminated assemblies

BS 6708 Type 830 — Routine & Flame Test Certified

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

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on BS 6708 Type 830 / BS EN 60228. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 6.35/11 kV (BS 6708 Type 830 / BS EN 60228)
Core / conductor construction: Phase Conductors (3×120 mm²) — IEC 60228 Class 5 flexible annealed tinned copper + semicon screen
Primary dielectric / buffering: 6.35/11 kV EPR Insulation (7.5 mm) — Thick high-dielectric EPR phase insulation (Red, Yellow & Brown)

Thermal

Continuous operating temperature: -25 to +90 °C (mining & industrial service)
Short-circuit / peak thermal rating: Verified thermal stability per BS 6708 Type 830 / BS EN 60228
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: Heavy-Duty Outer Sheath (PCP) — Black tear-, oil- and weather-resistant polychloroprene rubber sheath
Minimum bending radius: 10 × OD
Crush, impact & abrasion duty: Heavy-duty mining rock-cut, impact and tensile protection per BS 6708 Type 830 / BS EN 60228

Resistance

Flame retardancy & mine fire safety: Self-extinguishing / flame-retardant mining jacket per BS 6708 Type 830 / BS EN 60228
Mine water, oil & chemical resistance: Resistant to acidic mine water, hydraulic oils and abrasion per BS 6708 Type 830 / BS EN 60228
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: BS 6708 Type 830 / BS EN 60228
Flame & environmental test standards: IEC 60332 / MSHA / EN 60794 / IEC 60228
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: BS 6708 Type 830
Sheath colour & metre marking: Continuous metre-marked black mining outer sheath
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard BS 6708 Type 830 mining & industrial configurations

Manufactured to BS 6708 Type 830 / BS EN 60228 for underground mining, open-cast excavation, shaft and heavy industrial systems.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Tensile rating kN ≈	Min. bend R mm
BS 6708 Type 830 Construction Schedule (-25 to +90 °C)
BS 6708 Type 830 3×95 + 1×16 mm²	3 × 95 mm² + 1 × 16 mm² (E)	Class 5 tinned Cu	71.5	7,450	42.5	715
BS 6708 Type 830 3×120 + 1×16 mm²	3 × 120 mm² + 1 × 16 mm² (E)	Class 5 tinned Cu	75.8	8,620	54.0	760
BS 6708 Type 830 3×150 + 1×25 mm²	3 × 150 mm² + 1 × 25 mm² (E)	Class 5 tinned Cu	81.2	10,180	67.5	815

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 6708 Type 830 / BS EN 60228.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
3 × 95 mm² + 1 × 16 mm² (E)	0.21	6.35/11 kV (265 A)	-25 to +90 °C
3 × 120 mm² + 1 × 16 mm² (E)	0.16	6.35/11 kV (305 A)	-25 to +90 °C
3 × 150 mm² + 1 × 25 mm² (E)	0.13	6.35/11 kV (350 A)	-25 to +90 °C

Every production length undergoes routine conductor DC resistance, high-voltage Spark/AC 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 6708 Type 830 / BS EN 60228)	DC resistance at 20 °C / optical attenuation and outer diameter within BS 6708 Type 830 / BS EN 60228 tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (BS 6708 Type 830 / BS EN 60228)	Zero dielectric breakdown and verified insulation resistance over full production length	Every manufactured drum length
Sample tests
Flame propagation, mechanical crush & thermal ageing qualification (BS 6708 Type 830 / BS EN 60228)	Verified flame retardancy, mechanical integrity and thermal endurance across -25 to +90 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

BS 6708 T830 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 BS 6708 Type 830 BS 6708 T830 6.35/11 kV CE

Delivery form: Heavy-duty export fumigated wooden drums or steel mine reels
Standard lengths: 500 m, 1,000 m or custom continuous shaft/reeling 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

PDFBS 6708 Type 830 6.35/11 kV Excavator Trailing Cable – technical datasheet3 sizes · construction, technical data, approvals XLSXBS 6708 Type 830 spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-24
Updated: 2026-10-24

FAQ

Questions engineers ask first

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

What governing standard and construction define BS 6708 Type 830 (BS 6708 Type 830 6.35/11 kV Excavator Trailing Cable)?

BS 6708 Type 830 (BS 6708 Type 830 6.35/11 kV Excavator Trailing Cable) is manufactured in accordance with BS 6708 Type 830 / BS EN 60228 for 6.35/11 kV duty over -25 to +90 °C. Its 5-layer construction comprises Phase Conductors (3×120 mm²), 6.35/11 kV EPR Insulation (7.5 mm) and Heavy-Duty Outer Sheath (PCP).

What is the minimum bending radius and operating temperature range for BS 6708 Type 830?

The minimum bending radius for BS 6708 Type 830 is 10 × OD across its continuous operating temperature range of -25 to +90 °C, ensuring mechanical and dielectric reliability in mining and heavy industrial service.

How are the concentric layers of BS 6708 Type 830 arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Phase Conductors (3×120 mm²) (IEC 60228 Class 5 flexible annealed tinned copper + semicon screen); (02) 6.35/11 kV EPR Insulation (7.5 mm) (Thick high-dielectric EPR phase insulation (Red, Yellow & Brown)); (03) Composite Phase Braid Screen (Tinned copper wire and nylon fibre composite braid over each core); (04) Central Earth Conductor (1×16 mm²) (Uninsulated flexible tinned copper conductor in central interstice); (05) Heavy-Duty Outer Sheath (PCP) (Black tear-, oil- and weather-resistant polychloroprene rubber sheath).

What factory test certificates are supplied with BS 6708 Type 830?

Every production drum of BS 6708 Type 830 undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per BS 6708 Type 830 / BS EN 60228, 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

BS 6708 Type 830 6.35/11 kV Excavator Trailing Cable

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