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Product

Mining trailing & reeling cablesBS 6708640/1,100 V · Types 62 / 63 / 64Screened + Pliable Wire Armour

BS 6708 Type 62, Type 63 & Type 64 Screened Armoured Mining Cable640/1,100 V 2-, 3- & 4-core × 4 mm² screened pliable wire-armoured cables

640/1,100 V individually screened and pliable wire-armoured 4 mm² mining cables to BS 6708:1998 in 2-core (Type 62), 3-core (Type 63) and 4-core (Type 64) constructions for coalface lighting, remote control, signalling and auxiliary power.

EMC screen

Outdoor & humid

Oil-resistant

Flame-retardant

Preview configuration

Order designation: Type 63 · 3×4
Max. OD: 27.3 mm
Min. bend R: 280 mm
Mass ≈: 1,230 kg/km
Cont. current: 28 A

Check against my drum All sizes (3)

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Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 640/1,100 V
Core layout: 2/3/4 × 4 mm²
Overall Ø: 23.9–29.9 mm
Max. conductor T: +90 °C
Min. operating T: −25 °C
Min. bend radius: 270–290 mm

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

Application fit

Is BS 6708 Type 62 / 63 / 64 right for your machine?

Pliable wire-armoured underground mining control, auxiliary power and restraint cable to BS 6708 Types 62, 63 & 64 (640/1100 V).

Mine roadway & tunnel wall hangers

Suitable

Primary duty — roadway hanger suspension linking gate-end panels, pumps and conveyor drives.

Fixed installation

Suitable

Armoured protection against roof-bolting debris and rock fall in underground headings.

Trailing & towing

With conditions

Semi-mobile roadway repositioning with advancing conveyor tail-ends and stage loaders.

Longwall shearer & Bretby handler

Not suitable

Not intended for continuous dynamic bending inside shearer cable handlers.

Use BS 6708 Type 7 / 14

Motorised monospiral reel

Not suitable

Wire-armoured construction is unsuitable for continuous drum reeling.

Use (N)SHTÖU Reeling

Typical machinesLongwall coalface lighting systemsGate-end remote control & pilot linksArmoured conveyor trip-wire & signallingUnderground auxiliary power (640/1,100 V)Deep-mine gassy workingsQuarry control & interlock feeders

Construction

Layer by layer

Two (Type 62), three (Type 63) or four (Type 64) 4 mm² (56/0.30 mm) Class 5 tinned copper conductors, each insulated with EPR (Ø 4.80 mm), wrapped with coloured textile identification tape and individually screened with a composite tinned-copper/nylon braid (Ø 6.00 mm), are laid up in contact around an elastomeric cradle, covered with an extruded rubber inner sheath (Ø 16.2 to 20.7 mm), armoured with galvanized steel pliable wire armour and sheathed in heavy-duty black chloroprene (PCP).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	4 mm² flexible conductors	Electrolytic stranded tinned copper wire, IEC 60228 Class 5 (56/0.30 mm, Ø 2.60 mm)IEC 60228 Class 5
2	Core insulation	EPR (ethylene-propylene rubber) to Ø 4.80 mm over each 4 mm² conductorBS 7655 / BS 6708
3	Identification tape	Coloured textile tape applied over EPR insulation for core identificationCore identification
4	Individual composite screens	Tinned copper and nylon braided screen over every core (Ø 6.00 mm; 2.8 to 5.5 Ω/km combined parallel resistance)Composite Cu/nylon braid
5	Elastomeric cradle	Central elastomeric cradle around which the screened cores are laid up in contactCradle centre
6	Inner bedding sheath	Rubber-based inner bedding sheath extruded over laid-up screened cores (Ø 16.2 to 20.7 mm)Armour bedding
7	Pliable wire armour (PWA)	Galvanized steel pliable wire armour (4.16 to 4.91 Ω/km DC resistance at 20 °C)BS 6708 PWA
8	Outer sheath	Heavy-duty flame-retardant polychloroprene (chloroprene / PCP) outer sheath, blackBS 6708 / BS 7655 EM2

BS 6708 Type 62 · 2×4 mm²

2 individually screened 4 mm² cores + rubber inner sheath + galvanized steel PWA + PCP outer sheath (23.9–26.4 mm OD, 1,080 kg/km)

BS 6708 Type 63 · 3×4 mm²

3 individually screened 4 mm² cores + rubber inner sheath + galvanized steel PWA + PCP outer sheath (24.8–27.3 mm OD, 1,230 kg/km)

BS 6708 Type 64 · 4×4 mm²

4 individually screened 4 mm² cores + rubber inner sheath + galvanized steel PWA + PCP outer sheath (26.4–29.9 mm OD, 1,400 kg/km)

Technical data

Ratings & operating limits

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

Electrical

Rated voltage (U0/U): 640/1,100 V AC (U0/U)
AC test voltage: 2.5 kV AC dielectric test on all screened cores
Current rating (25 °C): 28 A continuous current rating at 25 °C ambient (4 mm² Class 5 tinned copper)
Conductor, screen & armour DC res.: 5.09 Ω/km max. conductor DC res. · 5.5 / 3.9 / 2.8 Ω/km max. parallel screen res. (Types 62/63/64) · 4.91 / 4.63 / 4.16 Ω/km max. armour res. at 20 °C
Reactance, IR & voltage drop: 0.119 Ω/km (50 Hz) / 0.143 Ω/km (60 Hz) reactance · ≥ 590 MΩ·km insulation resistance at 20 °C · 12.38 mV/A/m (Type 62) / 10.72 mV/A/m (Types 63/64) voltage drop

Thermal

Max. conductor temperature: +90 °C maximum continuous conductor temperature (EPR insulation)
Operating temperature range: −25 °C to +85 °C ambient installation / service range (current ratings referenced at 25 °C)

Mechanical

Minimum bending radius: 270 mm (Type 62), 280 mm (Type 63), 290 mm (Type 64) minimum bending radius (~10 × maximum OD)
Maximum pulling tension: 48 kgf (Type 62 2×4 mm²), 72 kgf (Type 63 3×4 mm²), 96 kgf (Type 64 4×4 mm²) maximum pulling tension
Screens, bedding & wire armour: Individually composite copper/nylon braided screened cores (Ø 6.00 mm) + rubber inner bedding sheath (Ø 16.2–20.7 mm) + galvanized steel pliable wire armour + heavy-duty PCP outer sheath

Resistance

Flame retardance: Flame retardant polychloroprene outer sheath to BS 6708 / BS EN 60332-1-2
Crush & mine environment: Dual metallic protection (individual core screens + pliable steel wire armour) resists roadway rockfall, crushing, oil and moisture

Reference standards

Standards compliance: BS 6708 (Types 62, 63, 64); IEC 60228 Class 5; BS 7655
Designated duty: 640/1,100 V coalface lighting, remote control, interlock, signalling and auxiliary power circuits

Identification

Core identification: Coloured textile separator tape over EPR core insulation beneath individual composite tinned-copper/nylon braid screens
Outer sheath: Heavy-duty black chloroprene (PCP) outer sheath

Sizes

BS 6708 Type 62 (2×4 mm²), Type 63 (3×4 mm²) & Type 64 (4×4 mm²) specifications

Complete dimensional, screen, armour, weight, current rating and impedance parameters.

Dimensions, armour & electrical
Type · nominal CSA mm²	Conductor stranding	Cond. Ø mm	Insul. Ø mm	Screen Ø mm	Inner sh. Ø mm	Min. OD mm	Max. OD mm	Min. R mm	Max. pull kgf	Mass ≈ kg/km	Cu wt kg/km	Current (25 °C) A	Cond. res. Ω/km	Screens res. Ω/km	Armour res. Ω/km	V-drop mV/A/m
Type 62 · 2×4	56/0.30	2.60	4.80	6.00	16.2–18.2	23.9	26.4	270	48	1,080	132	28	5.09	5.5	4.91	12.38
Type 63 · 3×4	56/0.30	2.60	4.80	6.00	17.1–19.1	24.8	27.3	280	72	1,230	200	28	5.09	3.9	4.63	10.72
Type 64 · 4×4	56/0.30	2.60	4.80	6.00	18.7–20.7	26.4	29.9	290	96	1,400	264	28	5.09	2.8	4.16	10.72

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
All three types have a reactance of 0.119 Ω/km at 50 Hz (0.143 Ω/km at 60 Hz) and a minimum insulation resistance of 590 MΩ·km at 20 °C.

Reel check

Will it fit your machine?

A first screen using datasheet values. Engineering confirms drum geometry, acceleration and tension with your quotation.

Cable sizeDrum core diameter (mm)

Cable length on drum (m)

Enter your drum core diameterMinimum for this size is about 546 mm

Minimum bending radius: 273 mm
Min. drum core diameter: ≈ 546 mm
Cable weight on drum: 123.0 kg
Outer diameter: 27.3 mm

Indicative only: based on the datasheet outer diameter and 10 × OD bending radius. Current derating for wound layers per DIN VDE 0298-4 is assessed separately.

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
AC high-voltage dielectric test	2.5 kV AC applied between each 4 mm² conductor and its individual composite screen/armour	Every drum
Conductor, screen & armour DC resistance check	≤ 5.09 Ω/km conductor; ≤ 5.5 / 3.9 / 2.8 Ω/km parallel screens; ≤ 4.91 / 4.63 / 4.16 Ω/km armour at 20 °C	Every drum
Sample tests
Insulation resistance verification	≥ 590 MΩ·km at 20 °C on all EPR-insulated 4 mm² cores	Every drum
Flame retardance test	Self-extinguishing heavy-duty chloroprene outer sheath per BS 6708 / BS EN 60332-1-2	Production batch

Inspection certificate

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

Product approvals

BS 6708CE · LVDRoHS · REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX · BS 6708 TYPE 62 (or TYPE 63 / TYPE 64) · 640/1100 V · [2x4 / 3x4 / 4x4] · PCP

Delivery form: Heat-treated seaworthy wooden drums lagged with solid timber battens
Lengths: Custom cut-to-length reels per coalface lighting/control schedule
Certificate: EN 10204 3.1 inspection certificate with every dispatch
Quote response: Engineering specification and quote within 2 business hours

Technical documents

Downloads

PDFBS 6708 Type 62, Type 63 & Type 64 Screened Armoured Mining Cable – technical datasheet3 sizes · construction, technical data, approvals XLSXBS 6708 Type 62 / 63 / 64 spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-20
Updated: 2026-10-20

FAQ

Questions engineers ask first

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

How do BS 6708 Type 62, Type 63 and Type 64 differ from one another?

All three are 640/1,100 V pliable wire-armoured 4 mm² cables with individual composite tinned-copper/nylon braided screens over every core. Type 62 has 2 screened cores (2×4 mm², 23.9–26.4 mm OD), Type 63 has 3 screened cores (3×4 mm², 24.8–27.3 mm OD), and Type 64 has 4 screened cores (4×4 mm², 26.4–29.9 mm OD).

How does BS 6708 Type 64 (4×4 mm²) differ from BS 6708 Type 70 (4×4 mm²)?

Type 64 is rated at 640/1,100 V (2.5 kV test voltage) and applies an individual composite copper/nylon braided screen over each of the four 4 mm² cores beneath the inner sheath and pliable wire armour. Type 70 has four unscreened 4 mm² cores inside the inner sheath and pliable wire armour (320/550 V datasheet rating, 1.5 kV test voltage).

What are the parallel screen and armour resistances for fault-loop calculations?

At 20 °C, the combined parallel DC resistance of the individual core screens is ≤ 5.5 Ω/km (Type 62), ≤ 3.9 Ω/km (Type 63) and ≤ 2.8 Ω/km (Type 64), while the galvanized steel pliable wire armour is ≤ 4.91, ≤ 4.63 and ≤ 4.16 Ω/km respectively.

What is the voltage drop of Types 62, 63 and 64 at 4 mm²?

The published voltage drop is 12.38 mV/A/m for single-phase 2-core Type 62, and 10.72 mV/A/m for three-phase 3-core Type 63 and 4-core Type 64.

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03Message for our engineers

BS 6708 Type 62, Type 63 & Type 64 Armoured Cable

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Reel & motion:
- Reel type: 
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