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CÂBLES MINIERS ET DE TUNNELAGE Modèle / construction

Type 7 BS 6708 640/1100 V Coal Cutter Mining Cable

Type 7 mining cable for excavating, crushing and coal-cutting machines, with the source-defined 640/1100 V rating and 3 kV test reference.

  • Model: Type 7
  • Conductor and insulation: flexible tinned copper with the insulation and core construction listed for this model in the supplied PDF
  • Screen, pilot, earth and armour arrangement preserved from the source datasheet
  • Heavy-duty chloroprene or PCP outer protection as listed for this model
  • Original Type datasheet available as the product download

Send the equipment, voltage, conductor area, route, quantity and document requirements for an RFQ.

Informations sur le produit
Marque
Modèle / construction
Présentation du produit

Type 7 for excavating, crushing and coal-cutting machines

Type 7 mining cable is specified in the supplied BS 6708 datasheet for excavating, crushing and coal-cutting machines. This page keeps the source-listed voltage, test reference, core functions and dimensional tables together so a procurement engineer can compare the requested model against the cable marking and the equipment connection. The editorial focus is the practical coal-cutter power route, not a generic promise of performance.

The supplied construction uses three individually screened phase cores, an unscreened pilot core and a bare earth conductor at the centre, with EPR insulation and a heavy-duty chloroprene sheath. That arrangement matters because The pilot is not screened; this is the key selection point against Type 7M, Type 7S and Type 11. The family should therefore be selected by model, core function and installation route as well as by voltage. The gamme de câbles pour l'exploitation minière et le creusement de tunnels provides the wider TEBAOFLEX product context.

  • Choisir par : confirm that the equipment protection circuit expects an unscreened pilot and central bare earth conductor.
  • Confirmez avant de commander : existing sheath marking, conductor area, cable length, route, support or handling system, terminations and the required inspection documents.
  • Do not infer: values not listed in the supplied PDF, such as a different current basis, water/oil/UV performance, certification scope or mechanical interchangeability.

Before treating a neighbouring Type number as interchangeable, use the BS 6708 mining cable replacement guide to check the screened and unscreened pilot boundaries for a coal-cutter route.

For a technical quotation, send the equipment nameplate or existing cable marking, voltage and size requirement, installation conditions, quantity, destination and any project-specific test or documentation requirement.

Construction

Type 7 construction

The cross-section below is the supplied construction drawing for Type 7. The ordering decision is driven by The pilot is not screened; this is the key selection point against Type 7M, Type 7S and Type 11.

Type 7 cable cross-section showing the supplied power, pilot, earth, screen and protection arrangement
Supplied Type 7 cross-section; the exact core and armour arrangement must be checked against the product datasheet.

Source-listed construction

Élément de constructionValeur indiquée dans la source
ConducteurElectrolytic stranded tinned copper wire, IEC 60228 Class 5
IsolationEPR; ground core is not insulated
ÉcranTinned copper and nylon braided screen over phase cores; pilot core is not screened
Lay-upThree phase cores and one unscreened pilot core laid up in contact with the bare earth conductor in the centre
GaineHeavy-duty chloroprene outer sheath

Do not use the drawing as a substitute for the dimensional tables. Confirm the cable end preparation, screen and earth termination, armour bonding and machine interface with the equipment documentation before installation.

Applications

Type 7 applications

Type 7 mining cable application with underground longwall mining equipment
Media-library application scene showing underground longwall mining equipment; used for application context, not as a model-specific construction proof.

The supplied datasheet identifies this cable for excavating, crushing and coal-cutting machines. Google result patterns for the BS 6708 family also separate cables by equipment duty, voltage class, core function and whether the route is armoured, screened, flat or auxiliary. That is why this page keeps the Type 7 construction separate from nearby Type numbers.

  • Primary duty: excavating, crushing and coal-cutting machines.
  • Model boundary: The pilot is not screened; this is the key selection point against Type 7M, Type 7S and Type 11.
  • Project check: match the cable marking, core map, voltage, termination, route geometry and handling method to the machine drawing.
  • Environmental review: confirm the actual mine/quarry conditions and any authority, inspection or documentation requirements; do not infer a certification or material-resistance claim from the model number.

When the equipment monitoring circuit calls for a screened pilot, compare this page with the Type 7M screened-pilot cable; the model change should be confirmed against the machine wiring diagram.

The cable should be released only after the equipment route, required length, conductor area, core functions and connection details are agreed. If the intended duty is different from the source-listed application, request an engineering review through the quotation process.

Caractéristiques

Type 7 specifications

The summary below identifies the supplied model family. The source-transcribed tables that follow retain the PDF's dimensional, electrical and construction values, including available sizes, resistance, current, diameter, mass, bending or pulling data when the PDF provides them.

Selection itemSource-linked value
ModèleType 7
Tension nominale640/1100 V
Tension d'essai3 kV
Applicationexcavating, crushing and coal-cutting machines
Norme du produitBS 6708

Complete source-transcribed technical tables

Source PDF: BS6708_TYPE_7_640_1100V_CABLE_datasheet.pdf; 3 pages; 6 extracted tables. Values are not recalculated or replaced by third-party values.

Source table 1, PDF page 1
ParamètreValeur
ConducteurElectrolytic stranded tinned copper wire, IEC 60228 Class 5
IsolationEPR insulation; ground core is not insulated
SéparateurColoured textile tape for core identification
ÉcranTinned copper and nylon braided screen over phase cores; pilot core is not screened
Lay-upThree phase cores and one unscreened pilot core laid up in contact with the bare earth conductor in the centre
LiterieRubber based bedding compound
Gaine extérieureHeavy duty chloroprene outer sheath
Source table 2, PDF page 1
ParamètreValeur
StandardBS 6708
Tension nominale640/1100 V
Tension d'essai3 kV
Type de câbleComposite individually screened phase cores with unscreened pilot core and central bare earth conductor
Source table 1, PDF page 2
CORE DIMENSIONS
Nominal cross sectionconducteur de phasePhase stranding mmCond. dia. mmInsul. dia. mmScreen dia. mmconducteur de terrePilot conductor
3x16+16+163x16126/0.405.508.8511.151x161x16
3x25+16+163x25196/0.406.7510.3512.651x161x16
3x35+18+163x35276/0.408.0011.6013.901x181x16
3x50+25+253x50396/0.409.7513.6015.901x251x25
3x70+35+353x70360/0.5011.6015.7018.001x351x35
3x95+50+503x95475/0.5012.7517.2519.551x501x50
3x120+50+703x120608/0.5015.1020.0522.351x501x70
3x150+70+953x150740/0.5017.0022.2024.501x701x95
Source table 2, PDF page 2
CABLE DETAILS
Nominal cross sectionMin. OD mmMax. OD mmMin. bend radius mmMax pulling tension kgfApprox. weight kg/kmCopper weight kg/km
3x16+16+1635.838.630948024001070
3x25+16+1639.742.934364229501330
3x35+18+1643.146.337083435201690
3x50+25+2548.551.8414120046002320
3x70+35+3555.158.8470168062003190
3x95+50+5062.466.1529200079004300
3x120+50+7068.072.5580200096505100
3x150+70+9570.478.46272000115006500
Source table 1, PDF page 3
CURRENT RATINGS
Nominal cross sectionContinuous current rating at 25 deg CIntermittent current rating at 25 deg C
3x16+16+168596
3x25+16+16110125
3x35+18+16135150
3x50+25+25170200
3x70+35+35205250
3x95+50+50250310
3x120+50+70295355
3x150+70+95320385
Source table 2, PDF page 3
ELECTRICAL DETAILS
Nominal cross sectionPhase DC res. 20 deg C ohm/kmPilot DC res. 20 deg C ohm/kmScreens+earth res. ohm/kmLReactance 50 Hz ohm/kmReactance 60 Hz ohm/kmMin. insul. res. Mohm/kmVoltage drop mV/A/m
3x16+16+161.241.240.660.1090.1314352.62
3x25+16+160.7951.240.560.1070.1283751.68
3x35+18+160.5651.240.540.1010.1213251.20
3x50+25+250.3930.7950.440.0980.1182850.84
3x70+35+350.2770.5650.300.0950.1142600.61
3x95+50+500.2100.3930.260.0940.1132500.47
3x120+50+700.1640.2770.240.0920.1102500.38
3x150+70+950.1320.2100.1760.0800.0962500.32

Use the table values with the equipment drawing and approved termination plan. If the requested conductor area, current basis, mechanical limit or environmental condition is not listed in the supplied PDF, treat it as a quotation-stage confirmation item.

Normes

Type 7 standards and references

ObjetSource-linked reference
Norme du produitBS 6708
Tension nominale640/1100 V
Tension d'essai3 kV
Source applicationexcavating, crushing and coal-cutting machines

The product page preserves the BS 6708 reference appearing in the supplied PDF. The BSI record currently identifies BS 6708:1998 as withdrawn on 22 May 2026; this status note is a standards-reference update, not a claim that the product is currently certified or approved. See the official BSI BS 6708 scope record for the published status.

For an RFQ, state the required standard documents, inspection scope, test report, cable marking, destination rules and any replacement-equivalence requirement. The model number alone does not establish legal installation compliance.

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