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CÂBLES MINIERS ET DE TUNNELAGE Modèle / construction

Type 307S BS 6708 1900/3300 V Three-Core Pilot Coal Cutter Cable

Type 307S mining cable for excavating, crushing and coal-cutting equipment, with the source-defined 1900/3300 V rating and 7.5 kV; 2.5 kV pilot test reference.

  • Model: Type 307S
  • 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 307S for excavating, crushing and coal-cutting equipment

Type 307S mining cable is specified in the supplied BS 6708 datasheet for excavating, crushing and coal-cutting equipment. 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 three-core pilot-unit option for 3.3 kV face equipment, not a generic promise of performance.

The supplied construction uses three copper/nylon screened phase cores, one unscreened pilot unit with three thinner cores and a bare earth conductor, laid up together under a heavy-duty chloroprene sheath. That arrangement matters because Type 307S uses an unscreened three-core pilot unit, making its control-core arrangement distinct from both Type 307 and Type 307M. 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 the three-core pilot unit and the separate pilot test requirement before matching the cable to the machine control system.
  • 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.

For a three-core pilot specification, use the BS 6708 mining cable replacement guide to check the differences between the Type 307 family variants before approving a substitute.

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 307S construction

The cross-section below is the supplied construction drawing for Type 307S. The ordering decision is driven by Type 307S uses an unscreened three-core pilot unit, making its control-core arrangement distinct from both Type 307 and Type 307M.

Type 307S cable cross-section showing the supplied power, pilot, earth, screen and protection arrangement
Supplied Type 307S 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; earth conductor is not insulated
ÉcranTinned copper and nylon braided screen over phase cores; pilot unit is not screened
Pilot unitOne unscreened pilot unit with three thinner cores
Lay-upAll cores laid up in contact with the bare copper earth conductor
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 307S applications

Type 307S 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 equipment. 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 307S construction separate from nearby Type numbers.

  • Primary duty: excavating, crushing and coal-cutting equipment.
  • Model boundary: Type 307S uses an unscreened three-core pilot unit, making its control-core arrangement distinct from both Type 307 and Type 307M.
  • 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.

For a single unscreened pilot construction, the Type 307 coal cutter cable is the adjacent reference; pilot function must be confirmed from the cable schedule.

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 307S 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 307S
Tension nominale1900/3300 V
Tension d'essai7.5 kV; 2.5 kV pilot
Applicationexcavating, crushing and coal-cutting equipment
Norme du produitBS 6708

Complete source-transcribed technical tables

Source PDF: BS6708_TYPE_307S_1900_3300V_POWER_SUPPLY_CABLE_datasheet.pdf; 3 pages; 4 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; the earth conductor is not insulated
SéparateurColored textile tape for core identification
ÉcranTinned copper and nylon braided screen over phase cores; pilot core is not screened
Lay-upAll cores laid up in contact with the bare copper earth conductor
LiterieRubber based bedding compound
gaine extérieureHeavy duty chloroprene outer sheath
Source table 2, PDF page 1
ParamètreValeur
StandardBS 6708
Tension nominale1900/3300 V
Tension d'essai7.5 kV; 2.5 kV for pilot conductors
Agencement de baseThree screened phase cores, one unscreened pilot unit with three thinner cores and a bare copper earth conductor
Source table 1, PDF page 2
CABLE DIMENSIONS
Paramètre3x50 +35+3x43x70 +50+3x63x95 +50+3x63x120 +70+3x10
Phase conductor cross section mm23x503x703x953x120
Phase conductor stranding396/0.40360/0.50475/0.50608/0.50
Phase conductor diameter nominal mm9.4011.3512.7515.10
Phase insulation diameter nominal mm15.8017.8019.2021.60
Phase screen diameter mm18.2020.1521.6023.95
Earth conductor cross section mm21x351x501x501x70
Earth conductor stranding276/0.40396/0.40396/0.40360/0.50
Earth conductor diameter nominal mm8.209.809.8011.70
Pilot conductors cross section mm23x43x63x63x10
Pilot conductors stranding56/0.3084/0.3084/0.3080/0.40
Pilot conductor diameter nominal mm2.603.503.504.40
Pilot insulation diameter nominal mm5.556.406.407.30
Diameter over sheath nominal mm17.8019.8021.2023.60
Minimum overall diameter mm56.862.868.973.4
Maximum overall diameter mm59.865.872.777.2
Minimum bending radius mm478526581617
Maximum pulling tension kgf1200168020002000
Approximate cable weight kg/km58507150860010500
Copper weight kg/km2685331940394951
Source table 1, PDF page 3
ELECTRICAL DETAILS
Paramètre3x50 +35+3x43x70 +50+3x63x95 +50+3x63x120 +70+3x10
Continuous current rating at 25 deg C ambient A170205250295
Intermittent current rating at 25 deg C ambient A210255315360
Phase conductor DC resistance at 20 deg C ohm/km0.3930.2770.2100.164
Pilot conductor DC resistance at 20 deg C ohm/km5.093.393.391.95
Three screens and earth in parallel DC resistance ohm/km0.350.350.280.28
Nominal reactance at 50 Hz ohm/km0.1130.1080.1050.101
Nominal reactance at 60 Hz ohm/km0.1360.1290.1260.121
Minimum insulation resistance at 20 deg C MOhm/km950820720660
3 phase voltage drop at full load mV/A/m0.850.610.480.39

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 307S standards and references

ObjetSource-linked reference
Norme du produitBS 6708
Tension nominale1900/3300 V
Tension d'essai7.5 kV; 2.5 kV pilot
Source applicationexcavating, crushing and coal-cutting equipment

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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