
Type 307 BS 6708 1900/3300 V Coal Cutter Cable
Type 307 mining cable for excavating, crushing and coal-cutting equipment, with the source-defined 1900/3300 V rating and 7.5 kV test reference.
- Model: Type 307
- 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.
Type 307 for excavating, crushing and coal-cutting equipment
Type 307 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 unscreened-pilot 3.3 kV coal-cutter configuration, not a generic promise of performance.
The supplied construction uses three copper/nylon screened phase cores, one unscreened pilot core and a bare copper earth conductor, laid up together and covered by a heavy-duty chloroprene sheath. That arrangement matters because Type 307 has an unscreened single pilot; Type 307M screens the pilot and Type 307S uses an unscreened three-core pilot unit. The family should therefore be selected by model, core function and installation route as well as by voltage. The gama de cabos para mineração e construção de túneis provides the wider TEBAOFLEX product context.
- Escolha por: confirm the existing pilot arrangement, phase area, cable handling route and 1900/3300 V equipment interface.
- Confirme antes de fazer o pedido: 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.
O BS 6708 mining cable replacement guide gives procurement teams a concise way to compare the Type 307 pilot and screening variants before selecting a 3.3 kV 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.
Type 307 construction
The cross-section below is the supplied construction drawing for Type 307. The ordering decision is driven by Type 307 has an unscreened single pilot; Type 307M screens the pilot and Type 307S uses an unscreened three-core pilot unit.

Source-listed construction
| Elemento de construção | Valor indicado na fonte |
|---|---|
| Condutor | Electrolytic stranded tinned copper wire, IEC 60228 Class 5 |
| Isolamento | EPR; earth conductor is not insulated |
| Tela | Tinned copper and nylon braided screen over phase cores; pilot core is not screened |
| Lay-up | All cores laid up in contact with the bare copper earth conductor |
| Bainha | Heavy-duty chloroprene outer sheath |
| Arranjo central | Three screened phase cores, one unscreened pilot core and a bare copper earth conductor |
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.
Type 307 applications

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 307 construction separate from nearby Type numbers.
- Primary duty: excavating, crushing and coal-cutting equipment.
- Model boundary: Type 307 has an unscreened single pilot; Type 307M screens the pilot and Type 307S uses an unscreened three-core pilot unit.
- 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.
If the pilot-screen requirement changes, use the Type 307M screened-pilot cable as the close model comparison and verify the monitoring circuit before procurement.
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.
Type 307 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 item | Source-linked value |
|---|---|
| Modelo | Type 307 |
| Tensão nominal | 1900/3300 V |
| Tensão de teste | 7.5 kV |
| Aplicativo | excavating, crushing and coal-cutting equipment |
| Norma do produto | BS 6708 |
Complete source-transcribed technical tables
Source PDF: BS6708_TYPE_307_1900_3300V_POWER_SUPPLY_CABLE_datasheet.pdf; 3 pages; 4 extracted tables. Values are not recalculated or replaced by third-party values.
| Parâmetro | Valor |
|---|---|
| Condutor | Electrolytic, stranded, tinned copper wire, IEC 60228 Class 5 |
| Isolamento | EPR; the earth conductor is not insulated |
| Separador | Colored textile tape for core identification |
| Tela | Tinned copper and nylon braided screen over phase cores; pilot core is not screened |
| Lay-up | All cores laid up in contact with the bare copper earth conductor |
| Roupa de cama | Rubber based bedding compound |
| Bainha externa | Heavy duty chloroprene outer sheath |
| Parâmetro | Valor |
|---|---|
| Padrão | BS 6708 |
| Tensão nominal | 1900/3300 V |
| Tensão de teste | 7.5 kV |
| Arranjo central | Three screened phase cores, one unscreened pilot core and a bare copper earth conductor |
| CABLE DIMENSIONS | |||||||
|---|---|---|---|---|---|---|---|
| Parâmetro | 3x25 +25+16 | 3x35 +25+16 | 3x50 +35+25 | 3x70 +50+35 | 3x95 +50+50 | 3x120 +70+70 | 3x150 +70+95 |
| Phase conductor cross section mm2 | 3x25 | 3x35 | 3x50 | 3x70 | 3x95 | 3x120 | 3x150 |
| Phase conductor stranding | 196/0.40 | 276/0.40 | 396/0.40 | 360/0.50 | 475/0.50 | 608/0.50 | 756/0.50 |
| Phase conductor diameter nominal mm | 7.00 | 8.50 | 10.00 | 11.70 | 13.50 | 15.40 | 17.20 |
| Phase insulation diameter nominal mm | 13.10 | 14.70 | 15.70 | 17.70 | 19.10 | 21.40 | 23.00 |
| Phase screen diameter mm | 15.50 | 17.10 | 17.70 | 19.70 | 21.10 | 23.40 | 25.00 |
| Earth conductor cross section mm2 | 1x25 | 1x25 | 1x35 | 1x50 | 1x50 | 1x70 | 1x95 |
| Earth conductor stranding | 196/0.40 | 196/0.40 | 276/0.40 | 396/0.40 | 396/0.40 | 360/0.50 | 475/0.50 |
| Earth conductor diameter nominal mm | 7.00 | 7.00 | 8.50 | 10.00 | 10.00 | 11.70 | 13.50 |
| Pilot conductor cross section mm2 | 1x16 | 1x16 | 1x25 | 1x35 | 1x50 | 1x70 | 1x95 |
| Pilot conductor stranding | 126/0.40 | 126/0.40 | 196/0.40 | 276/0.40 | 396/0.40 | 360/0.50 | 475/0.50 |
| Pilot conductor diameter nominal mm | 5.50 | 5.50 | 7.00 | 8.50 | 10.00 | 11.70 | 13.50 |
| Pilot insulation diameter nominal mm | 11.60 | 11.60 | 13.10 | 14.70 | 15.70 | 17.70 | 19.10 |
| Minimum overall diameter mm | 47.4 | 51.6 | 56.8 | 62.8 | 68.9 | 73.4 | 75.9 |
| Maximum overall diameter mm | 49.9 | 54.6 | 59.8 | 65.8 | 72.7 | 77.2 | 79.7 |
| Minimum bending radius mm | 400 | 440 | 480 | 525 | 580 | 615 | 640 |
| Maximum pulling tension kgf | 640 | 830 | 1200 | 1680 | 2000 | 2000 | 2000 |
| Approximate cable weight kg/km | 4000 | 4800 | 6150 | 7600 | 9250 | 11200 | 13000 |
| Copper weight kg/km | 1654 | 1948 | 2666 | 3482 | 4346 | 5450 | 6000 |
| ELECTRICAL DETAILS | |||||||
|---|---|---|---|---|---|---|---|
| Parâmetro | 3x25 +25+16 | 3x35 +25+16 | 3x50 +35+25 | 3x70 +50+35 | 3x95 +50+50 | 3x120 +70+70 | 3x150 +70+95 |
| Continuous current rating at 25 deg C ambient A | 110 | 135 | 170 | 205 | 250 | 295 | 320 |
| Intermittent current rating at 25 deg C ambient A | 130 | 155 | 210 | 255 | 315 | 360 | 385 |
| Phase conductor DC resistance at 20 deg C ohm/km | 0.795 | 0.565 | 0.393 | 0.277 | 0.210 | 0.164 | 0.132 |
| Pilot conductor DC resistance at 20 deg C ohm/km | 1.240 | 1.240 | 0.795 | 0.565 | 0.393 | 0.277 | 0.210 |
| Three screens and earth in parallel DC resistance ohm/km | 0.50 | 0.50 | 0.35 | 0.35 | 0.28 | 0.28 | 0.14 |
| Nominal reactance at 50 Hz ohm/km | 0.125 | 0.117 | 0.113 | 0.108 | 0.105 | 0.101 | 0.098 |
| Nominal reactance at 60 Hz ohm/km | 0.150 | 0.141 | 0.136 | 0.129 | 0.126 | 0.121 | 0.118 |
| Minimum insulation resistance at 20 deg C MOhm/km | 1250 | 1100 | 950 | 820 | 720 | 660 | 600 |
| 3 phase voltage drop at full load mV/A/m | 1.69 | 1.21 | 0.85 | 0.61 | 0.48 | 0.39 | 0.32 |
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.
Type 307 standards and references
| Assunto | Source-linked reference |
|---|---|
| Norma do produto | BS 6708 |
| Tensão nominal | 1900/3300 V |
| Tensão de teste | 7.5 kV |
| Source application | excavating, 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.
Opções de cabos relacionadas
Compare estas opções de cabos por combinação de serviços, movimentação, carga, tensão e requisito de transmissão.
Type 245 Flexible Rubber Mining Cable 1.1–6.6 kV
Uma opção de cabo relacionada para uma aplicação ou perfil de serviço diferente.
Ver produtoCabo de alimentação blindado para mineração TYPE260
Uma opção de cabo relacionada para uma aplicação ou perfil de serviço diferente.
Ver produtoCabo para mina de carvão subterrânea tipo 240, 1,1 kV a 11 kV
Uma opção de cabo relacionada para uma aplicação ou perfil de serviço diferente.
Ver produtoSolicite uma recomendação e orçamento de cabos.
Envie-nos as especificações dos serviços necessários, comprimento do cabo, capacidade mecânica, ambiente, tipo de terminação e quantidade. Nossa equipe analisará a solicitação antes de enviar um orçamento.
- Inclua o nome do produto ou o código SKU, além do comprimento e da quantidade de cabos necessários.
- Anexe uma especificação, desenho ou ficha técnica, quando disponíveis.

