
Type 7M BS 6708 640/1100 V Screened Pilot Mining Cable
Type 7M mining cable for excavating, crushing and coal-cutting equipment, with the source-defined 640/1100 V rating and 3 kV test reference.
- Model: Type 7M
- 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 7M for excavating, crushing and coal-cutting equipment
Type 7M 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 screened-pilot choice for coal-cutter supply, not a generic promise of performance.
The supplied construction uses three individually screened phase cores and one individually screened pilot core laid up in contact with the central bare earth conductor, using EPR insulation and a heavy-duty chloroprene sheath. That arrangement matters because Type 7M screens the pilot; do not substitute it for Type 7 when the existing marking or protection design calls for an unscreened pilot. The family should therefore be selected by model, core function and installation route as well as by voltage. The مجموعة كابلات التعدين والأنفاق provides the wider TEBAOFLEX product context.
- اختر حسب: confirm whether the machine monitoring circuit requires the pilot to be screened together with the phase cores.
- تأكيد قبل الطلب: 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 project-level view of machine routing and cable selection, review the Mining & Tunnelling solutions page alongside this Type 7M datasheet.
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 7M construction
The cross-section below is the supplied construction drawing for Type 7M. The ordering decision is driven by Type 7M screens the pilot; do not substitute it for Type 7 when the existing marking or protection design calls for an unscreened pilot.

Source-listed construction
| عنصر التركيب | القيمة المدرجة في المصدر |
|---|---|
| موصل | Electrolytic stranded tinned copper wire, IEC 60228 Class 5 |
| العزل | EPR; ground core is not insulated |
| شاشة | Tinned copper and nylon braided screen over phase and pilot cores |
| التسديدة السهلة | Three phase cores and one pilot core, all individually screened, laid up in contact with the bare earth conductor in the centre |
| غمد | Heavy-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.
Type 7M 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 7M construction separate from nearby Type numbers.
- Primary duty: excavating, crushing and coal-cutting equipment.
- Model boundary: Type 7M screens the pilot; do not substitute it for Type 7 when the existing marking or protection design calls for an unscreened pilot.
- 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 intended pilot is unscreened, the Type 7 coal-cutter cable is the relevant nearby reference; select between the two from the specified pilot and earth arrangement, not from voltage alone.
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 7M 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 |
|---|---|
| نموذج | Type 7M |
| الجهد المقنن | 640/1100 فولت |
| جهد الاختبار | 3 كيلو فولت |
| طلب | excavating, crushing and coal-cutting equipment |
| معيار المنتج | BS 6708 |
Complete source-transcribed technical tables
Source PDF: BS6708_TYPE_7M_640_1100V_CABLE_datasheet.pdf; 3 pages; 6 extracted tables. Values are not recalculated or replaced by third-party values.
| المعلمة | قيمة |
|---|---|
| موصل | Electrolytic stranded tinned copper wire, IEC 60228 Class 5 |
| العزل | EPR insulation; ground core is not insulated |
| فاصل | Coloured textile tape for core identification |
| شاشة | Tinned copper and nylon braided screen over phase and pilot cores |
| التسديدة السهلة | Three phase cores and one pilot core, all individually screened, laid up in contact with the bare earth conductor in the centre |
| أغطية الفراش | Rubber based bedding compound |
| الغلاف الخارجي | Heavy duty chloroprene outer sheath |
| المعلمة | قيمة |
|---|---|
| معيار | BS 6708 |
| الجهد المقنن | 640/1100 فولت |
| جهد الاختبار | 3 كيلو فولت |
| نوع الكابل | Composite individually screened phase and pilot cores with central bare earth conductor |
| CORE DIMENSIONS | |||||||
|---|---|---|---|---|---|---|---|
| Nominal cross section | موصل الطور | Phase stranding mm | Cond. dia. mm | Insul. dia. mm | Screen dia. mm | موصل أرضي | Pilot conductor |
| 3x16+16+16 | 3x16 | 126/0.40 | 5.50 | 8.85 | 11.15 | 1x16 | 1x16 |
| 3x25+16+25 | 3x25 | 196/0.40 | 6.75 | 10.35 | 12.65 | 1x16 | 1x25 |
| 3x35+18+35 | 3x35 | 276/0.40 | 8.00 | 11.60 | 13.90 | 1x18 | 1x35 |
| 3x50+25+50 | 3x50 | 396/0.40 | 9.75 | 13.60 | 15.90 | 1x25 | 1x50 |
| 3x70+35+70 | 3x70 | 360/0.50 | 11.60 | 15.70 | 18.00 | 1x35 | 1x70 |
| 3x95+50+95 | 3x95 | 475/0.50 | 12.75 | 17.25 | 19.55 | 1x50 | 1x95 |
| 3x120+50+120 | 3x120 | 608/0.50 | 15.10 | 20.05 | 22.35 | 1x50 | 1x120 |
| 3x150+70+150 | 3x150 | 740/0.50 | 17.00 | 22.20 | 24.50 | 1x70 | 1x150 |
| CABLE DETAILS | ||||||
|---|---|---|---|---|---|---|
| Nominal cross section | Min. OD mm | Max. OD mm | Min. bend radius mm | Max pulling tension kgf | Approx. weight kg/km | Copper weight kg/km |
| 3x16+16+16 | 35.8 | 38.6 | 309 | 480 | 2500 | 1130 |
| 3x25+16+25 | 39.7 | 42.9 | 343 | 642 | 3150 | 1380 |
| 3x35+18+35 | 43.1 | 46.3 | 370 | 834 | 3650 | 1800 |
| 3x50+25+50 | 48.5 | 51.8 | 414 | 1200 | 4700 | 2450 |
| 3x70+35+70 | 55.1 | 58.8 | 470 | 1680 | 6350 | 3350 |
| 3x95+50+95 | 62.4 | 66.1 | 529 | 2000 | 8200 | 4500 |
| 3x120+50+120 | 68.0 | 72.5 | 580 | 2000 | 9900 | 5300 |
| 3x150+70+150 | 70.4 | 78.4 | 627 | 2000 | 11800 | 7350 |
| CURRENT RATINGS | ||
|---|---|---|
| Nominal cross section | Continuous current rating at 25 deg C | Intermittent current rating at 25 deg C |
| 3x16+16+16 | 85 | 96 |
| 3x25+16+25 | 110 | 125 |
| 3x35+18+35 | 135 | 150 |
| 3x50+25+50 | 170 | 200 |
| 3x70+35+70 | 205 | 250 |
| 3x95+50+95 | 250 | 310 |
| 3x120+50+120 | 295 | 355 |
| 3x150+70+150 | 320 | 385 |
| ELECTRICAL DETAILS | |||||||
|---|---|---|---|---|---|---|---|
| Nominal cross section | Phase DC res. 20 deg C ohm/km | Pilot DC res. 20 deg C ohm/km | Screens+earth res. ohm/km | LReactance 50 Hz ohm/km | Reactance 60 Hz ohm/km | Min. insul. res. Mohm/km | Voltage drop mV/A/m |
| 3x16+16+16 | 1.24 | 1.24 | 0.58 | 0.109 | 0.131 | 435 | 2.62 |
| 3x25+16+25 | 0.795 | 0.795 | 0.47 | 0.107 | 0.128 | 375 | 1.68 |
| 3x35+18+35 | 0.565 | 0.565 | 0.45 | 0.101 | 0.121 | 325 | 1.20 |
| 3x50+25+50 | 0.393 | 0.393 | 0.38 | 0.098 | 0.118 | 285 | 0.84 |
| 3x70+35+70 | 0.277 | 0.277 | 0.27 | 0.095 | 0.114 | 260 | 0.61 |
| 3x95+50+95 | 0.210 | 0.210 | 0.23 | 0.094 | 0.113 | 250 | 0.47 |
| 3x120+50+120 | 0.164 | 0.164 | 0.21 | 0.092 | 0.110 | 250 | 0.38 |
| 3x150+70+150 | 0.132 | 0.132 | 0.158 | 0.080 | 0.096 | 250 | 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 7M standards and references
| الموضوع | Source-linked reference |
|---|---|
| معيار المنتج | BS 6708 |
| الجهد المقنن | 640/1100 فولت |
| جهد الاختبار | 3 كيلو فولت |
| 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.
خيارات الكابلات ذات الصلة
قارن بين خيارات الكابلات هذه حسب مجموعة الخدمات، والحركة، والحمل، والجهد، ومتطلبات الإرسال.
كابل منجم فحم تحت الأرض من النوع 240، من 1.1 كيلو فولت إلى 11 كيلو فولت
خيار كابل ذي صلة لتطبيق أو وظيفة مختلفة.
عرض المنتجكابل تعدين من النوع 241.1 بجهد 1.1 كيلو فولت | عائلة النوع 241
خيار كابل ذي صلة لتطبيق أو وظيفة مختلفة.
عرض المنتجاطلب توصية بشأن الكابلات وعرض سعر
يرجى إرسال الخدمات المطلوبة، وطول الكابل، والقدرات الميكانيكية، والبيئة، ونوع التوصيلات، والكمية. سيقوم فريقنا بمراجعة الطلب قبل تقديم عرض السعر.
- يرجى تضمين اسم المنتج أو رمز المنتج (SKU) بالإضافة إلى طول الكابل المطلوب وكميته.
- أرفق المواصفات أو الرسم أو ورقة البيانات عند توفرها.

