MGM 112 Type 201/211 660/1100V Screened Armoured Mining Power Cable
MGM 112 Type 201 / Type 211 cross-section
  1. MGM 112 Type 201/211 660/1100V Screened Armoured Mining Power Cable
  2. MGM 112 Type 201 / Type 211 cross-section

MGM 112 Type 201/211 660/1100V Screened Armoured Mining Power Cable

MGM 112 Type 201 and Type 211 are 660/1100 V armoured mining power cables with tinned Class 5 copper, EPR insulation and individually braided phase screens; Type 211 adds an unscreened earth core, sizes 3×10 to 3×120 mm².

  • Rated / test voltage660/1100 V / 3 kV
  • Type 201 cores3 × 10 to 3 × 120 mm²
  • Type 211 cores3×10+10 to 3×120+70 mm²
  • ConductorTinned Cu, IEC 60228 Class 5
  • ScreenCu/nylon braid on phase cores
  • Armour / sheathGalv. steel / chloroprene
  • Overall diameter37.3 – 90.0 mm
  • Current rating at 25 °C63 – 295 A

Download MGM 112 Type 201 / Type 211 datasheet (PDF)Full specifications

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Product overview

MGM 112 Type 201 and Type 211 are the low-voltage, individually screened members of the MGM 112 family: 660/1100 V armoured rubber cables for feeding mobile and semi-mobile mining machines. They are built to the MGM 112 specification of the Turkish Hard Coal Enterprises MGM mining cable series. Type 201 has three screened phase cores only; Type 211 adds a fourth, unscreened earth core of reduced or equal size.

Each phase core has tinned Class 5 copper, EPR insulation and a tinned copper / nylon braided screen, so a phase-to-screen fault is detected before it can reach the neighbouring phase. The cores are laid up in contact, bedded in a rubber compound, armoured with galvanized pliable steel and sheathed in heavy-duty chloroprene for deep mines where explosive gases and dust can accumulate, and for surface plant.

Browse the MGM mining cable category for the other cables in the Turkish hard coal MGM series or download the MGM 112 Type 201 / Type 211 datasheet (PDF).

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Application & Features

Selection overview

The specified duty is power supply for excavating and crushing machines and equipment. In practice that covers feeder cables to crushers and breakers at the tip or the preparation plant, supply cables to loaders, drill rigs and pumps in the roadway, and the links between a section transformer or gate-end box and the machine that moves with the face. Galvanized steel pliable armour protects the cable where it is dragged, stepped on or hit by falling rock, while still allowing it to be rerouted when the equipment moves.

Choose between the two versions by how your protection is earthed. Type 201 has no separate earth core, so the parallel resistance of the three braided screens (listed in the table) and the armour carry the earth-fault current. Type 211 adds a dedicated insulated earth conductor, from 1×10 mm² up to 1×70 mm², which gives a lower-resistance protective conductor independent of the armour. For 1900/3300 V circuits use the screened Type 331 instead.

  • Excavating and crushing plantSupply cable for crushers, loaders, drills and other 660/1100 V mining machines, underground or on surface.
  • Individually screened phasesTinned copper / nylon braid on each phase core for earth-fault detection and touch safety.
  • With or without earth coreType 201 relies on screens and armour; Type 211 adds a separate unscreened earth core.
  • Armoured rubber constructionGalvanized steel pliable armour under a heavy-duty chloroprene sheath; mine approval quoted per order.
Steel feed hopper above a rock crusher at a mine plant, the kind of crushing equipment an MGM 112 Type 201 or 211 cable supplies at 660/1100 V
Feed hopper of a rock crusher. Crushing and excavating machines like this are the duty the MGM 112 Type 201 and 211 cables are specified for. Photo: Steve Ford Elliott, CC BY 2.0, via Wikimedia Commons.

Specifications

Technical data

Values from the current TEBAOFLEX MGM 112 Type 201 / Type 211 datasheet. The final construction is confirmed on the approved datasheet for your order.

Electrical, mechanical and material data

Parameter Value
Rated voltage 660/1100 V
Test voltage 3 kV
Conductor Stranded, tinned copper wire, IEC 60228 Class 5
Insulation EPR
Screen Tinned copper / nylon braid over phase cores
Type 211 earth core Unscreened
Lay-up All cores laid up in contact
Bedding Rubber-based bedding compound
Armour Galvanized steel pliable armour
Outer sheath Heavy-duty chloroprene compound
Design specification MGM 112
Application Power supply for excavating and crushing machines and equipment; deep mines where explosive gases and dust can accumulate, and surface use

MGM 112 Type 201 dimensions, weights and electrical data

Cable type Unit 3×10 3×16 3×25 3×35 3×50 3×70 3×95 3×120
Cores / cross-section mm² 3×10 3×16 3×25 3×35 3×50 3×70 3×95 3×120
Stranding mm 80/0.40 126/0.40 196/0.40 276/0.40 396/0.40 360/0.50 475/0.50 608/0.50
Conductor diameter Nom. mm 4.40 5.50 7.10 8.40 10.10 11.90 13.90 15.50
Insulation thickness mm 1.5 1.5 1.6 1.6 1.6 1.8 2.0 2.2
Radial inner sheath mm 2.5 2.5 2.5 2.5 2.5 2.5 3.8 3.8
Min. inner sheath diameter mm 25.5 28.7 32.2 35.2 39.5 44.5 52.5 56.6
Max. inner sheath diameter mm 27.5 30.7 34.2 37.2 41.5 47.0 55.5 59.6
Size of armour mm 7/0.71 7/0.71 7/0.71 7/0.71 7/0.71 7/0.90 7/1.25 7/1.25
Radial outer sheath mm 3.8 3.8 4.1 4.4 4.9 5.4 5.9 6.3
Min. overall diameter mm 37.3 40.6 44.6 48.3 53.6 60.7 71.8 76.7
Max. overall diameter mm 39.8 43.4 47.4 51.1 57.4 64.5 75.8 81.0
Min. bending radius mm 398 434 474 511 574 645 758 810
Approx. cable weight kg/km 2520 3220 3850 4600 5710 7450 10250 11800
Copper weight kg/km 488 741 1120 1868 2490 3686 4766 6566
Current rating at 25 °C A 63 85 110 135 170 205 250 295
Phase conductor Ω/km 1.95 1.24 0.795 0.565 0.393 0.277 0.210 0.164
Armour Ω/km 1.97 1.76 1.45 1.03 1.00 0.51 0.39 0.30
3 screens parallel Ω/km 1.33 1.61 1.10 1.20 1.40 0.70 0.85 0.50

MGM 112 Type 211 dimensions, weights and electrical data

Cable type Unit 3×10+10 3×16+16 3×25+16 3×35+25 3×50+35 3×70+50 3×95+70 3×120+70
Phase cores / cross-section mm² 3×10 3×16 3×25 3×35 3×50 3×70 3×95 3×120
Phase stranding mm 80/0.40 126/0.40 196/0.40 276/0.40 396/0.40 360/0.50 475/0.50 608/0.50
Phase conductor diameter mm 4.40 5.50 7.10 8.40 10.10 11.90 13.90 15.50
Phase insulation thickness mm 1.5 1.5 1.6 1.6 1.7 1.8 2.0 2.2
Earth core / cross-section mm² 1×10 1×16 1×16 1×25 1×35 1×50 1×70 1×70
Earth stranding mm 80/0.40 126/0.40 126/0.40 196/0.40 276/0.40 396/0.40 360/0.50 360/0.50
Earth conductor diameter mm 4.40 5.50 5.50 7.10 8.40 10.10 11.90 11.90
Earth insulation thickness mm 1.5 1.5 1.5 1.6 1.6 1.7 1.8 1.8
Radial inner sheath mm 2.5 2.5 2.5 2.5 2.5 3.8 5.0 5.0
Min. inner sheath diameter mm 27.9 31.6 35.4 38.8 43.7 51.8 60.3 64.9
Max. inner sheath diameter mm 29.9 33.6 37.4 40.8 46.2 54.8 63.3 67.9
Size of armour mm 7/0.71 7/0.71 7/0.71 7/0.71 7/0.71 7/0.90 7/1.25 7/1.25
Radial outer sheath mm 3.8 4.1 4.4 4.8 5.3 5.8 6.4 6.0
Min. overall diameter mm 39.8 44.0 48.5 52.7 59.7 68.8 80.6 86.0
Max. overall diameter mm 42.3 46.8 51.3 56.5 63.5 72.8 84.9 90.0
Min. bending radius mm 423 468 513 565 635 728 849 900
Approx. cable weight kg/km 3050 3920 4780 5800 7080 10550 16650 19000
Copper weight kg/km 584 895 1164 1608 2196 3036 4028 4758
Current rating at 25 °C A 63 85 110 135 170 205 250 295
Phase conductor Ω/km 1.95 1.24 0.795 0.565 0.393 0.277 0.210 0.164
Earth conductor Ω/km 1.95 1.24 1.24 0.795 0.565 0.393 0.277 0.277
Armour Ω/km 1.81 1.63 1.45 1.03 0.715 0.504 0.382 0.299
3 screens parallel Ω/km 1.33 1.61 1.10 1.20 1.40 0.70 0.85 0.50

Selection note: before ordering, ask our engineers to confirm the conductor operating temperature, the sheath colour, the core colour code, the ambient conditions behind the 25 °C current rating and any derating for drum or buried installation. Minimum bending radius is given per size in the tables.

Standards & References

Applicable standards and compliance

  • Design specificationMGM 112, the armoured rubber power cable specification in the Turkish Hard Coal Enterprises MGM mining cable series; Type 201 and Type 211 are its screened 660/1100 V designs.
  • Conductor referenceStranded tinned copper conductors to IEC 60228 Class 5.
  • Voltage scope660/1100 V rated voltage and 3 kV test voltage.
  • ApprovalsMine-authority approvals, type-test reports and marking requirements are confirmed and quoted per order.

Construction

Material and build-up

MGM 112 Type 201 and Type 211 are round cables. The screened phase cores (plus the unscreened earth core on Type 211) are laid up in contact with each other, covered by a rubber bedding, armoured with galvanized steel pliable wires and finished with a heavy-duty chloroprene sheath.

  • Conductor: stranded tinned copper, IEC 60228 Class 5, from 80/0.40 mm (10 mm²) to 608/0.50 mm (120 mm²). Tinning protects the fine wires in humid mine air.
  • Insulation: EPR on every core, 1.5 to 2.2 mm thick on the phase cores depending on size.
  • Phase screens: tinned copper / nylon braid over each phase core; the three screens together give 0.50 to 1.61 Ω/km in parallel.
  • Earth core (Type 211 only): an unscreened EPR-insulated tinned copper earth conductor, 1×10 to 1×70 mm², laid in contact with the phase cores.
  • Bedding: rubber-based bedding compound, 2.5 to 5.0 mm radial, that rounds the layup and cushions the armour.
  • Armour: galvanized steel pliable armour, 7/0.71 mm up to 7/1.25 mm strand size, for crush and impact protection.
  • Outer sheath: heavy-duty chloroprene compound, 3.8 to 6.4 mm radial, for abrasion and oil exposure in the roadway.

FAQ

Selection questions

What is the difference between MGM 112 Type 201 and Type 211?

Both are 660/1100 V cables with three individually screened phase cores, EPR insulation, steel armour and a chloroprene sheath. Type 201 has only the three phase cores, so earth-fault current returns through the screens and armour. Type 211 adds a separate unscreened earth core (for example 3×25+16 or 3×95+70 mm²), which makes it a little larger and heavier for the same phase size. Within the MGM 112 family, the 1900/3300 V equivalents are the screened MGM 112 Type 331 and the unscreened MGM 112 Type 321.

Which size do I need for a crusher or loader feeder?

Start from the full-load current of the machine and compare it with the current rating at 25 °C in the tables (63 A for 3×10 mm² up to 295 A for 3×120 mm²), then check voltage drop over the cable length using the phase conductor resistance. If the cable runs on a drum, in high ambient temperature or grouped with other cables, ask us for derating before you fix the size.

Which details are needed for a quotation?

Send the type (201 or 211), the core size such as 3×50+35 mm², the length per drum and total quantity, the operating voltage, any sheath marking or colour requirement, and the mine authority whose approval or test report you need. Our engineers confirm the construction and return the approved datasheet with the quotation.

How does MGM 112 Type 211 compare with MGM 115 and other low-voltage MGM 112 types?

Type 211 is an armoured cable for machines that move occasionally. MGM 115 Type 11 uses a similar screened 3+1 layout for trailing duty, and MGM 112 Type 62, 63 and 64 cover two- to four-core individually screened designs. For unscreened low-voltage armoured cables see MGM 112 Type E2, E4 and E5 or browse the MGM mining cable category.

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Send the type (201 or 211), cores and size, length per drum, total quantity, operating voltage and mine approval requirement.

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WAWhatsApp+86 156 3992 7303@Emailinfo@tebaoflexcablegroup.com


Quality Assurance

Testing at every stage in our own workshop and laboratory, from incoming copper to the packed drum.

Bare copper wire bobbins inspected before stranding at the TEBAOFLEX factory

Raw Material Inspection

Every batch of copper rod, rubber compound and reinforcing material is checked before it reaches the line.

  • Copper: conductor resistance, elongation and surface condition on incoming rod and drawn wire
  • EPR, CPE, PUR and silicone compounds: hardness, tensile strength, elongation and ageing samples from each mix
  • Suppliers and batch numbers are recorded so every drum can be traced back to its materials
Operator monitoring an extrusion line control panel in the TEBAOFLEX workshop

Manufacturing Process Control

Stranding, insulation extrusion, core assembly and sheathing run under recorded process parameters.

  • Class 5/6 stranding with lay length and tension monitored for trailing and reeling flexibility
  • Continuous-vulcanisation extrusion with wall thickness and spark tests logged on every length
  • Operators sign off each stage before the cable moves to the next machine
3.5 kV voltage withstand test station in the TEBAOFLEX laboratory

Electrical Testing

Finished lengths go through the routine tests required by the referenced VDE, ICEA, IEC or NEK standard.

  • Conductor resistance and insulation resistance on every length
  • Voltage withstand (3.5 kV and higher) and partial-discharge measurement in the shielded HV laboratory
  • Screen and pilot-core continuity checks for mining and reeling constructions
Tensile testing machine for conductor and sheath samples

Mechanical and Ageing Tests

Samples from production are tested for the duty a mining, crane or submersible cable will actually see.

  • Tensile strength and elongation of insulation and sheath before and after ageing
  • Hot-set, ozone, oil-immersion and low-temperature bending tests
  • Constant-temperature water bath for insulation resistance of submersible constructions
Single-cable vertical flame test chamber

Flame Test and Final Inspection

Before packing, the cable is checked against the order and the flame-performance requirement of its standard.

  • Single-cable vertical flame test to IEC 60332-1-2 where specified
  • Metre marking, printing, drum length and appearance inspection
  • Test report and packing list issued with every shipment

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