MGM 109 Type 3023 3.3kV Unscreened Double Armoured Mining Cable
MGM 109 Type 3023 is a 1900/3300 V three-core fixed mining power cable with Class 2 copper, PVC insulation, unscreened cores and two layers of galvanised steel wire armour, from 3×16 to 3×400 mm².
- Rated / test voltage1900/3300 V / 10 kV
- Cores × size3 × 16 to 3 × 400 mm²
- ConductorCu, stranded, IEC 60228 Class 2
- Core screenNone (unscreened)
- Insulation / sheathPVC / special PVC
- ArmourDouble galvanised steel wire
- Overall diameter31.9 – 89.7 mm
- Current at 25 °C82 – 620 A
Download MGM 109 Type 3023 datasheet (PDF)Full specifications
MGM 109 Type 3023 is the unscreened, double-armoured 1900/3300 V member of the MGM 109 armoured cable family. It has three PVC-insulated Class 2 copper cores laid up without individual metallic screens, a PVC bedding and two layers of galvanised steel wire armour, built to the MGM 109 specification of the Turkish Hard Coal Enterprises MGM mining cable series.
It is a fixed-installation cable for supplying machines and equipment at 3.3 kV in deep mines where explosive gases and dust may accumulate and in surface installations. It is the workhorse feeder for shaft, incline and main-roadway runs where the mine accepts unscreened 3.3 kV cores but needs the tensile strength of a double armour.
Browse the MGM mining cable category for the other cables in the Turkish hard coal MGM series or download the MGM 109 Type 3023 datasheet (PDF).
Application & Features
Selection overview
The main 3.3 kV feeders of a mine often leave the surface substation, drop down the shaft and then follow the main roadways to district substations. Along that route the cable hangs vertically, crosses loading points and runs past conveyors and rail haulage. Type 3023 is built for exactly this: two layers of galvanised steel wire take the weight of a long vertical drop and protect the cores against impact, while the Class 2 conductors cover everything from a 3×16 mm² spur to a 3×400 mm² main feeder.
Because the cores carry no copper screen, Type 3023 is about 2 mm smaller in diameter than the screened Type 3123 of the same size, which eases glanding and drum capacity. Where the route is horizontal and tensile load is modest, the single-armoured Type 3013 saves further weight and diameter.
- 3.3 kV main feedersUnscreened 1900/3300 V cores for fixed feeders where the mine does not require a screen per phase.
- Double wire armourTwo galvanised steel wire layers for shafts, inclines and heavily trafficked roadways.
- Gassy and dusty workingsSpecified for deep mines where explosive gases and dust may accumulate, and for surface plant; mine approval is quoted per order.
- Full size range3×16 to 3×400 mm², 82 to 620 A at 25 °C, for spurs up to main substation feeders.
Specifications
Technical data
Values from the current TEBAOFLEX MGM 109 Type 3023 datasheet. The final construction is confirmed on the approved datasheet for your order.
Electrical, mechanical and material data
| Parameter | Value |
|---|---|
| Rated voltage | 1900/3300 V |
| Test voltage | 10 kV |
| Conductor | Electrolytic, stranded copper wire, IEC 60228 Class 2 |
| Insulation | PVC |
| Separator | Semiconductor layer |
| Lay-up | All cores laid up in contact with each other |
| Bedding | PVC-based bedding compound |
| Armour | Two layers of flexible galvanized steel wire armour |
| Separator (optional) | Galvanized steel tape |
| Outer sheath | Special PVC compound |
| Related standard | MGM 109 |
| Application | Fixed installation cable for supplying machines and equipment; deep mines where explosive gases and dust may accumulate, and surface installations |
| Availability | Other sizes and designs available on request |
MGM 109 Type 3023 dimensions and cable weights
| Cable type | Insul. mm | Inner sheath mm | Inner dia. mm | Armour mm | Outer sheath mm | Min. OD mm | Max. OD mm | Bend radius mm | Cable wt. kg/km | Cu wt. kg/km |
|---|---|---|---|---|---|---|---|---|---|---|
| 3×16 | 2.2 | 1.6 | 22.8 | 1/1.6 | 2.0 | 31.9 | 35.9 | 359 | 2500 | 465 |
| 3×25 | 2.2 | 1.6 | 25.4 | 1/1.6 | 2.0 | 34.5 | 38.5 | 385 | 3000 | 700 |
| 3×35 | 2.2 | 1.6 | 27.6 | 1/1.6 | 2.1 | 36.9 | 40.9 | 409 | 3500 | 1010 |
| 3×50 | 2.2 | 1.8 | 31.2 | 1/2.0 | 2.2 | 42.3 | 46.3 | 463 | 4600 | 1480 |
| 3×70 | 2.2 | 1.8 | 34.6 | 1/2.0 | 2.3 | 45.9 | 49.9 | 499 | 5550 | 2170 |
| 3×95 | 2.2 | 1.8 | 38.5 | 1/2.0 | 2.4 | 50.0 | 54.0 | 540 | 6800 | 3070 |
| 3×120 | 2.2 | 2.2 | 42.5 | 1/2.5 | 2.6 | 56.4 | 60.4 | 604 | 8550 | 3790 |
| 3×150 | 2.2 | 2.2 | 46.6 | 1/2.5 | 2.7 | 60.7 | 64.7 | 647 | 9800 | 4880 |
| 3×185 | 2.2 | 2.2 | 50.5 | 1/2.5 | 2.8 | 64.8 | 68.8 | 688 | 11350 | 6120 |
| 3×240 | 2.2 | 2.6 | 56.6 | 1/2.5 | 2.9 | 71.1 | 75.1 | 751 | 13950 | 8080 |
| 3×300 | 2.4 | 2.6 | 62.4 | 1/2.5 | 3.1 | 77.3 | 81.3 | 813 | 16700 | 10290 |
| 3×400 | 2.6 | 2.6 | 70.4 | 1/2.5 | 3.3 | 85.7 | 89.7 | 897 | 20750 | 13750 |
MGM 109 Type 3023 current rating and resistance
| Cable type | Current at 25 deg C, A | Phase and earth conductors, ohm/km | Armour, ohms/km |
|---|---|---|---|
| 3×16 | 82 | 1.15 | 1.53 |
| 3×25 | 108 | 0.727 | 0.97 |
| 3×35 | 135 | 0.524 | 0.699 |
| 3×50 | 168 | 0.387 | 0.516 |
| 3×70 | 207 | 0.268 | 0.357 |
| 3×95 | 250 | 0.193 | 0.257 |
| 3×120 | 292 | 0.153 | 0.204 |
| 3×150 | 335 | 0.124 | 0.165 |
| 3×185 | 382 | 0.0991 | 0.132 |
| 3×240 | 453 | 0.0754 | 0.101 |
| 3×300 | 523 | 0.0601 | 0.0801 |
| 3×400 | 620 | 0.0470 | 0.0627 |
Selection note: before ordering, ask our engineers to confirm the maximum conductor operating temperature, short-circuit rating and sheath colour for Type 3023, plus the derating for your ambient temperature and grouping, and the permitted hanging length for shaft runs. Current ratings are given at 25 °C.
Standards & References
Applicable standards and compliance
- Design specificationMGM 109, the armoured fixed-installation power cable specification in the Turkish Hard Coal Enterprises MGM mining cable series (MGM 101, 109, 110, 111, 112, 115 and 118).
- Conductor referenceElectrolytic stranded copper conductors to IEC 60228 Class 2.
- Voltage scope1900/3300 V rated and 10 kV test voltage.
- ApprovalsMine-authority approvals, type-test reports and marking requirements are confirmed and quoted per order.
Construction
Material and build-up
Type 3023 is a round three-core cable. The PVC-insulated cores are laid up in contact with each other without individual metallic screens, bedded in PVC compound, and covered by two layers of galvanised steel wire and a special PVC outer sheath.
- Conductor: electrolytic stranded copper, IEC 60228 Class 2, 16 to 400 mm².
- Insulation: PVC, 2.2 mm up to 3×240 mm², 2.4 mm on 3×300 mm² and 2.6 mm on 3×400 mm²; a semiconductor separator layer is included.
- Lay-up: three unscreened cores laid up in contact with each other.
- Bedding: PVC-based bedding compound, 1.6 to 2.6 mm.
- Armour: two layers of flexible galvanised steel wire for tensile load, impact protection and an earth return path; a galvanised steel tape separator is optional.
- Outer sheath: special PVC compound, 2.0 to 3.3 mm depending on size.
FAQ
Selection questions
What is MGM 109 Type 3023 and how does it differ from the other MGM 109 types?
Type 3023 is the 1900/3300 V, three-core, unscreened, double-armoured type in the MGM 109 armoured cable specification of the Turkish Hard Coal Enterprises MGM series. The screened Type 3123 adds a copper tape screen on each core, and Type 3013 keeps the unscreened cores with a single armour layer. The 600/1000 V equivalents are Type 1023/1024 (double armour) and Type 1012/1013/1014 (single armour).
Type 3023 or Type 3013: double or single armour?
Pick Type 3023 for vertical shaft runs, steep inclines and routes with a high risk of impact, where the cable must carry its own weight. Type 3013 suits horizontal roadway runs on hangers; it is 4 to 6 mm smaller in diameter and 7 to 11% lighter for the same size, but it is offered only from 3×50 to 3×185 mm².
Type 3023 or the screened Type 3123?
If your mine's rules or protection scheme require an earthed screen on every 3.3 kV core, use Type 3123. Otherwise Type 3023 gives the same conductor sizes and current ratings in a smaller diameter.
Which details are needed for a quotation?
Send the type (3023), conductor size, drum length and total length, the route (shaft depth, incline, roadway, surface), whether the optional galvanised steel tape separator is needed, sheath marking, and the mine authority whose approval or test reports you need.
Request this cable.
Send the type (3023), conductor size, drum and total length, shaft or roadway route, optional steel tape separator and mine approval requirement.
Quality Assurance
Testing at every stage in our own workshop and laboratory, from incoming copper to the packed drum.
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
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
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
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
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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Need Pricing for This Cable?
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