(N)3GHSSHCH-Tunnel-2
(N)3GHSSYCY Cable for Tunnel and Underground Mining
(N)3GHSSHCH-Tunnel cable
(N)3GHSSHCH-Tunnel-3
  1. (N)3GHSSHCH-Tunnel-2
  2. (N)3GHSSYCY Cable for Tunnel and Underground Mining
  3. (N)3GHSSHCH-Tunnel cable
  4. (N)3GHSSHCH-Tunnel-3

(N)3GHSSYCY Cable for Tunnel and Underground Mining

The Rated 3.6/6kV–12/20kV (N)3GHSSYCY Rubber Cable as feeder cable for power supply of shiftable MV equipment, e.g. compressure resistant transformers, for underground mining applications as well as for tunnel sites.

  • Voltage3.6/6kV–12/20kV
  • ConductorClass 5 stranded copper
  • InsulationEPR, 3GI3
  • ArmourGalvanized steel wire braid
  • Phase conductor25 – 150 mm²
  • Overall diameter47.2 – 75.3 mm
  • Max. tensile load1125 – 9700 N
  • Max. conductor temperature90 °C

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Product overview

This (N)3GHSSYCY cable is designed for harsh industrial environments. Widely used in underground mines, tunnel engineering and heavy-duty mobile equipment. Suitable for medium-voltage power transmission of mining machinery, conveyors and hoists.

Tebaoflex (N)3GHSSYCY cables is manufactured according to VDE 0250 standard. One of the main applications is the connection of mobile equipment in hazardous environments in mines and underground excavation operations. In addition to this, it adapts to frequent bending, pulling and outdoor exposure. Also applicable for power supply in construction sites and industrial plants with strict mechanical and safety requirements.

N3GHSSYCY cable Working Temperature: operate in ambient temperatures of -40°C to +80°C when fixed+5°C to +80°C when flexed, with monitoring cores for safety.

Class 5 stranded copper conductors. Galvanized steel wire braid armor offers high tensile strength. PVC inner/outer sheaths provide oil and moisture resistance.

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Application & Features

Selection overview

Characteristics of Tunnel Underground Mining Cable

  • resistant to: oil, ozone, solvents, petrol, acids, chemicals, greases
  • abrasion-resistant
  • Excellent tear, impact and abrasion resistant
  • Flame retardant
  • UV, sunlight, ozone and oil resistant
  • Embossing marking for easy identication
  • oil-resistant acc. to DIN VDE 0473-811-404 / DIN EN 60811-404/ IEC 60811-404
(N)3GHSSYCY-tebaoflex-cable
(N)3GHSSYCY cable

Specifications

Technical data

3.6/6kV~12/12kV (N)3GHSSYCY Cable Technical Parameter

VOLTAGE NO. OF CORES NOMINAL CROSS SECTIONAL AREA(mm²) CONDUCTOR DIAMETER MINIMUM OVERALL DIAMETER MAXIMUM OVERALL DIAMETER MAXIMUM TENSILE LOAD
kV (PHASE + EARTH + CONTROL+ÜL) Phase Conductor Earth Conductor Control Conductor mm mm mm N
3.6/6 3+3+3+ÜL 25 25/3E 2.5ST 6.1 47.2 52.1 1125
3.6/6 3+3+3+ÜL 35 25/3E 2.5ST 7.2 49 54 1575
3.6/6 3+3+3+ÜL 50 25/3E 2.5ST 8.9 52.5 57.8 2250
3.6/6 3+3+3+ÜL 70 35/3E 2.5ST 10.6 56.1 61.6 3150
3.6/6 3+3+3+ÜL 95 50/3E 2.5ST 12.3 60.3 66.2 4275
3.6/6 3+3+3+ÜL 120 70/3E 2.5ST 13.8 63.8 70 5400
3.6/6 3+3+3+ÜL 150 70/3E 2.5ST 15.5 67.2 73.7 6750
6/10 3+3+3+ÜL 25 25/3E 2.5ST 6.1 47.2 52.7 1125
6/10 3+3+3+ÜL 35 25/3E 2.5ST 7.2 49 54.6 1575
6/10 3+3+3+ÜL 50 25/3E 2.5ST 8.9 52.5 58.4 2250
6/10 3+3+3+ÜL 70 35/3E 2.5ST 10.6 56.1 62.2 3150
6/10 3+3+3+ÜL 95 50/3E 2.5ST 12.3 60.3 66.8 4275
6/10 3+3+3+ÜL 120 70/3E 2.5ST 13.8 63.8 70.7 5400
6/10 3+3+3+ÜL 150 70/3E 2.5ST 15.5 67.2 74.4 6750
8.7/15 3+3+3+ÜL 25 25/3E 2.5ST 6.1 50.5 55.6 4530
8.7/15 3+3+3+ÜL 35 25/3E 2.5ST 7.2 52.3 57.6 5000
8.7/15 3+3+3+ÜL 50 25/3E 2.5ST 8.9 55.8 61.3 5740
8.7/15 3+3+3+ÜL 70 35/3E 2.5ST 10.6 59.3 65.2 6840
8.7/15 3+3+3+ÜL 95 50/3E 2.5ST 12.3 62.8 68.9 8020
8.7/15 3+3+3+ÜL 120 70/3E 2.5ST 13.8 66.2 72.6 9270
12/20 3+3+3+ÜL 25 25/3E 2.5ST 6.1 52.9 58.2 4820
12/20 3+3+3+ÜL 35 25/3E 2.5ST 7.2 54.7 60.2 5290
12/20 3+3+3+ÜL 50 25/3E 2.5ST 8.9 58.3 64 6120
12/20 3+3+3+ÜL 70 35/3E 2.5ST 10.6 61.7 67.8 7210
12/20 3+3+3+ÜL 95 50/3E 2.5ST 12.3 65.2 71.5 8410
12/20 3+3+3+ÜL 120 70/3E 2.5ST 13.8 68.7 75.3 9700

Thermal parameters of (N)3GHSSYCY Tunnel Underground Mining Cable

  • Max. operating temperature of the conductor 90 °C
  • Max. short circuit temperature of the conductor 250 °C
  • Ambient temperature for fixed installation min -40 °C ; max +80 °C
  • Ambient temperature in fully flexible operation min 5 °C ; max +60 °C

Construction

Material and build-up

(N)3GHSSYCY Mining Tunnel Cable Construction

  • Voltage: 3.6/6kV ~ 18/30kV
  • Conductor: Bare electrolytic copper, finely stranded (class 5)
  • PE-Conductor: Individually laid-up concentrically around each main core
  • Insulation: PROTOLON, Basic material: EPR, Compound type: Special compound, better 3GI3
  • Electrical field control: Inner and outer semiconductive layer of semiconductive rubber, for 6kV outer semiconductive layer only
  • Core identification Main cores: Natural color with black semiconductive layer, Control cores: Black with white digits
  • Core arrangement: Three main cores laid-up, one control core in each outer interstice
  • Inner sheath: PVC based plastic compound, type: DMV6
  • Monitoring conductor: Conductive tape and overall concentric copper wire spinning
  • Intermediate sheath: PVC based plastic compound, type: DMV6
  • Armouring: Braid of galvanized steel wires
  • Outer sheath: PVC-based thermoplastic compound, type: DMV6,
  • Color: Red
Conductor: Flexible electrolytic stranded tinned copper wire DIN VDE 0295 Class 5
Insulation
Main Cores: 3Gl3 type EPR compound
Pilot Control Cores: 3Gl3 type EPR compound
Electrical Field Control: Extruded inner and outer rubber semiconductive layer For 3.6/6 kV cables outer semiconductive layer only
Protective Conductor: Made of plain copper wires or copper wire braiding laid up concentrically around each main core
Core Identification
Main Cores: Natural coloring, design acc to DIN VDE 0250 Part 1
Pilot Cores: Black colored and number coded
Lay Up: Three main conductors laid-up with three pilot control cores in the outer interstice.Protective cores are concentricalty wrapped over insulation of power cores
Inner Sheath: YM5 type PVC compound
Monitoring Conductor: Semioonductive tape + overall concentric lay of copper wires and syntetic tape over wires
Inner Sheath: PVC compound type DMV6 acc. to DIN VDE 0276-603
Armour: Galvanized steel wire braiding, coverage minimum 75% ST2 Type to IEC60502
Outer Sheath: PVC compound type DMV6 acc. to DIN VDE 0276-603, Red or Black

More Details

Comparison and references

(N)3GHSSYCY Tunnel Underground Mining Cable Installation Instructions

coal-mining-cable

✔ Firstly, Before installation, inspect (N)3GHSSYCY Cable for damage and verify specifications match operating requirements.

1. Avoid dragging, sharp friction and excessive bending;
2. follow the specified minimum bend radius.
3. Keep cables away from high-temperature sources and corrosive substances.

✔ Secondly, during laying, ensure proper tension to prevent overstretching the steel wire braid armor.

1. For underground and mobile use, fix cables securely with dedicated fixtures.
2. Terminate cores strictly per electrical standards, guaranteeing tight connections and good insulation.

✔ Lastly, after installation, conduct insulation and continuity tests.

Do not operate the cable until all inspections pass. Wear protective gear during work and comply with local electrical safety regulations at all times.

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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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