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0.66/1.14kV Mining Power Cable 3+1 Core Rubber Sheathed Flexible

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F. T Cable Co., Ltd.

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0.66/1.14kV Mining Power Cable 3+1 Core Rubber Sheathed Flexible

Place of Origin : Shaanxi, China

Insulation Material : Rubber

Certification : Coal Mine Safety Certification

Certificate : ISO9001/CCC

Sample : Contact to get free sample

Supply Ability : 800–1500 kilometers per month

Price : usd 1 ～ 10/ meter

Packaging Details : Wooden Drum、cardboard box、wooden pallet

MOQ : 1000m

Payment Terms : L/C,D/A,D/P,T/T,Western Union

Model Number : MYP

Type : High Voltage

Warranty : 100%quanlified

Delivery Time : 30 days

Rated Current : 200A-2000A

Hot Sale Size : 70mm, 120mm,400mm,95mm

MOQ : 1000

Rated Voltage : 0.3/0.5 KV.

Brand Name : F.T

Conductor Material : Copper

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1. Product Construction & Design
This 4-core (3 power + 1 ground) rubber-sheathed flexible mining cable is purpose-built for underground coal mining mobile equipment. Its cross-section shows a 3+1 balanced core design, with three large power conductors and one smaller ground conductor, wrapped in color-coded rubber insulation (red, green, yellow, black) and encased in a heavy-duty black rubber sheath. The stranded copper conductors offer superior flexibility, while the compact stranding ensures uniform stress distribution during repeated bending and dragging in mine tunnels.

Parameter	Specification
Rated Voltage	0.66/1.14kV
Core Configuration	3×Main + 1×Ground
Conductor Material	Annealed Stranded Copper
DC Resistance (20°C)	≤4.61 Ω/km (for 4mm² main cores)
Insulation Resistance	≥100 MΩ·km
Operating Temperature	-25°C to +65°C (continuous)
Minimum Bending Radius	Static: 6×D; Dynamic: 8×D
Flame Retardancy	IEC 60332-3 Class B (Self-extinguishing)
Certification	MA (Coal Mine Safety Mark), ISO9001

0.66/1.14kV Mining Power Cable 3+1 Core Rubber Sheathed Flexible

3. Key Performance & Mining Advantages

✅ Built for Underground Toughness

The cable’s rubber sheath is formulated to withstand the extreme conditions of coal mines:

Mechanical Durability: Resists abrasion from coal/rock surfaces, impact from falling debris, and compression under heavy machinery.
Flexibility: Multi-strand copper and high-elongation rubber materials allow repeated bending without cracking, ideal for moving equipment like shearers and loaders.
Flame Safety: Halogen-free flame retardant materials ensure the cable self-extinguishes, preventing fire spread in methane-rich environments.

✅ Electrical & Environmental Stability

Low Power Loss: High-purity copper conductors maintain low resistance, minimizing voltage drop and heat buildup during continuous operation.
Moisture & Chemical Resistance: The rubber insulation and sheath block water ingress and resist mine water, hydraulic oils, and corrosive dust.
Long Service Life: UV-stabilized rubber materials resist aging, even in damp, high-temperature mine tunnels.

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