Product Introduction

BTTZ 450/750V Mineral Insulated Copper Conductor Core Industrial Mining Copper Sheath cable is a core power distribution cable specially designed for extreme mining environments. With Copper Sheath as the core protective structure, it combines high-strength impact resistance and strong corrosion resistance, perfectly adapting to the harsh working conditions of Mining Application Cable. Rated at 450/750V, the product adopts a three-layer structure of high-purity copper conductor (Grade T2) + inorganic mineral insulation + seamless Copper Sheath (thickness ≥1.0mm), holding a Class A fire resistance rating (950~1000℃) and maintaining stable power supply for more than 90 minutes in fire. It can resist moisture, dust, acid-base corrosion and mechanical impact in mine underground, fully complying with GB/T 19666-2019 and IEC 60702-1 mining cable standards.

As a professional Mining Application Cable, its conductor cross-section covers 10~240mm², and the single-core design is suitable for high-voltage power supply of mining equipment. With a bending radius of ≥15D (D = cable outer diameter), it can be flexibly laid in narrow underground spaces without additional protective sleeves; Copper Sheath not only has excellent electromagnetic shielding performance, but also can be directly used as a grounding conductor, simplifying the installation process of mining power distribution system and reducing construction costs. Halogen-free and heavy metal-free, it releases no toxic smoke when burned, passes RoHS certification, and has a service life of more than 30 years under normal working conditions. Widely used in underground power distribution scenarios such as coal mines, metal mines and non-metallic mines in more than 30 countries around the world, it is the first choice of Mining Application Cable for high safety and reliability in mining projects. The factory direct supply model eliminates intermediate links, providing on-demand customization services and fast delivery guarantees.

Core Technical Specifications

Parameter Category	Specific Specification
Product Model	BTTZ
Rated Voltage	450/750V
Conductor Material	Oxygen-free Copper
Conductor Cross-Section	10mm², 16mm², 25mm², 35mm², 50mm², 70mm², 95mm², 120mm², 150mm², 185mm², 240mm²
Insulation Material	High-density Inorganic Mineral Insulation
Sheath Material	Seamless Extruded Copper Sheath
Core Specification	Single-core
Fire Resistance Rating	Class A
Working Temperature Range	-60℃~250℃
Minimum Bending Radius	≥15D
Flame Retardant Grade	IEC 60332-3 Category A
Protection Performance	Waterproof , Dustproof, Acid-Base Resistant , Mechanical Impact Resistant
Product Color	Copper Sheath Natural Color
Application Scenarios	Coal Mine Underground, Metal Mine Mining, Non-Metal Mine Driving Face, Mining Hoist/Ventilator/Water Pump Power Supply
Payment Term	T/T , L/C
Minimum Order Quantity	50m
In-stock Delivery Cycle	Conventional Specifications (10~95mm²): Shipped within 7 days
Custom Delivery Cycle	Special Cross-Section (120~240mm²): 15~20 days

Core Selling Points

Triple Protection of Copper Sheath:

Seamless copper sheath with thickness ≥1.0mm, integrating impact resistance, corrosion prevention and electromagnetic shielding functions. It can resist rock collision, acid-base water seepage and dust erosion in mine underground, no need for additional piping, reducing maintenance costs.

Mining Application Cable Working Condition Adaptation:

Specially designed for mining, with a wide temperature working range of -60℃~250℃, adapting to underground high and low temperature environments; IP67 waterproof grade, can operate normally in water-accumulated areas, meeting the power supply needs of core mining equipment such as mining driving and hoisting.

Class A Fire Resistance Safety Guarantee:

Inorganic mineral insulation + copper sheath structure, non-combustible and non-power-off at 950~1000℃ high temperature, passing mining fire resistance certification, gaining critical time for underground personnel evacuation and emergency shutdown of equipment.

High Conductivity & Low Loss Transmission:

Grade T2 oxygen-free copper conductor with conductivity ≥98%, current loss 5%-8% lower than ordinary mining cables, which can reduce mining power distribution energy consumption in long-term use, adapting to high-current needs of high-power mining equipment (such as hoists, ventilators).

Full Specification In-stock Supply:

Covering 10~240mm² full cross-section, conventional specifications (10~95mm²) are in sufficient stock, shipped within 7 days, which can quickly respond to emergency replenishment needs of mining projects and avoid construction delays.

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