Mining Phone Cable – Custom Shielded Telephone Cable Blue 2 Paired 0.64mm² PC/PE/SCR/XLPO 2x2x0.64

Mining Phone Cable – Custom Shielded Telephone Cable Blue 2 Paired 0.64mm² PC/PE/SCR/XLPO 2x2x0.64

This custom shielded telephone cable is specifically engineered for mine communication systems requiring reliable voice and data transmission with robust EMI protection in demanding underground environments.

The cable features two twisted pairs of 0.64mm² conductors. Each conductor utilizes PC plain copper Class 1 solid wire with 1/0.90 construction, providing excellent conductivity and mechanical strength for long-distance communication. HDPE insulation delivers stable dielectric properties and moisture resistance essential for underground mining applications. Core identification follows telephone standard color coding: white/blue and white/orange for clear circuit identification.

Non-hygroscopic filler materials maintain core geometry and prevent moisture ingress. Each pair is secured with Mylar taping, followed by an individual AL-PET (Aluminium/Polyethylene Terephthalate Laminate) foil screen with tinned copper drain wire 1/0.78, providing 100% EMI coverage for each communication channel. An overall Mylar taping secures the assembly, with a second AL-PET foil screen and tinned copper drain wire 1/0.78 delivering comprehensive shielding against external interference.

The outer sheath is XLPO cross-linked polyolefin in blue, offering LSZH (low smoke zero halogen), fire retardant, and UV stabilized properties essential for mining safety compliance. Rated -25°C to +70°C with 4kV spark test verification, this cable is ideal for underground mine telephone networks, emergency communication systems, and critical voice communication in hazardous mining environments.

Key Features & Technical Advantages

• 2 x 2 x 0.64mm² twisted pair for voice communication

• PC plain copper Class 1 solid 1/0.90 conductors for long-distance reliability

• HDPE insulation for moisture resistance and stable dielectric properties

• Telephone standard color coding: white/blue, white/orange

• Non-hygroscopic filler for moisture prevention

• Dual-layer shielding: individual AL-PET per pair + overall AL-PET

• Drain wires (1/0.78) for continuous grounding

• Mylar taping at pair and overall levels

• XLPO sheath blue, LSZH, fire retardant, UV stabilized

• -25°C to +70°C temperature range

• 4kV spark test verification

Specifications & Construction

Why Choose This Mining Shielded Telephone Cable

This dual-shielded telephone cable is specifically designed for reliable voice communication in the most demanding mining environments. PC plain copper solid conductors ensure long-distance signal integrity without degradation. HDPE insulation provides excellent moisture resistance critical for underground installations. The dual-layer shielding system—individual AL-PET screens per pair plus overall AL-PET screen—delivers exceptional EMI protection, ensuring clear voice communication even in electrically noisy mining environments with heavy machinery and variable frequency drives. Non-hygroscopic filler prevents moisture ingress, while XLPO LSZH blue sheath meets international mining safety standards for low smoke, flame retardancy, and UV resistance. With 4kV spark test verification, this cable is engineered for mission-critical mine communication systems.

Typical Applications – Solving Critical Mining Communication Challenges

• Underground Mine Telephone Networks: Provides reliable voice communication for miners, supervisors, and control rooms

• Emergency Communication Systems: Delivers fail-safe communication for mine evacuation and emergency response

• Shaft Communication: Supplies durable, shielded cabling for vertical shaft telephone systems

• Mine Refuge Stations: Enables critical voice communication in emergency refuge chambers

• Surface to Underground Links: Provides robust cabling for communication between surface operations and underground facilities

• Tunnel Communication: Supplies shielded telephone cabling for tunnel construction and transportation systems

• Hazardous Area Communication: Delivers LSZH, flame-retardant cabling for gas-prone mining environments

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FAQ

Q1: Why are solid copper conductors used for mining telephone cables?

A: Solid conductors provide lower resistance over long distances, superior mechanical strength, and stable signal transmission characteristics essential for reliable voice communication in mine shafts and tunnels.

Q2: What is the advantage of dual-layer AL-PET shielding?

A: Individual pair shielding eliminates crosstalk between phone lines, while overall shielding protects against external EMI from mining equipment, ensuring clear voice communication in electrically noisy environments.

Q3: Why is HDPE insulation specified for telephone cables?

A: HDPE offers excellent moisture resistance, stable dielectric properties, and mechanical durability, critical for maintaining signal integrity in wet underground mining conditions.

Q4: What do the drain wires provide in this shielded design?

A: Drain wires ensure continuous grounding throughout the cable length, maintaining shielding effectiveness and providing a reliable path for induced currents.

Q5: Why is XLPO LSZH blue sheath used for mining telephone cables?

A: XLPO provides LSZH safety (low smoke, zero halogen) and flame retardancy essential for underground mining, while blue offers high visibility for easy cable identification in dark tunnel environments.