Four-pair: Aerial Foil-Shielded (60/0 CCAM)

Technical Section

Product Name: Aerial Telephone Cable “Noan‑A4F”
Application: Four-pair aerial telephone lines with foil shielding for noise and interference reduction

Internal Structure:

• Conductor: CCAM (Copper‑Clad Aluminum) with 60/0 construction (60 fine strands)

• Effective Conductor Area: Designed according to project requirements (e.g., ~0.13 mm² or ~0.17 mm²)

• Twisted Pairs: Four twisted pairs

• Shield: Laminated aluminum foil wrapped longitudinally around the core (100% coverage)

• Drain Wire: Auxiliary conductor (copper or tinned copper) for grounding the shield

• Insulation: PVC or PE suitable for aerial/ground use

• Outer Jacket: UV-resistant PVC or composite for outdoor installation

Electrical and Performance Characteristics:

• Conductor Diameter: ~0.60 mm based on reference 4-pair cables

• Conductor Resistance at 20 °C (max): ≤ 186 Ω/km for ~0.60 mm conductor

• Insulation Resistance (min): ≥ 5000 MΩ·km

• Test Voltage: AC 1500 V (1 min) / DC 2250 V (1 min) without breakdown

• Operating Temperature: -20 °C to +60 °C

• Capacitance and Impedance: Twisted pair design reduces crosstalk and interference

• Minimum Bending Radius: ≥ 10 × overall cable diameter (or per manufacturer guidelines)

Installation and Maintenance Notes:

• Install in conduits, underground, or protected paths

• Protect areas passing obstacles with clamps or protective sleeves

• Connect shield to ground at a single point for optimal performance

• Avoid sharp bends; maintain minimum bending radius

• After installation, perform insulation resistance and line performance tests

Content Section for Website/Catalog

Noan‑A4F Four-Pair Aerial Foil-Shielded Telephone Cable

Description:
Noanir proudly presents the Noan‑A4F, a four-pair aerial telephone cable with foil shield, designed for outdoor use and suspended paths between poles. The lightweight CCAM conductors with full foil shielding reduce environmental noise while providing reliable voice transmission for four simultaneous lines. Ideal for urban or rural telecom projects requiring multiple lines along aerial routes, offering durability, signal quality, and cost efficiency.

Key Features:

• Four twisted pairs

• Full foil shielding around the core

• Lightweight CCAM conductor, 60/0 strand structure

• Durable design for aerial and underground installation

• High insulation resistance testing

• Reliable performance in outdoor conditions

Applications:

• Medium-density terrestrial telephone lines

• Underground or in-structure telecom routes

• Areas with moderate electromagnetic interference

• Urban or rural areas requiring multiple lines along one path

Advantages:

• Supports multiple lines simultaneously without separate cables

• Effective environmental noise protection via foil shield

• Lower installation costs using a single cable for multiple pairs

• Reduced weight and cost compared to fully copper cables

Limitations:

• Higher conductor resistance than full-copper cables

• Shield performance decreases if grounding is not properly executed

• Precise installation and adherence to standards are critical

• Signal loss may be noticeable over longer distances

Comparison to Lower-Pair Models:

• Four pairs have a denser core than one- or two-pair cables, increasing potential crosstalk; precise pair twist design and continuous foil are essential

• Slightly higher production cost, but advantage of multiple lines in a single cable

Quality Assurance and Production Control:

• Strict control of strand count (60 strands) and conductor uniformity

• Ensured foil thickness, adhesion, and quality

• Insulation, thermal aging, mechanical, and vibration testing on samples

• Product name, company name, technical specifications, and production date printed on cable

• Insulation resistance and performance test reports provided to the customer