1. Technical Section

Product Name: Noan‑A20F Aerial Telephone Cable

Application: Aerial telephone lines with twenty pairs, suitable for spans between poles where noise protection and environmental resistance are required.

Internal Structure:

Conductor: CCAM (Copper-Clad Aluminum) with 60/0 stranded configuration (60 fine strands)
Effective Conductor Area: Designed according to project requirements (e.g., ~0.13 mm² or ~0.17 mm² equivalent)
Pair Structure: 20 twisted pairs
Shield: Laminated aluminum foil longitudinally wrapped around the entire core (100% coverage)
Drain Wire: Auxiliary copper or tinned copper conductor for grounding the shield
Insulation: PVC or PE for aerial/ground applications
Outer Jacket: UV-resistant PVC or a composite jacket suitable for outdoor installation

Electrical & Performance Specifications:

Conductor Diameter: Reference ~0.60 mm for 20-pair cables
Conductor Resistance @20 °C (max): ≤186 Ω/km for ~0.60 mm conductor
Insulation Resistance (min): ≥5000 MΩ·km
Test Voltage: AC 1500 V / DC 2250 V (1 min) without breakdown
Operating Temperature: −20 °C to +60 °C
Capacitance & Impedance: Pair twist designed to reduce crosstalk and inter-pair interference
Minimum Bending Radius: 10× overall cable diameter (or per manufacturer instructions)

Installation & Maintenance:

Install in ducts, underground, or protected paths
Protect cable at crossing points with clamps or protective sleeves
Connect shield to ground at a single point
Avoid sharp bends and respect bending radius
Post-installation, test insulation resistance and line performance

2. Marketing / Content Section

Official Product Title:
Noan‑A20F — 20-Pair Aerial Telephone Cable with Full Foil Shield, 60/0 CCAM Conductor

Product Description:
Noanir proudly introduces the Noan‑A20F cable, a 20-pair aerial telephone cable with full foil shielding, designed for outdoor environments requiring simultaneous transmission of multiple telephone lines. The lightweight CCAM conductor with 60/0 strand construction, combined with proper insulation and aluminum foil shielding, ensures high performance against environmental interference. The Noan‑A20F is ideal for urban or intercity projects requiring multiple lines on aerial spans, offering durability, stable signal transmission, and reliable operation.

Key Features:

20 twisted pairs
Full foil shield around the core
Lightweight CCAM conductor, 60/0 strands
Durable design for aerial and underground installation
High insulation resistance
Reliable performance under environmental stress

3. Applications, Advantages, and Comparative Analysis

Suitable Applications:

Ground telephone lines with a high number of pairs
Underground or in-building telecommunications routes
Areas with high electromagnetic interference
Urban or rural regions needing multiple lines on a single path

Advantages:

Multiple lines provided in a single cable
Effective noise protection via foil shielding
Reduced installation cost by using a single cable for multiple pairs
Lighter and more cost-effective than full-copper alternatives

Limitations:

Higher conductor resistance compared to pure copper cables
Shield efficiency decreases if grounding is improper
Careful installation and adherence to standards required
Signal loss may be noticeable over very long distances

Comparison with Lower-Pair Models:

Higher core density may increase inter-pair crosstalk; proper pair twist and continuous foil are essential
Production cost is higher, but operational advantage of multiple lines in one cable is significant

Quality Assurance & Production Control: