1. Technical Section

Product Name: Noanir-TF1 Single-Core Telephone Cable
Application: Internal building telephone lines, simple voice connections over short distances

Internal Structure:

Conductor: Solid annealed copper
Nominal Conductor Diameter: 0.50 mm (~0.20 mm² cross-section)
Insulation: Telecommunication-grade PVC, thickness ~0.20 mm
Outer Jacket: Telecommunication-grade PVC (light gray), thickness ~0.50 mm
Marking: Printed on the jacket with the product name “Noanir-TF1” at regular intervals

Electrical and Performance Specifications (Based on Standard References):

Conductor resistance at 20°C: Max ~80 Ω/km (for 0.20 mm²)
Insulation resistance (minimum): ≥ 5000 MΩ·km
Insulation test voltage: 1.5 kV for 1 minute
Estimated capacitance: ~60 pF/m
Operating temperature: -10°C to +60°C
Minimum bending radius: 6 × overall cable diameter
Average allowable tensile strength: ~50 N

Standards and Quality Notes:

Reference telephone standards (e.g., TOT Specification) are used in similar cable manufacturing.
In foreign examples of telephone cables, copper conductors of 0.5 or 0.65 mm with conductor resistance up to ~92 Ω/km are common.
For internal telephone cables (class CW1308), PVC insulation and jacket are used, with a recommended operating temperature of 0 to +70°C.
In single-core PVC cables for 1000 V, the permissible current is ~3 A, but for telephone applications, the current is much lower.

Installation and Maintenance Notes:

Avoid excessive tension during installation
Maintain minimum bending radius
Install with adequate distance from power cables
In humid areas or where water ingress is possible, use protective conduit or additional insulation
After installation, test insulation resistance and telephone functionality

2. Content Section (For Website / Catalog)

Title: Noanir-TF1 Single-Core Telephone Cable — An Economical and Reliable Solution for Internal Lines

Full Description:
At Noanir Company, we are proud to present the Noanir-TF1 cable, a single-core, non-foil telephone cable designed for use in internal building lines. With solid annealed copper conductors and telecommunication-grade PVC insulation, this cable ensures high-quality voice signal transmission over short distances. Its simple and cost-effective design makes it an excellent choice for internal projects. High durability, safety testing, and standard outer jacket are among its key features.

Key Features:

High-quality pure copper conductor
Durable telecommunication-grade PVC insulation
Simple single-core design
Easy installation and low maintenance
High insulation resistance
Efficient for voice applications
Identifiable according to standard telecom cable color coding

3. Applications, Advantages, and Comparison

Suitable Applications:

Internal building telephone lines
Simple voice functions over short distances
Low-noise environments without a high number of lines
Placement in ducts or protective pathways

Advantages:

Lower production cost compared to more complex cables
Easy installation and maintenance
Suitable for small and internal projects
Compatible with basic voice systems

Disadvantages:

More sensitive to noise compared to twisted-pair cables
Limited distance and signal quality over longer routes
Requires additional protection for outdoor or harsh environments

Comparison with Twisted-Pair Cable:

Twisted-pair cables reduce interference through pair twisting; single-core cables lack this advantage
For simple voice applications over short distances, single-core cables are more economical
For outdoor or long-distance applications, twisted-pair or more ruggedly-jacketed cables are preferable

Quality Assurance and Production Notes:

Use of PVC with heat and abrasion-resistant additives
Precise control of insulation and jacket thickness
Sample testing at various temperatures
Accurate printing of product name, manufacturing date, and technical specifications on the cable
Insulation resistance test certificates provided for each production batch