1.Core Performance
Conductor Specifications
Fire Cable,It features four 22AWG (American Wire Gauge) conductors with a cross-sectional area of approximately 0.325 mm². Each conductor has a current carrying capacity of approximately 1.5-2A (depending on the insulation material and ambient temperature). 22AWG offers a balance of cost and performance for low-voltage signal transmission, making it suitable for minimizing signal attenuation over long wiring runs.
Insulation and Shielding
Basic: Polypropylene (PP) or polyvinyl chloride (PVC) insulation, typically with a temperature rating of 75°C-105°C, meeting the long-term operation requirements of fire alarm systems.
Enhanced: Select models feature a 100% aluminum foil shield to effectively suppress electromagnetic interference (EMI), making them suitable for high-interference environments such as industrial control and security surveillance.
Jacket Material: PVC jacket: Low cost, excellent flexibility, Flexible Cable Wire,suitable for vertical wiring (e.g., between floors).
Low-Smoke Zero-Halogen (LSZH) jacket: Releases minimal toxic gases during combustion, complies with EU RoHS standards, and is suitable for public spaces such as hospitals and schools. Flame-retardant jacket: Passes UL 1424/UL 1666 vertical flame tests, with a flame spread rate of ≤1.5m/min, ensuring circuit integrity in the event of a fire.
Electrical Performance
Rated voltage: 300V (compliant with UL standards), suitable for Low Voltage Power Cable signal transmission.
Insulation resistance: ≥100MΩ·km (20°C), ensuring stable signal transmission.
Capacitance: ≤50pF/m (1kHz), reducing high-frequency signal distortion.
2.Appearance and Structural Features
Conductor Arrangement
The four conductors are arranged in a star or parallel pattern, surrounded by a shield (if present) and jacket. Some models are color-coded (e.g., black, red, blue, white) for easy identification and wiring.
Marking and Certification
The jacket is printed with the model, specification, certification marks (e.g., UL, CE), and fire rating (FPLR/FPLP) for easy inspection and maintenance.
Physical Characteristics
Outer diameter: Approximately 6.0-8.0mm (depending on jacket thickness), suitable for installation in conduit or cable trays. Weight: Approximately 60 kg/km (PVC sheath), making it easy to transport and install.
3.Advantages
Multiple lines in one, reducing costs
A single cable integrates four signal transmission channels, reducing wiring and installation time, and lowering overall costs by approximately 30%.
Strong anti-interference capability
The shielded cable effectively resists electromagnetic interference generated by equipment such as inverters and motors, reducing the signal transmission bit error rate to <10⁻⁹.
Safe and reliable
The flame-retardant sheath and low-smoke, halogen-free properties increase evacuation time in fires and comply with the requirements of GB 50116, "Design Specifications for Automatic Fire Alarm Systems."
Flexible adaptability
Supports expansion from simple alarm systems to complex linkage control systems. A single cable can simultaneously transmit detector signals, power supply, and fault feedback.