Double-sheathed large-pair telephone cables (such as HYA53, HYAT53, etc.) have significant advantages in complex environ

1. High Mechanical Strength Requirements
Direct Burial: The dual-layer steel tape armor and polyethylene outer sheath structure resists soil pressure and puncture from sharp objects, making it suitable for direct burial in locations such as roads and farmland.
Rocky Areas: The longitudinally corrugated steel tape layer of the HYA53 cable adapts to geological movements, maintaining structural stability in complex terrains such as mountainous areas and mining areas.
2. Harsh Environmental Protection
Humid/Corrosive Environments: The aluminum-plastic composite sheath and waterproof filler provide a dual moisture barrier, making it suitable for use in high-humidity or corrosive areas such as coastal areas and chemical plants.
Extreme Temperature Regions: The operating temperature range extends from -30°C to 60°C, meeting the requirements of deployment in northern permafrost or high-temperature desert regions.
3. Critical Communications Infrastructure
Telecommunications Backbone: Supports 2048 kbit/s digital signal transmission and is used for core communication links such as urban telephone networks and broadband access.
Industrial Control Systems: Transmits monitoring signals in industries such as power and railways, such as substation data acquisition and track signal control.
4. Special safety requirements
Flame-retardant locations: Some models are ZRC flame-retardant certified and suitable for fire-sensitive areas such as tunnels and underground garages.
Electromagnetic interference areas: Shielded designs (such as FTP) effectively suppress electromagnetic interference generated by industrial equipment.