Low Smoke Zero Halogen (LSZH) fire-resistant twisted pair cables are engineered to preserve electrical continuity in fire conditions while drastically reducing hazardous fume release. In contrast to conventional PVC-insulated varieties, they produce zero halogen-based toxins and only faint, translucent smoke under intense thermal exposure. This makes them critical for safeguarding both human occupants and delicate electronics within enclosed or poorly ventilated spaces.
Key Specifications & Construction
Circuit Integrity
Engineered with flame-resistant materials-such as multilayered mica tape or specialized silicone rubber-these cables sustain performance even when directly exposed to fire, typically meeting ratings of 2-hour endurance at 750°C to 950°C.
Twisted Pair Design
Conductor pairs are helically wound to minimize electromagnetic interference (EMI) and crosstalk, guaranteeing dependable data or signal transmission in industrial settings.
Shielding Systems
Often equipped with an Aluminum/Polyester foil wrap plus a tinned copper drain wire, delivering complete protection against signal attenuation.
Outer Jacket
Constructed from a thermoplastic LSZH compound that is inherently self-extinguishing and meets stringent flame-retardancy requirements.
Common Applications
The mandatory adoption of these cables is particularly pronounced across three major domains where indoor installation, limited ventilation, or dense occupancy is typical:
Emergency & Safety: Fire alert systems, voice-assisted passenger evacuation, and emergency luminaires.
Mobility Infrastructure: Subterranean transit corridors, underground rail projects, air travel facilities, and maritime platforms.
Process & Building Automation: Data highways like EIB/KNX, closed-loop controls within BMS frameworks, and auxiliary signaling channels.
Packaging
Finished product + wooden barrel packaging
Hot Tags: lszh fire resistant twisted pair wire, China lszh fire resistant twisted pair wire manufacturers, suppliers, factory, electric wire, LSZH Fire Resistant Wire, LSZH Flexible Wire, LSZH Insulated Flexible Wire, PVC Insulated Flexible Wire, XLPE Insulated Wire
