ANDI Ceramifiable Low Smoke Halogen-Free Fire-Resistant Polyolefin is a thermoplastic fire-resistant cable compound,specially developed for manufacturing special fire survival cables.Formulated with polyolefin matrix and functional ceramic inorganic fillers,it retains good flexibility,mechanical strength and excellent extrusion processability under normal working conditions.When exposed to flame or high temperature during fire accidents,it rapidly sinters into a dense,rigid,self-supporting ceramic shell without molten dripping.This ceramic layer serves as a protective armour for conductors,maintaining circuit integrity and restraining flame propagation,making it an advanced passive fire protection material for fire safety and automotive wiring systems.

 

　　ANDI Core Material Characteristics

 

　　-Ceramization performance:Flexible at ambient temperature.When heated above 450℃under flame attack,it quickly transforms into continuous hard ceramic layer.The ceramic shell stays intact without cracking,pulverization or molten dripping,eliminating secondary ignition risk.

 

　　-Fire resistance&circuit integrity:UL94 V‑0 flame retardancy,high oxygen index.The formed ceramic armour can withstand temperatures up to 1000℃.Cables made from this material can sustain power supply for over 90 minutes under fire,passing BS6387 CWZ,IEC 60331 and GB/T 19216 fire resistance tests including flame,water spray and mechanical vibration combined validation.

 

　　-Electrical insulation:Stable dielectric performance at room and elevated temperature.Volume resistivity≥10¹⁴Ω·cm,dielectric strength exceeding 25 kV/mm.The ceramic residue still retains reliable insulation after flame erosion to prevent leakage and short circuit.

 

　　-Low smoke&non-toxic property:Low smoke emission,halogen-free,no corrosive halogen acid gas released during combustion,reaching ZA1 smoke toxicity grade.High light transmittance preserves visibility for evacuation and rescue in confined spaces.Compliant with RoHS&REACH.

 

　　-Processing advantages:Thermoplastic granule material,fully compatible with conventional cable extrusion lines.It can be continuously extruded as insulation or sheath in one-step forming,simplifying cable production and improving manufacturing efficiency compared with traditional mica tape wrapping structure.

 

　　Main Application Scenarios in Special Cables

 

　　1.Fire-resistant power cables for power industry

 

　　Applied as insulation or sheath for medium and low voltage fire-resistant power cables.In power distribution systems,these cables guarantee continuous power supply for critical loads such as fire pumps,emergency lighting and fire alarm equipment during fire incidents.Widely adopted in data centres,high-rise buildings,subway tunnels and industrial power stations.

 

　　2.Fire service/fire alarm cables

 

　　The core application for fire signal and control cables used in fire protection systems.In fire emergencies,the ceramic layer protects signal conductors,keeping fire alarm,smoke detector and sprinkler control circuits operational.It ensures fire detection signals can be transmitted stably to trigger firefighting actions.

 

　　3.Automotive&new energy vehicle cables

 

　　Used for NEV battery PACK harnesses,high-voltage charging cables and vehicle internal control signal wires.Under normal driving conditions,it provides abrasion resistance,low-temperature flexibility and anti-vibration performance.Once battery thermal runaway occurs,the ceramic barrier blocks flame and high-temperature jet,avoids molten dripping-induced secondary short circuit,and protects emergency power circuits for vehicle safety systems and door unlocking.

 

　　4.Other special cable applications

 

　　Suitable for rail transit,offshore platform and mining special cables.It endures salt spray,humidity,vibration and mechanical impact in harsh environments,maintaining circuit integrity in tunnel or enclosed space fire events.

 

　　Case Benefits

 

　　This special cable project selects ANDI Ceramifiable Low Smoke Halogen-Free Fire-Resistant Polyolefin  as insulation and sheath material.Different from mica tape layered wrapping,this thermoplastic material adopts direct extrusion process,shortening production cycle and improving cable structural consistency.It also brings lighter cable weight and smaller bending radius,convenient for transportation and field laying.

 

　　When fire breaks out,the in-situ formed ceramic armour isolates heat and flame,preserving power and signal continuity for a long duration.Low-smoke halogen-free formula greatly reduces toxic gas hazards in enclosed environments.The material balances electrical property,mechanical reliability,fire safety and production cost,meeting stringent requirements of fire protection,power engineering and automotive wiring standards.

 

　　Key Takeaways

 

　　-ANDI Ceramifiable Low Smoke Halogen-Free Fire-Resistant Polyolefin,thermoplastic cable compound

 

　　-Rapid ceramization at 450℃,forms tough ceramic shell,no dripping while burning

 

　　-UL94 V-0,withstand up to 1000℃;supports≥90 min fire survival,passes BS6387 CWZ

 

　　-Low smoke,halogen-free,ZA1 low toxicity,RoHS&REACH compliant

 

　　-Direct extrusion for cable insulation/sheath,compatible with standard cable production lines

 

　　-Main applications:fire-resistant power cables,fire alarm cables,NEV automotive special cables,rail&marine cables

 

　　-Maintain circuit&signal integrity under fire,prevent secondary short circuit and flame spread