Shenghua Flexible Fireproof Cables: Engineering Survival in Extreme Fire Conditions

Shenghua Flexible Fireproof Cables: Engineering Survival in Extreme Fire Conditions​

In high-risk environments like subway tunnels, hospitals, or petrochemical plants, ​​traditional cables fail catastrophically during fires—melting at 300°C and emitting lethal halogens​​. The 1987 King’s Cross fire (toxic smoke killed 31 people) exposed this fatal flaw. Shenghua’s ​​Flexible Fireproof Cables​​ (0.6/1kV, 750V) redefine safety with copper-sheathed inorganic insulation, zero-halogen materials, and compliance with ​​JG/T313-2014/IEC 60702-2002​​, ensuring circuit integrity even at 1,000°C for 3 hours

​​Breakthrough Design: The Four-Layer Life-Saving Architecture​​

Shenghua’s cable structure is engineered for maximum resilience:

1. ​​Stranded Copper Conductor (IEC 60228 Class 2)​​:
   • ​​15x Bend Flexibility​​: Survives vibrations in rail tunnels or seismic zones without fracture
      
2. ​​Inorganic Insulation (Mica/Mineral-Based)​​:
   • ​​1,000°C/3h Circuit Integrity​​: Outperforms generic XLPE (fails at 250°C) and resists radiation in nuclear facilities
      
3. ​​Copper Sheath (Integrated PE Wire)​​:
   • ​​Dual Grounding & EMI Shielding​​: Eliminates separate grounding wires, cutting installation costs by 20%
      
4. ​​LSZH Outer Sheath​​:
   • ​​<100 ppm Toxic Gas Emission​​: Prevents hydrochloric acid formation during fires (per IEC 60754)
      

​​Critical Applications: Where Shenghua Saves Lives​​

• ​​Public Transit Tunnels​​:
  Maintains power to emergency lighting during fires (e.g., London Underground’s post-King’s Cross LSZH mandate), with ​​>60% light transmittance​​ through smoke
   
• ​​High-Rise Hospitals​​:
  Zero-halogen sheath prevents toxic gas buildup in stairwells during evacuations.
• ​​Petrochemical Plants​​:
  Inorganic insulation resists oil/acid corrosion, while copper sheath withstands mechanical stress from pipe ruptures.

​​Certifications: Trusted by Global Safety Standards​​

Shenghua’s adherence to ​​JG/T313-2014​​ (China) and ​​IEC 60702-2002​​ (Global) validates:

• ​​Flame Retardancy​​: Exceeds IEC 60332-3-22 vertical flame tests (flame spread ≤1.5m)
   
• ​​Toxicity Control​​: Halogen-free materials pass IEC 60754-1 gas emission tests
   
• ​​Interoperability​​: Compatible with Siemens/ABB switchgear without retrofitting.

​​Technical Superiority vs. Generic Fireproof Cables​​

​​Why Engineers Specify Shenghua​​

1. ​​Installation Efficiency​​:
   • Flexibility allows ​​7.5× bend radius​​, slashing labor time in tight spaces like ship engine rooms
      
2. ​​Total Cost of Ownership​​:
   • ​​30-year lifespan​​ reduces replacements despite 15–20% higher upfront cost.
3. ​​Eco-Safety​​:
   • Recyclable LSZH sheath aligns with EU RoHS/REACH, avoiding PFAS "forever chemicals"