Flame retardant low smoke halogen-free cable

Flame retardant low smoke halogen-free cableThis product is suitable for applications with high requirements for cable flame retardant properties, such as subways, high-rise buildings, shopping malls, theaters, power stations, chemical factories, urban squares, and other public utilities with AC rated voltage of 450/750V and below. The halogen-free and low smoke characteristics of cables result in slow spread, low smoke concentration, high visibility, low release of harmful gases, and easy evacuation of personnel in the event of a fire. The low corrosiveness of combustion gases also avoids damage to instruments and equipment. The low halogen and halogen-free characteristics greatly improve the aging resistance, UV resistance, and other radiation resistance of cable materials, thereby extending the service life of cables.

Flame retardant low smoke halogen-free cableMain technical indicators
1. The cable should withstand a 3kV power frequency voltage test at ambient temperature without breakdown for 5 minutes
2. The transmittance of the cable should comply with the following table
Cable outer diameter D (mm) transmittance (%) ≥ D>40705<D ≤ 105010<D ≤ 4060D ≥ 540
3. Non flammability (flame retardant properties) of cables: They should pass the Class B bundled combustion test in GB12666.5-90. The vertical combustion test of a single wire and cable should pass GB12666.2-90
4. The release amount of halogen acid gas complies with IEC754-1
5. The pH value and conductivity of the combustion gas comply with IEC754-2, with pH ≥ 4.3 and conductivity ≤ 10 μ S/mm.
Code, name and meaning
Project Code Meaning Series Code DLDWLDK Low Smoke, Low Halogen, Low Smoke, Zero Halogen Control Cable Insulation Material VJEF Polyvinyl Chloride Crosslinked Polyolefin Thermoplastic Sheath Material VGS Polyvinyl Chloride Thermosetting Sheath Thermoplastic Sheath Shielding Material PP2 Copper Mesh or Tin Plated Copper Mesh Copper Tape/Plastic Composite Tape Armoring Material 2232 Steel Strip Fine Steel Wire Conductor Type ABR Single Strand Conductor 7-Strand Stranded Conductor Multi Strand Stranded Conductor