Characteristics and use occasions of several fire-resistant and flame-retardant cables

May 27, 2025

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1. NH-YJV: Fire-resistant cross-linked polyethylene insulation, PVC sheathed power cable can be laid indoors, in tunnels and in pipelines, and can withstand certain laying traction, but the cable cannot withstand external forces, and single-core cables are not allowed to be laid in magnetic material pipelines. If it is necessary to withstand mechanical external forces, add steel belt armor. Suitable for special occasions, such as large-capacity power plants, nuclear power plants, subways, high-rise buildings, etc.
2. YJV: Cross-linked polyethylene insulation, PVC sheathed power cable can be laid indoors, in tunnels and in pipelines, and can withstand certain laying traction, but the cable cannot withstand external forces, and single-core cables are not allowed to be laid in magnetic material pipelines. If it is necessary to withstand mechanical external forces, add steel belt armor.
3. ZR-VV: Flame-retardant PVC insulation, PVC sheathed power cable can be laid indoors, in tunnels, cable trenches, pipelines, flammable and severely corrosive places, but cannot withstand mechanical external forces. If it needs to withstand mechanical external forces, add steel belt armor. Features: In the case of open flame burning, remove the fire source, and it will automatically extinguish in ≤12s.
4. ZR-YJV: Flame-retardant cross-linked polyethylene insulation, polyvinyl chloride sheathed power cable can be laid indoors, in tunnels and pipelines, and can withstand certain laying traction, but the cable cannot withstand external forces, and single-core cables are not allowed to be laid in magnetic material pipelines. If it needs to withstand mechanical external forces, add steel belt armor. Features: In the case of open flame burning, remove the fire source, and it will automatically extinguish in ≤12s.
5. NH-VV: Fire-resistant polyvinyl chloride insulation, polyvinyl chloride sheathed power cable can be laid indoors, in tunnels, cable trenches, pipelines, flammable and severely corrosive places, but cannot withstand mechanical external forces. If it needs to withstand mechanical external forces, add steel belt armor. Suitable for special requirements, such as large-capacity power plants, nuclear power plants, subways, high-rise buildings, etc.

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