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

by:AAA     2020-03-17
1. NH-YJV: fire-resistant XLPE insulated and PVC sheathed power cables can be laid indoors, in tunnels and in pipelines, and can withstand certain laying traction, but the cables cannot withstand external forces, single-core cables are not allowed to be laid in magnetic material pipes. If need to bear the mechanical external force plus steel belt armored. It is suitable for special requirements, such as large-capacity power plants, nuclear power plants, subways, high-rise buildings, etc. 2. YJV: XLPE insulated and PVC sheathed power cables can be laid indoors, in tunnels and in pipelines, and can withstand certain laying and traction channels, but the cables cannot withstand external forces, single-core cables are not allowed to be laid in magnetic material pipes. If need to bear the mechanical external force plus steel belt armored. 3. ZR-VV: flame retardant PVC insulated and PVC sheathed power cables can be laid indoors, in tunnels, cable trenches, pipelines, flammable and severely corroded places, but cannot withstand external mechanical forces. If need to bear the mechanical external force plus steel belt armored. Features: In the case of open flame burning, remove the fire source, ≤ 12s automatically extinguished. 4, ZR-YJV: flame retardant XLPE insulation, Poly chlorine B flame sheath power cable, can be laid in indoor, tunnel and pipeline, can withstand a certain laying traction, however, the cable cannot bear the external force, and the single-core cable is not allowed to be laid in the magnetic material pipeline. If need to bear the mechanical external force plus steel belt armored. Features: In the case of open flame burning, remove the fire source, ≤ 12s automatically extinguished. 5. NH-VV: fire-resistant PVC insulated and PVC sheathed power cables can be laid indoors, tunnels, cable trenches, pipelines, flammable and severely corroded places, but cannot withstand external mechanical forces. If need to bear the mechanical external force plus steel belt armored. It is suitable for special requirements, such as large-capacity power plants, nuclear power plants, subways, high-rise buildings, etc.
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