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High voltage cable

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High voltage cable

  • 高压电缆
  • Category: High-voltage cables

  • hit count:
  • Release Date: 2018/08/16
  • Online Inquiry
Detailed introduction
High voltage cable is a kind of power cable , which refers to the power cable used for transmission between 1kv and 1000kv, and is mostly used for power transmission and distribution.
  • Chinese name

  • High voltage cable

  • Foreign name

  • High voltage cable

  • Category

  • power cable

  • Conductor material

  • Copper, aluminum, steel core aluminum stranded wire

  • Implementation standards

  • GB / T12706-2008

  • Installation temperature

  • Above 0 ℃

  • Normal use temperature

  • 90 ℃

kind


The main types of medium voltage cables are YJV cables, VV cables, YJLV cables, and VLV cables.
YJV cable full name XLPE insulated PVC sheathed power cable (copper core)
VV cable full name PVC insulated PVC sheathed power cable (copper core)
YJLV cable full name XLPE insulated PVC sheathed aluminum core power cable
VLV cable full name PVC insulated PVC sheathed aluminum core power cable
Due to the excellent conductivity of copper conductors, more and more projects use copper core power cables as the main road for power supply systems, while aluminum core power cables have fewer applications, especially in higher voltage power systems. The more cables there are.

structure


The components of the high-voltage cable from the inside to the outside include: conductor, insulation, inner sheath, filler (armoring), and outer insulation. Of course, armored high-voltage cables are mainly used for burial, which can resist high-intensity compression on the ground and prevent other external forces from being damaged.

Model and use


NA-YJV, NB-YJV, XLPE insulated PVC sheathed A (B) fire-resistant power cables can be laid in rooms, tunnels and pipes that require fire resistance.
NA-YJV22, NB-YJV22, XLPE insulated steel tape armored PVC sheath A (B) fire-resistant power cables are suitable for laying in the ground when fire resistance is required, not suitable for laying in pipelines.
NA-VV, NB-VV, PVC insulated and PVC sheathed A (B) fire-resistant power cables can be laid in rooms, tunnels and pipes that require fire resistance.
NA-VV22, NB-VV22, PVC insulated steel tape armored PVC sheath A (B) fire-resistant power cables are suitable for laying in the ground when fire resistance is required, not suitable for laying in pipelines.
WDNA-YJY23, WDNB-YJY23, XLPE insulated steel tape armored polyolefin sheath A (B) halogen-free low-smoke fire-resistant power cable is suitable for laying in the ground when halogen-free low-smoke and fire resistance is required, not suitable Lay inside the pipeline.
ZA-YJV, ZA-YJLV, ZB-YJV, ZB-YJLV, ZC-YJV, ZC-YJLV, XLPE insulated PVC sheath A (B, C) flame-retardant power cables can be laid in the resistance Burning required indoors, tunnels and pipes.
ZA-YJV22, ZA-YJLV22, ZB-YJV22, ZB-YJLV22, ZC-YJV22, ZC-YJLV22, XLPE insulated steel tape armored PVC sheath A (B, C) flame-retardant power cables are suitable It is not suitable for laying in the pipeline if it is buried in the ground when flame retardance is required.
ZA-VV, ZA-VLV, ZB-VV, ZB-VLV, ZC-VV, ZC-VLV, PVC insulated and PVC sheathed A (B, C) flame retardant power cables can be laid on the flame retardant Required indoors, tunnels and pipes.
ZA-VV22, ZA-VLV22, ZB-VV22, ZB-VLV22, ZC-VV22, ZC-VLV22, PVC insulated steel tape armored PVC sheath A (B, C) flame-retardant power cables are suitable for It is buried in the ground when flame retardance is required, and it is not suitable for laying in the pipeline.
WDZA-YJY, WDZA-YJLY, WDZB-YJY, WDZB-YJLY, WDZC-YJY, WDZC-YJLY, XLPE insulated polyolefin sheath A (B, C) flame retardant power cable can be laid on the flame retardant And halogen-free low-smoke indoors, tunnels and pipes are required.
WDZA-YJY23, WDZA-YJLY23, WDZB-YJY23, WDZB-YJLY23, WDZC-YJY23, WDZC-YJLY23,
XLPE insulated steel tape armored polyolefin sheath A (B, C) flame retardant power cables are suitable for laying in the ground when flame retardant and halogen-free and low smoke are required, not suitable for laying in pipes.
VV, VLV, copper (aluminum) core PVC insulated PVC sheathed power cables are laid indoors, in tunnels and pipes or outdoor brackets, and do not bear pressure and mechanical external forces
VY, VLY, copper (aluminum) core PVC insulated polyethylene sheathed power cable
VV22, VLV22, copper (aluminum) core PVC insulated steel tape armored PVC sheathed power cables are laid indoors, in tunnels, cable trenches and directly buried soil. The cables can withstand pressure and other external forces.
VV23, VLV23, copper (aluminum) core PVC insulated steel tape armored polyethylene sheathed power cable

Use characteristics


This product is suitable for fixed rated lines with AC rated voltage of 35KV and below. The maximum long-term working temperature of the cable conductor is 90 degrees, and the short-circuit (maximum time does not exceed 5S).

UHV cable


1.8kV and below are low voltage cables; 3.6KV ~ 35KV are medium voltage cables; 35KV ~ 110KV are high voltage cables; 110 ~ 220KV are extra high voltage cables;
UHV cable is a kind of power cable that has emerged with the continuous development of cable technology. UHV cable is generally used as the central hub in large-scale power transmission systems. transmission.

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