WDZ-VV低烟无卤电力电缆-安徽宏林仪表线缆有限公司

WDZ-VV Low smoke halogen-free power cable

Wdz-vv low smoke halogen-free power cable 1; The main types of high voltage cables are YJV cable, V…

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Description

Wdz-vv low smoke halogen-free power cable

1; The main types of high voltage cables are YJV cable, VV cable, yjlv cable and VLV cable.

Full name of YJV cable: cross linked polyethylene insulated PVC sheathed power cable (copper core)

Full name of VV cable: PVC insulated PVC sheathed power cable (copper core)

Yjlv cable full name: cross linked polyethylene insulated PVC sheathed aluminum core power cable

Full name of VLV cable: PVC insulated PVC sheathed aluminum core power cable

Due to the excellent conductivity of copper conductor, more and more projects use copper core power cable as the main road of power supply system, while aluminum core power cable is less used, especially in the higher voltage power system, the more copper core cable is selected.

2; Structure of high voltage cable; The components of high-voltage cable from inside to outside include: conductor, insulation, inner sheath, filler (armor) and outer insulation. Of course, armored high-voltage cable is mainly used for underground burial, which can resist high-strength compression on the ground and prevent other external force damage. Wdz-vv low smoke halogen-free power cable

3; Common specifications, models and uses;

Na-yjv, nb-yjv, XLPE insulated PVC sheathed class A (b) fire-resistant power cables can be laid in indoor, tunnel and pipeline with fire resistance requirements.

Na-yjv22, nb-yjv22, XLPE insulated steel tape armored PVC sheathed class A (b) fire-resistant power cables are suitable for buried laying when fire resistance is required, and are not suitable for laying in pipelines.

Na-vv, nb-vv, PVC insulated and PVC sheathed class A (b) fire-resistant power cables can be laid indoors, in tunnels and pipelines with fire resistance requirements.

Na-vv22, nb-vv22, PVC insulated steel tape armored PVC sheathed class A (b) fire-resistant power cables are suitable for buried laying when fire resistance is required, and are not suitable for laying in pipelines.

Wdna-yjy23, wdnb-yjy23, XLPE insulated steel tape armored polyolefin sheathed class A (b) halogen-free low smoke fire-resistant power cables are suitable for buried laying when halogen-free low smoke and fire resistance are required, and are not suitable for laying in pipelines. Wdz-vv low smoke halogen-free power cable

Za-yjv, za-yjlv, zb-yjv, zb-yjlv, zc-yjv, zc-yjlv, XLPE insulated PVC sheathed class A (B, c) flame retardant power cables can be laid in rooms, tunnels and pipelines with flame retardant requirements.

Za-yjv22, za-yjlv22, zb-yjv22, zb-yjlv22, zc-yjv22, zc-yjlv22, crosslinked polyethylene insulated steel tape armored PVC sheathed class A (B, c) flame retardant power cables are suitable for buried laying when flame retardant is required, but not for laying in pipelines.

Za-vv, za-vlv, zb-vv, zb-vlv, zc-vv, zc-vlv, PVC insulated PVC sheathed class A (B, c) flame retardant power cables can be laid in rooms, tunnels and pipelines with flame retardant requirements.

Za-vv22, za-vlv22, zb-vv22, zb-vlv22, zc-vv22, zc-vlv22, PVC insulated steel tape armored PVC sheathed class A (B, c) flame retardant power cables are suitable for buried laying when flame retardant is required, but not for laying in pipelines.

Wdza-yjy, wdza-yjly, wdzb-yjy, wdzb-yjly, wdzc-yjy, wdzc-yjly, XLPE insulated polyolefin sheathed class A (B, c) flame retardant power cables can be laid in rooms, tunnels and pipelines requiring flame retardant, halogen-free and low smoke.

WDZA-YJY23，WDZA-YJLY23，WDZB-YJY23，WDZB-YJLY23 ，WDZC-YJY23，WDZC-YJLY23，

XLPE insulated steel tape armored polyolefin sheathed class A (B, c) flame retardant power cables are suitable for buried laying when there are requirements for flame retardant, halogen-free and low smoke, and are not suitable for laying in pipelines.

VV, VLV, copper (aluminum) core PVC insulated PVC sheathed power cables shall be laid indoors, in tunnels and pipelines or in outdoor brackets, and shall not bear pressure and external mechanical 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, and the cables can withstand pressure and other external forces

Vv23, vlv23, copper (aluminum) core PVC insulated steel tape armored polyethylene sheathed power cable

4; Service characteristics of high voltage cable; The product is suitable for fixed lines of power supply, transmission and distribution with AC rated voltage of 35kV and below. The * * * high long-term working temperature of cable conductor is 90 degrees. In case of short circuit (* * * no more than 5S for a long time), the * * * high temperature of cable conductor is no more than 250 degrees.

5; UHV cable; 1kV and below are low-voltage cables; 1kV ~ 10kV are medium voltage cables; 10kV ~ 35kV is high voltage cable; 35 ~ 220kV is UHV cable; UHV cable is a kind of power cable with the continuous development of cable technology. Generally, as the central link in large-scale transmission system, UHV cable belongs to a kind of high-voltage cable with high technical content, which is mainly used for long-distance power transmission.

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