WDZ-VV Low Smoke Zero Halogen Power Cable
1; The main types of high-voltage cables are YJV cable, VV cable, YJLV cable, and VLV cable.
YJV cable full name cross-linked polyethylene insulated PVC sheathed power cable (copper core)
VV cable full name PVC insulated PVC sheathed power cable (copper core)
YJLV full cross-linked polyethylene insulated PVC sheathed aluminum power cable
VLV cable full name PVC insulated PVC sheathed aluminum power cable
Due to the excellent conductivity of copper conductors, more and more projects use copper core power cables as the main path of the power supply system, while aluminum core power cables are used less often, especially in higher voltage power systems, the choice of copper core The more cables there are.
2; high-voltage cable structure; high voltage cable from the inside to the outside of the components include: conductor, insulation, inner sheath, filler (armored), external insulation. Of course, armored high-voltage cables are mainly used for ground-buried, which can resist the high-strength pressing on the ground and prevent other external damage. WDZ-VV Low Smoke Zero Halogen Power Cable
3; common specifications and uses;
NA-YJV, NB-YJV, cross-linked polyethylene insulated PVC sheathed type A (B) fire-resisting power cables can be laid in rooms, tunnels and pipelines where fire resistance is required.
NA-YJV22, NB-YJV22, cross-linked polyethylene insulated steel tape armored PVC sheathed type A (B) fire-resisting power cable is suitable for laying when buried in fire-resistant requirements, and is not suitable for laying in pipes.
NA-VV, NB-VV, PVC insulated PVC sheathed type A (B) fire-resisting power cables can be laid in rooms, tunnels and pipelines where fire resistance is required.
NA-VV22, NB-VV22, PVC insulated steel tape armored PVC sheathed type A (B) fire-resisting power cable is suitable for laying when buried in fire-resistant requirements, and is not suitable for laying pipes.
WDNA-YJY23, WDNB-YJY23, XLPE insulated steel tape armored polyolefin jacket A (B) halogen-free low smoke fire-resistant power cable suitable for laying halogen-free low smoke and fire-resistant requirements, not suitable Laying inside the pipeline. WDZ-VV Low Smoke Zero Halogen Power Cable
ZA-YJV, ZA-YJLV, ZB-YJV, ZB-YJLV, ZC-YJV, ZC-YJLV, cross-linked polyethylene insulated PVC sheathed type A (B, C) flame retardant power cables can be laid on the resistance Fired indoor, tunnels and pipelines.
ZA-YJV22, ZA-YJLV22, ZB-YJV22, ZB-YJLV22, ZC-YJV22, ZC-YJLV22, suitable for cross-linked polyethylene insulated steel tape armored PVC sheathed A (B, C) flame retardant power cables It is not suitable for the laying of pipelines when buried with flame-retardant requirements.
ZA-VV, ZA-VLV, ZB-VV, ZB-VLV, ZC-VV, ZC-VLV, PVC insulated PVC sheathed A (B, C) flame retardant power cables can be laid on the flame retardant There are requirements for indoor, tunnel and pipeline.
ZA-VV22, ZA-VLV22, ZB-VV22, ZB-VLV22, ZC-VV22, ZC-VLV22, PVC insulated steel tape armored PVC jacket A (B, C) type flame retardant power cable suitable for When flame retardant is required, it is laid underground and it is not suitable for laying pipes.
WDZA-YJY, WDZA-YJLY, WDZB-YJY, WDZB-YJLY, WDZC-YJY, WDZC-YJLY, XLPE insulated polyolefin sheathed A (B, C) type flame retardant power cables can be laid on the flame retardant Halogen-free and low-smoke-demand indoor, tunnel and pipeline.
WDZA-YJY23, WDZA-YJLY23, WDZB-YJY23, WDZB-YJLY23, WDZC-YJY23, WDZC-YJLY23,
Cross-linked polyethylene insulated steel tape armored polyolefin sheathed type A (B, C) flame retardant power cables are suitable for laying fire-resistant and halogen-free low-smoke when required, and are not suitable for laying pipes.
VV, VLV, copper (aluminum) core PVC insulated PVC sheathed power cables are laid indoors, in tunnels and pipelines or in outdoor trays without stress and mechanical forces.
VY, VLY, copper (aluminum) core PVC insulated PE sheathed power cable
VV22, VLV22, copper (aluminum) core PVC insulated steel tape armored PVC sheathed power cables laid in indoor, tunnels, cable trenches and 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
4;High-voltage cable use characteristics;This product is suitable for transmission and distribution of 35KV AC rated voltage and can be used for fixed connection line, the highest long-term operating temperature of cable conductor is 90 degrees, short circuit (the longest time does not exceed 5S), cable conductor The maximum temperature does not exceed 250 degrees.
5; UHV cables; 1KV and below are low-voltage cables; 1KV~10KV are medium-voltage cables; 10KV~35KV are high-voltage cables; 35~220KV are UHV cables; UHV cables emerge with the continuous development of cable technology. A kind of power cable, UHV cable is generally used as a middle hinge zone in a large-scale transmission system, and belongs to a high-voltage high-voltage cable, which is mainly used for long-distance power transmission.
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