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Anonymous users2024-02-08YJLV cable is an aluminum core XLPE insulated PVC sheathed aluminum core power cable.
Meaning: YJ: XLPE insulation, V: PVC sheath, L: The core material is aluminum.
Characteristics of YJLV cables: The maximum rated operating temperature of the conductor of the cable is 90, and the maximum operating temperature is less than or equal to +70,5
The temperature of the cable shall not be exceeded during the second short circuit.
The ambient temperature at the time of laying should not be lower.
YJLV cables are laid indoors, in trenches and pipelines, and can also be buried in the soil of loose, insulated PVC sheathed power cables, and cannot withstand external forces. When the YJLV cable is laid underground, it can withstand the action of mechanical external force, but cannot withstand large tensile force.
Extended Materials. Disadvantages of YJLV cables:
1. High resistivity: The resistivity of YJLV aluminum core cable is about two times higher than that of copper core cable.
2. Poor ductility: the elongation of copper alloy is 20 40%, the elongation of electrical copper is more than 30%, and the elongation of aluminum alloy is only 18%.
3. Low strength: The allowable stress at room temperature is 7 28% lower than that of copper core cable. Especially at high temperatures, the difference between the two is even greater.
4. No fatigue resistance: aluminum core cable is easy to break after repeated bending, while copper is not easy. In terms of elasticity index, copper cores are also higher than aluminum cores.
5. Small ampacity: due to high resistivity, the allowable ampacity (maximum current) of the copper core cable is about 30% lower than that of the copper core cable.
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Anonymous users2024-02-071. The name of the YJLV cable model is: aluminum core XLPE insulated PVC sheathed power cable.
2. The meaning of YJLV cable:
YJ --- cross-linked polyethylene insulation.
v--- PVC sheath.
l--- The core material is aluminum.
3. YJLV and YJV are both power cables, YJV is a copper core power cable, YJLV is an aluminum core power cable, the difference is in the conductor material, the following Shenghua Electric to introduce the meaning, structure, current carrying capacity and other technical parameters of YJLV.
4. The use characteristics of YJLV cable: the maximum rated working temperature of the cable conductor is 90, and the maximum working temperature shall not be exceeded.
seconds short circuit no more.
The ambient temperature is not lower than when laying.
Extended Information: Uses of Various Models of Cables:
1. ZA-YJV, ZA-YJLV, ZB-YJV, ZB-YJLV, ZC-YJV, ZC-YJLV, cross-linked polyethylene insulated PVC sheathed class A (B, C) flame retardant power cables can be laid in indoors, tunnels and pipelines with requirements for flame retardancy.
2. ZA-YJV22, ZA-YJLV22, ZB-YJV22, ZB-YJLV22, ZC-YJV22, ZC-YJLV22, XLPE insulated steel tape armored PVC sheathed class A (B, C) flame retardant power cable is suitable for buried laying when there are requirements for flame retardant, and is not suitable for laying in the pipeline.
3. 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 indoors, tunnels and pipelines with requirements for flame retardancy.
4. 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 there are requirements for flame retardant, and are not suitable for laying in pipelines.
5. WDZA-YJY, WDZA-YJLY, WDZB-YJY, WDZB-YJLY, WDZC-YJY, WDZC-YJLY, cross-linked polyethylene insulated polyolefin sheathed class A (B, C) flame retardant power cables can be laid in indoors, tunnels and pipelines that require flame retardant and halogen-free and low smoke.
6、wdza-yjy23，wdza-yjly23，wdzb-yjy23，wdzb-yjly23
wdzc-yjy23，wdzc-yjly23。
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Anonymous users2024-02-06YJLV is an aluminum core power cable, and the name of the model is: aluminum core XLPE insulated PVC sheathed power cable.
The meaning of YJLV cable is:
YJ --- cross-linked polyethylene insulation.
l--- The core material is aluminum.
v--- PVC sheath.
The working temperature of YJLV cable is the maximum rated working temperature of the conductor 90; The maximum temperature of the conductor short circuit shall not exceed 250, and the maximum time shall not exceed 5 seconds; The installation and laying temperature is not less than 0 for cable installation and laying; Lay in air at ambient temperature 40; The soil is laid at an ambient temperature of 25.
Extended information: According to the use voltage, YJLV cables can be divided into:
KV and below are low-voltage cables;
KV 10KV is medium voltage cable;
KV 35KV is a high-voltage cable;
220kV is UHV cable.
In storage, the cable should be packaged in a standardized manner to avoid long-term open-air sun exposure, and the ends should be reliably sealed, and long-term storage in a humid environment is not allowed, and the cable reel cannot be placed flat. When transporting, the height of the disc should be considered and effectively fixed, and several trays are not allowed to be hoisted at the same time during hoisting, and it is strictly forbidden to push down from a height.
Special tools should be used for cable laying, such as pay-off frames, guide rollers, etc., to prevent mechanical damage and keep away from heat sources during laying. When the cable is laid through the pipe, the inner diameter of the pipe is not less than twice the outer diameter of the cable, and the cable is forbidden to squeeze when multiple cables are routed, and the total area of the cable does not exceed 40% of the total area in the pipe.
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Anonymous users2024-02-05Summary. Dear, I'm glad to answer for you! YJV cable is a kind of XLPE insulated PVC sheathed power cable, which is widely used in power transmission, distribution and other fields.
y" in its name"and v"They stand for: 1"y":
Indicates that the insulation material is cross-linked polyethylene (XLPE); 2.“j": indicates that the conductor is made of copper (u stands for "gold" in Hanyu Pinyin):
Indicates that the sheath material is polyvinyl chloride (PVC).
Dear, I'm glad to answer for you! YJV cable is a kind of XLPE insulated PVC sheathed power cable, which is widely used in power transmission, distribution and other fields. y" in its name"and v"They stand for:
1."y"Indicates that the insulation material is cross-linked polyethylene (XLPE); 2.
j": indicates that the conductor is made of copper (u stands for "gold" in Hanyu Pinyin):":
Indicates that the sheath material is polyvinyl chloride (PVC).
Kiss and expand for you. YJV cable is a commonly used low-voltage power cable, which adopts cross-linked polyethylene insulation, PVC sheathed structure, and has good electrical and mechanical. Among them, Y represents cross-linked polyethylene (XLPE) as the insulating material, J as copper wire, and V as polyvinyl chloride (PVC) as the sheath material.
YJV cable is suitable for industry, mining, construction and municipal and other fields, and has a good effect when transmitting AC 50Hz or 60Hz and power signals below the rated voltage. The cable has the advantages of high dielectric strength, reliable operation, strong moisture resistance, long service life, etc., and is easy to install and maintain.
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Anonymous users2024-02-041. YJLV is an aluminum-core power cable, and the name of the model is: Aluminum Shiqiao core cross-linked polyethylene.
Insulating polyvinyl chloride.
Sheathed power cables.
2. The meaning of YJLV cable is:
YJ --- cross-linked polyethylene insulation.
l--- The core material is aluminum.
v---PVC sheathed wheel quietly;
3. The working temperature of YJLV cable is the maximum rated working temperature of the conductor 90; The maximum temperature of the conductor short circuit shall not exceed 250, and the maximum time shall not exceed 5 seconds; The installation and laying temperature is not less than 0 for the cable installation and laying temperature; Lay in air at ambient temperature 40; The soil is laid at an ambient temperature of 25.
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Anonymous users2024-02-031.YJLV is an aluminum-core power cable. Model: Aluminum core XLPE insulated PVC sheathed power cable.
2.YJLV cable meaning is:
YJ --- cross-linked polyethylene insulation.
l - the core material is aluminum;
V—PVC sheath;
The working temperature of the cable is the highest rated temperature of the conductor 90; The maximum temperature of the conductor does not exceed 250 during short circuit, and the maximum time does not exceed 5 seconds; Installation and laying temperature: the installation and laying temperature of the cable is not less than 0; Air-laying ambient temperature 40; The ambient temperature of laying is 25.
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