Power cables are extensively used in power plants, sub-stations, and industrial and mining enterprises. In the event of a cable fire leading to an explosion, it can cause severe fires and power outages. Moreover, when cables burn, they produce large amounts of thick smoke and toxic gases, which not only pollute the environment but also endanger human life. Therefore, fire prevention for power cables should be a priority.
0.6/1KV Single-core Cross-linked Polyethylene Insulated PVC Sheathed Power Cable
Product Application: Used for electric power lines, for the transmission and distribution of electrical energy.
Product Standard: GB12706
3. Product Usage Characteristics: (1) No preheating is required when laying the cable under environmental temperatures not below 0°C. The laying drop of the cable is unrestricted. (2) The long-term allowable working temperature of the cable cores should not exceed the following specifications: for cables with an outer sheath of polyvinyl chloride, 90°C; for cables with an outer sheath of polyethylene, 80°C. (3) The temperature must not exceed 250°C during core short circuit (continuous for 5 seconds). (4) The minimum bending radius for cable laying is as follows: Single-core cable: 20(d+D)±5%; Three-core cable: 15(d+D)±5%. Where: D is the actual outer diameter of the cable, d is the actual outer diameter of the conductor.
4. Product Type, Name, and Application Scope
Type Name Usage Range
Copper Core / Aluminum Core
YJV, YJLV Cross-linked Polyethylene Insulated PVC Sheathed Power Cables, fixedly installed in the air, indoors, cable trenches, or underground
YJY JYLY Cross-linked Polyethylene Insulated Polyethylene Sheathed Power Cables, fixed installation indoors, cable trenches, or underground
YJV22 YJLV22 Cross-linked Polyethylene Insulated Steel Tape Armored PVC Sheathed Power Cables, Fixed in locations subject to external pressure
YJV23, YJLV23 Cross-linked Polyethylene Insulated Steel Tape Armored Polyethylene Sheathed Power Cables, Fixedly Laid in Locations Subject to Frequent External Forces
YJV32 YJLV32 Cross-linked Polyethylene Insulated Fine钢丝 Armored with PVC Sheathed Power Cables, Fixed in Locations Subject to Tensile Force
YJV33 YJLV33 Cross-linked Polyethylene Insulated Fine Steel Wire Armored Polyethylene Sheathed Power Cable, Fixed in installations requiring tensile strength.
YJV42 JYLV42 Cross-linked Polyethylene Insulated, Steel Wire Armored, PVC Jacketed Power Cables, for Fixed Installation Underwater, in Vertical Shafts, or in Areas Subject to Tension
YJV43, YJLV43 Cross-linked Polyethylene Insulated Steel Wire Armored Polyethylene Sheathed Power Cable, suitable for fixed laying in locations requiring high tensile strength承受
Electrical cables: To ensure the normal operation of the cables and motors, the following three principles should be adhered to when selecting the cable cross-section:
The actual temperature rise of the cable during normal operation should not exceed the maximum temperature rise allowed by the insulation.
2. Select based on the allowable voltage loss during the operation of the cable line.
3. The selection of cable cross-section must meet the mechanical strength requirements.

Flame-retardant/Fire-resistant electrical cables. The flame-retardant grade is indicated by adding "A," "B," or "C" after the letter "Z," such as "ZA," "ZB," "ZC." When "ZR" is used, it is generally considered to be "C" grade flame-retardant. The fire-resistant grade is indicated by adding "A," "B," or "C" in the middle of "ZN," such as "ZAN," "ZBN," "ZCN." When "NH" is used, it is generally considered to be "ZCN." For example:
Model Name Equivalent to
ZC-YJV Copper Core Cross-Linked Polyethylene Insulated Polyvinyl Chloride Sheathed Flame Retardant C-Class Power Cable, ZR-YJV
ZCN-YJV Copper Core Cross-Linked Polyethylene Insulated Polyvinyl Chloride Sheathed Flame Retardant C-Rated Fire-Resistant Power Cable NH-YJV

Basic Structure of Power Cables:
The basic structure of power cables consists of four parts: the core (conductor), insulation layer, shielding layer, and protective sheath.
1. Wire Core. The wire core is the conductive portion of the power cable, used for transmitting electrical energy, and is the main component of the power cable.
2. Insulation. Insulation serves to electrically isolate the core from the ground and between cores of different phases, ensuring the transmission of electrical energy and is an indispensable part of the power cable structure.
3. Sheath layer. Power cables above 15KV typically have conductor sheath and insulation sheath layers.
4. Protective Layer. The role of the protective layer is to shield the power cable from external contaminants and moisture, as well as to prevent direct physical damage to the power cable.
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