Low voltage power cable
| Number | model | name | application |
| 1 | VV VLV VY VLY | PVC insulated PVC/PE sheathed power cables | Cables cannot withstand mechanical external forces when laid indoors, in tunnels, and pipelines |
| 2 | VV22 VLV22 VV23 VLY23 | PVC insulated PVC/PE sheathed steel tape armored power cable | |
| 3 | VV32 VLV32 VV33 VLV33 VV42 VLV42 VV43 VLV43 | PVC insulated PVC/PE sheathed steel tape armored power cable | When laid in high drop areas, the cable can withstand mechanical external forces and considerable tensile force |
| 4 | YJV YJLV YJY YJLY | XLPE insulated PVC/PE sheathed power cables | Cables cannot withstand mechanical external forces when laid indoors, in tunnels, and pipelines |
| 5 | YJV22 YJLV22 YJV23 YJLV23 | Crosslinked polyethylene insulated PVC/polyethylene sheathed steel tape armored power cable | Cables cannot withstand mechanical external forces when laid indoors, in tunnels, and pipelines |
| 6 | YJV32 YJLV32 YJV33 YJLV33 YJV42 YJLV42 YJV43 YJLV43 | Crosslinked polyethylene insulated polyvinyl chloride sheathed steel tape armored power cable | When laid in high drop areas, the cable can withstand mechanical external forces and considerable tensile force |
Product Parameters
| model | core | Nominal cross-section(mm2) | model | core | Nominal cross-section(mm2) |
| rated voltage(KV) | rated voltage(KV) |
| 0.6/1 | 0.6/1 | 6/6(6/8)8.7/10(8.7/15) 26/35(26/45) |
| Cu | Al | Cu | Al | Cu | Al |
| VV VLV VY VLY | 1 | 15-1200 | 4-1200 | YJV YJLV YJY YJLY | 1 | 1.5-1200 | 4-1200 | 25-500 | 35-630 |
| 2 | 1.5-300 | 4-300 | 2 | 1.5-300 | 4-300 | … | … |
| 3 | 1.5-300 | 4-300 | 3 | 1.5-300 | 4-300 | 25-400 | 35-400 |
| 4 | 1.5-300 | 4-300 | 4 | 1.5-300 | 4-300 | … | … |
| 5 | 1.5-300 | 4-300 | 5 | 1.5-300 | 4-300 | … | … |
| 3+1 | 1.5-300 | 4-300 | 3+1 | 1.5-300 | 4-300 | … | … |
| 3+2 | 1.5-300 | 4-300 | 3+2 | 1.5-300 | 4-300 | … | … |
| 4+1 | 1.5-300 | 4-300 | 4+1 | 1.5-300 | 4-300 | … | … |
| VV22 VLV22 VV23 VLY23 | 1 | 10-500 | 16-500 | VV22 VLV22 VV23 VLV23 | 1 | 10-500 | 16-500 | 25-400 | 35-400 |
| 2 | 2.5-300 | 4-300 | 2 | 2.5-300 | 4-300 | … | … |
| 3 | 2.5-300 | 4-300 | 3 | 2.5-300 | 4-300 | 25-400 | 35-400 |
| 4 | 2.5-300 | 4-300 | 4 | 2.5-300 | 4-300 | … | … |
| 5 | 2.5-300 | 4-300 | 5 | 2.5-300 | 4-300 | … | … |
| 3+1 | 2.5-300 | 4-300 | 3+1 | 2.5-300 | 4-300 | … | … |
| 3+2 | 2.5-300 | 4-300 | 3+2 | 2.5-300 | 4-300 | … | … |
| 4+1 | 2.5-300 | 4-300 | 4+1 | 2.5-300 | 4-300 | … | … |
| VV32 VLV32 VLV42 VV43 VLV43 VV33 | 1 | 50-500 | 50-500 | VV32 VLV32 VV42 VV33 VLY33 VLV33 VLV43 | 1 | 50-500 | 50-500 | 25-400 | 35-400… |
| 2 | 35-300 | 50-300 | 2 | 35-300 | 50-300 | … | … |
| 3 | 25-300 | 35-300 | 3 | 25-300 | 35-300 | 25-400 | 35-400 |
| 4 | 25-300 | 35-300 | 4 | 25-300 | 35-300 | … | … |
| 5 | 25-300 | 35-300 | 5 | 25-300 | 35-300 | … | … |
| 3+1 | 25-300 | 25-300 | 3+1 | 25-300 | 35-300 | … | … |
| 4+1 | 25-300 | 35-300 | 4+1 | 25-300 | 35-300 | … | … |
1. Single core armored cables are only used in DC systems. If used in AC systems, non magnetic material armor layers should be used.
2. Various types of five core cables with 0.6/1KV circular conductor structure or fan-shaped conductor structure can be produced according to user requirements.
PVC insulated power cable:
This product is suitable for use in lines with AC rated voltage (Uo/U) of 0.6/1kV, as well as for power transmission and distribution. The core length of the conductive wire is
The working temperature during the period should not exceed+70 ºC, and the short-circuit temperature should not exceed+160 ºC (with a maximum duration of 5 seconds) for cable laying The temperature should not be lower than 0 ºC, the bending radius should not be less than 10 times the outer diameter of the cable, and the cable laying is not limited by the drop.
Product characteristics:
Copper core and aluminum core plastic insulated power cables with rated voltage of 35kV and below
Crosslinked polyethylene insulated power cable(YJV):
This product is suitable for fixed installation in AC 50HZ, rated voltage 0.6/1, 1.8/3, 3.6/6, 6/10, 8.7/10, 8.7/15,12/20, 21/35, 26/35kV transmission and distribution systems.
1. Usage characteristics:
The maximum rated temperature of the cable conductor is 90 ºC.
The maximum temperature of the cable conductor during a short circuit (maximum duration not exceeding 5 seconds) shall not exceed 250 ºC.
The ambient temperature during cable laying should not be lower than 0 ºC, and its minimum bending radius is: single core cable R=20 (D+d) 5%, mm;
Multi core cable R=15 (D+d) 5%, mm;
In the formula: D - actual outer diameter of the cable, mm; D - The actual outer diameter of the cable conductor, mm.
2. Technical performance:
The conductor should comply with the provisions of GB/T3956, and the DC resistance is shown in Table 3.
At the highest rated temperature, the insulation resistance constant K should not be less than 3.67 megaohms per kilometer.
When applying an AC voltage of 1.5Uo, the discharge capacity of cables with a rated voltage Uo of 18KV and below should not exceed 20PC, and cables with a rated voltage Uo of 18KV and above should discharge
The battery should not exceed 10PC.
| Nominal cross-section mm2 | 10 | 16 | 25 | 35 | 50 | 70 | 95 | 120 | 150 | 185 | 240 | 300 |
| 20P maximum DC resistance Ω/km |
| Copper core | 1.83 | 1.15 | 0.727 | 0.524 | 0.387 | 0.263 | 0.193 | 0.153 | 0.0124 | 0.0991 | 0.0754 | 0.0601 |
| Aluminum core | 3.08 | 1.91 | 1.20 | 0.868 | 0.641 | 0.443 | 0.320 | 0.253 | 0.206 | 0.164 | 0.125 | 0.100 |
This product is used in power transmission and distribution systems of 0.6/kV and below for power transmission and distribution. Low smoke and halogen-free flame retardancy, with low smoke and low halogen fire resistance performance higher than normal national regulations for flame retardancy Standard, widely used in places with strict flame retardant performance requirements such as airports, nuclear power plants, key water conservancy hub projects, petroleum, chemical, transportation, high-rise buildings, etc.
Usage characteristics:Rated voltage (Uo/U): 0.6/1KV;
The long-term working temperature of the cable conductor is 90 ºC, and during a short circuit (the longest duration does not exceed 5 seconds),
The maximum temperature of the cable conductor shall not exceed 250 ºC;
The DC resistance of cable conductors shall comply with the provisions of GB/T3956;
The ambient temperature during cable laying shall not be lower than 0 ºC, and the minimum bending radius shall not be less than 15 times the outer diameter of the cable;
Cable laying is not limited by drop;
| model | name |
| WDZ-YJY | Copper core crosslinked polyethylene insulated polyolefin sheathed halogen-free low smoke flame retardant power cable |
| WDZ-YJY22 | Copper core crosslinked polyethylene insulated polyolefin sheathed steel tape armored halogen-free low smoke flame retardant power cable |
| WDZ-YJY32 | Copper core crosslinked polyethylene insulated polyolefin sheathed fine steel wire armored halogen-free low smoke flame retardant power cable |
| WDZ-YJV | Copper core crosslinked polyethylene insulated polyvinyl chloride sheathed halogen-free low smoke flame retardant power cable |
| WDZ-YJV22 | Copper core crosslinked polyethylene insulated polyvinyl chloride sheathed steel tape armored halogen-free low smoke flame retardant power cable |
| WDZ-YJV32 | Copper core crosslinked polyethylene insulated polyvinyl chloride sheathed fine steel armored halogen-free low smoke flame retardant power cable |
| WDZ-VV | Polyvinyl chloride insulated polyvinyl chloride sheathed halogen-free low smoke flame retardant power cable |
| WDZ-VV22 | Polyvinyl chloride insulated polyvinyl chloride sheathed steel tape armored halogen-free low smoke flame retardant power cable |
| WDZ-VV32 | Polyvinyl chloride insulated polyvinyl chloride sheathed fine wire armored halogen-free low smoke flame retardant power cable |
| WDZ-YJY(E)22 | Copper core crosslinked polyethylene insulated polyolefin sheathed steel tape armored halogen-free low smoke flame retardant power cable |
| WDZ-YJY(E)32 | Copper core crosslinked polyethylene insulated polyolefin sheathed fine steel wire armored halogen-free low smoke flame retardant power cable |
Irradiated crosslinked low smoke halogen-free flame retardant wire and cable have difficulty catching fire and have the ability to prevent or delay the spread of flame
Ability, over load strong, and once on fire, he has no halogen, low smoke, non-toxic, no corrosion and other characteristics, suitable
Such as high-rise buildings, hotels, hospitals, subways, nuclear power plants, tunnels, power plants, ores, petroleum, chemical
Work, etc.
It mainly includes: irradiation crosslinked low smoke halogen-free flame retardant polyethylene insulated wire, irradiation crosslinked polyethylene insulation control
Making cable, irradiation crosslinked low smoke halogen-free flame retardant control cable, irradiation crosslinked low smoke halogen-free flame retardant polyethylene insulation electricity Power cable.
1. Advantages of irradiation cross-linked cables:High current carrying capacity: irradiated cross-linked cable, after being irradiated by high-energy electron beam, the molecular structure of the material changes from linear to three-dimensional network molecular structure, and the temperature resistance grade changes from non cross-linked
Increasing the temperature from 70 ºC to 90 ºC, 105 ºC, 125 ºC, 135 ºC, or even 150 ºC increases the current carrying capacity of cables of the same specification by 15-50%.
High insulation resistance: Due to the avoidance of using hydroxide as a flame retardant in irradiated cross-linked cables, it prevents pre crosslinking during crosslinking and the absorption of air by the insulation layer
The phenomenon of insulation resistance decreasing due to moisture content. This ensures the insulation resistance value.
Long service life and strong overload capacity: Due to the high temperature resistance and aging temperature of the irradiated cross-linked polyolefin material, the cycle time of the cable during use is extended
The service life of ring heating.
Environmental protection and safety: Due to the use of halogen-free and environmentally friendly materials in the cables, the combustion characteristics of the cables meet environmental requirements.
Product quality temperature: The quality of traditional warm water cross-linked cables is affected by factors such as water temperature, formulation process, cross-linking additives, etc., and the quality is unstable. However, irradiation cross-linked cables
The quality depends on the irradiation dose of the electron beam, which is controlled by a computer and eliminates human factors, resulting in stable quality.
2. Usage characteristics:The rated voltage U of the power cable/ U is 0.6/1KV. The rated voltage U of the control cable/ U is 450/750V, and the rated voltage of the wire is U/ U is 450/750V and below.
The long-term allowable working temperature of the cable shall not exceed 135 ºC.
The ambient temperature during installation should not be lower than 0 ºC.
Minimum bending radius during cable installation:
A. Control cable: Cables without armor layer should not be less than 6 times the outer diameter of the cable, and cables with armor or copper tape shielding structure should not be less than 12 times the outer diameter of the cable.
B. The minimum bending radius of power cables. See the table below: (Outer diameter of D cable)
| project | Single-core cable | Multicore cable |
| unarmoured | armored | unarmoured | armored |
| Minimum bending radius during installation | 20D | 15D | 15D | 12D |
Detailed Photos
){kind=link}