unarmoured cable Medium Voltage Power Cable aluminium xlpe unarmoured cable
Product Description
unarmoured cable Medium Voltage Power Cable aluminium xlpe unarmoured cable
This product is manufactured according to GB/T12706.2, equivalent to IEC60502.2. Or BS, DIN, ICEA standard as customer request.
2 Application
The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6/6kv~26/35kv.
3 Operating characteristics
- Rated power-frepuency voltage U0/U: 3.6/6kv~26/35kv.
- Max.admissible operating temperature of the conductor:90ºC.
- Max. short-circurt temperature of conductor shall not exceed 2500C. (5s maximum duration)
- The ambient temperature under installation should not below 00C.
- The bending radius of a single-core cable should not less than 20 times of the cable diameter.
The bending radius of a multi-core cable should not less than 15 times of the cable diameter.
4 Table of the voltage, cores and cross-section
| Item | Category A ,B | 3.6/6kV | 6/10kV | 8.7/15kV | 12/20kV | 18/30kV | 21/35kV |
| Category A ,B | 6/6kV | 8.7/10kV | 12/15kV | 18/20kV | - | 26/35kV | |
| Single core | mm2 | 25-1200 | 25-1200 | 35-1200 | 50-1200 | 50-1200 | 50-1200 |
| Three core | mm2 | 25-400 | 25-400 | 35-400 | 50-400 | 50-400 | 50-400 |
The cable with Category A rated voltage is used in the situation requiring not over 1 min. of grounding fault lasting time. For the cable with
Category B rated voltage, the grounding fault lasting time normally is not over 1 hour, max. lasting time is not over 8 hours, annual ground fault
lasting time altogether should not be over 125 hours, Category C includes all the system expect Category A and B.
5 Type and Name
| Type | Designation | Applications | |
| YJV | Copper conductor,XLPE insulated, PVC sheathed power cable |
For laying indoors,in tunnel or cable trench, unable to bear external mechanical forces. Single core cable is not allowed to laid in magnetic duct. |
|
| YJLV | Aluminum conductor,XLPE insulated, PVC sheathed power cable |
||
| YJY | Copper conductor, XLPE insulated, PE sheathed power cable |
||
| YJLY | Aluminum conductor, XLPE insulated, PE sheathed power cable |
||
| YJV22 | Copper conductor,XLPE insulated,steel tape armoured,PVC sheathed power cable |
For laying indoors,in tunnel in cable trench,or direct in ground,able to bear external mechanical forces.Single core cable is not allowed to laid in magnetic duct. |
|
| YJLV22 | Aluminum conductor,XLPE insulated,steel tape armoured,PVC sheathed power cable |
||
| YJV23 | Copper conductor,XLPE insulated,steel tape armoured,PE sheathed power cable |
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| YJLV23 | Aluminum conductor,XLPE insulated,steel tape armoured,PE sheathed power cable |
||
| YJV32 | Copper conductor,XLPE insulated,steel wire armoured,PVC sheathed power cable |
For laying indoors,in tunnel cable trench,well or direct in ground,able to bear external mechanical forces and certain pulling force. |
|
| YJLV32 | Aluminum conductor,XLPE insulated,steel wire armoured,PVC sheathed power cable |
||
| YJV33 | Copper conductor,XLPE insulated,steel wire armoured,PE sheathed power cable |
||
| YJLV33 | Aluminum conductor,XLPE insulated, steel wire armoured,PE sheathed power cable |
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The description "6/10 (12) kV 70mm2 Single Core Copper/Aluminum XLPE Insulated Cable" refers to a specific type of power cable used for electrical distribution at medium voltage levels. Let's break down the different components and specifications:
Voltage Rating: The cable is rated for a voltage of 6/10 (12) kilovolts (kV). This means it is designed to safely carry electrical power at voltages up to 6 kV for continuous operation and withstand voltage spikes of up to 10 (12) kV.
Cross-Sectional Area: The cable has a cross-sectional area of 70 square millimeters (mm2). The cross-sectional area determines the current-carrying capacity of the cable and is an important factor in determining the cable's electrical performance.
Single Core: The cable has a single conductor core, meaning it consists of a single conductor enclosed within the insulation.
Copper/Aluminum: The cable can be available with either a copper or aluminum conductor. Copper is known for its excellent conductivity, while aluminum is lighter and more cost-effective. The choice between copper and aluminum depends on factors such as the application, electrical load, and cost considerations.
XLPE Insulated: XLPE (Cross-Linked Polyethylene) is a type of insulation material used in power cables. XLPE insulation offers excellent electrical properties, thermal stability, and resistance to moisture and environmental factors.
XLPE (cross-linked polyethylene) insulated cable refers to an electrical cable that has conductors insulated with XLPE material. XLPE is a thermosetting polymer known for its excellent electrical properties, making it a popular choice for various applications in the power transmission and distribution industry.
Insulation Material: XLPE is a type of polyethylene that is chemically cross-linked. This cross-linking process improves the thermal and mechanical properties of the insulation, making it more robust and durable compared to non-cross-linked materials.
Electrical Performance: XLPE insulation offers high dielectric strength, low dielectric losses, and excellent insulation resistance. This allows for efficient power transmission while minimizing energy losses.
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