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Medium voltage xlpe power cable

Medium voltage xlpe power cable

Details

Medium voltage xlpe power cable


xlpe insulated power cable,
XLPE power cable,

Medium voltage xlpe power cable

Application:

XLPE power cable used to transmit and distribute power in power transmission and distribution system of 35kV or lower. It is generally applied to the fields including power, construction, mines, metallurgy, petrochemical industry and communication in complete replace of oil immersed paper insulated power cable and in partial replace of PVC insulated power cable.
Construction:
Conductor: Copper (or Aluminium)
Insulation: XLPE
Filler: Non-hygroscopic Polypropylene(PP)
Binder Tape: Non-woven fabric
Inner Covering: PVC
Metallic Armour: Galvanized Steel Wire Armour(SWA)
Non-magnetic Steel Wire Armour(only for single core)
Aluminium Wire Armoured(AWA, only for single core)
Outer Sheath: PVC (or PE)

xlpe power cable

Medium voltage xlpe power cable

Standards:
The products are mainly complying with IEC 60502 standard, also can be produced according to OEM requirements and other standards, such as BS standard, DIN standard, ASTM standard, etc.
Voltage grade is up to 35kv, cross-section area can be up to 400 sqmm (copper or alumimum conductor). Conductor long-time operating temperature is 90° C. In short circuit, conductor highest temperature should be not more than 250° C

Medium voltage xlpe power cable
Using features:

1. Rated voltage: Uo/U: 26/35kV, 21/35kV, 12/20 kV (24 kV), 8.7/10kV, 8.7/15kV, 6/6kV, 6/10kV.
2. No. Of core: Single-core, Three-core.
3. The highest allowed operating temperature of conductor for long-term working is 90° C. In short-circuit (Max. Long-term is no more than 5 seconds). The highest temperature for conductor is no more than 250° C.
4. D. C Resistance of the conductor complies with the stipulations of GB/T3956-1997.
5. The environment temperature should be no lower than 0° C when lay. Otherwise it should be preheated.
6. The cable is laid without horizontal drop limit. The Min. Bending radius of three-core cable should be no smaller than 12 times of cable outer diameter.
7. Working Frequency Voltage Test: .
For cable with Uo of 3.6kV or lower: 2.5Uo+2kV/5min without puncture.
For cable with Uo of 3.6Kv~18kV: 3.5Uo/5min without puncture.
For cable with Uo of 21kV and 26 kV: 2.5Uo/30min without puncture.
8. Partial Discharge Test: The discharge volume should be no more than 10pC under 1.73Uo for the cable.

Medium voltage xlpe power cable

Product Standard
This product is manufactured according to GB/T12706.2, equivalent to IEC60502.2. Or BS, DIN, ICEA standard as customer request.  
Application
The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6/6kv~26/35kv.
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. 

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

Medium voltage xlpe power cable

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.

Medium voltage xlpe power cable -----------------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
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
 

we are one of top electric cable manufacture in north of china,main product include xlpe power cable,armoured cable,swa cable,single core cable,2 3 4 core armoured cable.

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