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127-220KV HV POWER CABLE

Home Products 127-220KV HV POWER CABLE

127-220KV HV POWER CABLE

IEC 60840 IEC 62067
High-quality materials
International standards compliant
Durable construction
Long service life
Quality tested
Custom lengths available
Overview

127-220KV HV POWER CABLE

Application:

127/220kV HV cables fall into the category of EHV XLPE insulated power cables. As a core product for220kV EHV power transmission networks, they replace overhead lines of the same voltage class for underground/tunnel laying in urban power grids, industrial parks and cross-regional transmission projects. Featuring large transmission capacity, excellent insulation, strong anti-environmental interference and small floor space, they are widely used in overhead-to-underground transformation of main power grids, cross-sea/river transmission and power grid construction in urban core areas.

Construction:

1.Conductor: Circular Stranded Compacted Conductor(≤800mm2),Milliken Conductor(>800mm2)

2.Conductor Screen:Super Smooth Semi-Conductive Compound

3.Insulation: Super Clean Cross Linked Polyethylene(XLPE)

4.Insulation Screen:Super Smooth Semi-Conductive Compound

5.Binder Tape:Semi-Conductive Tape

6.Metal Sheath: Corrugated Aluminum Sheath/Lead Sheath/Aluminum Laminated Tape

7.Anti-Corrosive Layer:Cable Asphalt

8.Outer Sheath: Polyvinyl Chloride(PVC) or Polyethylene(PE)

9.Conductive Layer: Graphite

10.Optional: Copper Wire Screen,Metal Wire Screen     YJLW02:CU/XLPE/CAS/PV

Technical Parameters:

Rated voltage:127/220kV
YJLW03:CU/XLPE/CAS/HDPE                               YJLW02:CU/XLPE/CAS/PVC
Nominal area
of conductor
mm²40050063080080010001200140016001800200022002500
Thickness of
insulation
  mm27.027.026.025.025.024.024.024.024.024.024.024.024.0
Thickness  of
aluminum tape
  mm2.42.42.42.42.42.62.62.62.62.82.82.82.8
Thickness of
outer sheath
  mm5.05.05.05.05.05.05.05.05.05.05.05.05.0
Approx.outer
   diameter
  mm116.7119.9121.4123.6124.8127.4131.8134.8138.1142.2145.2148.7151.4
Approx.weight
   (kg/km)
  Cu12295136521501716751169631916321093232302535427618298873179035008
 Max.DC
resistance of
conductor  at
20℃(Ω2/km)
  Cu0.04700.03660.02830.02210.02210.01760.01510.01290.01130.01010.00900.00830.0072
Current ratings(A)
  Soil
  ∴
  Cu686779883991103111551242133114091474154015871662
  Air  Cu85198111311292134715391675181719452057217122622392
  Soil
  …
  Cu7738759891105114712751358144215101566161916521709
  Air
  … ·
  Cu86299111391295134915301655178218931989208321562258
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