Product

CU/XLPE/CWS/LSZH/AWA/LSZH

7) CU/XLPE/CWS/LSZH/AWA/LSZH 26/35kV 1x185/35
9) CU/XLPE/CWS/LSZH/AWA/LSZH 8.7/15kV 1x240/35

Item Description Material Apply Method
1 Conductor Bare copper wire Class 2 stranding
2 Conductor screen Semi-Conductive compound  
3 Insulation XLPE compound Triple extruding
4 Insulation screen Semi-conductive compound  
5 Wrapper Semi-conductive tape Taping
6 Metallic screen Bare copper wire Stranding
7 Metallic tape Bare copper wire Taping
9 Wrapper Flame retardant tape Taping
10 Inner sheath LSZH Extruding
11 Armor Aluminum wire Stranding
12  Outer sheath Flame retardant LSZH Extruding
Core Identification Natural                                                                                                              
Inner sheath color Black
Outter sheath Red

 

USING CHARACTERISTICS:
Min. temperature for fixing cable(°C) 0
Min. temperature for nominal operation(°C) -40
Min. bending radius after installed(mm) 15D
Cable design standard IEC 60502-2
Flame retardant IEC 60332-1, IEC 60332-3-24(Cat. C)
Low smoke IEC 61034-2
Halogen free IEC 60754-1
System frequency range (Hz) 49-61
Max. Continuous conductor temp.(°C) 90
Max. Conductor temp. under short circuit(°C) 250

 

DIMENSION DATA:

No.

Core No.x
Cross
Section

Nom.
Insulation
thick.

Nom. metallic screen
cross section area per
core

Nom. inner
sheath thick.

Nom. armor
wire diam.

Nom.
outer
sheath
thick.

Approx.
diam.
over outer
sheath

Approx.
weight

Max. DC 
resistance of
Conducotr
at 20 °C

  (mm²) (mm) (mm²) (mm) (mm) (mm) (mm) (kg/km) (Ω/km)
7 1x185/35 10.5 35 1.4 2.5 2.7 56.7 5153 0.0991
9 1x240/35 4.5 35 1.2 2.0 2.3 45.1 4391 0.0754

 

CURRENT RATING:

No.

Core No.x
Cross
Section

Buried direct
in the ground

In single-way duct

In air

Trefoil Flat spaced Trefoil ducts Flat touching 
ducts
Trefoil Flat
touching
Flat spaced
  mm² A A A A A A A
  (mm²)
7 1x185 406 410 387 391 543 550 637
9 1x240 469 470 447 453 641 647 745

 Note:

  • Maximum conductor temperature 90°C
  • Ambient air temperature 30 °C
  • Ground temperature 20 °C
  • Depth of laying 0.8 m
  • Thermal resistivity of soil 1,5 K.m/W
  • Thermal resistivity of earthenware ducts 1,2 K.m/W
  • De is overall diameter of cable

Correction factors for ambient air temperatures other than 30°C

Max. conductor
temperature °C
Ambient air temperature °C
20 25 35 40 45 50 55 60
90 1.08 1.04 0.96 0.91 0.87 0.82 0.76 0.71

Correction factors for ambient ground temperatures other than 20°C 

Max. conductor
temperature °C
Ambient air temperature °C
10 15 25 30 35 40 45 50
90 1.07 1.04 0.96 0.93 0.89 0.85 0.80 0.76

 

Correction factors for depths of laying other than 0.8m

Depth of laying m For direct buried cables For cables in ducts
240mm² 185mm² 240mm² 185mm²
0.5 1.06 1.04 1.05 1.04
0.6 1.04 1.02 1.03 1.02
1 0.97 0.98 0.97 0.98
1.25 0.95 0.96 0.95 0.96
1.5 0.93 0.95 0.93 0.95
1.75 0.91 0.94 0.92 0.94
2 0.90 0.93 0.91 0.93
2.5 0.88 0.91 0.89 0.91
3 0.86 0.90 0.88 0.90

 

Correction factors for soil thermal resistivities other than 1.5K.m/W for direct buried single-core cables

Nominal area of conductor
mm²
Values of soil thermal resistivity K.m/W
0.7 0.8 0.9 1 2 2.5 3
185 1.35 1.29 1.23 1.18 0.88 0.80 0.74
240 1.36 1.29 1.23 1.18 0.88 0.80 0.73

Correction factors for soil thermal resistivities other than 1.5K.m/W single-core cables in buried ducts

Nominal area of conductor
mm²
Values of soil thermal resistivity K.m/W
0.7 0.8 0.9 1 2 2.5 3
185 1.24 1.20 1.17 0.13 0.91 0.83 0.78
240 1.25 1.21 1.17 1.14 0.90 0.83 0.77

 

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