35) CU/XLPE/CWS/LSZH/DSWA/LSZH 8.7/15kV 3x185/35
Item
Description
Material
Apply Method
1
Conductor
Bare copper wire
Class 2 stranding
2
Conductor screen
Semi-Conductive compound
 
3
Insulation
XLPE
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
8
Filler( if necessary) 
Flame retardant PP yarn
Stranding
9
Wrapper
Flame retardant tape
Taping
10
Inner sheath
LSZH
Extruding
11
Armor
Double galvanized steel wire
Stranding
12 
Outer sheath
Flame retardant LSZH
Extruding
Core Identification
Red, yellow, green color strips                                                                       
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)
12D
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)
36
3x185/35
4.5
35
1.8
3.15
3.5
83.4
14876
0.0991
 
CURRENT RATING:
No.
Core No.x
Cross
Section
Buried direct
in the ground
In a buried duct
In air
 
(mm²)
 
 
 
/
/
A
A
A
35
3x185/35
374
335
453
 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
0.5
1.04
1.03
0.6
1.03
1.02
1
0.98
0.99
1.25
0.96
0.97
1.5
0.95
0.96
1.75
0.94
0.95
2
0.93
0.94
2.5
0.91
0.93
3
0.90
0.92
 
Correction factors for soil thermal resistivities other than 1.5K.m/W for direct buried three-core cables
Nominal area of conductor
mm
Values of soil thermal resistivity K.m/W
0.7
0.8
0.9
1
2
2.5
3
185
1.27
1.23
1.18
1.15
0.90
0.83
0.77