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EXeCVB EAXeCVB

Uo/U -   8.7/15 kV, 12/20kV, 20.8/36 kV NBN C 33 - 323
The single-core cables with insulation of cross-linked polyethylene (XLPE) and longitudinal water-blocking elements, are designed for transfer and distribution of electrical power with nominal voltage Uo/U U   8.7/15kV , 12/20kV, E 20.8/36 kV and frequency 50 Hz in urban and district electrical networks and for electrical supply of transformer's substations, small and medium industrial plants.
 
They are suitable for use in distribution installations, electric power stations and industrial systems. The cables are for fixed assembly in lines with unlimited difference levels, indoor installations, in cable ducts, conduits and shafts, over shelves and grills directly underground in ditch and outdoor shelter.
 
Cable construction
Construction
According to NBN C 33-323
Conductors
 
  
Cu and Al stranded compacted,
according to IEC 60228 cl.2
(NBN C 30-228)
Inner semi-
conductive layer
 semi-conductive XLPE compound
Insulation
XLPE compound
Outer semi-
conductive layer
semi-conductive XLPE
compound
Water resisting
element
Layer of semi-conductive water
absorbing tapes
Metal screen
 
  
Cu wires concentrically laid and one contact of Cu tape with
thickness of 0.1mm.
Water resisting
element
water absorbing insulating tape 
Sheath
PVC compound tipe ST2
Color
Red
Technical data
Conductor resistance at 20°C
According to IEC60228
class 2
(NBN C 30-228)
Operating temperature
90°C continuous operation
Overload temperature
120°C /100h per year max./
Short circuit temperature
250°C /5 s max./
Nominal voltage Uo/U:
8.7/15; 12/20; 20,8/36 kV
Highest system voltage
8.7/15; 12/20; 20.8/36 kV
Uo/U, no more than
17.5 kV; 24 kV; 41.5kV
Test voltage Uo/U
8.7/15;   12/20;   20.8/36 kV
AC ( ) - 5 min
35 kV; 48 kV;   83 kV
Level of partial discharge at 2*Uo
max. 5 pC
Bending radius, min
15x D cable
Temperature of laying
no less than - 15°C
Temperature of
exploitation
 -30 to 50°C
Tests
according to NBN C 33 323
Force of strain in laying N max. where:

 
 
Al cores - 30*n*S core
Cu cores - 50*n*S core
N is number of cores and S is cross section of cores in mm
 
Construction data EXeCVB; EAXeCVB   8.7/15; 12/20kV; 20.8/3
Number of condutors and nominal cross section
Thic­kness of insulation
 
Thic­kness of sheath
 
Nominal
cross section of screen
Cable 
diameter
approx.
 EXeCVB
EAXeCVB
Mass of
Cu 
approx.
Mass of
cable
approx.
Mass of
Al approx.
 
 
Mass of
Cu approx.
 
 
Mass of
cable
approx.
Nxmm2
mm
mm
 mm2
mm
kg/km
kg/km
kg/km
kg/km
kg/km
8.7/15 kV
 
 
 
 
 
 
 
 
 
1x25rm/16
4.5
2.6
16
26.8
490
1048
68
265
890
1x50 rm /16
4.5
2.6
16
29.0
690
1319
130
265
1024
1x95 rm /25 1x150rm/25
4.5
4.5
2.6
2.9
25
25
32.5
35.9
1120
1595
1858 2473
260
405
265
265
1263 1548
1x240 rm/25 1x400rm /25
4.5
4.5
3.1
3.3
25
35
40.0
47.3
2661
4344
3510 5204
665 1060
265
363
1985 2792
12/2OkV
 
 
 
 
 
 
 
 
 
1x50 rm /16
5.5
2.6
16
31.4
690
1414
130
265
1119
1x95 rm /25
5.5
2.7
25
35.0
1120
1979
260
265
1384
1x150 rm/25 1x240 rm/25
5.5
5.5
3.0
3.1
25
25
38.4
42.7
1595
2661
2607 3641
405
665
265
265
1682 2116
1x400rm /35
5.5
3.3
35
49.6
4344
5348
1060
363
2936
20.8/36 kV
 
 
 
 
 
 
 
 
 
1x120 rm/25
8,8
3.0
25
43.5
1345
2772
330
265
2022
1x150 rm/25 1x240 rm/25
8,8
8,8
3.2
3.4
25
25
45.3
49.8
1595
2455
3136 4252
405
665
265
265
2211 2727
1x400 rm/35
8,8
3.6
35
56.9
3835
6047
1060
363
3635