XLPE INSULATED POWER CABLE
CONTENT
INTRODUCTION_________________________________________________2
WHAT IS XLPE? _________________________________________________3
CHARACTERISTICS AND ADVANTAGES OF XLPE ____________________4
MANUFACTURING PROCESS OF XLPE CABLES _____________________5
STRUCTURAL DESIGN AND PERFORMANCE OF XLPE CABLES ________6
PROCESS OF XLPE CABLES______________________________________7
TESTING PROCEDURES OF XLPE CABLES__________________________8
CABLE STRUCTURAL DESCRIPTION AND CONSTRUCTION DATA______10
TECHNICAL DATA_ _____________________________________________44
1
INTRODUCTION
Leader Cable Industry Berhad was incorporated in 1976 as a private company prior to its
merger with Universal Cable (M) Berhad in 1990 to form the single largest wire and cable
manufacturer in the region. As part of Leader Universal Holdings Berhad (LEADER), a public
company listed under the Kuala Lumpur Stock Exchange Malaysia, Leader Cable shares the
group’s extensive network for synergistic integration in areas of cable technology.
Leader Cable, together with its subsidiary companies, cover a broad spectrum
of products which includes telecommunication cables, data cables, XLPE and
PVC power and cntrol cables, rubber insulated cables and electrical grade
aluminium rods. Continued capital investment has enabled Leader Cable to
extablish state-of-the-art facilities and utilize innovative improvements and
refinements through critical selection of raw materials to produce better
and more cost-effective products for its customers.
With a strong emphasis on customer satisfaction, Leader Cable is
constantly expanding their product range to enhance its position as a
major supplier of power and telecommunication cables to local industries
and increase its prominence abroad.
This catalogue serves as a guide to LCIB’s manufacturing processes and
standards in the manufacturing of XLPE cables.
WHAT IS XLPE?
XLPE is an abbreviated designation of “cross-linked polyethylene”. Polyethylene has a
linear molecular structure as shown in A. Molecules of polyethlene not chemically bonded
as shown in B are easily deformed at high temperature, while XLPE molecules bonded in a
three dimensional network as shown in C and D, have strong resistance to deformation even
at high temperature.
Cross linked polyethylene is produced from polyethylene under high pressure with
organic peroxides as additives. The application of heat and pressure is used to
effect the cross linking. This causes the individual molecular chains to link with
one another which in turn causes the material to change from a thermoplastic
to an elastic material.
An important advantage of XLPE as insulation for medium and high
voltage cables is their low dielectric loss. The dielectric loss factor is
about one decimal power lower than that of paper insulated cables and
about two decimal powers lower than that of PVC- insulated cables.
Since the dielectric constant is also more favourable, the mutual
capacitance of XLPE cables is also lower, thus reducing the charging
currents and earth-leakage currents in networks without the rigid starpoint earthing.
POLYETHYLENE
A
B
H
H
H
H
H
C
C
C
C
C
H
H
H
H
H
XLPE
C
H
D
H
C
C
H
H
H
H
C
C
H
C
C
H
H
C
C
H
CHARACTERISTICS AND
ADVANTAGES OF XLPE
Excellent Electrical and Physical Properties
XLPE cable constitues the best cable for transmission and distribution lines because of its
excellent eletrical and physical properties.
Capability of Carrying Large Currents
The excellent resistance to thermal deformation and the excellent aging property
of XLPE cable permit it to carry large currents under normal (90ºC), emergency
(130ºC) or short circuit (250ºC) conditions.
Ease of Installation
XLPE cable withstands smaller radius bending and is lighter in weight,
allowing for easy and reliable installation.Furthermore, the splicing and
terminating methods for XLPE cable are simpler in comparison with other
kinds of cables.
Free from Height Limitation and Maintenance
XLPE cables can be installed anywhere without special consideration of the route
profile (height limitations) since it does not contain oil and thus is free from failures due to
oil migration in oil-filled cables.
No Metallic Sheath Required
XLPE cable does not generally demand a metallic sheath. Thus it is free from the failures
peculiar to metallic-sheathed cables, such as corrosion and fatigue.
MANUFACTURING
PROCESS OF
XLPE CABLES
In the manufacture of medium and high voltage XLPE cable, our plant uses the latest
technology available in the field by using an integrated high performance extrusion line
which consists of a triple-layer crosshead and a water-free Completely Dry Curing and
Cooling (CDCC) gas vulcanizing process. This type of extrusion line minimises the
risk of introducing external contaminants and produces high quality XLPE cable.
The conductor is paid off continuously through a metering capstan (which is
the line speed master point), a triple extruder crosshead, a vulcanizing tube,
an eccentricity monitoring unit, and haul-off caterpillars, and finally taken
up.
Using a group of three extruders, the triple crosshead allows
simoultaneous extrusion of the cable insulation and two semiconducting
screens with a high degree of smoothness and no voids or introduction of
external contaminants. Precise and stable temperature at the crosshead
are achieved by using multiple zonre temperature controls.
In the water-free CDCC gas vulcanizing process, the triple-extruded cable
core is cured in an inert pressurised gas tube and heated to the required
temperature for material cross-linking. By varying the curing temperature
and time, different cure percentages can be achieved as per customer
requirements.
The various functions
of our integrated
extrusion line such as
line speed and curing tube
temperature synchronisation
are monitored and controlled
via the process automation
computers to ensure production
of quality ramps. Calculated
ramp parameters can be preset
on the control unit and closed
circuit TV system is used to
ease the running of the lines.
STRUCTURAL DESIGN
AND PERFORMANCE OF
XLPE CABLES
The design of XLPE cables conform to international standards and are similar to those in
IEC 60502 and IEC 60840/XLPE insulated cables for medium and high voltages have, in
general, circular conductors and only single core construction is adopted for the latter.
Conductors may be of compacted stranded aluminium or stranded copper and
special care if taken to ensure a smooth profile, free from sharp juts that could
damage the insulation due to high local electric stresses.
All XLPE insulated cables of Medium Voltage are supplied with extruded
cross-linked semiconducting screens to protect the main solid XLPE
insulation. The conductor screen fills the interstices between the wires
and provide a smooth circular envelope around the conductor. This
diminishes the concentration of flux lines around the individual wires and
hence the electrical stress around the conductor. While the insulation
screen can be either strippable or bonded for MV cables depending
on the customer’s option, bonded screen is used exclusively for high
voltage cables.
A layer of copper wires, applied over the extruded the insulation screen, as
a metallic screen, provides an earthed envelope.The cross sectional area of
this metallic screen is determined in order to satisfy the phase to earth fault
level in the network.
PROCESS OF
XLPE CABLES
Although it has been verified that XLPE cables can be applied with a conductor temperature
of 130ºC for emergency overload conditions, it must be understood that the erecting and
laying conditions necessary to allow for those temperatures must be accurately carried
out and controlled during installation in order to restrict thermomechanical problems. To
be realistic, emergency conditions should be confined to 110ºC at conductor with the
balance of 20ºC premeditated as a safety margin to cope with some concerns in the
laying conditions.
Subsequent to the constant use of XLPE for medium and high voltages for
many years in the past, our plant has extensive field test results which
evidently witness that XLPE insulated cables are of excellent quality
particularly in respect of: •
partial discharges withstandability
•
impulse test withstandability
•
moisture resistance
•
overload current-tests under dielectric stress and thermic cycles
TESTING PROCEDURES
FOR XLPE CABLES
At our plant the testing process of XLPE cables and its accessories is subjected to the
most stringent standards to ensure that our products meet the quality required for
optimum problem free performance.
In this respect our plant uses advanced state of the art testing equipment in a
strict series of test processes to achieve the exacting quality standards.
Among the main test equipment
1.
Partial Discharge Test Sytem
2.
Impulse Test System
3.
Capacitance & Power Factor Measuring Bridge
4.
A.C. High Voltage Test System
5.
A.C. Long Time Test System
TESTING PROCEDURES
FOR XLPE CABLES
The different tests employed are listed as such:
Routine Tests
These are tests to monitor overall cable quality and function. Tests listed here include high
voltage tests, conductor resistance tests, insulation resistance tests and voltage tests on
protective sheath coverings.
Type Tests
These tests are used to calibrate and validate cable design type and they include
bending tests, thermal stability tests, impulse voltage tests, head distortion tests,
corona level tests and dielectric thermal resistance tests.
Special Tests
These tests are conducted to ensure major design changes to cables
conform to proper performance tresholds.
After Installation Tests
These tests are to determine and ensure that cables installed are in
optimum operating conditions. Conductor resistance test on the completed
circuit verification tests of cross bonded systems and surge divertor tests
are among the running lists of such critical test requirements.
Voltage
designation;
Uo/U (Um)
The rated voltages for cables are expressed in the form Uo/U (Um).
Uo
U
Um
The voltage designation for British Standard is as follows:
0.6/1.0 (1.2) - 1.9/3.3 (3.6) - 3.8/6.6 (7.2) - 6.35/11 (12) - 8.7/15 (17.5) - 12.7/22 (24) - 19/33 (36) kV
The voltage designation for IEC is as follows:
0.6/1.0 (1.2) - 1.8/3.0 (3.6) - 3.6/6.0 (7.2) - 6/10 (12) - 8.7/15 (17.5) - 12/20 (24) - 18/30 (36) kV
0.6 / 1Kv XLPE INSULATED UNAROMOURED CABLES
Stranded
copper conductor
XLPE insulation
PVC sheath
Shaped stranded
aluminium conductor
XLPE insulation
Centre filler
Mylar tape
PVC sheath
DESCRIPTION
Single core and multi-core cables with copper or aluminium conductors XLPE insulated and PVC sheathed. Cables are rated
0.6 / 1 kV and conform to IEC 60502. (Refer to tables 6.1, 6.2, 6.3, 6.4, and 6.5)
CONSTRUCTION
Conductor
Plain circular or sector stranded copper or aluminium conductors, conform to IEC 228 class 2.
Insulation
XLPE (cross-linked polyethylene) rated 90°C.
Colour for core identification
Single core - red (black on request)
Two core - red & black
Three core - red, yellow and blue
Four core - red, yellow, blue and black
Assembly
Two, three or four insulated conductors are laid up together, if necessary filled with non-hygroscopic material compatible with the
insulation. The filling may be omitted provided the outer shape of the cable remains practically circular and no adhesion occur
between cores and sheath.
Sheath
PVC type ST2 to IEC 60502 colour black.
APPLICATIONS
These cables are designated for general use including underground burial, where they are not likely to suffer mechanical
damage.
NOTE: Cables complying with BS 5467 and customer’s specification are available upon request, modifications, which serve to improve our products will be
implemented without notice.
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
10
CONSTRUCTION DATA
Table 6.1 0.6 / 1kV SINGLE CORE
XLPE INSULATED, PVC SHEATHED UNARMOURED CABLES
Conductor
Nominal crosssectional area
Shape
mm2
Approx. cable weight
Nominal
thickness of
insulation
Nominal
thickness of
sheath
Approx. overall
diameter
Copper
Aluminium
mm
mm
mm
kg/ km
kg/ km
1.5
2.5
4
6
10
r.m.
r.m.
r.m.
r.m.
r.m.
0.7
0.7
0.7
0.7
0.7
1.4
1.4
1.4
1.4
1.4
6.1
6.5
7.1
7.6
8.6
52
64
83
107
153
-
16
25
35
50
70
c.c
c.c
c.c
c.c
c.c
0.7
0.9
0.9
1.0
1.1
1.4
1.4
1.4
1.4
1.4
9.6
11.3
12.6
14.0
16.0
217
324
423
554
771
115
160
195
240
325
95
120
150
185
240
c.c
c.c
c.c
c.c
c.c
1.1
1.2
1.4
1.6
1.7
1.5
1.5
1.6
1.6
1.7
18.2
19.9
22.2
24.4
27.5
1042
1293
1589
1971
2574
420
515
630
780
995
300
400
500
630
800
1000
c.c
c.c
c.c
c.c
c.c
r.m.
1.8
2.0
2.2
2.4
2.6
2.8
1.8
1.9
2.0
2.2
2.3
2.4
30.3
34.0
37.7
42.5
42.4
52.5
3201
4070
5098
6561
8327
10426
1220
1535
1910
2485
2910
3870
Table 6.2 0.6 / 1kV TWO CORE
XLPE INSULATED, PVC SHEATHED UNARMOURED CABLES
Conductor
Nominal crosssectional area
Shape
mm2
Approx. cable weight
Nominal
thickness of
insulation
Nominal
thickness of
sheath
Approx. overall
diameter
Copper
Aluminium
mm
mm
mm
kg/ km
kg/ km
1.5
2.5
4
6
10
r.m.
r.m.
r.m.
r.m.
r.m.
0.7
0.7
0.7
0.7
0.7
1.8
1.8
1.8
1.8
1.8
10.1
10.9
12.0
13.1
15.0
134
155
200
255
365
-
16
25
35
50
70
c.c
c.c
s.m.
s.m.
s.m.
0.7
0.9
0.9
1.0
1.1
1.8
1.8
1.8
1.8
1.8
17.2
17.0
18.7
21.0
24.0
490
655
850
1110
1550
285
330
395
500
660
95
120
150
185
240
s.m.
s.m.
s.m.
s.m.
s.m.
1.1
1.2
1.4
1.6
1.7
1.9
2.0
2.2
2.3
2.5
26.9
29.9
33.4
37.1
41.7
2090
2620
3230
4020
5260
820
1030
1235
1545
1900
300
400
s.m.
s.m.
1.8
2.0
2.6
2.9
45.8
51.6
6540
8350
2395
2940
11
Table 6.3 0.6 / 1kV THREE CORE
XLPE INSULATED , PVC SHEATHED UNARMOURED CABLES
Conductor
Nominal crosssectional area
Shape
mm2
Approx. cable weight
Nominal
thickness of
insulation
Nominal
thickness of
sheath
Approx. overall
diameter
Copper
Aluminium
mm
mm
mm
kg/ km
kg/ km
1.5
2.5
4
6
10
r.m
r.m
r.m
r.m
r.m
0.7
0.7
0.7
0.7
0.7
1.8
1.8
1.8
1.8
1.8
10.5
11.4
12.6
13.8
15.8
149
185
245
320
470
-
16
25
35
50
70
c.c.
c.c.
s.m.
s.m.
s.m.
0.7
0.9
0.9
1.0
1.1
1.8
1.8
1.8
1.8
1.9
17.3
19.4
21.4
24.1
27.9
650
935
1235
1610
2285
345
450
560
695
965
95
120
150
185
240
s.m.
s.m.
s.m.
s.m.
s.m.
1.1
1.2
1.4
1.6
1.7
2.0
2.1
2.3
2.4
2.6
31.4
34.9
39.1
43.5
48.8
3090
3875
4780
5960
7810
1260
1560
1940
2395
3080
300
400
500
s.m.
s.m.
s.m.
1.8
2.0
2.2
2.8
3.0
3.3
53.7
60.7
65.7
9700
12400
15500
3765
4810
5935
Table 6.4 0.6 / 1kV FOUR CODE
XLPE INSULATED, PVC SHEATHED UNARMOURED CABLES
Conductor
Nominal crosssectional area
Shape
mm2
12
Approx. cable weight
Nominal
thickness of
insulation
Nominal
thickness of
sheath
Approx. overall
diameter
Copper
Aluminium
mm
mm
mm
kg/ km
kg/ km
1.5
2.5
4
6
10
r.m
r.m
r.m
r.m
r.m
0.7
0.7
0.7
0.7
0.7
1.8
1.8
1.8
1.8
1.8
10.5
11.4
12.6
13.8
15.8
149
185
245
320
470
-
16
25
35
50
70
c.c
c.c
s.m.
s.m.
s.m.
0.7
0.9
0.9
1.0
1.1
1.8
1.8
1.8
1.8
1.9
17.3
19.4
21.4
24.1
27.9
650
935
1235
1610
2285
345
450
560
695
965
95
120
150
185
240
s.m.
s.m.
s.m.
s.m.
s.m.
1.1
1.2
1.4
1.6
1.7
2.0
2.1
2.3
2.4
2.6
31.4
34.9
39.1
43.5
48.8
3090
3875
4780
5960
7810
1260
1560
1940
2395
3080
300
400
500
s.m.
s.m.
s.m.
1.8
2.0
2.0
2.8
3.0
3.3
53.7
60.7
65.7
9700
12400
15500
3765
4810
5935
Table 6.5
0.6 / 1kV FOUR CORE WITH REDUCED NEUTRAL
CONDUCTOR, XLPE INSULATED, PVC SHEATHED UNARMOURED CABLES
Conductor
Nominal
crosssectional
area
Shape
Approx. cable weight
Nominal
crosssectional
area
Phase
Shape
Neutral
mm2
mm2
Nominal thickness of
insulation
Nominal
thickness of
sheath
Approx.
overall
diameter
Copper
Aluminium
Phase
Neutral
mm
mm
mm
mm
kg/ km
kg/ km
10
16
25
r.m
c.c
c.c
6
10
16
r.m
r.m
r.m
0.7
0.7
0.9
0.7
0.7
0.7
1.8
1.8
1.8
17.3
18.9
21.7
560
780
1165
580
35
50
70
s.m
s.m
s.m
16
25
35
r.m
r.m
r.m
0.9
1.0
1.1
0.7
0.9
0.9
1.8
1.8
1.9
24.1
27.7
31.7
1515
1945
2840
740
870
1300
95
120
150
s.m
s.m
s.m
50
70
70
r.m
r.m
r.m
1.1
1.2
1.4
1.0
1.1
1.1
2.1
2.2
2.3
35.8
39.8
44.4
3650
4850
5660
1390
1780
2390
185
240
300
s.m
s.m
s.m
95
120
150
r.m
r.m
r.m
1.6
1.7
1.8
1.1
1.2
1.4
2.5
2.7
2.9
49.6
55.8
61.7
7045
9115
11300
2885
3630
4440
400
500
s.m
s.m
185
240
r.m
r.m
2.0
2.2
1.6
1.7
3.1
3.4
68.8
79.0
14580
18435
5825
7325
Note : r.m. - circular stranded conductor
c.c - compacted circular stranded conductor
s.m. - second stranded conductor, circular conductors can be produced on request
13
0.6 / 1Kv XLPE INSULATED AROMOURED CABLES
Stranded
copper conductor
XLPE insulation
Double
steel tapes
PVC sheath
Centre filler
Sectoral
copper conductor
XLPE insulation
PVC bedding
Round steel
wire armour
PVC sheath
DESCRIPTION
Single core and multi-core cables with copper of aluminium conductors XLPE insulated, armoured and PVC sheathed
Cables are rated 0.6 / 1kV and conform to IEC 60502. (Refer to tables 6.6, 6.7, 6.8, 6.9 and 6.10)
CONSTRUCTION
Conductor
Plain circular or sector stranded copper or aluminium conductors, conform to IEC 228 class 2.
Insulation
XLPE (cross-linked polyethylene) rated 90°C.
Colour for core identification
Colour for core indentification
Single core - red
Two core - red & black
Three core - red, yellow and blue
Four core - red, yellow, blue and black
Assembly
Two, three or four insulated conductor are laid up together, if necessary filled with non-hygroscopic material compatible
with the insulation and covered with the layer of PVC bedding which may be an integral part of the filling.
Armoured
Galvanized steel wires applied over the PVC bedding.
Sheath
PVC type ST2 to IEC 60502 colour black.
APPLICATIONS
These cables are most suitable for underground burial where there is a risk of mechanical damage.
NOTE: Cables complying with BS 5467 and customer’s specification are available upon request, modifications, which serve to improve our products will
be implemented without notice.
14
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.6 0.6 / 1kV SINGLE CORE, XLPE INSULATED,
PVC SHEATHED ARMOURED CABLES
Conductor
Nominal
crosssectional area
Shape
mm²
Approx. cable weight
Nominal
thickness of
insulation
Nominal
diameter of
aluminium
wire
Nominal
thickness of
sheath
Approx.
overall
diameter
Copper
Aluminium
mm
mm
mm
mm
kg/ km
kg/ km
50
70
95
120
c.c
c.c
c.c
c.c
1.0
1.1
1.1
1.2
1.25
1.25
1.25
1.60
1.8
1.8
1.8
1.8
20.0
21.0
21.8
25.8
760
985
1260
1645
460
555
660
890
150
185
240
300
c.c
c.c
c.c
c.c
1.4
1.6
1.7
1.8
1.60
1.60
1.60
1.60
1.8
1.8
1.9
1.9
27.7
30.0
32.7
35.1
1970
2385
3020
3665
1040
1220
1475
1725
400
500
630
800
1000
c.c
c.c
c.c
c.c
c.c
2.0
2.2
2.4
2.6
2.8
2.00
2.00
2.00
2.50
2.50
2.1
2.2
2.3
2.5
2.7
40.0
43.5
48.2
53.9
62.5
4740
5830
7390
9540
11860
2260
2705
3345
4375
6350
Table 6.7 0.6/ 1 kV TWO CORE, XLPE INSULATED
PVC SHEATHED ARMOURED CABLES
Conductor
Nominal
crosssectional
area
Approx. cable weight
Shape
mm²
Nominal
thickness of
insulation
Nominal
diameter of
steel wire
Nominal
thickness of
sheath
Approx.
overall
diameter
Copper
Aluminium
mm
mm
mm
mm
kg/ km
kg/ km
1.5
2.5
4
6
r.m
r.m
r.m
r.m
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.8
1.8
1.8
1.8
1.8
14.0
14.9
16.0
17.1
350
400
475
550
-
10
16
25
35
r.m
c.c
c.c
s.m
0.7
0.7
0.9
0.9
1.25
1.25
1.6
1.6
1.8
1.8
1.8
1.7
19.0
20.3
23.2
24.9
700
860
1280
1525
655
955
1075
50
70
95
120
s.m
s.m
s.m
s.m
1.0
1.1
1.1
1.2
1.6
1.6
2.0
2.0
1.8
2.0
2.1
2.2
27.1
30.5
34.2
37.5
1870
2450
3310
4010
1260
1570
2090
2470
150
185
240
300
400
s.m
s.m
s.m
s.m
s.m
1.4
1.6
1.7
1.8
2.0
2.0
2.5
2.5
2.5
2.5
2.3
2.5
2.7
2.8
3.1
40.9
45.9
50.8
54.8
61.2
4740
6120
7650
9115
11335
2845
3745
4500
5160
6275
Note : r.m. - circular stranded conductor
c.c - compacted circular stranded conductor
s.m. - second stranded conductor, circular conductors can be produced on request
15
Table 6.8 0.6 / 1kV THREE CORE XLPE INSULATED ,
PVC SHEATHED ARMOURED CABLES
Conductor
Nominal
crosssectional
area
Shape
mm²
Approx. cable weight
Nominal
thickness of
insulation
Nominal
diameter of
aluminium
wire
Nominal
thickness of
sheath
Approx.
overall
diameter
Copper
Aluminium
mm
mm
mm
mm
kg/ km
kg/ km
1.5
2.5
4
6
10
r.m
r.m
r.m
r.m
r.m
0.7
0.7
0.7
0.7
0.7
0.80
0.80
0.80
0.80
1.25
1.8
1.8
1.8
1.8
1.8
14.5
15.4
16.6
17.8
20.5
385
450
535
640
950
-
16
25
35
50
70
c.c.
c.c.
s.m
s.m
s.m
0.7
0.9
0.9
1.0
1.1
1.25
1.60
1.60
1.60
2.00
1.8
1.8
1.8
1.8
2.0
22.0
25.7
27.7
30.5
35.1
1180
1650
2015
2520
3535
840
1165
1340
1605
2215
95
120
150
185
240
s.m
s.m
s.m
s.m
s.m
1.1
1.2
1.4
1.6
1.7
2.00
2.00
2.50
2.50
2.50
2.2
2.3
2.5
2.6
2.8
39.3
42.7
47.9
52.7
58.1
4565
5510
6990
8120
10500
2735
3200
4150
4555
5770
300
400
500
s.m
s.m
s.m
1.8
2.0
2.2
2.50
2.50
3.15
3.0
3.2
3.5
63.7
70.3
80.1
12695
15540
20385
6760
7950
10820
Table 6.9 0.6 / 1kV FOUR CORE XLPE INSULATED,
PVC SHEATHED ARMOURED CABLES
Conductor
Nominal
crosssectional
area
Shape
mm²
Approx. cable weight
Nominal
thickness of
insulation
Nominal
diameter of
aluminium
wire
Nominal
thickness of
sheath
Approx.
overall
diameter
Copper
Aluminium
mm
mm
mm
mm
kg/ km
kg/ km
1.5
2.5
4
6
10
r.m
r.m
r.m
r.m
r.m
0.7
0.7
0.7
0.7
0.7
0.8
0.8
0.8
1.3
1.3
1.8
1.8
1.8
1.8
1.8
15.3
16.3
17.6
19.7
22.0
435
510
615
850
1100
-
16
25
35
50
70
c.c.
c.c.
s.m.
s.m.
s.m.
0.7
0.9
0.9
1.0
1.1
1.6
1.6
1.6
2.0
2.0
1.8
1.8
1.9
2.0
2.2
25.2
28.0
30.5
33.7
39.5
1530
2030
2525
3160
4555
1120
1380
1625
1945
2795
95
120
150
185
240
s.m.
s.m.
s.m.
s.m.
s.m.
1.1
1.2
1.4
1.6
1.7
2.0
2.5
2.5
2.5
2.5
2.3
2.5
2.6
2.8
3.0
43.7
49.1
53.7
58.9
65.5
5795
7485
8925
10830
13720
3355
4400
5135
6080
7415
300
400
500
s.m.
s.m.
s.m.
1.8
2.0
2.2
2.5
3.15
3.15
3.2
3.5
3.8
71.3
80.9
90.8
16585
21580
26150
8675
11460
13395
Note : r.m. - circular stranded conductor
c.c - compacted circular stranded conductor
s.m. - second stranded conductor, circular conductors can be produced on request
16
Table 6.10 0.6 / 1 kV FOUR CABLE WITH REDUCED NEUTRAL
OCNDUCTOR, XLPE INSULATED, PVC SHEATHED ARMOURED CABLES
Conductor
Nominal
crosssectional
area
Shape
Approx. cable weight
Nominal
crosssectional
area
Phase
Shape
Neutral
mm2
Nominal thickness
of insulation
Nominal
diameter of Nominal
steel wire thickness
of sheath
Approx.
overall
diameter
Copper
Aluminium
Phase
Neutral
Neutral
mm
mm
mm
mm
mm
kg/ km
kg/ km
16
25
35
c.c.
c.c.
s.m.
10
16
16
r.m.
r.m.
r.m.
0.7
0.9
0.9
0.7
0.7
0.7
1.25
1.6
1.6
1.8
1.8
1.8
25.2
28.0
30.5
1275
1880
2415
1295
1640
50
70
95
s.m.
s.m.
s.m.
25
35
50
r.m.
r.m.
r.m.
1.0
1.1
1.1
0.9
0.9
1.0
1.6
2.0
2.0
1.9
2.1
2.2
33.7
39.5
43.7
2960
4330
5415
1888
2790
3290
120
150
185
s.m.
s.m.
s.m.
70
70
95
r.m.
r.m.
r.m.
1.2
1.4
1.6
1.1
1.1
1.1
2.0
2.5
2.5
2.3
2.5
2.7
49.1
53.7
58.9
7150
7675
9930
4255
4405
5770
240
300
400
500
s.m.
s.m.
s.m.
s.m.
120
150
185
240
r.m.
r.m.
r.m.
r.m.
1.7
1.8
2.0
2.2
1.2
1.4
1.6
1.7
2.5
2.5
2.5
3.15
2.9
3.0
3.3
3.6
65.5
71.3
80.9
90.8
12390
14845
19700
23880
6905
7985
10945
12690
17
1.8 / 3kV XLPE INSULATED ARMOURED CABLES
Stranded
aluminium conductor
XLPE insulation
PVC bedding
Round hard drawn
aluminium wire armour
PVC outersheath
DESCRIPTION
Single core and multi-core cables with copper or aluminium conductors XLPE insulated, armoured and PVC sheathed.
Cables are rated 1.8 / 3kV and conform to IEC 60502. (Refer to tables 6.11 and 6.12)
CONSTRUCTION
Conductor
Plain circular stranded copper or aluminium conductors, conform to IEC 228 class 2.
Insulation
XLPE (cross-linked polyethylene) rated 90°C
Colour for core identification
Single core - red
Three core - red, yellow and blue
Assembly
Three insulated conductors are laid up together, if necessary filled with non-hygroscopic material compatible with the insulation
and covered with a layer of PVC bedding which may be an integral part of the filling.
Armoured
Galvanized steel wires applied over the PVC bedding.
Sheath
PVC type ST2 to IEC 60502 colour black.
APPLICATIONS
These cables are most suitable for underground burial where there is a risk of mechanical damage.
NOTE : Cables complying with BS 5467 and customer’s specification are available upon request. Modifications which serve to improve our products wil be
implemented without notice.
18
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.11 1.8 / 3.0 (3.6)kV SINGLE CORE
XLPE INSULATED, PVC SHEATHED ARMOURED CABLES
Conductor
Nominal
crosssectional
area
Shape
mm²
Approx. cable weight
Nominal
thickness of
insulation
Nominal
diameter of
aluminium
wire
Nominal
thickness of
sheath
Approx.
overall
diameter
Copper
Aluminium
mm
mm
mm
mm
kg/ km
kg/ km
16
25
35
50
c.c.
c.c.
c.c.
c.c.
2.0
2.0
2.0
2.0
0.80
1.25
1.25
1.25
1.8
1.8
1.8
1.8
17.0
19.0
19.5
21.2
450
610
680
830
350
450
460
532
70
95
120
150
c.c.
c.c.
c.c.
c.c.
2.0
2.0
2.0
2.0
1.25
1.60
1.60
1.60
1.8
1.8
1.8
1.8
22.7
26.0
27.5
29.0
1060
1530
1725
2030
630
930
970
1100
185
240
300
400
c.c.
c.c.
c.c.
c.c.
2.0
2.0
2.0
2.0
1.60
1.60
1.60
2.00
1.8
1.9
2.0
2.1
31.0
33.5
36.0
40.0
2415
3060
3750
4750
1250
1515
1810
2270
500
630
800
1000
c.c.
c.c.
c.c.
r.m.
2.2
2.4
2.6
2.8
2.00
2.00
2.50
2.50
2.2
2.3
2.5
2.7
43.5
48.2
53.9
62.5
5835
7390
9540
11860
2710
3345
4375
6350
Table 6.11
1.8 / 3.0 (3.6)kV THREE CORE
XLPE INSULATED, PVC SHEATHED ARMOURED CABLES
Conductor
Nominal
crosssectional
area
Shape
mm²
Approx. cable weight
Nominal
thickness of
insulation
Nominal
diameter of
aluminium
wire
Nominal
thickness of
sheath
Approx.
overall
diameter
Copper
Aluminium
mm
mm
mm
mm
kg/ km
kg/ km
16
25
35
50
c.c.
c.c.
c.c.
c.c.
2.0
2.0
2.0
2.0
1.6
1.6
1.6
2.0
1.8
1.9
1.9
2.1
30.0
32.5
35.5
39.5
1250
2130
2680
3520
945
1645
2005
2605
70
95
120
150
c.c.
c.c.
c.c.
c.c.
2.0
2.0
2.0
2.0
2.0
2.0
2.5
2.5
2.2
2.3
2.4
2.5
43.0
47.0
52.0
55.5
4300
5300
6770
7800
2980
3470
4455
4960
185
240
300
400
500
c.c.
c.c.
c.c.
c.c.
c.c.
2.0
2.0
2.0
2.0
2.2
2.5
2.5
2.5
2.5
3.15
2.7
2.8
3.0
3.2
3.6
60.0
65.0
70.5
77.0
87
9310
11500
13800
16900
21970
5745
6770
7865
9310
12405
Note : r.m. - circular stranded conductor
c.c - compacted circular stranded conductor
s.m. - second stranded conductor, circular conductors can be produced on request
19
3.6 / 6kV INSULAED SINGLE CORE CABLES
6
5
4
3
2
1
DESCRIPTION
Circular straded compacted or aluminium conductor, XLPE insulated, with copper wire or copper tape screen and PVC
outer sheath. Complies with IEC 60502 (Refer to tables 6.13 and 6.14)
CONSTRUCTION
1. Conductor Plain circular compacted copper or alumimium conductor to IEC 228 class 2.
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material.
Insulation screen
5. Metallic part
Copper wire or copper tape screen
6. Outer sheath
PVC type ST2 to IEC 60502 colour black
APPLICATIONS
For installation on trays, ducts or direct burial.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
20
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.13 3.6/ 6.0 (7.2)kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
25
35
50
70
Screening
Nominal
thickness of
sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
6.0
7.1
8.3
9.9
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
95
120
150
185
11.7
13.2
14.6
16.4
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
240
300
400
500
18.8
21.0
23.8
26.7
2.6
2.8
3.0
3.2
630
800
1000
30.5
34.3
37.6
3.2
3.2
3.2
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
1.5
1.5
1.6
1.6
18.0
19.0
21.0
22.0
550
655
810
1040
395
435
515
610
0.1
0.1
0.1
0.1
1.7
1.7
1.8
1.8
24.0
26.0
27.0
29.0
1335
1595
1890
2275
740
840
965
1110
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
1.9
2.0
2.1
2.2
32.0
35.0
39.0
43.0
2875
3555
4410
5535
1330
1620
1930
2410
0.6
0.6
0.6
0.1
0.1
0.1
2.3
2.5
2.6
48.0
50.2
51.4
6995
8750
-
2950
3620
4265
Table 6.13
3.6/ 6.0 (7.2)kV SINGLE CORE XLPE INSULATED WITH
COPPER WIRE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor/
screen
Screening
Nominal
diameter of
conductor
mm2
Nominal
thickness of
insulation
Approx. weight of cable
Approx.
overall
diameter
Copper
Aluminium
mm
mm
kg/ km
kg/ km
Thickness of
extruded SC
layer
Nominal
thickness of
sheath
mm
mm
25 / 16
35 / 16
50 / 16
70 / 16
6.0
7.1
8.3
9.9
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
1.5
1.6
1.6
1.6
20
21
24
26
675
800
980
1225
515
580
680
795
95 / 16
120 / 16
150 / 25
185 / 25
11.7
13.2
14.6
16.4
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
1.7
1.7
1.8
1.8
28
30
31
33
1505
1785
2150
2550
905
1030
1220
1385
240 / 25
300 / 25
400 / 35
500 / 35
18.8
21.0
23.8
26.7
2.6
2.8
3.0
3.2
0.6
0.6
0.6
0.6
1.9
2.0
2.1
2.2
36
39
42
46
3170
3840
4855
5910
1625
1900
2375
2785
630 / 35
800 / 50
1000 / 50
30.5
34.3
37.6
3.2
3.2
3.2
0.6
0.6
0.6
2.3
2.5
2.6
50
54
58
7365
9210
-
3320
4080
4725
21
3.6 / 6kV XLPE INSULATED THREE CORE CABLES
8
7
6
5
4
3
2
1
DESCRIPTION
Stranded circular compacted copper or aluminium conductors, XLPE insulated, copper tape screened, three cores assembled
together with non-hygroscopic polypropylene fillers, covered with extruded bedding, armoured or unarmoured and PVC
sheathed Cables comply with IEC 60502. (Refer to tables 6.15 and 6.16)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2.
2. Conductor Screen
Extruded semiconductive compound.
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper tapes 0.10mm thickness
6. Bedding
Taped bedding for unarmoured cables, extruded PVC bedding for armoured cables.
7. Armour
Galvanized steel wires/ tapes applied helically over the PVC bedding.
8. Outer sheath
PVC types ST2 to IEC 60502 colour black.
Colour for core identification
Red, yellow and blue narrow tapes applied between non metallic and metallic part of insulation screen.
APPLICATIONS
These cables are generally suitable for direct burial or for installation on trays or ducts. Where there is a risk of mechanical
damage, armoured cables should be used.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
22
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.15 3.6 / 6(7.2)kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
25
35
50
70
Screening
Nominal
thickness
of sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
6.0
7.1
8.3
9.9
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
95
120
150
185
11.7
13.2
14.6
16.4
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
240
300
400
500
18.8
21.0
23.8
26.7
2.6
2.8
3.0
3.2
0.6
0.6
0.6
0.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.1
2.1
2.2
2.3
35.0
37.0
40.0
44.0
1540
1900
2390
3130
1060
1230
1480
1810
0.1
0.1
0.1
0.1
2.5
2.6
2.7
2.8
48.0
52.0
55.0
59.0
4060
4910
5820
7060
2230
2600
2980
3500
0.1
0.1
0.1
0.1
3.0
3.2
3.4
3.6
65.0
72.0
79.0
87.0
8990
11100
14000
17300
4260
5170
6410
7735
Nominal
thickness of
sheath
Approx.
overall
diameter
Table 6.16 3.6 / 6 (7.2) kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED ARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
25
35
50
70
Screening
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
6.0
7.1
8.3
9.9
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
95
120
150
185
11.7
13.2
14.6
16.4
2.5
2.5
2.5
2.5
0.6
0.6
0.6
0.6
240
300
400
500
18.8
21.0
23.8
26.7
2.6
2.8
3.0
3.2
0.6
0.6
0.6
0.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.0
2.5
2.5
2.5
2.3
2.4
2.5
2.6
45
48
51
55
3225
3980
4335
4920
0.1
0.1
0.1
0.1
2.5
2.5
2.5
2.5
2.7
2.9
3.0
3.1
59
63
66
70
5545
6180
6825
7560
0.1
0.1
0.1
0.1
2.5
3.15
3.15
3.15
3.3
3.5
3.8
4.0
76
85
93
101
8700
11200
12990
15190
23
6 / 10Kv XLPE INSULATED SINGLE CORE CABLES
6
5
4
3
2
1
DESCRIPTION
Circular stranded compacted copper or aluminium conductor, XLPE insulated, with copper tape screen and PVC
outer sheath. Complies with IEC 60502 ( Refer to tables 6.17 and 6.18)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2.
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper wire of copper tape screen
6. Outer Sheath
PVC type ST2 to IEC 60502 colour black.
APPLICATIONS
For installation on trays, ducts or direct burial.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will
be implemented without notice.
24
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.17 6 / 10 (12) kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
25
35
50
70
Screening
Nominal
thickness
of sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
6.0
7.1
8.3
9.9
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
95
120
150
185
11.7
13.2
14.6
16.4
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
240
300
400
500
18.8
21.0
23.8
26.7
3.4
3.4
3.4
3.4
630
800
1000
30.5
34.3
37.6
3.4
3.4
3.4
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
1.6
1.6
1.6
1.7
20.0
21.0
23.0
24.0
615
745
890
1130
460
525
590
700
0.1
0.1
0.1
0.1
1.7
1.8
1.8
1.9
26.0
28.0
29.0
31.0
1425
1695
2150
2520
830
940
1225
1355
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.0
2.0
2.2
2.2
34.0
37.0
40.0
43.0
3015
3630
4510
5565
1470
1690
2030
2440
0.6
0.6
0.6
0.1
0.1
0.1
2.4
2.5
2.6
48.0
51.0
54.4
7050
8815
-
3005
3685
4320
Table 6.18 6 / 10 (12) kV SINGLE CORE XLPE INSULATED WITH
COPPER WIRE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
25 / 16
35 / 16
50 / 16
70 / 16
Screening
Thickness of extruded
SC layer
Nominal
thickness of
sheath
Approx.
overall
diameter
mm
mm
mm
6.0
7.1
8.3
9.9
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
95 / 16
120 / 16
150 / 25
185 / 25
11.7
13.2
14.6
16.4
3.4
3.4
3.4
3.4
240 / 25
300 / 25
400 / 35
500 / 35
18.8
21.0
23.8
26.7
630 / 35
800 / 50
1000 / 50
30.5
34.3
37.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
1.6
1.6
1.7
1.7
22
23
26
28
745
860
1065
1300
590
640
765
870
0.6
0.6
0.6
0.6
1.8
1.8
1.9
1.9
30
32
33
35
1600
1870
2255
2640
1000
1115
1325
1475
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
2.0
2.1
2.2
2.3
38
40
43
46
3280
3930
4900
5940
1735
1990
2420
2815
3.4
3.4
3.4
0.6
0.6
0.6
2.4
2.5
2.7
50
55
59
7425
9280
-
3380
4150
4820
25
6 / 10kV XLPE INSULATED THREE CORE CABLES
8
7
6
5
4
3
2
1
DESCRIPTION
Stranded circular compacted copper or aluminium conductors, XLPE insulated, copper tape screened, three cores
assembled together with non-hygroscopic polypropylene fillers, covered with extruded bedding, armoured or
unarmoured and PVC sheathed. Cables comply with IEC 60502. (Refer to tables 6.19 and 6.20)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2.
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper tapes 0.10 mm thickness
6. Bedding
Taped bedding or extruded PVC bedding
7. Armour
Galvanized steel wires/ tapes applied helically over the PVC bedding.
8. Outer sheath
PVC types ST2 to IEC 60502 colour black.
Colour for core identification
Red, yellow and blue narrow tapes applied between non metallic and metallic part of insulation screen.
APPLICATIONS
These cables are generally suitable for direct burial or for installation on trays or ducts. Where there is a risk of
mechanical damage, armoured cables should be used.
NOTE : NOTE: Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our
products will be implemented without notice.
26
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.19 6 / 10(12)kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
25
35
50
70
Screening
Nominal
thickness of
sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
6.0
7.1
8.3
9.9
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
95
120
150
185
11.7
13.2
14.6
16.4
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
240
300
400
500
18.8
21.0
23.8
26.7
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.2
2.3
2.4
2.5
39.0
42.0
45.0
49.0
1830
2220
2730
3500
1350
1550
1820
2180
0.1
0.1
0.1
0.1
2.6
2.7
2.8
2.9
53.0
56.0
60.0
64.0
4410
5310
6250
7510
2580
3000
3410
3950
0.1
0.1
0.1
0.1
3.1
3.3
3.5
3.7
69.0
75.0
81.0
88.0
9440
11500
14300
17600
4710
5570
6710
8030
Table 6.20 6 / 10(12)kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED ARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness
of
insulation
Screening
Nominal
thickness of
SC layer
mm2
mm
mm
25
35
50
70
6.0
7.1
8.3
9.9
95
120
150
185
240
300
400
500
Approx.
thickness
of Cu tape
Nominal
diameter
of steel
wire
Nominal
thickness
of sheath
Approx.
overall
diameter
mm
mm
mm
mm
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.5
2.5
2.5
2.5
11.7
13.2
14.6
16.4
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
18.8
21.0
23.8
26.7
3.4
3.4
3.4
3.4
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.5
2.6
2.7
2.8
52
53
56
60
4790
5200
5630
6680
4300
4525
4715
2360
2.5
2.5
2.5
2.5
2.9
3.0
3.1
3.3
64
67
71
75
7870
9020
10735
11750
6040
6705
7890
8185
3.15
3.15
3.15
3.15
3.5
3.7
3.9
4.1
82
89
98
102
15060
17705
21725
25025
10330
11770
14135
15460
27
8.7 / 15(17.5)kV XLPE INSULATED
SINGLE CORE CABLES
6
5
4
3
2
1
DESCRIPTION
Circular stranded compacted copper or aluminiun conductor, XLPE insulated, with copper wire of copper tape screen and pvc
outer sheath. Complies with IEC 60502 (Refer to tables 6.21 and 6.22)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2.
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper wire or copper tape screen
6. Outer sheath
PVC type ST2 to IEC 60502 colour black
APPLICATIONS
For installation on trays, ducts or direct burial.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
28
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.21
8.7 / 15(17.5)kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness
of
insulation
Screening
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm2
mm
mm
mm
35
50
70
95
7.1
8.3
9.9
11.7
4.5
4.5
4.5
4.5
120
150
185
240
13.2
14.6
16.4
18.8
300
400
500
630
800
1000
Nominal
thickness
of sheath
Approx.
overall
diameter
mm
mm
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
21.0
23.8
26.7
30.5
4.5
4.5
4.5
4.5
34.3
37.6
4.5
4.5
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
1.7
1.7
1.8
1.8
24.0
25.0
27.0
28.0
845
990
1240
1535
625
690
810
940
0.1
0.1
0.1
0.1
1.9
1.9
2.0
2.1
30.0
32.0
34.0
37.0
1825
2110
2545
3165
1070
1180
1380
1620
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.1
2.2
2.3
2.4
39.0
42.0
45.0
51.0
3790
4655
5755
7295
1850
2175
2630
3250
0.6
0.6
0.1
0.1
2.6
2.7
53.4
57.2
9020
-
3890
4560
Table 6.22 8.7 / 15(17.5)kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
35 / 16
50 / 16
70 / 16
95 / 16
Screening
Thickness of extruded
SC layer
Nominal
thickness of
sheath
Approx.
overall
diameter
mm
mm
mm
7.1
8.3
9.9
11.7
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
120 / 16
150 / 25
185 / 25
240 / 25
13.2
14.6
16.4
18.8
4.5
4.5
4.5
4.5
300 / 25
400 / 35
500 / 35
630 / 35
21.0
23.8
26.7
30.5
800 / 50
1000 / 50
34.3
37.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
1.7
1.7
1.8
1.8
27
29
31
33
955
1150
1405
1700
735
850
975
1100
0.6
0.6
0.6
0.6
1.9
1.9
2.0
2.1
34
36
38
40
1985
2380
2780
3420
1230
1450
1615
1875
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
2.1
2.3
2.4
2.5
43
46
49
53
4075
5065
6110
7565
2135
2585
2985
3520
4.5
4.5
0.6
0.6
2.6
2.7
57
61
9480
-
4350
5015
29
8.7 / 15kV XLPE INSULATED THREE CORE CABLES
8
7
6
5
4
3
2
1
DESCRIPTION
Stranded circular compacted copper or aluminium conductors, XLPE insulated, copper tape screened, three cores assembled
together with non-hygroscopic polypropylene fillers, covered with extruded bedding, armoured or unarmoured and PVC
sheathed. Cables comply with IEC 60502. (Refer to tables 6.23 and 6.24)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2.
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper tapes 0.10 mm thickness
6. Bedding
Taped bedding or extruded PVC bedding.
7. Armour
Galvanized steel wires/tapes applied helically over the PVC bedding.
8. Outer sheath
PVC types ST2 to IEC 60502 colour black.
Colour for core identification
Red, yellow and blue narrow tapes applied between non metallic and metallic part of insulation screen.
APPLICATIONS
These cables are generally suitable for direct burial or for installation on trays or ducts. Where there is a risk of mechanical
damage, armoured cables should be used.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
30
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.23 8.7 / 15(17.5)kV THREE-CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
25
35
50
70
Screening
Nominal
thickness of
sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
6.0
7.1
8.3
9.9
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
95
120
150
185
11.7
13.2
14.6
16.4
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
240
300
400
500
18.8
21.0
23.8
26.7
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.4
2.5
2.6
2.7
45.0
47.0
51.0
54.0
2180
2560
3100
3910
1700
1890
2190
2590
0.1
0.1
0.1
0.1
2.8
2.9
3.0
3.1
59.0
62.0
65.0
70.0
4890
5790
6740
8020
3060
3480
3900
4460
0.1
0.1
0.1
0.1
3.3
3.5
3.7
3.9
75.0
81.0
87.0
94.0
10100
12100
14900
18300
5370
6170
7310
8730
Table 6.24 8.7 / 15(17.5)kV THREE-CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED ARMOURED CABLES
Nominal
crosssectional
area of
conductor
Screening
Nominal
diameter of
conductor
Nominal
thickness
of
insulation
Nominal
thickness of
SC layer
Approx.
thickness
of Cu
tape
mm2
mm
mm
mm
25
35
50
70
6.0
7.1
8.3
9.9
4.5
4.5
4.5
4.5
95
120
150
185
11.7
13.2
14.6
16.4
240
300
400
500
18.8
21.0
23.8
26.7
Approx. weight of cable
Nominal
diameter
of steel
wire
Nominal
thickness
of sheath
Approx.
overall
diameter
Copper
Aluminium
mm
mm
mm
mm
kg/ km
kg/ km
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.5
2.5
2.5
2.5
2.6
2.7
2.9
3.0
55
58
61
65
5035
5620
6340
7410
4550
4945
5425
6090
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.5
2.5
3.15
3.15
3.1
3.2
3.4
3.5
69
73
78
82
8660
9780
11880
13510
6830
7465
9040
9945
4.5
4.5
4.5
4.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
3.15
3.15
3.15
3.15
3.6
3.8
4.1
4.3
88
94
104
108
16010
18700
22810
26100
11280
12765
15220
16530
31
12 / 20kV XLPE INSULATED SINGLE CORE CABLES
6
5
4
3
2
1
DESCRIPTION
Circular stranded compacted copper or aluminium conductor, XLPE insulated, with copper wire or copper tape screen and
PVC outer sheath. Complies with IEC 60502 (Refer to tables 6.25 and 6.26)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper wire or copper tape screen
6. Outer Sheath
PVC type ST2 to IEC 60502 colour black
APPLICATIONS
For installation on trays, ducts or direct burial.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
32
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.25 12 / 20(24)kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
35
50
70
95
Screening
Nominal
thickness of
sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
7.1
8.3
9.9
11.7
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
120
150
185
240
13.2
14.6
16.4
18.8
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
300
400
500
630
21.0
23.8
26.7
30.5
5.5
5.5
5.5
5.5
800
1000
34.3
37.6
5.5
5.5
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
1.7
1.8
1.8
1.9
26.0
27.0
29.0
31.0
935
1090
1340
1655
715
790
910
1055
0.1
0.1
0.1
0.1
1.9
2.0
2.0
2.1
32.0
34.0
36.0
38.0
1925
2270
2665
3280
1170
1340
1500
1735
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.2
2.3
2.4
2.5
41.0
44.0
48.0
53.0
3915
4775
5930
7480
1975
2295
2805
3435
0.6
0.6
0.1
0.1
2.6
2.8
55.4
59.4
9195
-
4065
4770
Table 6.26 12 / 20(24)kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor/
screen
Screening
Approx. weight of cable
Nominal
diameter of
conductor
Nominal
thickness of
insulation
Thickness of extruded
SC layer
Nominal
thickness
of sheath
Approx.
overall
diameter
Copper
Aluminium
mm2
mm
mm
mm
mm
mm
kg/ km
kg/ km
35 / 16
50 / 16
70 / 16
95 / 16
7.1
8.3
9.9
11.7
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
1.8
1.8
1.9
1.9
30
31
33
35
1100
1250
1510
1810
880
950
1080
1210
120 / 16
150 / 25
185 / 25
240 / 25
13.2
14.6
16.4
18.8
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
2.0
2.0
2.1
2.1
36
38
40
43
2105
2490
2905
3560
1350
1560
1740
2015
300 / 25
400 / 35
500 / 35
630 / 35
21.0
23.8
26.7
30.5
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
2.2
2.3
2.4
2.5
45
48
51
55
4230
5225
6285
7765
2290
2745
3160
3720
800 / 50
1000 / 50
34.3
37.6
5.5
5.5
0.6
0.6
2.7
2.8
59
63
9650
-
4520
5225
33
12 / 20kV XLPE INSULATED THREE CORE CABLES
8
7
6
5
4
3
2
1
DESCRIPTION
Circular stranded compacted copper or aluminium conductors, XLPE insulated, copper tape screened, three cores asembled
together with non-hygroscopic polypropylene fillers, covered with extruded bedding, armoured or unarmoured and PVC
sheathed. Cables comply with IEC 60502. (Refer to tables 6.27 and 6.28)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper tapes 0.10 mm thickness
6. Bedding
Taped bedding or extruded PVC bedding.
7. Armour
Galvanized steel wires/tapes applied helically over the PVC bedding.
8. Outer sheath
PVC types ST2 to IEC 60502 colour black.
Colour for core identification
Red, yellow and blue narrow tapes applied between non-metallic and meatallic part of insulation screen.
APPLICATIONS
These cables are generally suitable for direct burial or for installation on trays of ducts. Where there is a risk of mechanical
damage, armoured cables should be used.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
34
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.27 12 / 20(24)kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNAROMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
35
50
70
95
Screening
Nominal
thickness of
sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness
of Cu tape
mm
mm
mm
mm
7.1
8.3
9.9
11.7
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
120
150
185
240
13.2
14.6
16.4
18.8
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
300
400
500
21.0
23.8
26.7
5.5
5.5
5.5
0.6
0.6
0.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.6
2.7
2.8
3.0
53.0
56.0
60.0
64.0
3165
3640
4545
5565
2490
2725
3225
3735
0.1
0.1
0.1
0.1
3.1
3.2
3.3
3.5
68.0
71.0
75.0
80.0
6560
7570
8915
11050
4245
4725
5350
6320
0.1
0.1
0.1
3.6
3.9
4.1
87.0
93.0
101.0
13295
16235
19200
7360
8645
9635
Table 6.28 12 / 20(24)kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED AROMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness
of
insulation
Screening
Nominal
thickness of
SC layer
mm2
mm
mm
35
50
70
95
7.1
8.3
9.9
11.7
120
150
185
240
300
400
500
Approx.
thickness
of Cu tape
Nominal
diameter
of steel
wire
Nominal
thickness
of sheath
Approx.
overall
diameter
mm
mm
mm
mm
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.5
2.5
2.5
2.5
13.2
14.6
16.4
18.8
5.5
5.5
5.5
5.5
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
21.0
23.8
26.7
5.5
5.5
5.5
0.6
0.6
0.6
0.1
0.1
0.1
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.9
3.0
3.1
3.2
63
66
70
74
6275
7000
8050
9355
5600
6085
6730
7525
2.5
3.15
3.15
3.15
3.4
3.5
3.6
3.8
79
83
87
93
11400
12635
14345
16920
9090
9790
10780
12190
3.15
3.15
3.15
4.0
4.2
4.4
99
105
112
19655
23060
27060
13720
15470
17490
35
18 / 30kV XLPE INSULATED SINGLRE CORE CABLES
6
5
4
3
2
1
DESCRIPTION
Circular stranded compacted copper or aluminium conductor, XLPE insulated, with copper wire or copper tape screen and
PVC outer sheath. Complies with IEC 60502 (Refer to tables 6.29 and 6.30)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2.
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper wire or copper tape screen
6. Outer Sheath
PVC type ST2 to IEC 60502 colour black
APPLICATIONS
For installation on trays, ducts or direct burial.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
36
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.29 18 / 30(36)kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
50
70
95
Screening
Nominal
thickness
of sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness of
Cu tape
mm
mm
mm
mm
8.3
9.9
11.7
8.0
8.0
8.0
0.6
0.6
0.6
0.1
0.1
0.1
120
150
185
13.2
14.6
16.4
8.0
8.0
8.0
0.6
0.6
0.6
240
300
400
18.8
21.0
23.8
8.0
8.0
8.0
500
630
800
1000
26.7
30.5
34.3
37.6
8.0
8.0
8.0
8.0
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.0
2.0
2.1
33.0
35.0
36.0
1380
1650
1995
1080
1230
1395
0.1
0.1
0.1
2.1
2.2
2.2
38.0
40.0
41.0
2285
2620
3035
1530
1690
1870
0.6
0.6
0.6
0.1
0.1
0.1
2.3
2.4
2.5
44.0
47.0
50.0
3670
4530
5300
2125
2590
2820
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
2.6
2.7
2.8
3.0
53.0
59.0
60.8
65.0
6455
8005
9710
-
3330
3960
4580
5335
Table 6.30 18 / 30(36)kV SINGLE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNARMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness
of
insulation
mm2
mm
50 / 16
70 / 16
95 / 16
Screening
Thickness of extruded
SC layer
Nominal
thickness
of sheath
Approx.
overall
diameter
mm
mm
mm
8.3
9.9
11.7
8.0
8.0
8.0
0.6
0.6
0.6
120 / 16
150 / 25
185 / 25
13.2
14.6
16.4
8.0
8.0
8.0
240 / 25
300 / 25
400 / 35
18.8
21.0
23.8
500 / 35
630 / 35
800 / 50
1000 / 50
26.7
30.5
34.3
37.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
2.0
2.0
2.1
36
38
40
1530
1780
2120
1230
1350
1520
0.6
0.6
0.6
2.1
2.2
2.2
41
43
45
2410
2820
3255
1655
1890
2070
8.0
8.0
8.0
0.6
0.6
0.6
2.3
2.4
2.5
48
50
53
3910
4620
5645
2365
2690
3165
8.0
8.0
8.0
8.0
0.6
0.6
0.6
0.6
2.6
2.7
2.9
3.0
57
60
65
69
6730
8210
10195
-
3605
4165
5065
5785
37
18 / 30Kv XLPE INSULATED THREE CORE CABLES
8
7
6
5
4
3
2
1
DESCRIPTION
Stranded circular compacted copper or aluminium conductors, XLPE insulated, copper tape screened, three cores assembled
together with non-hygroscopic polyprpylene fillers, covered with extruded bedding, armoured or unarmoured and PVC
sheathed. Cables comply with IEC 60502. ( Refer to tables 6.31 and 6.32)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2
2. Conductor Screen
Extruded semiconductive compound
3. Insulation
XLPE (cross-linked polyethylene) rated 90°C
Insulation screen
4. Non-metallic part
Extruded layer of semiconductive material
Insulation screen
5. Metallic part
Copper tapes 0.10 mm thickness
6. Bedding
Taped bedding or extruded PVC bedding.
7. Armour
Galvanized steel wires/tapes applied helically over the PVC bedding.
8. Outer sheath
PVC types ST2 to IEC 60502 colour black.
Colour for core identification
Red, yellow and blue narrow tapes applied between non-metallic and meatallic part of insulation screen.
APPLICATIONS
These cables are generally suitable for direct burial or for installation on trays or ducts. Where there is a risk of mechanical
damage, armoured cables should be used.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
38
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.31 18 / 30(36)kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED UNAROMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
50
70
95
Screening
Nominal
thickness of
sheath
Approx.
overall
diameter
Nominal
thickness of
SC layer
Approx.
thickness
of Cu tape
mm
mm
mm
mm
8.9
9.9
11.7
8.0
8.0
8.0
0.6
0.6
0.6
0.1
0.1
0.1
120
150
185
13.2
14.6
16.4
8.0
8.0
8.0
0.6
0.6
0.6
240
300
400
18.8
21.0
23.8
8.0
8.0
8.0
0.6
0.6
0.6
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
3.1
3.2
3.3
67.0
71.0
75.0
4785
5690
6775
3870
4370
4945
0.1
0.1
0.1
3.5
3.6
3.7
79.0
82.0
86.0
7815
8880
10290
5500
6040
6725
0.1
0.1
0.1
3.8
4.0
4.2
92.0
98.0
100.0
12475
14850
17895
7745
8920
10305
Table 6.32 18 / 30 (36)kV THREE CORE XLPE INSULATED WITH
COPPER TAPE SCREENED AND PVC SHEATHED AROMOURED CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness
of
insulation
mm2
mm
50
70
95
Screening
Approx. weight of
cable
Nominal
diameter
of steel
wire
Nominal
thickness
of sheath
Approx.
overall
diameter
Copper
Aluminium
Nominal
thickness of
SC layer
Approx.
thickness
of Cu tape
mm
mm
mm
mm
mm
mm
kg/ km
kg/ km
8.3
9.9
11.7
8.0
8.0
8.0
0.6
0.6
0.6
0.1
0.1
0.1
3.15
3.15
3.15
3.4
3.6
3.7
79
83
88
9695
10920
12255
8780
9600
10425
120
150
185
13.2
14.6
16.4
8.0
8.0
8.0
0.6
0.6
0.6
0.1
0.1
0.1
3.15
3.15
3.15
3.8
3.9
4.0
91
94
99
13540
14880
16610
11225
12040
13045
240
300
400
500
18.8
21.0
23.8
26.7
8.0
8.0
8.0
8.0
0.6
0.6
0.6
0.6
0.1
0.1
0.1
0.1
3.15
3.15
3.15
3.15
4.2
4.4
4.6
4.8
104
111
118
124
19230
22130
25960
29820
14500
16195
18370
20250
39
76 / 132kV INSULATED SINGLE CORE CABLES
7
6
5
4
3
2
1
DESCRIPTION
Circular stranded compacted copper or aluminium conductor, XLPE insulated, with copper wire screen and PE outer sheath.
Complies with Tenaga Nasional Berhad (TNB) Specification. (Refer to table 6.33)
CONSTRUCTION
1. Conductor
Plain circular compacted copper or aluminium conductor to IEC 228 class 2
2. Conductor Screen
Extruded semi-conductive thermo-setting compound
3. Insulation
Extruded superclean XLPE (cross-linked polyethylene)
4. Insulation screen
Extruded semi-conductive cross-linked polyethylene compound. It is firmly bonded to the insulation by virtue of the
simultaneous cross linking of insulation
The conductor screen, insulation and insulation screen are extruded by simultaneous triple extrusion process.
5. Metallic screen
Concentric round uncoated copper wires applied helically and shall be capable of carrying an earth-fault current of 25kA for 3
seconds
6. Radial water barrier
Laminated Aluminium Tape applied longitudinally or lead extruded
7. Outer sheath
Extruded black PE containing an effective termite repellant
APPLICATIONS
For installationon trays, ducts of direct burial.
NOTE : Cables complying with BS 6622 and customer’s specification are available upon request. Modifications which serve to improve our products will be
implemented without notice.
40
* Metallic sheath (Lead alloy ‘E’) and/or moisture barrier sheath (Laminated Aluminium foil) available upon request.
CONSTRUCTION DATA
Table 6.33 76 / 132kV SINGLE CORE XLPE INSULATED WITH
COPPER WIRE SCREENED AND PE SHEATHED POWER CABLES
Nominal
crosssectional
area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
mm2
mm
300 / 300
400 / 300
500 / 300
630 / 300
800 / 300
1000 / 300
Screening
Thickness of extruded
SC layer
Nominal
thickness of
sheath
Approx.
overall
diameter
mm
mm
mm
20.9
23.6
26.5
20.0
20.0
20.0
1.3
1.3
1.3
30.2
35.6
39.0
20.0
20.0
20.0
1.3
1.3
1.3
Approx. weight of cable
Copper
Aluminium
mm
kg/ km
kg/ km
4.0
4.0
4.0
89
92
94
10655
11700
12890
8730
9220
9760
4.0
4.0
4.0
99
102
107
14560
16480
18770
10515
11345
12280
41
Milliken Conductor
The conductor of this cable is achieved by using a shaped segmental conductor design. Our design consists of five stranded
sector shape conductor segments with one central circular conductors separated by semi-conducting tape used to avoid
“Skin Effect” for an improve current carrying capacity. The conductor also features water-sealed properties which prevent
moisture ingress into and along the conductor for improve cable reliability and durability.
CONSTRUCTION
Conductor
The conductor of this cable is achieved by using a shaped segmental conductor design. It consists of five stranded sector
shape conductor segments with one central circular conductors.
Conductor screen
Extruded semi-conductive thermo-setting compound
Insulation
Extruded superclean cross-linked polyethylene (XLPE)
Insulation screen
Extruded semi-conductive cross-linked polyethylene compound. It is firmly bobded to the insulation by virtue of the
simultaneous cross-linking of insulation
Metallic screen
Concentric round uncoated copper wires applied helically and shall be capable of carrying an earth-fault current of 25kA for 3
second.
Radial water barrier
Laminated aluminium tape applied longitudinally or lead extruded
Outersheath
Extruded black PE containing an effective termite repellent
Graphite coating is provided to cater for on-site test.
42
CONSTRUCTION DATA
76 / 132 kV MILLIKEN CONDUCTOR XLPE INSULATED WITH COPPER WIRE SCREENED
AND PE SHEATHED POWER CABLES
Nominal crosssectional area of
conductor
Nominal
diameter of
conductor
Nominal
thickness of
insulation
Nominal area
of Cu. Wire
Screening
Nominal
thickness of
sheath
Nominal overall
diameter
Nominal weight of
cable
mm2
mm
mm
mm2
mm
mm
kg/ km
1200
1600
43.4
50.0
20.0
20.0
300
300
4.0
4.0
110.8
117.0
21149.0
25510.6
Nominal crosssectional area of
conductor
Conductor
resistance at 20°C
Reactance
Capacitance
Current carrying capacity *
mm2
ohm / km
ohm / km
microF/km
kA
1200
1600
0.0151
0.0113
0.170
0.108
0.25
0.27
min. 1.23
min. 1.23
or 282 MVA
or 282 MVA
* The current carrying capacity are based on the following condition
Maximum conductor temperature: 90° C
Maximum ambient temperature: Air 37.2°C
: Ground 30°C
Ground thermal resistivity: 1.2ºC m/W
Laying depth: 1.2m
43
TECHNICAL DATA
CURRENT CARRYING CAPACITY
The Current Carrying Capacity given in the following tables are based on the assumptions shown below:
(1) Max. Conductor Temperature............................................................................................................................... 90°C
(2) Max. Ambient Temperature:
In Air...................................................................................................... 25°C
In Ground............................................................................................... 15°C
(3) Ground Thermal Resistivity ........................................................................................................................1.2°C m/W
(4) Laying Depth: For Voltage up to 1kV............................................................................ 0.5m
For Higher Voltages above 1kV............................................................. 0.8m
(5) Spacing Between Cables Laid:
In Flat Formation....................................... 2 times of cable overall diameter
In Trefoil.......................................................................... with cable touching
(6) For other conditions, the rating factors included should be applied.
TABLE 7.1 CURRENT RATINGS FOR 0.6 / 1kV ARMOURED XLPE CABLES
Conductor
size (mm2)
In Air
Single-core
Trefoil (A)
a
Flat (A)
In ground
2-core (A)
3- or 4core (AA)
Single-core
a
Trefoil (A)
Flat (A)
2-core (A)
3- or 4core (AA)
Copper Conductors
16
25
35
50
70
217
277
279
350
118
154
190
229
288
101
132
162
196
247
231
284
241
295
141
183
219
259
317
119
152
182
217
266
95
120
150
185
2400
340
395
454
522
615
425
488
543
610
700
355
411
469
541
639
305
353
404
465
549
340
386
431
485
558
350
395
485
482
545
381
433
185
547
632
319
363
406
458
529
300
400
500
630
800
700
800
905
1019
1107
775
834
910
986
1032
728
838
-
626
720
-
623
691
765
841
888
597
637
688
737
760
708
799
-
592
667
-
1000
1202
1098
-
-
942
797
-
-
Aluminium Conductors
44
16
25
35
50
70
162
208
209
264
90
114
141
169
213
76
100
122
147
186
177
218
185
227
108
138
165
196
240
91
116
139
165
203
95
120
150
185
240
255
295
340
392
464
322
370
417
473
550
263
-
229
266
305
352
417
260
296
331
374
433
270
306
339
380
435
288
-
244
278
311
353
409
300
532
619
-
478
486
483
-
461
Table 7.2 CURRENT RATINGS FOR 1.8 / 3kV ARMOURED XLPE CABLES
Conductor size
(mm2)
In Air
Single-core
Trefoil (A)
a
Flat (A)
In ground
3-core (A)
Single-core
a
Trefoil (A)
Flat (A)
3-core (A)
Copper Conductors
16
25
35
50
70
226
282
285
358
106
140
166
201
252
222
271
232
284
114
147
175
207
254
95
120
150
185
240
346
402
457
523
616
440
512
585
673
801
309
359
409
471
556
324
366
409
460
528
341
388
436
493
573
305
347
390
441
510
300
400
500
630
800
702
800
905
1019
1107
925
1081
1255
1461
1683
639
740
-
589
651
720
789
831
648
741
844
961
1085
576
653
-
1000
1202
1902
-
880
1203
-
Aluminium Conductors
a
16
25
35
50
70
169
212
214
268
80
105
125
151
190
170
208
178
217
87
113
134
158
194
95
120
150
185
240
259
302
343
394
465
328
382
434
501
595
233
270
307
355
420
248
282
315
355
410
260
297
332
377
438
233
266
298
338
392
300
533
686
484
460
495
444
Single-core cables with aluminium wire armour
45
Table 7.3 CURRENT RATINGS FOR
3.6 / 6kV TO 8.7 / 15kV ARMOURED XLPE CABLES
Conductor size
(mm2)
In Air
Single-corea
Trefoil (A)
Flat (A)
In ground
3-core (A)
Single-corea
Trefoil (A)
Flat (A)
3-core (A)
Copper Conductors
25 b
35 b
50 b
70
235
285
295
370
145
175
220
270
220
270
230
280
140
170
210
255
95
120
150
185
240
360
415
470
540
640
455
520
600
690
820
330
375
430
490
570
320
360
410
455
520
335
380
430
485
560
300
340
380
430
490
300
400
500
630
800
740
840
940
1110
1270
940
1100
1280
1500
1740
650
740
-
580
650
710
760
810
640
730
830
940
1070
540
600
1000
1400
1960
-
860
1180
-
-
Aluminium Conductors
25 b
35 b
50 b
70
180
225
230
290
115
140
170
210
170
210
175
215
115
135
160
195
95
120
150
185
240
260
320
365
425
500
350
410
465
530
640
250
295
330
385
450
250
280
315
355
405
260
295
330
375
440
230
265
300
335
380
300
400
500
630
800
580
670
790
910
1052
730
860
1010
1190
1400
510
590
-
455
510
570
640
769
495
570
650
750
-
435
490
-
Copper wire screened, unarmoured
b Not applicable to all voltages, see dimension tables for availability
a
46
Table 7.4 CURRENT RATINGS FOR
12 / 20kV TO 18 / 30Kv ARMOURED XLPE CABLES
Conductor size
(mm2)
In Air
Single-corea
Trefoil (A)
Flat (A)
In ground
3-core (A)
Single-corea
Trefoil (A)
Flat (A)
3-core (A)
Copper Conductors
35
50
70
95
120
245
300
360
425
295
365
450
520
180
225
275
330
380
220
270
320
360
230
280
335
380
170
210
255
295
335
150
185
240
300
400
485
550
650
740
850
590
670
800
920
1070
430
490
570
650
740
410
460
530
600
690
430
485
560
640
730
375
420
480
530
590
500
630
800
1000
980
1130
1290
1430
1250
1450
1690
1910
-
760
850
930
1010
830
950
1070
1190
-
Aluminium Conductors
a
35
50
70
95
120
190
235
280
330
230
285
345
400
145
175
215
260
300
170
210
250
280
175
215
260
295
135
160
195
230
260
150
185
240
300
400
375
430
510
580
680
455
520
620
710
840
335
390
460
520
600
320
360
415
475
550
330
375
440
495
570
290
330
380
425
480
500
630
800
1000
790
920
1070
1210
980
1080
1360
1560
-
610
690
780
860
650
750
860
970
-
Copper wire screened, unarmoured
47
Table 7.5 CURRENT RATINGS FOR
132 kV SINGLE CORE UNARMOURED XLPE CABLES
Conductor
size (mm²)
In air
Trefoil (A)
In ground
Flat (A)
Trefoil (A)
Flat (A)
Copper Conductors
300
400
645
735
695
810
495
555
570
651
500
630
850
975
945
1090
615
675
745
845
800
1000
110
1220
1260
1420
750
800
950
1030
Aluminium Conductors
48
300
400
485
560
540
635
400
455
445
510
500
630
650
745
745
870
510
570
590
675
800
1000
845
970
1015
1155
630
680
770
850
RATING FACTORS FOR CABLES IN AIR
TABLE 7.6 RATING FACTORS FOR AMBIENT AIR TEMPERATURE
Ambient air temperature
20°C
25°C
30°C
35°C
40°C
45°C
50°C
Rating Factors
1.05
1.00
0.95
0.91
0.86
0.80
0.75
RATING FACTORS CABLES IN GROUND
Table 7.7 RATING FACTORS FOR GROUND TEMPERATURE
Ground Temperature
10°C
15°C
20°C
25°C
30°C
35°C
40°C
45°C
Rating Factors
1.03
1.00
0.97
0.93
0.89
0.85
0.81
0.77
Table 7.8 RATING FACTORS FOR THERMAL RESISTIVITY OF GROUND
Thermal Resistivity (°Cm / W)
Conductor size (mm²)
0.8
0.9
1.0
1.5
2.0
2.5
3.0
1.16
1.11
1.07
0.91
0.81
0.73
0.67
Single - core cables
Up to 150
From 185 to 400
1.17
1.12
1.07
0.90
0.80
0.72
0.66
From 500 to 1200
1.18
1.13
1.08
0.90
0.79
0.71
0.65
1.09
1.06
1.04
0.95
0.86
0.79
0.74
From 25 to 150
1.14
1.10
1.07
0.93
0.84
0.76
0.70
From 185 to 400
1.16
1.11
1.07
0.92
0.82
0.74
0.68
Multicore cables
Up to 16
Table 7.9 RATING FACTORS FOR DEPTH OF LAYING
Depth of laying (m)
0.6 / 1 kV cables
1.8 / 3 kV to 18 / 30 kV cables
Up to 50mm2
70 mm to 300mm2
above 300mm2
up to 300mm2
above 300mm2
0.5
0.6
0.8
1.00
0.99
0.97
1.00
0.98
0.96
1.00
0.97
0.94
1.00
1.00
1.0
1.3
1.5
0.95
0.94
0.93
0.94
0.92
0.91
0.92
0.90
0.89
0.98
0.96
0.95
0.97
0.95
0.94
1.8
2.0
2.5
3.0 or more
0.92
0.91
0.90
0.89
0.89
0.88
0.87
0.86
0.87
0.86
0.85
0.83
0.94
0.92
0.91
0.90
0.92
0.90
0.89
0.88
49
Table 7.10 GROUP RATING FACTORS FOR CIRCUITS OF THREE SINGLE CORE CABLES, IN TREFOIL
AND LAID FLAT TOUCHING, HORIZONTAL FORMATION
Cable Voltage
(kV)
Number of
circuits
Spacing of circuits (between centres of cable groups)
Touching
0.15m*
0.3m
0.45m
0.6m
0.80
0.68
0.63
0.58
0.56
0.82
0.72
0.67
0.63
0.60
0.88
0.79
0.75
0.72
0.70
0.90
0.83
0.81
0.78
0.77
0.93
0.87
0.85
0.83
0.82
0.87
0.66
0.6
0.55
0.52
0.80
0.69
0.63
0.58
0.55
0.81
0.71
0.65
0.61
0.58
0.85
0.76
0.72
0.68
0.66
0.88
0.80
0.76
0.73
0.72
0.90
0.83
0.80
0.77
0.76
0.79
0.67
0.62
0.57
0.54
0.81
0.70
0.65
0.60
0.57
0.81
0.71
0.65
0.60
0.57
0.85
0.76
0.72
0.68
0.66
0.88
0.80
0.76
0.73
0.72
0.90
0.83
0.80
0.76
0.76
Trefoil
Laid Flat
0.6 / 1
2
3
4
5
6
0.77
0.65
0.59
0.55
0.52
1.8 / 3 to
12 / 20
2
3
4
5
6
18 / 30
2
3
4
5
6
* This spacing will not be possible for some of the larger diameter cables
Table 7.11 GROUP RATING FACTORS FOR
MULTICORE CABLES IN HORIZONTAL FORMATION
50
Spacing of circuits (between centres of cable groups)
Cable Voltage
(kV)
Number of
Cables in group
Touching
0.15m
0.3m
0.45m
0.6m
0.6 / 1
2
3
4
5
6
0.81
0.70
0.63
0.58
0.55
0.87
0.78
0.74
0.70
0.67
0.91
0.84
0.81
0.78
0.76
0.93
0.87
0.86
0.83
0.82
0.94
0.90
0.89
0.87
0.86
1.8 / 3 to
]12 / 20
2
3
4
5
6
0.80
0.69
0.63
0.57
0.55
0.85
0.75
0.70
0.66
0.63
0.89
0.80
0.77
0.73
0.71
0.90
0.84
0.80
0.78
0.76
0.92
0.86
0.84
0.81
0.80
18 / 30
2
3
4
5
6
0.80
0.70
0.64
0.59
0.56
0.83
0.73
0.68
0.63
0.60
0.87
0.78
0.74
0.70
0.68
0.89
0.82
0.78
0.75
0.74
0.91
0.85
0.82
0.79
0.78
TABLE 7.12 METRIC CONDUCTOR SIZES
AND RESISTANCE (20°C) FOR FIXED WIRING
Maximum d.c. resistance
Conductor
size (mm2)
Maximum d.c. resistance
Plain copper
(ohm / km)
Metal coated
copper (ohm
/ km)
Aluminium*
(ohm / km)
0.5
0.75
1
1.5
2.5
36.0
24.5
18.1
12.1
7.4
36.7
24.8
18.2
12.2
7.56
-
4
6
10
16
25
4.61
3.08
1.83
1.15
0.727
4.70
3.11
1.84
1.16
0.734
7.41
4.61
3.08
1.91
1.20
35
50
70
95
120
0.524
0.387
0.268
0.193
0.153
0.529
0.391
0.270
0.195
0.154
0.868
0.641
0.443
0.320
0.253
150
185
240
300
400
0.124
0.0991
0.0754
0.0601
0.0470
0.126
0.100
0.0762
0.0607
0.0475
0.206
0.164
0.125
0.100
0.0778
Conductor
size (mm2)
Plain
copper
(ohm / km)
Metal coated
copper (ohm
/ km)
Aluminium*
(ohm / km)
500
630
800
1000
1200
0.0366
0.0283
0.0221
0.0176
0.0151
0.0369
0.0386
0.0224
0.0177
0.0151
0.0605
0.0469
0.0367
0.0291
0.0247
1400 +
1600 +
1800 ‡
2000 ‡
0.0129
0.0113
0.0101
0.0090
0.0129
0.0113
0.0101
0.0090
0.0212
0.0186
0.0165
0.0149
1150 ‡
1130 ‡
0.0156
0.0138
-
0.0258
0.0228
380
480
600
740
960
1200
-
-
0.0800
0.0633
0.0515
0.0410
0.0313
0.0250
*
+
‡
includes metal-coared and metal clad
non prefered sizes in IEC 228
sizes used for O.F. cables (not in IEC 228)
solid sectoral conductors (not in IEC 228 but standard for British
practice, BS 6360)
Except where stated, the data is in accordance with IEC 228 and
British Standards.
51
TABLE 7.13 ELECTRICAL CHARACTERISTICS
0.6 / 1Kv ARMOURED XLPE CABLES
Single-core cables*
Conductor
Size (mm2)
52
A.C. resistance at 90°C
Multicore cables
Reactance (50Hz)
A.C. resistance at 90°C
Copper
(ohm / km)
Aluminium
(ohm / km)
Trefoil
(ohm / km )
Flat #
(ohm / km )
Copper (ohm
/ km)
Aluminium
(ohm/km)
Reactance
(50Hz) (ohm
/ km)
16
-
-
-
-
1.47
2.45
0.080
25
-
-
-
-
0.927
1.54
0.079
35
-
-
-
-
0.668
1.11
0.077
50
0.494
0.822
0.106
0.145
0.494
0.822
0.076
70
0.342
0.568
0.103
0.162
0.342
0.568
0.075
95
0.247
0.411
0.098
0.157
0.247
0.411
0.073
120
0.197
0.325
0.096
0.155
0.197
0.325
0.073
150
0.160
0.265
0.097
0.156
0.160
0.265
0.073
185
0.128
0.211
0.096
0.155
0.128
0.211
0.073
240
0.0989
0.162
0.092
0.151
0.0989
0.162
0.073
300
0.0802
0.130
0.090
0.149
0.0802
0.130
0.072
400
0.0640
-
0.090
0.148
0.0640
-
-
500
0.0515
-
0.089
0.146
0.0515
-
-
630
0.4200
-
0.086
0.144
0.0420
-
-
800
0.0363
-
0.086
0.144
0.0363
-
-
1000
0.0316
-
0.084
0.142
0.0316
-
-
Table 7.14 ELECTRICAL CHARACTERISTICS
1.8 / 3kV ARMOURED XLPE CABLES
Single-core cables*
Conductor
size (mm2)
A.C. resistance
at 90°C
3-core cables
Reactance (50Hz)
Copper
(ohm / km)
Aluminium
(ohm / km)
Trefoil
(ohm /
km )
Flat #
(ohm /
km )
16
-
-
-
-
25
-
-
-
35
-
-
50
0.494
70
0.342
95
A.C. resistance at 90°C
Capacitance
(µF / km )
Reactance
(50Hz)
(ohm / km)
Capacitance
(µF / km )
Copper
(ohm / km)
Aluminium
(ohm/km)
-
1.47
2.42
0.104
0.18
-
-
0.927
1.54
0.095
0.22
-
-
-
0.668
1.11
0.092
0.25
0.822
0.116
0.172
0.31
0.494
0.822
0.088
0.27
0.568
0.110
0.165
0.36
0.342
0.568
0.084
0.31
0.247
0.411
0.104
0.160
0.42
0.247
0.411
0.081
0.35
120
0.195
0.325
0.104
0.159
0.45
0.195
0.325
0.079
0.38
150
0.160
0.265
0.100
0.156
0.49
0.160
0.265
0.077
0.42
185
0.128
0.211
0.098
0.154
0.54
0.128
0.211
0.076
0.46
240
0.098
0.162
0.094
0.150
0.63
0.098
0.162
0.074
0.51
300
0.080
0.130
0.091
0.147
0.70
0.080
0.130
0.073
0.57
400
0.064
-
0.090
0.147
0.77
-
-
-
-
500
0.051
-
0.089
0.145
0.80
-
-
-
-
630
0.042
-
0.086
0.143
0.84
-
-
-
-
* Aluminium wire armoured
# Twice cable diameter spacing between centres
53
Table 7.15 ELECTRICAL CHARACTERISTICS
3.6 / 6kV ARMOURED XLPE CABLES
Single-core cables*
Conductor
size (mm2)
A.C. resistance
at 90°C
Copper
(ohm / km)
3-core cables
Reactance (50Hz)
Aluminium
Trefoil
(ohm / km) (ohm / km )
Flat #
(ohm /
km )
A.C. resistance at 90°C
Capacitance
(µF / km )
Copper
(ohm / km)
Aluminium
(ohm/km)
Reactance
Capacitance
(50Hz)
(µF / km )
(ohm / km)
3.6 / 6 kV
16
-
-
-
-
-
1.47
2.42
0.104
0.18
25
-
-
-
-
-
0.927
1.54
0.095
0.22
35
-
-
-
-
-
0.668
1.11
0.092
0.25
50
0.494
0.822
0.116
0.172
0.31
0.494
0.822
0.088
0.27
70
0.342
0.568
0.110
0.165
0.36
0.342
0.568
0.084
0.31
95
0.247
0.411
0.104
0.160
0.42
0.247
0.411
0.081
0.35
120
0.195
0.325
0.104
0.159
0.45
0.195
0.325
0.079
0.38
150
0.160
0.265
0.100
0.156
0.49
0.160
0.265
0.077
0.42
185
0.128
0.211
0.098
0.154
0.54
0.128
0.211
0.076
0.46
240
0.098
0.162
0.094
0.150
0.63
0.098
0.162
0.074
0.51
300
0.080
0.130
0.091
0.147
0.70
0.080
0.130
0.073
0.57
400
0.064
-
0.090
0.147
0.77
-
-
-
-
500
0.051
-
0.089
0.145
0.80
-
-
-
-
630
0.042
-
0.086
0.143
0.84
-
-
-
-
6 / 10kV
16
-
-
-
-
-
1.47
2.45
0.134
0.21
25
-
-
-
-
-
0.927
1.54
0.124
0.24
35
-
-
-
-
-
0.668
1.11
0.116
0.26
50
0.493
0.821
0.127
0.185
0.27
0.493
0.822
0.111
0.28
70
0.342
0.569
0.120
0.177
0.31
0.342
0.568
0.106
0.32
95
0.247
0.410
0.114
0.171
0.34
0.247
0.410
0.100
0.36
120
0.196
0.325
0.109
0.166
0.37
0.196
0.325
0.097
0.39
150
0.159
0.265
0.106
0.163
0.40
0.159
0.265
0.094
0.42
185
0.128
0.211
0.103
0.160
0.44
0.128
0.211
0.092
0.46
240
0.098
0.162
0.099
0.156
0.49
0.0984
0.161
0.089
0.51
300
0.0790
0.130
0.096
0.153
0.52
0.0797
0.130
0.086
0.56
400
0.0632
0.102
0.093
0.150
0.59
0.0639
0.102
0.083
0.62
500
0.0510
0.0804
0.090
0.147
0.66
-
-
-
-
630
0.0416
0.0639
0.087
0.145
0.74
-
-
-
-
* Copper wire screened, unarmoured
# Twice cable diameter spacing between centres
54
Table 7.16 ELECTRICAL CHARACTERISTICS
8.7 / 15kV AND 12 / 20kV ARMOURED XLPE CABLES
Single-core cables*
Conductor
size (mm2)
A.C. resistance
at 90°C
Copper
(ohm / km)
Aluminium
(ohm / km)
3-core cables
Reactance (50Hz)
Trefoil
(ohm /
km )
A.C. resistance at 90°C
Capacitance
Flat # (ohm (µF / km )
/ km )
Copper
(ohm / km)
Reactance
(50Hz)
Aluminium (ohm / km)
(ohm/km)
Capacitance
(µF / km )
8.7 / 15kV
16
-
-
-
-
-
35
-
-
-
-
-
25
-
-
-
-
1.47
2.45
0.143
0.17
0.668
1.11
0.124
0.21
1.54
-
0.927
0.493
0.822
0.132
0.118
0.19
0.23
50
0.493
0.822
1.320
0.190
0.22
95
0.247
0.410
0.119
0.176
0.27
0.247
0.410
0.106
0.29
0.32
0.159
0.264
0.100
0.34
70
120
150
0.343
0.196
0.159
0.568
0.325
0.264
0.125
0.114
0.111
240
0.0979
0.161
0.211
0.107
300
0.0789
0.130
0.100
500
0.0507
0.802
0.093
185
400
630
0.128
0.0630
0.0414
0.102
0.0636
0.103
0.097
0.090
0.183
0.171
0.168
0.164
0.25
0.29
0.34
0.343
0.196
0.128
0.568
0.325
0.211
0.112
0.102
0.097
0.093
0.26
0.31
0.37
0.41
0.38
0.0982
0.161
0.156
0.42
0.0794
0.130
0.090
0.45
0.151
0.51
-
-
-
-
0.160
0.153
0.147
0.47
0.57
0.0636
-
0.102
-
0.087
-
0.50
-
12 / 20 kV
16
-
-
-
-
-
35
-
-
-
-
-
25
-
-
-
-
-
-
1.54
0.139
0.17
0.493
0.822
0.124
0.20
0.668
1.11
0.494
0.821
0.138
0.192
0.19
95
0.247
0.409
0.124
0.178
0.24
0.247
0.410
150
0.159
0.265
0.116
0.170
0.28
0.159
0.264
120
185
0.342
0.196
0.128
0.569
0.324
0.211
0.131
0.119
0.113
0.185
0.173
0.165
0.161
0.098
0.160
0.108
300
0.079
0.129
0.104
0.158
500
0.051
0.080
0.097
0.152
240
400
630
0.063
0.041
0.101
0.064
0.101
0.094
0.155
0.149
-
0.927
50
70
-
-
0.22
0.26
0.30
0.342
0.196
0.127
0.568
0.130
0.118
0.18
0.22
0.111
0.24
0.104
0.28
0.325
0.107
0.211
0.101
0.097
0.26
0.31
0.34
0.098
0.161
0.37
0.079
0.130
0.094
0.37
0.44
-
-
-
-
0.34
0.40
0.49
0.063
-
0.102
-
0.090
-
0.41
-
* Copper wire screened, unarmoured
# Twice cable diameter spacing between centres
55
Table 7.17 ELECTRICAL CHARACTERISTICS
18 / 30kV ARMOURED XLPE CABLES
Single-core cables*
Conductor
size (mm2)
A.C. resistance
at 90°C
3-core cables
Reactance (50Hz)
A.C. resistance at 90°C
Capacitance
Flat # (ohm (µF / km )
/ km )
Copper
(ohm / km)
Aluminium
(ohm / km)
Trefoil
(ohm /
km )
70
0.342
0.568
0.143
0.194
95
0.247
0.411
0.134
120
0.196
0.324
150
0.160
185
0.128
240
Reactance
Capacitance
(50Hz)
(µF / km )
(ohm / km)
Copper
(ohm / km)
Aluminium
(ohm/km)
0.16
0.342
0.568
0.135
0.16
0.189
0.18
0.247
0.411
0.127
0.18
0.129
0.184
0.19
0.196
0.325
0.122
0.19
0.264
0.125
0.178
0.21
0.159
0.265
0.118
0.21
0.211
0.121
0.174
0.22
0.128
0.211
0.114
0.22
0.0977
0.1600
0.116
0.169
0.250
0.0978
0.161
0.109
0.24
300
0.0785
0.1290
0.112
0.166
0.270
0.0788
0.130
0.105
0.26
400
0.0624
0.1010
0.107
0.162
0.290
-
-
-
-
500
0.0500
0.0797
0.104
0.158
0.320
-
-
-
-
630
0.0405
0.0630
0.099
0.155
0.350
-
-
-
-
800
0.0388
0.0509
0.095
0.151
0.400
-
-
-
-
TABLE 7.18 ELECTRICAL CHARACTERISTICS
132kV SINGLE CORE UNARMOURED XLPE CABLES
Single-core cables*
Conductor size
(mm2)
A.C. resistance at 90°C
Capacitance
(µF / km )
Copper
(ohm / km)
Aluminium
(ohm / km)
Trefoil
(ohm / km )
Flat #
(ohm / km )
300
0.078
0.129
0.147
0.198
0.130
400
0.060
0.099
0.140
0.190
0.140
500
0.049
0.078
0.132
0.182
0.160
630
0.039
0.062
0.127
0.173
0.170
800
0.032
0.050
0.121
0.165
0.195
1000
-
0.041
0.117
0.158
0.210
* Aluminium wire armoured
# Twice cable diameter spacing between centres
56
Reactance (50Hz)
Table 7.19 TEMPERATURE CORRECTION FACTORS
FOR CONDUCTOR RESISTANCE
Temperature of conductor (°C)
Factor to convert to 20°C
Reciprocal to convert from 20°C
5
1.064
0.940
7
1.055
0.948
6
8
9
1.059
1.050
1.046
0.944
0.952
0.956
10
1.042
0.960
12
1.033
0.968
11
13
14
1.037
1.029
1.025
0.964
0.972
0.976
15
1.020
0.980
17
1.012
0.988
16
18
19
1.016
1.008
1.004
0.984
0.992
0.996
20
1.000
1.000
22
0.992
1.008
21
23
24
0.996
0.988
0.984
1.004
1.012
1.016
25
0.980
1.020
27
0.973
1.028
26
28
29
0.977
0.969
0.965
1.024
1.032
1.036
30
0.962
1.040
40
0.926
1.080
35
45
50
0.943
0.909
0.893
1.060
1.100
1.120
55
0.877
1.140
65
0.847
1.180
60
70
75
0.862
0.833
0.820
1.160
1.200
1.220
80
0.806
1.240
90
0.781
1.280
85
0.794
1.260
The manufacturer reserves the right to modify or vary the construction or specification of any of the products at their discretion and without notice. The information contained herein is in line with the appropriate standards and sound eletrical
practice - it is believed to be reliable but as each application is unique, the manufacturer can accept no responsibility as
to the suitability of any product for a particular use, or for any error of omissions, unintentional or otherwise.
57
CALCULATION OF SHORT-CIRCUIT/EARTH FAULT
CURRENT CARRYING CAPACITY
Adiabatic method as per IEC 60949, IEC 60986 & IEC 61443
1. Calculation of adiabatic short-circuit current
I = ε x IAD
IAD = K S
Where,
IAD
=
ε
=
S
=
θ i
=
θf
=
t
=
K
=
β
=
58
θf + β
1n (
)
θi + β
t
short-circuit current calculated on an adiabatic basis (A)
factor to allow for heat loss into the adjacent components. For adiabatic calculations e = 1
nominal cross-sectional area (mm2)
Initial temperature (°C)
final temperature (°C)
duration of short circuit (s)
constant depending on the material of the current carrying component (As½/mm2), for Cu. 226
for Al. 148
for Steel 78
for Lead 42
reciprocal of temperature coefficient of resistance of the current carrying component at 0°C (K), for Cu. 234.5
for Al. 228
for Steel 202
for Lead 230
SHORT CIRCUIT CURRENT OF XLPE CABLES
(COPPER CONDUCTOR)
Curves are based on:
* Cables at maximum operating temperature of 90ºC at start of short-circuit.
* Final conductor temperature of 250ºC.
500
Conductor
Sizes (mm2)
400
300
200
150
90
100
80
70
1000
Maximum Permissible Short Circuit Current (kA)
60
50
800
40
630
500
30
400
20
300
240
185
10
9
7
120
6
95
5
70
4
50
3
35
2
25
5.0
4.0
16
3.0
2.0
1.0
0.9
10
0.8
0.7
0.6
0.5
0.4
0.3
0.2
6
1
0.1
10
8
150
Duration of Short Circuit (second) for Copper Conductor
59
SHORT CIRCUIT CURRENT OF XLPE CABLES
(ALUMINIUM CONDUCTOR)
Curves are based on:
* Cables at maximum operating temperature of 90ºC at start of short-circuit.
* Final conductor temperature of 250ºC.
300
Conductor
Sizes (mm2)
200
150
100
90
80
70
60
Maximum Permissible Short Circuit Current (kA)
50
1000
40
800
30
630
500
20
400
300
240
10
9
8
7
185
150
6
5
120
4
95
3
70
50
2
35
16
Duration of Short Circuit (second) for Aluminium Conductor
60
5.0
4.0
25
3.0
2.0
0.7
0.8
0.9
1.0
0.6
0.5
10
0.4
0.3
0.2
6
0.1
1
Leader Cable Industry Berhad
(26936-P)
Lot 1385, Tikam Batu Industrial Estate
08600 Sungai Petani, Kedah, Malaysia
Tel: 604-438 9988 Fax: 604-438 8497
www.leadercable.com.my
Selangor Sales Office
Unit 8.2, Level 8, Building A, Peremba Square
Saujana Resort, Seksyen U2
40150 Shah Alam, Selangor, Malaysia.
Tel: 603-7845 7788/6699
Fax: 603-7845 2258/8323