Milić Cables
Bare Conductors
Bare conductors are electrical conductors without insulation, usually made of copper or aluminum. They are used in power systems for the transmission and distribution of electricity, mainly in transmission lines. Due to the absence of insulation, they are suitable for outdoor use, where there is sufficient distance between the conductors and other objects to avoid the danger of a short circuit. Their main advantage is economy and simple maintenance, while their use is limited to situations where safety standards are met.
BARE CONDUCTORS
Al ropes for overhead lines (SRPS N.C1.302)
Construction: Al rope is a construction of seven or more aluminum wires (hard-drawn) according to SRPS N.C1.301 used in concentric layers. Adjacent layers have opposite directions of use, with the outer layer having a right-hand direction.
|
Nominal cross-section
|
Calculation section
|
Construction al
|
Rope diameter
|
Net weight (approximate)
|
Breaking strength
|
|---|---|---|---|---|---|
|
mm²
|
mm²
|
n x d
|
mm
|
kg/km
|
kN
|
|
16
|
15.89
|
7 x 1,79
|
5.1
|
44
|
2,90
|
|
25
|
24.25
|
7 x 2,10
|
6.3
|
67
|
4,25
|
|
35
|
34.36
|
7 x 2,50
|
7.5
|
94
|
5,85
|
|
50
|
49.48
|
7 x 3,00
|
9.0
|
135
|
8,10
|
|
50
|
48.35
|
19 x 1,80
|
9.0
|
133
|
8,60
|
|
70
|
65.81
|
19 x 2,10
|
10.5
|
181
|
11,50
|
|
95
|
93.27
|
19 x 2,50
|
12.5
|
256
|
15,95
|
|
120
|
116.99
|
19 x 2,80
|
14.0
|
322
|
19,10
|
BARE CONDUCTORS
Al/Če ropes for overhead lines (SRPS EN 50182, SRPS N.C1.351)
Construction: Al/Fe rope is a construction of seven or more wires wound in concentric layers. The rope core consists of one or more galvanized steel wires wound in concentric layers.
|
Area
|
Construction
|
Rope diameter (mm)
|
Weight
|
Design breaking force (kN)
|
Maximum resistance at 20°C (Ohm/km)
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Nominal cross-section
|
Calculation section
|
Construction Al
|
Number of layers
|
Construction Če
|
|
Weight Al (kg/km)
|
Weight Če (kg/km)
|
Net (kg/km)
|
|
|
|||
|
Al/Če ropes (mm²)
|
Section ratio (Al/Če)
|
Al (mm²)
|
Če (mm²)
|
Total (mm²)
|
|||||||||
|
16/2,5
|
6
|
15,3
|
2,5
|
17,8
|
6 x 1,80
|
1
|
1 x 1,80
|
5,4
|
41,8
|
19,9
|
61,6
|
5,80
|
1,8769
|
|
25/4
|
6
|
23,9
|
3,9
|
27,8
|
6 x 2,25
|
1
|
1 x 2,25
|
6,8
|
65,4
|
31,0
|
96,3
|
8,35
|
1,2012
|
|
35/6
|
6
|
34,4
|
5,7
|
40,1
|
6 x 2,70
|
1
|
1 x 2,70
|
8,1
|
94,2
|
44,7
|
138,7
|
12,37
|
0,8342
|
|
50/8
|
6
|
48,3
|
8,0
|
56,3
|
6 x 3,20
|
1
|
1 x 3,20
|
9,6
|
132,2
|
62,7
|
194,8
|
16,81
|
0,5939
|
|
70/12
|
6
|
69,9
|
11,4
|
81,3
|
26 x 1,85
|
2
|
7 x 1,44
|
11,7
|
194
|
90
|
282,2
|
26,27
|
0,4132
|
|
95/15
|
6
|
94,4
|
15,3
|
109,7
|
26 x 2,15
|
2
|
7 x 1,67
|
13,6
|
263
|
121
|
380,6
|
34,93
|
0,3060
|
|
150/25
|
6
|
148,9
|
24,2
|
173,1
|
26 x 2,70
|
2
|
7 x 2,10
|
17,1
|
402
|
189
|
600,8
|
53,67
|
0,1940
|
|
240/40
|
6
|
243,1
|
39,5
|
282,5
|
26 x 3,45
|
2
|
7 x 2,68
|
21,8
|
657
|
307,3
|
980,1
|
82,12
|
0,1188
|
|
360/57
|
6
|
360,2
|
56,3
|
416,5
|
26 x 4,20
|
2
|
7 x 3,20
|
26,4
|
973,6
|
438
|
1442
|
121,76
|
0,08014
|
|
490/65
|
7,7
|
490,3
|
63,6
|
553,9
|
54 x 3,40
|
3
|
7 x 3,40
|
30,6
|
1325,3
|
495
|
1852,9
|
150,81
|
0,0590
|
BARE CONDUCTORS
Galvanized steel ropes for overhead lines (SRPS N.C1.702)
Construction: Steel rope is a construction of seven or more steel wires according to SRPS N.C1.701 used in concentric layers. Adjacent layers have opposite directions of use, with the outer layer having a right-hand direction. It is used as lightning protection.
|
Nominal cross-section
|
Calculation section
|
Construction če
|
Rope diameter
|
Net weight (approximate)
|
Breaking strength
|
|---|---|---|---|---|---|
|
mm²
|
mm²
|
n x d
|
mm
|
kg/km
|
kN
|
|
16
|
15.89
|
7 x 1,70
|
5.1
|
126
|
18,75
|
|
25
|
24.25
|
7 x 2,10
|
6.3
|
192
|
30,80
|
|
35
|
34.36
|
7 x 2,50
|
7.5
|
272
|
43,75
|
|
50
|
49.48
|
7 x 3,00
|
9.0
|
391
|
63,00
|
|
50
|
48.35
|
19 x 1,80
|
9.0
|
384
|
61,55
|
|
70
|
65.81
|
19 x 2,10
|
10.5
|
523
|
83,80
|
|
95
|
93.27
|
19 x 2,50
|
12.5
|
741
|
118,75
|
|
120
|
116.99
|
19 x 2,80
|
14.0
|
929
|
148,95
|
BARE CONDUCTORS
Cu ropes for overhead lines (DIN 48 201 Teil 1)
Construction: Cu rope is a construction of seven or more copper wires (soft-drawn or hard-drawn) according to DIN48 200 taught in concentric layers.
|
Nominal cross-section
|
Calculation section
|
Construction Cu
|
Rope diameter
|
Net weight (approximate)
|
Breaking strength
|
|---|---|---|---|---|---|
|
mm²
|
mm²
|
n x d
|
mm
|
kg/km
|
kN
|
|
10
|
10,02
|
7 x 1,35
|
4.1
|
90
|
4,02
|
|
16
|
15,89
|
7 x 1,70
|
5,1
|
143
|
6,37
|
|
25
|
24,25
|
7 x 2,10
|
6,3
|
218
|
9,72
|
|
35
|
34,36
|
7 x 2,50
|
7,5
|
310
|
13,77
|
|
50
|
49,48
|
7 x 3,00
|
9,0
|
446
|
19,84
|
|
50
|
48,35
|
19 x 1,80
|
9,0
|
437
|
19,38
|
|
70
|
65,81
|
19 x 2,10
|
10,5
|
596
|
26,38
|
|
95
|
93,27
|
19 x 2,50
|
12,5
|
845
|
37,39
|
|
120
|
147,11
|
37 x 2,25
|
15,8
|
1337
|
58,98
|
|
150
|
147,11
|
37 x 2,25
|
15,8
|
1337
|
58,98
|
|
185
|
181,62
|
37 x 2,50
|
17,5
|
1649
|
72,81
|
|
240
|
242,54
|
61 x 2,25
|
20,3
|
2209
|
97,23
|
|
300
|
299,43
|
61 x 2,50
|
22,5
|
2725
|
120,04
|
Contact
Phone
+381 35 564 159
info@miliccable.rs
Location
Glavica bb, Paraćin 35250, Republic of Serbia