Buflex® SEM
Reeling Cables
Applications
Cables with reinforced
polyurethan sheath, are
especially designed for
reeling and tunelling
applications. Also used for
grabs unloaders.
Design
1. Conductor
Flexible plain copper
class 5
IEC 60228
2. Semi conductive layer
3. Insulation
EPR
4. Semi conductive layer
5. Protective earth conductor
Flexible plain copper
class 5
IEC 60228
6. Semi conductive layer
On earth conductors
7. Outer sheath
PUR
Double layer with
anti twisting reinforcement
Colour: red
Marking
BUFLEX SEM - Voltage
Number of cores - cross-section
NEXANS - year - week
Core Identification
Six cores design:
- 3 phase cores
- 3 protective earth cores
Standards
Nexans specification
Mechanical properties
| Max. tensile load |
20 N/mm2 of copper cross section |
| Bending radii |
see construction characteristics page 3.1 E |
| Tests |
alternating/reversed bending test, torsional resistance test |
| Reeling speed |
up to 120 m/min (for higher speed contact us) |
Chemical properties
Oil resistant.
For outdoor applications. Moisture, UV and ozone resistance.
Electrical and Thermal properties
| Nominal voltage |
Uo/U |
3.6/6 kV to 12/20 kV |
| Maximum operating voltage in AC systems |
Um |
1.2 x U |
| Test voltage |
3.5 x Uo in AC |
|
| Max. temperature at the conductor: |
|
| - in service |
+ 90 °C |
|
| - under short-circuit conditions |
+ 250 °C |
|
| Max. surface temperature: |
|
| - fixed installation |
- 40 °C up to + 80 °C |
|
| - mobile operation |
- 25 °C up to + 80 °C |
|
BUFLEX® SEM
Number of cores and
nominal cross-section |
Number of cores and
nominal cross-section |
Outer diameter |
Weight
approx. |
Tensile
load |
(mm2) |
Min.
(mm) |
Max.
(mm) |
(kg/km) |
(N) |
3.6/6 (7.2) kV |
3 x 25 + 3 x 10 |
35 |
38 |
1,900 |
2,100 |
3 x 35 + 3 x 10 |
38 |
41 |
2,300 |
2,700 |
3 x 50 + 3 x 10 |
41 |
44 |
2,860 |
3,600 |
3 x 70 + 3 x 16 |
45 |
48 |
3,800 |
5,160 |
3 x 95 + 3 x 16 |
49.5 |
53 |
4,700 |
6,600 |
3 x 120 + 3 x 25 |
54 |
57.5 |
5,900 |
8,700 |
3 x 150 + 3 x 25 |
57.5 |
61.5 |
6,950 |
10,500 |
6/10 (12) kV |
3 x 25 + 3 x 10 |
35 |
38 |
1,900 |
2,100 |
3 x 35 + 3 x 10 |
38 |
41 |
2,300 |
2,700 |
3 x 50 + 3 x 10 |
41 |
44 |
2,860 |
3,600 |
3 x 70 + 3 x 16 |
45 |
48 |
3,800 |
5,160 |
3 x 95 + 3 x 16 |
49.5 |
53 |
4,700 |
6,600 |
3 x 120 + 3 x 25 |
54 |
57.5 |
5,900 |
8,700 |
3 x 150 + 3 x 25 |
57.5 |
61.5 |
6,950 |
10,500 |
8.7/15 (18) kV |
3 x 25 + 3 x 10 |
35 |
38 |
1,900 |
2,100 |
3 x 35 + 3 x 10 |
38 |
41 |
2,300 |
2,700 |
3 x 50 + 3 x 10 |
41 |
44 |
2,860 |
3,600 |
3 x 70 + 3 x 16 |
45 |
48 |
3,800 |
5,160 |
3 x 95 + 3 x 16 |
49.5 |
53 |
4,700 |
6,600 |
3 x 120 + 3 x 25 |
54 |
57.5 |
5,900 |
8,700 |
3 x 150 + 3 x 25 |
57.5 |
61.5 |
6,950 |
10,500 |
12/20 (24) kV |
3 x 25 + 3 x 10 |
44 |
47 |
2,650 |
2,100 |
3 x 35 + 3 x 10 |
44.5 |
47.5 |
2,900 |
2,700 |
3 x 50 + 3 x 10 |
45.5 |
49 |
3,300 |
3,600 |
3 x 70 + 3 x 16 |
49.5 |
53 |
4,300 |
5,160 |
3 x 95 + 3 x 16 |
53 |
56.5 |
5,100 |
6,600 |
|