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Buflex Sem OfeBuflex® SEM OFE

Reeling Cables with integrated Optical Fibres up to 12/20 (24) kV up to 12/20 (24) kV

 

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

Buflex SEM OFE2. Semi conductive layer

3. Insulation
EPR

4. Semi conductive layer

5. Protective earth conductor
Flexible plain copper class 5 IEC 60228

6. Semi-conductive On earth conductor

7. Optical Fibers Element Multimode 62.5/125 μm

8. Outer sheath
PUR double layer with anti twisting reinforcement
Colour: red

Marking

BUFLEX SEM OFE - Voltage
Number of cores - cross-section
NEXANS - year - week

Core Identification

Six cores design:
- 3 phase cores
- 2 protective earth cores
- 1 optical fiber element

Standards

Nexans specification

Mechanical properties

Max. tensile load  20 N/mm2 of copper cross section 
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, Optical 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   
Current rating (A)  see electrical characteristics page 3.2 B   
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 OFE

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 + 2 x 10 + OFE 
35
38
1,900
2,100
3 x 35 + 2 x 16 + OFE 
38
41
2,300
2,700
3 x 50 + 2 x 16 + OFE 
41
44
2,860
3,600
3 x 70 + 2 x 25 + OFE 
45
48
3,800
5,160
3 x 95 + 2 x 25 + OFE 
49.5
53
4,700
6,600
3 x 120 + 2 x 35 + OFE 
54
57.5
5,900
8,700
3 x 150 + 2 x 35 + OFE 
57.5
61.5
6,950
10,500
6/10 (12) kV 
3 x 25 + 2 x 10 + OFE 
35
38
1,900
2,100
3 x 35 + 2 x 16 + OFE 
38
41
2,300
2,700
3 x 50 + 2 x 16 + OFE 
41
44
2,860
3,600
3 x 70 + 2 x 25 + OFE 
45
48
3,800
5,160
3 x 95 + 2 x 25 + OFE 
49.5
53
4,700
6,600
3 x 120 + 2 x 35 + OFE 
54
57.5
5,900
8,700
3 x 150 + 2 x 35 + OFE 
57.5
61.5
6,950
10,500
8.7/15 (18) kV 
3 x 25 + 2 x 10 + OFE 
35
38
1,900
2,100
3 x 35 + 2 x 16 + OFE 
38
41
2,300
2,700
3 x 50 + 2 x 16 + OFE 
41
44
2,860
3,600
3 x 70 + 2 x 25 + OFE 
45
48
3,800
5,160
3 x 95 + 2 x 25 + OFE 
49.5
53
4,700
6,600
3 x 120 + 2 x 35 + OFE 
54
57.5
5,900
8,700
3 x 150 + 2 x 35 + OFE 
57.5
61.5
6,950
10,500
12/20 (24) kV 
3 x 25 + 2 x 10 + OFE 
44
47
2,650
2,100
3 x 35 + 2 x 16 + OFE 
44.5
47.5
2,900
2,700
3 x 50 + 2 x 16 + OFE 
45.5
49
3,300
3,600
3 x 70 + 2 x 25 + OFE 
49.5
53
4,300
5,160
3 x 95 + 2 x 25 + OFE 
53
56.5
5,100
6,600