Buflex X’Prem Cable

Buflex X'Prem Design

Low Voltage – Control and Power Reeling Cables

Buflex X’Prem Applications

BUFLEX® X’PREM cables with polyurethane sheath are specially designed for reeling application, with high mechanical stresses and sever environmental conditions such as torsion, tension, torque and abrasion.
A strength member has been integrated to increase tensile load, acceleration and speed.

Buflex X’Prem Design

1. Central strength member : Aramid yarns
2. Conductor : Flexible plain copper class 5 IEC 60228
3. Insulation : XLPE
4. Outer Sheath : Double layer with anti-twisting reinforcement PU; Colour: Yellow

Marking

BUFLEX® X’PREM – 0.6/1 kV
Number of cores – cross-section
Nexans Buflex X'PremNEXANS – week – year

Core Identification
Control: white with printed numbers
Power:

  • 4 cores: black – brown – grey – green/yellow (3 earth cores for sizes >25 mm2)
  • 5 cores: black – brown – grey – blue – green/ yellow

Standards
Nexans specification

Cable Characteristiscs

Mechanical properties

Max. tensile load : 25 N/mm2 of phases copper cross section
Bending radii fixed: : 6 x d
mobile: 8 x d
s-shape deflection: 20 x d
Tests Bending test, torsional test, reeling test
Reeling speed up to 150 m/min (for higher speed contact us)
Tests Bending test, torsional test, reeling test
Reeling speed up to 150 m/min (for higher speed contact us)
Chemical properties Oil & Chemicals resistant.
For outdoor applications. Moisture, UV and ozone resistance.

Electrical and Thermal properties

Nominal voltage Uo/U : 0.6/1 kV
Maximum operating voltage in AC systems Um : 1.2 kV
Test voltage:
– Power 3.5 kV in AC
– Control 2.5 kV in AC
Current rating (A) – in accordance with IEC 60354-5-52-12
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 – 30 °C up to + 80 °C

Cable Specification and Ordering

Number of cores and nominal cross-section Outer Diameter Weight (approx.) Maximum tensile load Current Carrying Capacity
(mm2) Min. (mm) Max. (mm) (kg/km) (N) (A)
Power 4 x 2.5 10 11.5 180 250 30
4 G 4 11.5 13 260 400 40
4 G 10 15.5 17 580 1000 71
4 G 16 19.5 21.5 920 1600 95
3 x 25 + 3 G 6 23.5 25.5 1240 1960 121
3 x 35 + 3 G 6 27 29.5 1640 2650 150
3 x 50 + 3 G 10 30 32.5 2240 3750 182
3 x 70 + 3 G 16 35 37.5 3100 5250 234
3 x 95 + 3 G 16 39 42 3890 7150 283
3 x 120 + 3 G 25 44 47 5080 9000 329
3 x 150 + 3 G 25 49 52.5 6160 11250 375
3 x 185 + 3 G 35 54.5 58.5 7680 13800 428
3 x 240 + 3 G 50 60.5 64.5 9870 18000 511
3 x 300 + 3 G 50 68.5 72.5 12300 22500 555
5 G 2.5 11 12.5 220 310 30
5 G 4 13 14.5 320 500 40
5 G 6 15 16.5 450 750 51
5 G 10 18 20 700 1250 71
5 G 16 22 24 1100 2000 95
5 G 25 27 29.5 1550 3100 121
5 G 35 31 33.5 2050 4350 150
Control 7 x 1.5 11.5 13 210 260 20
12 x 1.5 16 17.5 330 450 16
18 x 1.5 16 17.5 410 670 12
24 x 1.5 19 21.5 680 900 10
36 x 1.5 22 24 900 1350 8
7 x 2.5 12.5 14 30 430 28
18 x 2.5 18.5 20.5 740 1120 16
24 x 2.5 22.5 24.5 1050 1500 12
42 x 2.5 27 29.5 1500 2620 8
26 x 2.5 + (4 x 2.5)C 24.5 27 1260 1870 11

Current carrying capacities are given for an uncoiled cable laid on the ground, a conductor temperature of 90°C and ambient temperature of 30°C.

Correction factors must be apply for other conditions.

Options

Other composition can be manufactured on request as e.g.
composite cables including power and control cores, screened pairs or optical fibers element.

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