S14 BU(c) 250 V

Applications

These unarmoured cables are fire resistant, flame retardant, low smoke and halogen free, used for instrumentation, communication, control and alarm systems.

Standards

  • IEC 60092-376
  • IEC 60092-351
  • IEC 60092-359
  • IEC 60331-21
  • IEC 60332-1
  • IEC 60332-3-22
  • IEC 60754-1,2
  • IEC 61034-1,2
  • NEK 606:2004

Construction

S14 BU(c) 250 V S14 BU(c) 250 V
Conductors Circular tinned annealed stranded copper wire to IEC 60228 class 2.
Insulation Mica tape + Halogen free EPR compound.
Twinning Colour coded cores twisted together.
Collective Shielding Pairs/triples are layed up and collectively screened by copper backed polyester tape in contact with a stranded tinned copper drain wire.
Pairs/triples are numbered with numbered tape or by numbers printed directly on the insulated conductors.
Outer Sheath Halogen free thermosetting compound, SHF2, coloured grey (blue for intrinsically safe).

Electrical Characteristics

Nominal Cross Section Area mm^2 0.75 1.0 1.5
Nominal Conductor Diameter mm 1.1 1.3 1.6
Maximum Resistant@20℃ Ω/km 26.3 19.3 12.9
Mutual Capacitance nF/km 75 80 85
Nominal Inductance@1KHz MH/km 0.727 0.686 0.667
Maximum L/R@1KHz μH/Ω 20 25 35
Operating Voltage V 250 250 250

Mechanical and Thermal Properties

Bending Radius 8×OD (during installation)
6×OD (fixed installed)
Temperature Range -20℃ ~ +90℃

Dimensions and Weight

Construction No. of elements×No. of cores in element×Cross section(mm^2) Nominal Insulation Thickness (mm) Nominal Sheath Thickness (mm) Nominal Overall Diameter (mm) Nominal Weight (kg/km)
2×2×0.75 0.6 1.1 10.2 185
4×2×0.75 0.6 1.2 12.5 240
7×2×0.75 0.6 1.4 15.0 350
8×2×0.75 0.6 1.4 16.3 395
12×2×0.75 0.6 1.5 19.5 540
16×2×0.75 0.6 1.6 21.8 690
19×2×0.75 0.6 1.7 23.2 780
24×2×0.75 0.6 1.8 26.7 985
32×2×0.75 0.6 2.1 29.6 1225
2×3×0.75 0.6 1.2 12.0 205
3×3×0.75 0.6 1.2 13.1 265
4×3×0.75 0.6 1.3 14.4 320
7×3×0.75 0.6 1.3 17.4 475
8×3×0.75 0.6 1.5 19.5 590
12×3×0.75 0.6 1.6 22.9 745
16×3×0.75 0.6 1.7 25.6 965
19×3×0.75 0.6 1.8 27.2 1095
24×3×0.75 0.6 2.0 31.6 1405
2×2×1.0 0.6 1.1 10.7 210
4×2×1.0 0.6 1.1 13.3 285
7×2×1.0 0.6 1.4 16.0 415
8×2×1.0 0.6 1.4 17.3 465
12×2×1.0 0.6 1.6 20.8 645
16×2×1.0 0.6 1.7 23.3 825
19×2×1.0 0.6 1.8 24.7 940
24×2×1.0 0.6 1.9 28.8 1200
32×2×1.0 0.6 2.3 31.8 1495
3×3×1.0 0.6 1.2 14.0 310
4×3×1.0 0.6 1.4 15.3 380
7×3×1.0 0.6 1.6 18.6 570
12×3×1.0 0.6 1.6 24.4 900
16×3×1.0 0.6 1.7 27.3 1160
19×3×1.0 0.6 1.9 29.0 1325
24×3×1.0 0.6 2.1 33.7 1700
2×2×1.5 0.7 1.2 12.1 275
4×2×1.5 0.7 1.3 15.2 380
7×2×1.5 0.7 1.5 18.4 565
8×2×1.5 0.7 1.5 20.0 640
12×2×1.5 0.7 1.7 24.3 895
16×2×1.5 0.7 1.8 27.2 1150
19×2×1.5 0.7 1.9 28.6 1295
24×2×1.5 0.7 2.1 33.5 1670
32×2×1.5 0.7 2.3 37.0 2095
2×3×1.5 0.7 1.3 15.0 310
3×3×1.5 0.7 1.3 16.0 420
4×3×1.5 0.7 1.4 17.7 515
7×3×1.5 0.7 1.6 21.5 785
8×3×1.5 0.7 1.6 23.5 930
12×3×1.5 0.7 1.8 28.5 1255
16×3×1.5 0.7 1.9 31.9 1630
19×3×1.5 0.7 2.0 33.8 1855
24×3×1.5 0.7 2.2 39.3 2375