S14 BU(c) 250 V , Fire Resistant, NEK606, SHF2 Sheath

S14 BUc 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 60332-1
IEC 60332-3-22
IEC 60754-1,2
IEC 61034-1,2
NEK 606:2004
IEC 60331-21
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

mm²

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

(mm²)

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