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
| 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 |
