Building Wires — Stranded & Flexible
Single-core non-sheathed cable with rigid conductor for general purposes. The conductors comply with the requirements of IEC 60228 — Class 2 for stranded conductors and Class 5 for flexible conductors — and are insulated with PVC compound of Type PVC/C applied around the conductor. Maximum conductor temperature in normal use is 70°C.
- Class 2 stranded or Class 5 flexible copper conductors (IEC 60228).
- PVC Type C insulation rated 70°C.
- Colours: red, yellow, blue, black, grey, brown or as per customer request.
- Short-circuit temperature 160°C (5 s max duration).
Technical Specifications
| Relevant Standard | SASO IEC 60227-3 — CU/PVC |
|---|---|
| Conductor Material | Plain annealed copper — Class 2 stranded / Class 5 flexible (IEC 60228) |
| Insulation | Type C PVC (70°C) |
| Colour Code | Red, Yellow, Blue, Black, Grey, Brown or as per customer request |
| Temperature Range | 70°C; short-circuit 160°C (5 s max) |
| Conductor Resistance | According to IEC 60228 |
| Rated Voltage | U0/U — 450/750 V |
| Test Voltage | As per IEC 60227-1 — 2–2.5 kV |
| Packing | Wooden drums or coils |
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Standard Sizes
| No. of cores × size (mm²) | Conductor No. × Ø (mm) | Max. DC resistance @20°C (Ω/km) | Insulation thickness, nom. (mm) | Overall diameter, approx. (mm) | Cable weight, approx. (kg/km) | Current rating in air @30°C (A) |
|---|---|---|---|---|---|---|
| Stranded — Class 2 | ||||||
| 1 × 1.5 | 7 × 0.52 | 12.1 | 0.7 | 3.0 | 23 | 28 |
| 1 × 2.5 | 7 × 0.67 | 7.41 | 0.8 | 3.7 | 35 | 38 |
| 1 × 4 | 7 × 0.85 | 4.61 | 0.8 | 4.2 | 50 | 50 |
| 1 × 6 | 7 × 1.03 | 3.08 | 0.8 | 4.8 | 70 | 66 |
| 1 × 10 | 7 × 1.34 | 1.83 | 1.0 | 6.2 | 119 | 89 |
| 1 × 16 | 7 × 1.67 | 1.15 | 1.0 | 7.5 | 178 | 115 |
| 1 × 25 | 7 × 2.11 | 0.727 | 1.2 | 9.0 | 273 | 152 |
| 1 × 35 | 7 × 2.47 | 0.524 | 1.2 | 10.3 | 365 | 189 |
| 1 × 50 | — | 0.387 | 1.4 | 12.5 | 520 | — |
| 1 × 70 | — | 0.268 | 1.4 | 14.2 | 720 | — |
| 1 × 95 | — | 0.193 | 1.6 | 16.1 | 960 | — |
| Flexible — Class 5 | ||||||
| 1 × 1.5 | 48 × 0.20 | 13.3 | 0.7 | 3.0 | 24 | 28 |
| 1 × 2.5 | 48 × 0.26 | 7.98 | 0.8 | 3.7 | 35 | 38 |
| 1 × 4 | 64 × 0.28 | 4.95 | 0.8 | 4.2 | 50 | 50 |
| 1 × 6 | 96 × 0.28 | 3.30 | 0.8 | 4.6 | 70 | 66 |
| 1 × 10 | 96 × 0.36 | 1.91 | 1.0 | 6.2 | 119 | 89 |
| 1 × 16 | — | 1.21 | 1.0 | 7.6 | 178 | — |
| 1 × 25 | — | 0.780 | 1.2 | 9.1 | 273 | — |
| 1 × 35 | — | 0.554 | 1.2 | 10.3 | 369 | — |
| 1 × 50 | — | 0.386 | 1.4 | 12.6 | 548 | — |
| 1 × 70 | — | 0.272 | 1.4 | 14.2 | 740 | — |
| 1 × 95 | — | 0.206 | 1.6 | 16.1 | 996 | — |
| 1 × 120 | — | 0.161 | 1.6 | 17.6 | 1210 | — |
Diameters and weights are approximate values.
— : not available for this size.
Correction factor for ambient temperature
| Ambient temperature | 25°C | 35°C | 40°C | 45°C | 50°C | 55°C | 60°C |
|---|---|---|---|---|---|---|---|
| Correction factor | 1.06 | 0.94 | 0.87 | 0.79 | 0.71 | 0.61 | 0.50 |
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