BS5308 Cables Part 2 Technical Data
Maximum working voltage: 300/500V r.m.s.
Test Voltage: 1000V r.m.s. between conductors and between conductors and screen/armour
Maximum conductor operating temp: + 65°C
Minimum ambient temp: -40°C after installation and only when cable is in a fixed position
Maximum conductor d.c. resistance: W/km at 20°C
Conductor size Multi-core Multipair
16/0.20mm (0.5mm2) 39.0 39.7
24/0.20mm (0.5mm2) 26.0 26.5
7/0.53mm (1.5mm2) 12.1 12.3
Minimum insulation resistance: Individual conductors - 25MW.Km at 20°C. Between individual screens - 1 MW.Km at 20°C
Maximum L/R ratio:
| Conductor size |
µH/W |
| 0.5mm2 |
25 |
| 1.0mm2 |
25 |
| 1.5mm2 |
40 |
Maximum capacitance unbalance: 450pF/metre 1 kHz
Maximum mutual capacitance at 1 kHz: Pair of adjacent cores - 250 pF/m at 1kHz.
Spread of flame: Type 1 complies with BSEN 50265-2-1, HD 405-1 IEC 332-1 Type 2 complies as Type 1 and additionally with IEC 332-3.
Minimum bending radius: Type 1 - 5 x overall diameter. Type 2 - 6 x overall diameter. |
