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| Type of conductor or core | Nominal cross-sectional area mm² (Core) | Number of wires min. | Resistance at 20 °C Ω/km Max. | Dia. of Conductor | Breaking force (N) | Thickness of dielectric mm | Outside diameter mm | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIN | MAX | MIN | MAX | |||||||||
| Phase or neutral (aluminium) | 16(2/4) | 6 | 1.91 | 4.5 | 4.8 | 2200 | 1.3 | 7.1 | 7.9 | |||
| 25(2/3/4) | 6 | 1.20 | 5.8 | 6.1 | 3500 | 1.3 | 8.4 | 9.2 | ||||
| 35(2/3/4) | 6 | 0.868 | 6.8 | 7.2 | 4900 | 1.3 | 9.4 | 10.3 | ||||
| 50(2/3/4) | 6 | 0.641 | 8.0 | 8.4 | 7000 | 1.5 | 11 | 11.9 | ||||
| 70(4) | 12 | 0.443 | 9.6 | 10.1 | 9800 | 1.5 | 12.6 | 13.6 | ||||
| 95(2/4) | 15 | 0.320 | 11.3 | 11.9 | 13300 | 1.7 | 14.7 | 15.9 | ||||
| 120(4) | 15 | 0.253 | 12.8 | 13.5 | 16800 | 1.7 | 16.2 | 17.5 | ||||
| 150(4) | 15 | 0.206 | 14.1 | 14.9 | 21000 | 1.7 | 17.5 | 18.9 | ||||
Frequently Asked Questions
What is the maximum DC resistance of a 16 mm² aluminium conductor at 20 °C?
According to the technical specifications, the maximum electrical resistance for a 16 mm² nominal cross-sectional area aluminium conductor at 20 °C is 1.91 Ω/km.
How does the conductor cross-sectional area affect the minimum breaking force?
The minimum breaking force increases proportionally with the nominal cross-sectional area. It ranges from 2200 N for a 16 mm² conductor up to 21000 N for a 150 mm² conductor.
What is the required insulation (dielectric) thickness for these aluminium conductors?
The thickness of the dielectric material varies depending on the core size: 1.3 mm for sizes 16 mm² to 35 mm², 1.5 mm for sizes 50 mm² and 70 mm², and 1.7 mm for larger sizes ranging from 95 mm² to 150 mm².
What are the minimum and maximum outside diameters for a 95 mm² conductor?
For a 95 mm² aluminium conductor, the minimum outside diameter is 14.7 mm and the maximum outside diameter is 15.9 mm.
How many minimum wires are required for a 70 mm² aluminium conductor?
A 70 mm² nominal cross-sectional area aluminium conductor requires a minimum of 12 wires in its structural layout.
















