rm – apvalus daugiavielis iš vario ar aliuminio (2 klasė)
| Skerspjūvis, mm² | Nesutankinto laidininko skersmuo,didžiausias dydis, mm | Sutankinto laidininko skersmuo, min dydis, mm | Sutankinto laidininko skersmuo, max dydis, mm |
|---|---|---|---|
| 0.5 | 1.1 | – | – |
| 0.75 | 1.2 | – | – |
| 1 | 1.4 | – | – |
| 1.5 | 1.7 | – | – |
| 2.5 | 2.2 | – | – |
| 4 | 2.7 | – | – |
| 6 | 3.3 | – | – |
| 10 | 4.2 | – | – |
| 16 | 5.3 | – | – |
| 25 | 6.6 | 5.6 | 6.5 |
| 35 | 7.9 | 6.6 | 7.5 |
| 50 | 9.1 | 7.7 | 8.6 |
| 70 | 11.0 | 9.3 | 10.2 |
| 95 | 12.9 | 11.0 | 12.0 |
| 120 | 14.5 | 12.5 | 13.5 |
| 150 | 16.2 | 13.9 | 15.0 |
| 185 | 18.0 | 15.5 | 16.8 |
| 240 | 20.6 | 17.8 | 19.2 |
| 300 | 23.1 | 20.0 | 21.6 |
| 400 | 26.1 | 22.9 | 24.6 |
| 500 | 29.2 | 25.7 | 27.6 |
| 630 | 33.2 | 29.3 | 32.5 |
| 800 | 37.6 | – | – |
| 1000 | 42.2 | – | – |