HUADONG CABLE GROUP
Professional Cables and Wires Manufacturer in China
HUADONG CABLE GROUP
Professional Cables and Wires Manufacturer in China
Type THHN/TTHWNTHWN-2 building wire is intended for general purpose applications as defined by the National Electrical Code (NEC). Type THHN/THWN/THWN-2 is permitted for new construction or rewiring for 600-volt applications. For applications requiring Type THHN or THWN-2, the conductor is appropriate for use in wet or dry locations at temperatures not to exceed 90?C or not to exceed 75°C in oil or coolants. For applications requiring Type MTW, the conductor is appropriate for use in dry locations at 90°C, or not to exceed 60°C in wet locations or where exposed to oils or coolants
THW wire– Indicates a single conductor having flame-retardant, moisture and heat-resistant thermoplastic insulation. The wire is rated 75°C wet or dry.THW cable and wires are used generally in building wiring, feeder and branch circuits, and internal secondary industrial distribution.
TW wire– Indicates a single conductor having flame-retardant, moisture-resistant thermoplastic insulation. The wire is rated 60°C wet or dry.TW cable and wires are used generally in building wiring, feeder and branch circuits, and internal secondary industrial distribution
TW/THW/THW-2 Cable Parameter
| Cross sectionmm2 | Construction(mm) | Weightkg/km | ||
| Copper conductor | PVC Insulation | |||
| Numbers of wire | Wire Dia. | Norminal/Thickness | cable | |
| 0.5 | 16 | 0.2 | 0.6 | 9.1 |
| 0.75 | 24 | 0.2 | 0.6 | 12.3 |
| 1 | 32 | 0.2 | 0.6 | 15 |
| 1.5 | 30 | 0.25 | 0.7 | 21.8 |
| 2.5 | 49 | 0.25 | 0.8 | 34 |
| 4 | 56 | 0.3 | 0.8 | 50.8 |
| 6 | 84 | 0.3 | 0.8 | 74.8 |
| 10 | 84 | 0.4 | 1 | 129.8 |
| 16 | 126 | 0.4 | 1 | 172 |
| 25 | 196 | 0.4 | 1.2 | 265.6 |
| 35 | 276 | 0.4 | 1.2 | 361.7 |
| 50 | 396 | 0.4 | 1.4 | 516.5 |
| 70 | 360 | 0.5 | 1.4 | 714.9 |
