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KNOWLEDGE
WIRE SIZE
| Wire size | Assigned maximum Ampere rating | |
|---|---|---|
| AWG or kcmil | mm2 | A |
| 30 | 0.05 | 0.5 |
| 28 | 0.08 | 0.8 |
| 26 | 0.13 | 1 |
| 24 | 0.20 | 2 |
| 22 | 0.32 | 3 |
| 20 | 0.52 | 5 |
| 18 | 0.82 | 7 |
| 16 | 1.3 | 10 |
| 14 | 2.1 | 15 |
| 12 | 3.3 | 20 |
| 10 | 5.3 | 30 |
| 8 | 8.4 | 50 |
| 6 | 13.3 | 65 |
| 4 | 21.2 | 85 |
| 3 | 26.6 | 100 |
| 2 | 33.6 | 115 |
| 1 | 42.4 | 130 |
| 1/0 | 53.5 | 150 |
| 2/0 | 67.4 | 175 |
| 3/0 | 85.0 | 200 |
| 4/0 | 107 | 230 |
| 250 | 127 | 255 |
| 300 | 152 | 285 |
| 350 | 177 | 310 |
| 400 | 203 | 335 |
| 500 | 253 | 380 |
| 600 | 304 | 420 |
| 700 | 355 | 460 |
| 750 | 380 | 475 |
| 800 | 405 | 490 |
| 900 | 456 | 520 |
| 1000 | 507 | 545 |
| 1250 | 633 | 590 |
| 1500 | 760 | 625 |
| 1750 | 887 | 650 |
| 2000 | 1010 | 665 |
Properties of Insulating Materials
Properties of Insulating and Jacketing Materials
| Material Type | Continuous Operating Temperature | Abrasion Resistance | Chemical Resistance | Moisture Resistance | Solvent Resistance | Flame Resistance |
|---|---|---|---|---|---|---|
| PE | 176°F (80°C) | Good | Excellent | Excellent | Excellent | Poor |
| CPE | 194°F (90°C) | Very Good | Excellent | Excellent | Excellent | Excellent |
| PVC | 221°F (105°C) | Very Good | Very Good | Good | Fair | Excellent |
| TPE | 257°F (125°C) | Excellent | Poor | Good | Good | Excellent |
| Nylon | 250°F (121°C) | Excellent | Very Good | Fair | Good | Poor |
| ETFE | 300°F (150°C) | Excellent | Excellent | Excellent | Excellent | Excellent |
| FEP | 400°F (200°C) | Excellent | Excellent | Excellent | Excellent | Excellent |
| TE/D | 400°F (200°C) | Excellent | Excellent | Excellent | Excellent | Excellent |
| PFA | 500°F (260°C) | Excellent | Excellent | Excellent | Excellent | Excellent |
| PTFE | 500°F (260°C) | Good | Excellent | Excellent | Excellent | Excellent |
| Polyimide | 500°F (260°C) | Excellent | Excellent | Excellent | Good | Good |
| B-Fiber* | 500°F (260°C) | Good | Good | Fair | Good | Good |
| G-Glass* | 950°F (510°C) | Poor | Good | Good | Excellent | Excellent |
| Q-Glass* | 1300°F (704°C) | Fair | Good | Good | Excellent | Excellent |
| HG | 1800°F (982°C) | Poor | Good | Poor | Excellent | Excellent |
| CEFIRTM | 2200°F (1204°C) | Fair | Good | Fair | Excellent | Excellent |
*Performance characteristics of fibrous products are improved with impregnation. Impregnation maintained to 400°F (200°C).
| Designations | |
| PE | Polyethylene |
| CPE | Chlorinated Polyethylene |
| PVC | Polyvinyl Chloride |
| TPE | Thermoplastic Elastomer |
| Nylon | Polyamide Nylon 6 |
| ETFE | Ethylene-Tetrafluoroethylene |
| FEP | Fluorinated Ethylene Propylene |
| TE/D | Fluorinated Ethylene Propylene |
| PFA | Perflourinated-Tetrafluoroethylene |
| PFTE | Poly-Tetrafluoroethylene |
| Polyimide | Polyimide Tape |
| B-Fiber | Synthetic Polyamide Fibers |
| G-Glass | Braided or Served Fiberglass Yarn |
| Q-Glass | Braided Fiberglass Yarn |
| HG | Braided Vitreous Silica |
| CEFIRTM | Braided Ceramic Fiber |
