Glass-yarn braided Wire: TFGB
Max. operating temp:180℃
Rated voltage：600V
TFGB is a heat-resistant wire, the conductors of which are wrapped in PTFE tape coated with glass fiber. Since the conductors are wrapped in PTFE, TFGB has higher insulating characteristics than glass-yarn braided wire (GB).
Applications
Since TFGB is a low-cost heat-resistant insulated wire, it is used for applications such as the lead wire of an electric heater and the wire used in general high-temperature parts with temperatures up to 180℃.
Lineup
| Nominal cross-sectional area m㎡ |
Conductor | Taping thickness mm |
Served glass yarn thickness mm |
Braid thickness mm |
Standard overall diameter mm |
Conductor resistance (20℃, standard) Ω/km |
Insulation resistance (20℃, minimum) MΩ・km |
Test voltage (AC, 1 min.) V |
Estimated weight kg/km |
|
|---|---|---|---|---|---|---|---|---|---|---|
| Composition Pcs/mm |
Outside diameter mm |
|||||||||
| 0.5 | 20/0.18 | 0.9 | 0.05 | 0.15 | 0.3 | 2.0 | 38.6 | 10 | 2000 | 9 |
| 0.75 | 30/0.18 | 1.1 | 0.05 | 0.15 | 0.3 | 2.2 | 25.8 | 10 | 2000 | 12 |
| 1.25 | 50/0.18 | 1.5 | 0.05 | 0.15 | 0.35 | 2.6 | 15.5 | 10 | 2000 | 18 |
| 2.0 | 37/0.26 | 1.8 | 0.05 | 0.15 | 0.35 | 2.9 | 9.91 | 10 | 2000 | 25 |
| 3.5 | 45/0.32 | 2.4 | 0.05 | 0.15 | 0.35 | 3.6 | 5.38 | 10 | 2000 | 43 |
| 5.5 | 35/0.45 | 3.1 | 0.05 | 0.15 | 0.35 | 4.2 | 3.50 | 10 | 2000 | 65 |
| 8 | 50/0.45 | 3.7 | 0.05 | – | 0.6 | 5.0 | 2.45 | 10 | 2000 | 95 |
| 14 | 88/0.45 | 4.9 | 0.05 | – | 0.6 | 6.2 | 1.43 | 10 | 2000 | 160 |
| 22 | 7/20/0.45 | 7.0 | 0.05 | – | 0.6 | 8.3 | 0.892 | 10 | 2000 | 245 |
*Since TFGB series products have hygroscopicity, their insulating characteristics greatly differ depending on the atmosphere in which each of them is routed. Therefore, avoid using TFGB series products in humid or wet places. Please feel free to contact our Sales Department for custom-made products not listed above.
List of allowable current values
| Size | Ambient temperature | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50℃ | 60℃ | 70℃ | 80℃ | 90℃ | 100℃ | 110℃ | 120℃ | 130℃ | 140℃ | 150℃ | 160℃ | 170℃ | |
| 0.5SQ | 21.1 | 20.2 | 19.4 | 18.3 | 17.4 | 16.5 | 15.5 | 14.2 | 13.0 | 11.6 | 9.9 | 8.1 | 5.2 |
| 0.75SQ | 26.6 | 25.5 | 24.6 | 23.4 | 22.1 | 21.0 | 19.7 | 18.2 | 16.5 | 14.7 | 12.7 | 10.2 | 6.9 |
| 1.25SQ | 36.9 | 35.3 | 34.0 | 32.6 | 30.9 | 29.1 | 27.4 | 25.3 | 23.1 | 20.5 | 17.7 | 14.2 | 9.6 |
| 2SQ | 47.6 | 46.1 | 44.2 | 42.3 | 40.3 | 37.8 | 25.5 | 33.1 | 29.9 | 27.0 | 23.0 | 18.2 | 12.9 |
| 3.5SQ | 70.5 | 67.6 | 65.2 | 62.1 | 59.4 | 55.9 | 52.2 | 48.2 | 43.9 | 39.0 | 33.5 | 26.9 | 17.9 |
| 5.5SQ | 92.5 | 89.5 | 85.2 | 82.2 | 78.5 | 73.5 | 69.3 | 63.7 | 58.8 | 52.0 | 45.8 | 36.8 | 24.5 |
| 8SQ | 117 | 112 | 108 | 103 | 98.5 | 93.0 | 87.2 | 80.9 | 74.1 | 66.6 | 58.1 | 45.9 | 32.5 |
| 14SQ | 167 | 162 | 156 | 149 | 141 | 134 | 127 | 117 | 107 | 95.2 | 81.7 | 65.5 | 43.7 |
| 22SQ | 233 | 226 | 217 | 207 | 197 | 187 | 175 | 163 | 150 | 136 | 115 | 96.2 | 64.1 |
*The above allowable current values are the values calculated based on the assumption that the products are used in a normal open atmosphere.
Please use TFGB series products with a safety current that ensures safe operation.
*The above allowable current values of TFGB series products are the reference values calculated based on our demonstration experiments.
*TFGB series products are manufactured based on the Standards of Ninomiya Electric Wire Co., Ltd.