Glass-yarn braided Nickel-conductor Wire: NI-GB
Max. operating temp:220℃
NI-GB is a heat-resistant wire, the conductors of which are made of nickel wire that is highly resistant to heat as well as corrosion and covered with glass fiber. A silicone coating, which excels in insulating characteristics, is applied to the insulation of NI-GB. NI-GB is manufactured according to the NINOMIYA Standards.
Applications
NI-GB is used for applications such as the lead wire in an electric heater, which must be highly resistant to heat as well as corrosion, and wire in high-temperature equipment.
Lineup
| Nominal cross-sectional area m㎡ |
Conductor | 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 | 0.15 | 0.3 | 1.9 | 192 | 1.0 | 1000 | 10 |
| 0.75 | 30/0.18 | 1.1 | 0.15 | 0.3 | 2.1 | 128 | 1.0 | 1000 | 13 |
| 1.25 | 50/0.18 | 1.5 | 0.15 | 0.35 | 2.5 | 77.0 | 1.0 | 1000 | 19 |
| 2.0 | 37/0.26 | 1.8 | 0.15 | 0.35 | 2.8 | 49.8 | 1.0 | 1000 | 26 |
| 3.5 | 66/0.26 | 2.4 | 0.15 | 0.35 | 3.4 | 27.9 | 1.0 | 1000 | 44 |
| 5.5 | 35/0.45 | 3.1 | 0.15 | 0.35 | 4.1 | 17.6 | 1.0 | 1000 | 63 |
| 8 | 50/0.45 | 3.7 | – | 0.6 | 4.9 | 12.3 | 1.0 | 1000 | 88 |
| 14 | 88/0.45 | 4.9 | – | 0.6 | 6.1 | 7.00 | 1.0 | 1000 | 146 |
| 22 | 7/20/0.45 | 7.0 | – | 0.6 | 8.2 | 4.49 | 1.0 | 1000 | 235 |
| 38 | 7/34/0.45 | 9.1 | – | 0.6 | 10.3 | 2.64 | 1.0 | 1000 | 390 |
*Since NI-GB series products have hygroscopicity, their insulating characteristics differ depending on the atmosphere in which each of them is routed. Therefore, avoid using NI-GB 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 90℃ | 100℃ | 110℃ | 120℃ | 130℃ | 140℃ | 150℃ | 160℃ | 170℃ | 180℃ | 190℃ | 200℃ | 210℃ | |
| 0.5SQ | 8.5 | 8.2 | 7.8 | 7.5 | 7.1 | 6.7 | 6.3 | 5.9 | 5.3 | 4.8 | 4.0 | 3.3 | 2.2 |
| 0.75SQ | 10.8 | 10.4 | 10.0 | 9.5 | 9.1 | 8.6 | 8.0 | 7.4 | 6.7 | 6.1 | 5.2 | 4.1 | 2.9 |
| 1.25SQ | 15.1 | 14.5 | 13.9 | 13.3 | 12.7 | 12.0 | 11.3 | 10.4 | 9.6 | 8.5 | 7.2 | 6.0 | 4.1 |
| 2SQ | 19.5 | 18.7 | 18.1 | 17.2 | 16.5 | 15.6 | 14.6 | 13.5 | 12.4 | 11.1 | 9.4 | 7.7 | 5.0 |
| 3.5SQ | 28.0 | 27.0 | 25.9 | 24.8 | 23.6 | 22.4 | 20.9 | 19.5 | 17.7 | 16.0 | 13.8 | 11.1 | 7.5 |
| 5.5SQ | 37.9 | 36.4 | 35.2 | 33.6 | 31.9 | 30.1 | 28.2 | 26.2 | 24.0 | 21.5 | 18.8 | 14.9 | 10.5 |
| 8SQ | 47.9 | 46.3 | 44.5 | 42.7 | 40.8 | 38.5 | 36.4 | 33.7 | 30.7 | 27.5 | 23.8 | 19.4 | 13.7 |
| 14SQ | 69.4 | 66.8 | 64.1 | 61.9 | 58.9 | 55.8 | 52.6 | 48.4 | 44.6 | 40.4 | 34.7 | 27.9 | 18.0 |
| 22SQ | 97.6 | 94.3 | 91.0 | 87.5 | 83.8 | 79.0 | 75.0 | 69.5 | 63.7 | 57.3 | 50.0 | 39.5 | 27.9 |
| 38SQ | 138 | 133 | 128 | 123 | 118 | 112 | 105 | 98.7 | 90.1 | 80.6 | 69.8 | 57.0 | 40.3 |
*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 NI-GB series products with a safety current that ensures safe operation.
*The above allowable current values of NI-GB series products are the reference values calculated based on our demonstration experiments.
*NI-GB series products are manufactured according to the Standards of Ninomiya Electric Wire Co., Ltd.