In recent years, the company has been committed to the development of new products, and has successively introduced all kinds of low-smoke halogen-free flame-retardant power cables, low-smoke halogen-free fire-resistant power cables, rodent-proof and termite-proof cables, etc., so that the company's products are more in line with market demand.
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Fire-Resistant Cable
Classification:
Fire-Resistant Cable
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Product Description
1. Product Standard
This product complies with GB/T12706.1-2008 "Rated voltage 1kV to 35kV extruded insulated power cables and accessories, Part 1: Rated voltage 1kV and 3kV cables" and GB/T 19666-2005 "Flame-retardant and fire-resistant wires and cables" Standard production, but also according to the International Electrotechnical Commission recommended standards IEC, British standards, German standards and American standards according to user needs.
2. Scope of application
This product is suitable for fixed installation in power distribution networks or industrial installations with rated power frequency voltages of 0.6/1 kV and below.
3. Use characteristics
Power frequency rated voltage U0/U 0.6/1 kV.
The allowable long-term maximum temperature of the cable conductor does not exceed 70°C.
Maximum temperature of cable conductor during short circuit (the longest time is no more than 5S):
Conductor cross section≤300㎜2 160℃
Conductor section ≥300㎜2 140℃
The ambient temperature during cable laying shall not be lower than 0℃.
Cable bending radius: not less than 10 times the outer diameter of the cable.
4.the cable model
|
model |
name |
Scope of application |
|
NH-VV |
Copper core PVC insulated PVC sheathed fire-resistant power cable | Places such as indoor tunnels and cable trenches cannot withstand external mechanical forces. |
|
NH-VLV |
Aluminum core PVC insulated PVC sheathed fire-resistant power cable | |
|
NH-VY |
Copper core PVC insulated and PE sheathed fire-resistant power cable | |
|
NH-VLY |
Aluminum core PVC insulated and PE sheathed fire-resistant power cable | |
|
NH-VV22 |
Copper core PVC insulated steel tape armored PVC sheathed fire-resistant power cable | Indoors, tunnels, cable trenches or directly buried underground, can be used in humid environments and places with high groundwater levels, and can withstand certain mechanical external forces and certain tensile forces. |
|
NH-VLV22 |
Aluminum core PVC insulated steel tape armored PVC sheathed fire-resistant power cable | |
|
NH-VV23 |
Copper core PVC insulated steel tape armored PE sheathed fire-resistant power cable | |
|
NH-VLV23 |
Aluminum core PVC insulated steel tape armored PE sheathed fire-resistant power cable |
| Nominal cross section mm² | Mica tape refractory layer Thickness * number of layers |
Nominal insulation thickness mm |
Nominal thickness of sheath mm |
Approximate cable outer diameter mm |
Approximate cable weight km/kg |
Maximum DC resistance of conductor at 20℃ /km |
Reference value of cable flow rate at 25℃(A) | |||||
| Soil laying | Air laying | |||||||||||
| NH-VV | NH-VLV | copper | aluminum | Copper core | Aluminum core | Copper core | Aluminum core | |||||
| 1*2.5 | 0.14*2 | 0.8 | 1.4 | 7.3 | 75.3 | 60.1 | 7.41 | 12.1 | 36 | 27 | 25 | 19 |
| 1*4 | 0.14*2 | 1 | 1.4 | 8.1 | 101.4 | 77.3 | 4.61 | 7.41 | 47 | 35 | 33 | 26 |
| 1*6 | 0.14*2 | 1 | 1.4 | 8.7 | 128.7 | 92.1 | 3.08 | 4.661 | 58 | 46 | 41 | 34 |
| 1*10 | 0.14*2 | 1 | 1.4 | 10 | 184.9 | 122.3 | 1.83 | 3.08 | 78 | 58 | 57 | 44 |
| 1*16 | 0.14*2 | 1 | 1.4 | 11 | 252.4 | 153.2 | 1.15 | 1.91 | 100 | 76 | 76 | 59 |
| 1*25 | 0.14*2 | 1.2 | 1.5 | 12.9 | 372.7 | 215.5 | 0.727 | 1.2 | 130 | 98 | 98 | 76 |
| 1*35 | 0.14*2 | 1.2 | 1.5 | 14.1 | 478.5 | 260.6 | 0.524 | 0.868 | 155 | 115 | 115 | 90 |
| 1*50 | 0.14*2 | 1.4 | 1.6 | 16 | 634.,4 | 339.2 | 0.387 | 0.641 | 185 | 140 | 145 | 110 |
| 1*70 | 0.14*2 | 1.4 | 1.6 | 17.8 | 858 | 431.3 | 0.268 | 0.443 | 225 | 170 | 180 | 140 |
| 1*95 | 0.14"2 | 1.6 | 1.7 | 20.3 | 1158.6 | 566.4 | 0.193 | 0.32 | 270 | 205 | 225 | 175 |
| 1*120 | 0.14*2 | 1.6 | 1.7 | 21.9 | 1413.8 | 666.1 | 0.153 | 0.253 | 310 | 235 | 260 | 200 |
| 1*150 | 0.14*2 | 1.8 | 1.7 | 23.9 | 1712 | 793.8 | 0.124 | 0.206 | 350 | 265 | 260 | 200 |
| 1*185 | 0.14*2 | 2 | 1.7 | 26.1 | 2102.6 | 950.4 | 0.0991 | 0.164 | 395 | 3o0 | 345 | 270 |
| 1*240 | 0.14*2 | 2.2 | 1.7 | 29.2 | 2705.1 | 1191.1 | 0.0754 | 0.125 | 455 | 350 | 410 | 320 |
| 1*300 | 0.14*2 | 2.4 | 1.7 | 32 | 2643.3 | 1380.5 | 0.0601 | 0.1 | 515 | 395 | 475 | 370 |
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