Fire Resistant Power Cable (Fixed Installed Cable for Coal Mining)
Cables used in harsh environments such as mining need to be durable as well as functional. This fire resistant power cable is a common sight on the cable installation project, and is used typically to carry electricity to mining equipment safely with very little risk of being damaged. The thick insulation of these mining cables protects the conductors within from fire and crushing damage.
The fire resistant cable's reference standard: MT818. 11 ~ 13-2009
Working conditions of fire resistant power cable
1) This maximum working temperature of the conductor 90℃ for XLPE insulation and 70℃ for PVC insulation.
In case of a short (lasting less than 5 seconds) the maximum temperature of the cable conductor shall not be above 250° for XCLPE insulation and 160℃ for PVC insulation
Environment temperature should be no lower than 0℃ when installing the cable;
2) Bending radius allowance of the fire resistant power cable
Single core cable: Unarmored cable 20D; Steel tape armored cable 15D
Multi-Core cable: Unarmored cable 15D; Steel tape armored cable 12D.
Notes: D= practical external diameter of cable.
Type | Description |
MV(YJ )V | Insulated PVC sheathed power cable for coal mine |
MV(YJ)V22 | Insulated steel tape armored PVC sheathed power cable for coal mine |
MV(YJ)V32 | Insulated thin steel wire armored PVC sheathed power cable for coal mine |
MV(YJ)V42 | Insulated thick steel wire armored PVC sheathed power cable for coal mine |
Rated cross area (mm2) | 4 | 6 | 10 | 16 | 25 | 35 | 50 |
Cu (Ω/km) | 4.61 | 3.08 | 1.83 | 1.15 | 0.727 | 0.524 | 0.387 |
Rated cross area (mm2) | 70 | 95 | 120 | 150 | 185 | 240 | 300 |
Cu (Ω/km) | 0.268 | 0.193 | 0.153 | 0.124 | 0.0991 | 0.0754 | 0.0601 |
Rated Voltage (kV) | 3.6/6 | 6/6 6/10 | 8.7/10 8.7/15 |
Test Voltage (kV) | 6.23 | 10.38 | 15.05 |
Discharge capacity (pC) | 10 | 10 | 10 |
Rated Voltage (kV) | 0.6/1 | 1.8/3 | 3.6/6 3.6/10 | 6/6 6/10 | 8.7/10 8.7/15 |
Test Voltage (kV) | 3.5 | 6.5 | 12.5 | 21 | 30.5 |
Test Time (min) | 5 | 5 | 5 | 5 | 5 |
Apply the model number: VV VLV;
Limit the term :
Environment temperature : 25°C;
Soil temperature : 25°C;
Soil thermal receptivity: 120°·cm/W
Area (mm2) | The long-term admission current-carrying capacity in air(A) | The long-term admission current-carrying capacity in soil(A) | ||||||||||
Cu | Al | Cu | Al | |||||||||
1-core | 2-core | 3/4 core | 1-core | 2-core | 3/4 core | 1-core | 2-core | 3/4core | 1-core | 2-core | 3/4 core | |
4 | 41 | 35 | 29 | 31 | 26 | 22 | 56 | 41 | 35 | 43 | 32 | 27 |
6 | 54 | 44 | 38 | 41 | 34 | 29 | 70 | 52 | 44 | 54 | 40 | 34 |
10 | 72 | 60 | 52 | 55 | 46 | 40 | 94 | 69 | 59 | 72 | 53 | 46 |
16 | 97 | 79 | 69 | 74 | 61 | 53 | 124 | 91 | 77 | 95 | 70 | 59 |
25 | 132 | 107 | 93 | 102 | 83 | 72 | 163 | 118 | 101 | 125 | 91 | 78 |
35 | 162 | 124 | 113 | 124 | 95 | 87 | 196 | 139 | 124 | 151 | 107 | 95 |
50 | 204 | 155 | 140 | 157 | 120 | 108 | 241 | 171 | 150 | 185 | 132 | 116 |
70 | 253 | 196 | 175 | 195 | 151 | 135 | 292 | 208 | 184 | 225 | 160 | 141 |
95 | 272 | 238 | 214 | 214 | 182 | 165 | 348 | 257 | 218 | 267 | 191 | 168 |
120 | 356 | 273 | 247 | 276 | 211 | 191 | 392 | 282 | 247 | 305 | 218 | 190 |
150 | 410 | 315 | 293 | 316 | 242 | 225 | 447 | 322 | 283 | 343 | 248 | 218 |
185 | 465 | 356 | 332 | 358 | 274 | 257 | 500 | 360 | 318 | 385 | 278 | 247 |
240 | 552 | / | 393 | 425 | / | 306 | 582 | / | 368 | 447 | / | 284 |
300 | 636 | / | 452 | 490 | / | 352 | 660 | / | 417 | 500 | / | 317 |
400 | 757 | / | / | 589 | / | / | 773 | / | / | 593 | / | / |
500 | 886 | / | / | 680 | / | / | 876 | / | / | 670 | / | / |
Apply the model number: VV22 VLV 22 VV32 VLV32 VV42 VLV42
Limit the term :
Environment temperature : 25°C;
Soil temperature : 25°C;
Soil thermal receptivity: 120°·cm/W
Conductor Area (mm2) | The long-term admission current-carrying capacity in air(A) | The long-term admission current-carrying capacity in soil(A) | ||||||||||
Copper core cable | Aluminum core cable | Copper core cable | Aluminum core cable | |||||||||
2-core | 3-core | 4-core | 2-core | 3-core | 4-core | 2-core | 3-core | 4-core | 2-core | 3-core | 4-core | |
4 | 36 | 31 | 30 | 27 | 23 | 23 | 41 | 35 | 34 | 32 | 27 | 26 |
6 | 45 | 39 | 39 | 35 | 30 | 30 | 52 | 45 | 44 | 40 | 34 | 34 |
10 | 60 | 52 | 52 | 46 | 40 | 40 | 67 | 59 | 58 | 52 | 46 | 45 |
16 | 81 | 71 | 70 | 62 | 54 | 54 | 90 | 78 | 77 | 70 | 60 | 59 |
25 | 106 | 96 | 94 | 81 | 73 | 73 | 118 | 103 | 100 | 91 | 79 | 77 |
35 | 128 | 114 | 119 | 99 | 88 | 92 | 140 | 123 | 126 | 108 | 94 | 97 |
50 | 160 | 144 | 149 | 123 | 111 | 115 | 171 | 151 | 154 | 132 | 116 | 118 |
70 | 197 | 179 | 184 | 152 | 138 | 141 | 207 | 192 | 195 | 160 | 142 | 142 |
95 | 240 | 217 | 226 | 185 | 167 | 174 | 248 | 216 | 221 | 191 | 166 | 171 |
120 | 278 | 252 | 260 | 215 | 194 | 201 | 284 | 247 | 252 | 219 | 190 | 194 |
150 | 319 | 292 | 301 | 246 | 225 | 231 | 320 | 282 | 384 | 246 | 216 | 218 |
185 | 356 | 333 | 345 | 278 | 257 | 266 | 357 | 315 | 319 | 280 | 242 | 246 |
240 | 392 | 406 | 305 | 314 | 364 | 370 | 295 | 300 | ||||
300 | 450 | 466 | 351 | 360 | 433 | 440 | 340 | 348 |
Apply the model number: YJV YJLV
Limit the term :
Environment temperature : 40°C;
Soil temperature : 25°C;
Soil thermal receptivity: 200°C·cm/W
Conductor Area (mm2) | The long-term admission current-carrying capacity in air(A) | The long-term admission current-carrying capacity in soil(A) | ||||||
Copper core cable | Aluminum core cable | Copper core cable | Aluminum core cable | |||||
1-core | 3/4 core | 1-core | 3/4 core | 1-core | 3/4 core | 1-core | 3/4 core | |
2.5 | 34 | 32 | 27 | 25 | 36 | 32 | 27 | 25 |
4 | 44 | 41 | 35 | 32 | 47 | 41 | 35 | 32 |
6 | 56 | 52 | 45 | 42 | 59 | 52 | 46 | 42 |
10 | 77 | 70 | 60 | 53 | 78 | 69 | 59 | 53 |
16 | 100 | 91 | 78 | 70 | 102 | 90 | 77 | 71 |
25 | 132 | 118 | 102 | 91 | 130 | 117 | 104 | 91 |
35 | 164 | 150 | 127 | 114 | 169 | 143 | 117 | 113 |
50 | 196 | 182 | 152 | 146 | 187 | 169 | 139 | 134 |
70 | 251 | 228 | 195 | 178 | 226 | 208 | 174 | 165 |
95 | 305 | 273 | 236 | 214 | 269 | 247 | 208 | 195 |
120 | 351 | 314 | 272 | 246 | 300 | 282 | 239 | 221 |
150 | 401 | 360 | 311 | 278 | 339 | 321 | 269 | 247 |
185 | 461 | 410 | 359 | 319 | 382 | 356 | 300 | 278 |
240 | 546 | 483 | 424 | 378 | 435 | 408 | 348 | 321 |
300 | 611 | 552 | 474 | 419 | 495 | 469 | 391 | 365 |
400 | 716 | / | 546 | / | 574 | / | 456 | / |
Apply the model number: YJV22, YJLV22, YJV32, YJLV32,YJV42, YJLV42
Limit the term :
Environment temperature : 40°C;
Soil temperature : 25°C;
Soil thermal receptivity: 200°C·cm/W
Conductor Area (mm2) | The long-term admission current-carrying capacity in air(A) | The long-term admission current-carrying capacity in soil(A) | ||
Copper core cable | Aluminum core cable | Copper core cable | Aluminum core cable | |
3/4 core | 3/4core | 3/4core | 3/4core | |
4 | 41 | 32 | 41 | 32 |
6 | 52 | 42 | 52 | 42 |
10 | 70 | 53 | 69 | 53 |
16 | 91 | 70 | 90 | 71 |
25 | 118 | 91 | 117 | 91 |
35 | 150 | 114 | 143 | 113 |
50 | 182 | 146 | 169 | 134 |
70 | 228 | 178 | 208 | 165 |
95 | 273 | 214 | 247 | 195 |
120 | 314 | 246 | 282 | 221 |
150 | 360 | 278 | 321 | 247 |
185 | 410 | 319 | 356 | 278 |
240 | 483 | 378 | 408 | 321 |
300 | 552 | 419 | 469 | 365 |
Apply the model number: YJV YJLV
Limit the term :
Environment temperature : 40°C;
Soil temperature : 25°C;
Soil thermal receptivity: 200°C·cm/W °C
Area (mm2) | The long-term admission current-carrying capacity in air(A) | The long-term admission current-carrying capacity in soil(A) | ||||||
10kV 3-core | 35kV 1-core | 10kV 3-core | 35kV 1-core | |||||
Cu | Al | Cu | Al | Cu | Al | Cu | Al | |
25 | 129 | 100 | / | / | 116 | 90 | / | / |
35 | 159 | 123 | / | / | 135 | 105 | / | / |
50 | 182 | 141 | 205 | 159 | 155 | 120 | 175 | 135 |
70 | 223 | 173 | 253 | 196 | 196 | 152 | 222 | 172 |
95 | 276 | 214 | 311 | 241 | 235 | 182 | 265 | 205 |
120 | 317 | 246 | 354 | 275 | 264 | 205 | 295 | 229 |
150 | 359 | 278 | 396 | 307 | 283 | 219 | 312 | 242 |
185 | 413 | 320 | 456 | 354 | 319 | 247 | 352 | 273 |
240 | 481 | 373 | 533 | 413 | 377 | 292 | 418 | 324 |
300 | 552 | 428 | 609 | 472 | 423 | 328 | 467 | 362 |
400 | 646 | 501 | 711 | 551 | 482 | 374 | 530 | 411 |
500 | 740 | 574 | 815 | 631 | 547 | 424 | 602 | 467 |
Apply the model number: BV BLV BVV BLVV
Limit the term : Environment temperature 25°C at air
Area (mm2) | 2-core | 3-core | 4-core | |||
Cu | Al | Cu | Al | Cu | Al | |
1.0 | 12 | / | 11 | / | 10 | / |
1.5 | 16 | / | 15 | / | 13 | / |
2.5 | 24 | 18 | 21 | 16 | 19 | 14 |
4 | 31 | 24 | 28 | 22 | 25 | 19 |
6 | 41 | 31 | 36 | 27 | 32 | 25 |
10 | 56 | 42 | 49 | 38 | 44 | 33 |
16 | 72 | 55 | 65 | 49 | 57 | 44 |
25 | 95 | 73 | 85 | 65 | 75 | 57 |
35 | 120 | 90 | 105 | 80 | 93 | 70 |
50 | 150 | 114 | 132 | 102 | 117 | 90 |
70 | 185 | 145 | 167 | 130 | 148 | 115 |
95 | 230 | 175 | 205 | 158 | 185 | 140 |
120 | 270 | 200 | 240 | 180 | 215 | 160 |
150 | 305 | 230 | 275 | 207 | 250 | 185 |
185 | 355 | 265 | 310 | 235 | 280 | 212 |
Apply the model number: YQ, YQW, YZ, YZW, YC, YCW
Limit the term : Environment temperature 25°C at air
Area(mm2) | cable core number | |||
1-core | 2-core | 3-core | 4-core | |
1.0 | 19 | 17 | 14 | 13 |
1.5 | 24 | 21 | 18 | 18 |
2.5 | 37 | 30 | 25 | 25 |
4 | 47 | 39 | 34 | 34 |
6 | 52 | 51 | 43 | 44 |
10 | 75 | 74 | 63 | 63 |
16 | 112 | 98 | 84 | 84 |
25 | 148 | 135 | 115 | 116 |
35 | 183 | 167 | 142 | 143 |
50 | 226 | 208 | 176 | 177 |
70 | 289 | 259 | 224 | 224 |
95 | 353 | 318 | 273 | 273 |
120 | 415 | 371 | 316 | 316 |
Apply the model number: MZ(E), MZP(E), MC, MCP, MCPJ, MCPT, MCPTJ, MY(E), MYP(E), UYPT(E),MYPTJ(E)
Limit the term : Environment temperature 25°C in air
Lord-core area (mm2) | 1.14kV or lower cable | 6kV or lower cable |
2.5 | 26 | / |
4 | 36 | / |
6 | 46 | 53 |
10 | 64 | 72 |
16 | 85 | 94 |
25 | 113 | 121 |
35 | 138 | 148 |
50 | 173 | 183 |
70 | 215 | 225 |
95 | 260 | 270 |
120 | 308 | / |