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Flame-retardant Rubber Sheathed Cables for Mining Purposes
Flexible Rubber-sheathed Portable Mining Cables for Rated Voltage up to 0.66/1.14kV
- Share:
This product is used as power supply connection cables of portable mining equipment of rated voltage 0.66/1.14kV and below.
The conductor temperature in normal use is 65℃ and the min. bend radius of the cables is 6 times cable diameter. The cable with yellow sheath can not be exposed to sunlight for a long time.
| Code | Description | Usage |
| MY-0.38/0.66 | Rubber sheathed flexible portable cable for mining use | Power supply connectiion cable for 0.38/0.66kV portable mining equipment |
| MYP-0.38/0.66 | Rubber sheathed screened flexible portable cable for mining use | Power supply connectiion cable for 0.38/0.66kV portable mining equipment |
| MYP-0.66/1.14 | Rubber sheathed screened flexible portable cable for mining use | Power supply connectiion cable for 0.66/1.14kV portable mining equipment |
4. Sectional Drawing
5. Technical Particulars
1) MY-0.38/0.66
|
No. of Cores * Sectional Area (mm2) |
Nominal Thickness (mm) |
Overall Diameter (mm) |
No. of Cores * Sectional Area (mm2) |
Nominal Thickness (mm) |
Overall Diameter (mm) |
||
| Insulation | Sheath | Insulation | Sheath | ||||
| 1*35 | 1.8 | 2.2 | 16.0-19.5 | 1*50 | 2.4 | 3.4 | 28.0-33.0 |
| 1*50 | 2.0 | 2.4 | 18.5-22.5 | 1*185 | 2.4 | 3.4 | 30.5-35.5 |
| 1*70 | 2.0 | 2.6 | 21.0-25.0 | 1*240 | 2.6 | 3.5 | 34.0-39.5 |
| 1*95 | 2.2 | 2.8 | 23.5-28.5 | 1*300 | 2.6 | 3.6 | 37.0-43.0 |
| 1*120 | 2.2 | 3.0 | 25.5-29.5 | 1*400 | 2.8 | 3.8 | 42.0-48.0 |
2) MY-0.38/0.66, MYP-0.66/1.14
| No. of Cores * Sectional Area (mm2) | Nominal Thickness (mm) | Overall Diameter (mm) | |||
| Power Core | Earth Core | Insulation | Sheath | MY-0.38/0.66 | MYP-0.38/0.66 |
| 3*2.5 | 1*2.5 | 1.2 | 3.0 | 16.0-18.0 | 19.0-22.0 |
| 3*4 | 1*4 | 1.4 | 3.5 | 19.0-22.5 | 22.0-26.5 |
| 3*6 | 1*6 | 1.4 | 3.5 | 21.0-25.5 | 24.0-29.0 |
| 3*10 | 1*10 | 1.6 | 4.0 | 25.0-30.0 | 28.0-32.5 |
| 1*6 | |||||
| 3*16 | 1*10 | 1.6 | 4.0 | 27.5-32.0 | 30.5-35.5 |
| 1*6 | |||||
| 3*25 | 1*16 | 1.8 | 4.5 | 32.5-37.5 | 35.5-41.0 |
| 1*10 | |||||
| 3*35 | 1*16 | 1.8 | 4.5 | 33.5-41.0 | 38.5-44.5 |
| 1*10 | |||||
| 3*50 | 1*16 | 2.0 | 5.0 | 41.5-47.5 | 44.5-51.0 |
| 3*70 | 1*25 | 2.0 | 5.0 | 46.0-53.0 | 49.0-56.0 |
| 3*95 | 1*25 | 2.2 | 5.5 | 52.5-59.8 | 55.5-63.0 |
| 3*120 | 1*35 | 2.2 | 5.5 | 56.0-63.5 | 59.0-67.0 |
| 3*150 | 1*35 | 2.4 | 6.0 | 62.5-70.5 | 65.5-74.0 |
| 3*180 | 1*50 | 2.6 | 6.0 | 64.4-75.0 | 67.8-76.5 |
3) MYP-0.66/1.14
| No. of Cores * Sectional Area (mm2) | Nominal Thickness (mm) | Overall Diameter (mm) | ||
| Power Core | Earth Core | Insulation | Sheath | MYP-0.66/1.14 |
| 3*4 | 1*4 | 1.6 | 4.0 | 23.0-25.0 |
| 3*6 | 1*6 | 1.6 | 4.0 | 24.0-27.0 |
| 3*10 | 1*10 | 1.8 | 4.5 | 30.0-35.0 |
| 3*16 | 1*10 | 1.8 | 4.5 | 32.5-37.5 |
| 3*25 | 1*16 | 2.0 | 5.0 | 37.5-43.0 |
| 3*35 | 1*16 | 2.0 | 5.0 | 40.5-46.5 |
| 3*50 | 1*16 | 2.2 | 5.5 | 46.5-53.0 |
| 3*70 | 1*25 | 2.2 | 5.5 | 51.0-58.0 |
| 3*95 | 1*25 | 2.4 | 6.0 | 57.5-65.0 |
| 3*120 | 1*35 | 2.4 | 6.0 | 61.0-69.0 |
| 3*150 | 1*50 | 2.6 | 6.0 | 66.5-75.0 |
| 3*185 | 1*70★ | 2.8 | 6.0 | 69.5-75.5 |
6. Technical Performance
1) Conductor Resistance
| Power Core Sectional Area (mm2) | Max. Conductor DC Resistance at 20℃ (Ω/km) | Power Core Sectional Area (mm2) | Max. Conductor DC Resistance at 20℃ (Ω/km) |
| 2.5 | 7.98 | 70 | 0.272 |
| 4 | 4.95 | 95 | 0.206 |
| 6 | 3.30 | 120 | 0.161 |
| 10 | 1.91 | 150 | 0.129 |
| 16 | 1.21 | 185 | 0.106 |
| 25 | 0.780 | 240 | 0.0801 |
| 35 | 0.554 | 300 | 0.0641 |
| 50 | 0.386 | 400 | 0.0495 |
2) Insulation Resistance
| Power Core Sectional Area (mm2) | Min. Insulation Resistance at 20℃ (MΩ·km) | Power Core Sectional Area (mm2) | Min. Insulation Resistance at 20℃ (MΩ·km) |
| 2.5 | 600 | 70 | 200 |
| 4 | 600 | 95 | 200 |
| 6 | 450 | 120 | 200 |
| 10 | 400 | 150 | 180 |
| 16 | 350 | 185 | 180 |
| 25 | 300 | 240 | 160 |
| 35 | 250 | 300 | 140 |
| 50 | 250 | 400 | 140 |
3) Max. conductor temperature in normal use: 90℃.
4) Insulation tensile strength is over 6.5MPa, and has an elongation of over 200% at break.
5) Sheath tensile strength is over 11.0MPa, and has an elongation of over 250% at break.
6) 0.38/0.66kV cables can withstand a 3.0kV/5Min voltage test and no breakdown shall occur; 0.66/1.14kV cables can withstand a 3.7kV/5Min voltage test and no breakdown shall occur.
7) The flame-retardant performance of the cable meets all requirements of burn test in standard MT 386-1995.
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