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Flame-retardant Rubber Sheathed Cables for Mining Purposes
Drill Cable for Mining Use of Rated Voltage 0.3/0.5KV
- Share:
1. Application
This product is used as power supply connection cable of mining drills of rated voltage 0.3/0.5kV and below.
The max. conductor temperature in normal use is 65℃, and its min. bend radius is 6 times cable diameter.
| Code | Description |
| MZ-0.3/0.5 | Drill cable for mining use |
| MZP-0.3/0.5 | Screened drill cable for mining use |
4. Sectional Drawing
5. Technical Particulars
| No. of Cores * Sectional Area (mm2) |
Conductor Strands/Dia. (mm) |
Insulation Thickness (mm) |
Sheath Thickness (mm) |
Overall Diameter (mm) | |||||
| MZ-0.3/0.5 | MZP-0.3/0.5 | ||||||||
| Power Core | Earth Core | Pilot Core | min | min | min | min | |||
| 3*2.5 | 1*2.5 | 77/0.20 | 1.0 | 3.5 | 16.5 | 19.5 | 19.5 | 23.0 | |
| 3*4 | 1*4 | 126/0.20 | 1.0 | 3.5 | 17.5 | 21.0 | 21.0 | 24.0 | |
| 3*2.5 | 1*2.5 | 1*2.5 | 77/0.20 | 1.0 | 3.5 | 17.5 | 21.0 | 21.0 | 24.5 |
| 3*4 | 1*4 | 1 4 | 126/0.20 | 1.0 | 3.5 | 19.0 | 23.0 | 22.5 | 26.5 |
6. Technical Performance
1) Conductor Resistance
| Power Core Sectional Area (mm2) | Conductor DC Resistance at 20℃ (Ω/km) | Power Core Sectional Area (mm2) | Conductor DC Resistance at 20℃ (Ω/km) |
| 2.5 | ≤8.82 | 4.0 | ≤5.39 |
2) Insulation DC resistance of power core at 20℃ is over 350 MΩ·kM.
3) Sheath tensile strength is over 11.0MPa, and has an elongation of over 250% at break.
4) 0.3/0.5kV cables can withstand a 2.0kV/12Min voltage test and no breakdown shall occur.
5) The flame-retardant performance of the cable meets all requirements of burn test in standard MT 386-1995.
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