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Flame-retardant Rubber Sheathed Cables for Mining Purposes
Rubber-sheathed Flexible Portable Cables of Rated Voltage up to 6/10kV
- Share:
1. Application
This product is used as power supply connection cable for portable mining equipment of rated voltage 6/10kv and below, and the lowest ambient temperature is -20℃.2. Guide to Use
The max. conductor working temperature in normal use is 90℃ and its min. bend radius is 6 times cable diameter.
3. Code, Description and Usage
| Code | Description | Usage |
| MYP-3.6/6 | Flexible rubber-sheathed cables with screen for mining use | Power supply connection cable for 3.6/6kV portable mining euquipment |
| MYPT-3.6/6 | Flexible rubber-sheathed cables with metallic screen for mining use | Power supply connection cable for 3.6/6kV portable mining euquipment |
| MYPT-6/10 | Flexible rubber-sheathed cables with metallic screen for mining use | Power supply connection cable for 6/10kV portable mining euquipment |
4. Sectional Drawing
5. Technical Particulars
1) MYP-3.6/6
|
No. of Cores * Sectional Area (mm2) |
Nominal Insulation (mm) | Overall Diameter (mm) | ||
| Power Core | Earth Core | Power Core Insulation | Oversheath | MYP-3.6/6kV |
| 3*16 | 1*16 | 4.0 | 5.5 | 48.0-55.0 |
| 3*25 | 1*16 | 4.0 | 5.5 | 51.0-58.0 |
| 3*35 | 1*16 | 4.0 | 5.5 | 54.0-61.5 |
| 3*50 | 1*25 | 4.0 | 5.5 | 58.0-66.0 |
| 3*70 | 1*25 | 4.0 | 6.0 | 64.0-72.0 |
| 3*95 | 1*35 | 4.0 | 6.0 | 68.5-77.0 |
| 3*120 | 1*35 | 4.0 | 6.0 | 71.5-80.0 |
| 3*150 | 1*50 | 4.0 | 6.0 | 76.0-85.0 |
2) MYPT-3.6/6, MYPT-1.9/3.3
|
No. of Cores * Sectional Area (mm2) |
Nominal Thickness (mm) | Overall Diameter (mm) | |||||
| Power Core Insulation | Oversheath | ||||||
| Power Core | Ground Core | MYPT-3.6/6 | MYPT-1.9/3.3 | MYPT-3.6/6 | MYPT-1.9/3.3 | MYPT-3.6/6 | MYPT-1.9/3.3 |
| 3*16 | 3*16/3 | 4.0 | 5.5 | 49.0-56.0 | |||
| 3*25 | 3 16/3 | 4.0 | 5.5 | 51.5-58.5 | |||
| 3*35 | 3 16/3 | 4.0 | 2.8 | 5.5 | 6 | 54.5-62.0 | 47.0-54.0 |
| 3*50 | 3 25/3 | 4.0 | 2.8 | 5.5 | 6 | 58.5-66.0 | 50.5-57.5 |
| 3*70 | 3 25/3 | 4.0 | 3.0 | 6.0 | 6 | 64.0-72.0 | 56.0-63.5 |
| 3*95 | 3 35/3 | 4.0 | 3.0 | 6.0 | 6 | 68.0-77.0 | 60.5-67.5 |
| 3*120 | 3 35/3 | 4.0 | 3.2 | 6.0 | 6 | 71.5-79.5 | 64.5-72.0 |
| 3*150 | 3 50/3 | 4.0 | 3.2 | 6.0 | 6 | 75.5-84.5 | 68.5-76.5 |
|
No. of Cores * Sectional Area (mm2) |
Nominal Insulation (mm) | Overall Diameter (mm) | ||
| Power Core | Earth Core | Power Core Insulation | Oversheath | MYP-6/10 |
| 3*16 | 1*16/3 | 5.0 | 6.0 | 54.0-61.0 |
| 3*25 | 1*16/3 | 5.0 | 6.0 | 57.0-64.5 |
| 3*35 | 1*16/3 | 5.0 | 6.0 | 59.5-67.5 |
| 3*50 | 1*25/3 | 5.0 | 6.0 | 63.5-72.0 |
| 3*70 | 1*35/3 | 5.0 | 6.0 | 68.0-76.5 |
| 3*95 | 1*50/3 | 5.0 | 6.0 | 72.5-81.0 |
| 3*120 | 1*50/3 | 5.0 | 6.0 | 75.5-84.5 |
| 3*150 | 1*50/3 | 5.0 | 6.0 | 79.5-89.0 |
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) |
| 16 | ≤1.24 | 70 | ≤0.277 |
| 25 | ≤0.795 | 95 | ≤0.210 |
| 35 | ≤0.565 | 120 | ≤0.164 |
| 50 | ≤0.393 | 150 | ≤0.132 |
2) Insulation Resistance
| Power Core Sectional area (mm2) | Insulation Resistance at 20℃ (MΩ·kM) | ||
| Rated Voltage 3.6/6KV | Rated Voltage 6/10KV | Rated Voltage 1.9/3.3KV | |
| 16 | ≥750 | ≥850 | |
| 25 | ≥650 | ≥750 | |
| 35 | ≥550 | ≥700 | ≥500 |
| 50 | ≥500 | ≥600 | ≥400 |
| 70 | ≥450 | ≥550 | ≥400 |
| 95 | ≥400 | ≥450 | ≥350 |
| 120 | ≥350 | ≥450 | ≥300 |
| 150 | ≥350 | ≥400 | ≥300 |
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) The flame-retardant performance of the cable meets all requirements of burn test in standard MT 386-1995.
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