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Flame-retardant Rubber Sheathed Cables for Mining Purposes
Flexible Rubber Sheathed Coal Cutter Cables for Rated Voltage up to 1.9/3.3kV
- Share:
1. Application
This product is used as power supply connection cable for coal cutters or similar equipment of rated voltage 1.9/3.3kV and below.
The max. conductor temperature of 0.38/0.66kV cable in normal use is 90℃ and the sheath is black.
The max. conductor temperature of 0.66/1.14kV cable in normal use is 90℃ and the sheath is yellow.
The max. conductor temperature of 1.9/3.3kV cable in normal use is 90℃ and the sheath is black.
The min. bend diameter of the cables is 6 times cable diameter and the cable with yellow sheath can not be exposed to sunlight for a long time.
3. Code, Description and Usage
Code | Description | Usage |
MC-0.38/0.66 | 0.38/0.66 kV rubber sheathed flexible coal cutter cable | Power supply connection cable for coal cutters and similar equipment of rated voltage 0.38/0.66 kV |
MCP-0.38/0.66 | 0.38/0.66 kV rubber sheathed flexible coal cutter cable with screen | Power supply connection cable for coal cutters and similar equipment of rated voltage 0.38/0.66 kV |
MCP-0.66/1.14 | 0.66/1.14 kV rubber sheathed flexible coal cutter cable with screen | Power supply connection cable for coal cutters and similar equipment of rated voltage 0.66/1.14 kV |
MCP-1.9/3.3 | 1.9/3.3 kV rubber sheathed flexible coal cutter cable with screen | Power supply connection cable for coal cutters and similar equipment of rated voltage 1.9/3.3 kV |
4. Sectional Drawing
5. Technical Particulars
1) MC-0.38/0.66, MCP-0.38/0.66
No. of Cores * Sectional Area (mm2) |
Power Core Insulation Thickness (mm) |
Sheath Thickness (mm) |
Overall Diameter (mm) | ||||
MC-0.38/0.66 | MCP-0.38/0.66 | ||||||
Power Core | Earth Core | Min. | Max. | Min. | Max. | ||
3*6 | 1*4 | 1.6 | 4.5 | 29.1 | 34.1 | 33 | 38 |
3*25 | 1*6 | 1.8 | 5.5 | 36 | 41 | 39 | 45 |
3*35 | 1*6 | 1.8 | 5.5 | 39 | 45 | 42.5 | 48.5 |
3*50 | 1*10 | 2.0 | 5.5 | 44 | 50.5 | 47.5 | 54.5 |
3*70 | 1*16 | 2.2 | 6.0 | 50 | 57.5 | 53 | 60.5 |
3*95 | 1*25 | 2.2 | 6.0 | 56 | 63.1 | 59.5 | 67 |
3*120 | 1*35 | 2.4 | 6.0 | 60.5 | 68.5 | 63.5 | 72 |
2) MCP-0.66/1.14
No. of Cores * Sectional Area (mm2) |
Power Core Insulation Thickness (mm) |
Sheath Thickness (mm) |
Overall Diameter (mm) | ||||||
MCP-0.66/1.44 | |||||||||
Power Core |
Earth Core (Type A) |
Earth Core (Type B) |
Type A | Type B | |||||
Type A | Type B | Min. | Max. | Min. | Max. | ||||
3*25 | 1*6 | 2.0 | 6 | 29.1 | 34.1 | 33 | 38 | ||
3*35 | 1*6 | 3*10/3 | 2.0 | 6 | 7 | 36 | 41 | 39 | 45 |
3*50 | 1*10 | 3*16/3 | 2.0 | 6 | 7.5 | 39 | 45 | 42.5 | 48.5 |
3*70 | 1*16 | 3*25/3 | 2.2 | 7 | 7.5 | 44 | 50.5 | 47.5 | 54.5 |
3*95 | 1*25 | 3*25/3 | 2.4 | 7 | 7.5 | 50 | 57.5 | 53 | 60.5 |
3*120 | 1*35 | 3*35/3 | 2.6 | 7 | 7.5 | 56 | 63.1 | 59.5 | 67 |
3*150 | 1*35 | 3*50/3 | 2.6 | 7 | 7.5 | 60.5 | 68.5 | 63.5 | 72 |
3) MCP-1.9/3.3
No. of Cores * Sectional Area (mm2) |
Power Core Insulation Thickness (mm) |
Sheath Thickness (mm) |
Overall Diameter (mm) | ||||||
MCP-1.9/3.3 | |||||||||
Power Core |
Earth Core (Type A) |
Earth Core (Type B) |
Type A | Type B | |||||
Type A | Type B | Min. | Max. | Min. | Max. | ||||
3*25 | 1*6 | 2.8 | 6 | 44.5 | 51.0 | ||||
3*35 | 1*6 | 3*10/3 | 2.8 | 6 | 7 | 48.0 | 54.5 | 59 | 64 |
3*50 | 1*10 | 3*16/3 | 2.8 | 6 | 7.5 | 54.0 | 61.5 | 63 | 69 |
3*70 | 1*16 | 3*25/3 | 3.0 | 7 | 7.5 | 60.0 | 67.0 | 68 | 775 |
3*95 | 1*25 | 3*25/3 | 3.0 | 7 | 7.5 | 65.0 | 72.5 | 69 | 78 |
3*120 | 1*35 | 3*35/3 | 3.2 | 7 | 7.5 | 69.5 | 77.5 | 74 | 84.5 |
3*150 | 1*35 | 3*50/3 | 3.2 | 7 | 7.5 | 74.0 | 82.5 | 78.5 | 88 |
6. Technical Performance
1) The conductor resistance shall meet the following requirements
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) |
4 | ≥5.09 | 35 | ≥0.565 |
6 | ≥3.39 | 50 | ≥0.393 |
10 | ≥1.95 | 70 | ≥0.277 |
16 | ≥1.24 | 95 | ≥0.210 |
25 | ≥0.795 | 120 | ≥0.164 |
2) The insulation resistance meets the following requirements
Cores |
Nominal Sectional Area (mm2) |
Insulation Resistance at 20℃ (MΩ·kM) | |
0.66/1.14kV and below | 1.9/3.3kV and below | ||
Power Core | 16 | ≥350 |
|
25 | ≥300 | ≥450 | |
35 | ≥250 | ≥400 | |
50 | ≥250 | ≥350 | |
70 | ≥200 | ≥300 | |
95 | ≥200 | ≥250 | |
120 | ≥200 | ≥250 | |
150 | ≥180 | ≥250 | |
Earth Core | 2.5/4/6/10 | ≥100 | ≥100 |
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; 1.9/3.3kV cables can withstand a 6.8kV/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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