Flexible Rubber Sheathed Cables MYP-0.66/1.14kV with screen
Flexible Rubber Sheathed Cables with screen MYP for Rated Voltage up to and including 0.66/1.14kV with MA certificate for coal-mining purposes
Application:
Flexible Rubber Sheathed Cable with screen is intended for electrical connecting of kinds underground mobile coalcutter and similar equipmints.
Manufacturing standard:
MT818.5
Service Property Parameter：
1. Rated voltage 0.66/1.14kV.
2. The max temperature of conductor in normal operation is 65℃.
3. The minimum-bending radius of cable is 6 times of cable diameter.
4. Cable with yellow sheath can't be exposed directly in the sun-light for long time.
Type & Description：
| Type | Description |
|---|---|
| MY-0.38/0.66 | Flexible rubber-sheathed cables for coal-mining purposes |
| MYP-0.38/0.66 | Flexible rubber-sheathed cables with screen for coal-mining purposes |
| MYP-0.66/1.14 | Flexible rubber-sheathed cables with screen for coal-mining purposes |
Structural Sketch：
Main Technical Indexes：
1. 20℃ D.C resistance shall comply with the stipulations of GB/T3956.
2. Insulation resistance should comply with the stiputations in the table.
| Nominal section area mm² | Min. insulation resistance at 20°C MΩ·km | Nominal section area mm² | Min. insulation resistance at 20°C MΩ·km |
|---|---|---|---|
| 4 | 200 | 35 | 100 |
| 6 | 180 | 50 | 100 |
| 10 | 160 | 70 | 80 |
| 16 | 120 | 95 | 80 |
| 25 | 120 | 120-400 | 50 |
3.Voltage test should comply with the stipulations in the table
| Insulation core type | Rated voltage U0U(kV) | AC test voltage(kV) | Test time(min) |
|---|---|---|---|
| Power core | 0.38/0.66 | 3.0 | 5 |
| 0.66/1.14 | 3.7 | 5 |
4. Flame retardance test:The methods of test and requiremenis shall be those specified in MT386.
| MY-0.38/0.66 | |||||
|---|---|---|---|---|---|
| No.of cores x section area (mm²) | Nominal thickness(mm) | Outer diameter of cable(mm) | Weight for reference kg/km | Ampacity at 20℃ (A) | |
| Insulation | Sheath | ||||
| 1x50 | 1.6 | 2.4 | 18.7~20.5 | 820 | 226 |
| 1x70 | 1.6 | 2.6 | 20.9~23.0 | 1050 | 289 |
| 1x95 | 1.8 | 2.8 | 24.2~26.6 | 1360 | 353 |
| 1x120 | 1.8 | 3.0 | 26.4~29.0 | 1680 | 415 |
| 1x150 | 2.0 | 3.2 | 30.1~33.1 | 2050 | 475 |
| 1x185 | 2.2 | 3.4 | 32.7~35.9 | 2480 | 540 |
| 1x240 | 2.4 | 3.5 | 35.3~38.8 | 3130 | 637 |
| 1x300 | 2.6 | 3.6 | 40.0~43.3 | 3870 | 728 |
| 1x400 | 2.8 | 3.8 | 43.4~47.7 | 5119 | 970 |
| MY-0.38/0.66；MYP-0.38/0.66 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No.of cores x section area (mm²) | Nominal thickness(mm) | Outer diameter of cable(mm) | Weight for reference kg/km | Ampacity at 20℃ (A) | |||||
| Power core | Earth core | Power core insulation | Sheath | MY-0.38/0.66 | MYP-0.38/0.66 | MY-0.38/0.66 | MYP-0.38/0.66 | MY-0.38/0.66 | MYP-0.38/0.66 |
| 3x4 | 1x4 | 1.4 | 3.5 | 20.9~23.0 | 22.9~25.2 | 720 | 780 | 38 | 39 |
| 3x6 | 1x6 | 1.4 | 3.5 | 22.9~25.1 | 24.7~27.2 | 900 | 970 | 46 | 49 |
| 3x10 | 1x10 | 1.6 | 4.0 | 27.8~30.6 | 29.7~32.7 | 1400 | 1500 | 64 | 68 |
| 3x16 | 1x10 | 1.6 | 4.0 | 30.3~33.3 | 32.2~35.4 | 1640 | 1750 | 85 | 90 |
| 3x25 | 1x16 | 1.8 | 4.5 | 36.4~40.1 | 38.3~41 | 2330 | 2470 | 121 | 112 |
| 3x35 | 1x16 | 1.8 | 4.5 | 40.5~44.6 | 42.4~46.6 | 2720 | 2870 | 145 | 146 |
| 3x50 | 1x16 | 2.0 | 5.0 | 45.5~50.1 | 47.4~51.0 | 3740 | 3950 | 180 | 181 |
| 3x70 | 1x25 | 2.0 | 5.0 | 51.5~55.1 | 52.4~57.1 | 4650 | 4870 | 220 | 226 |
| MYP-0.66/1.14 | ||||||
|---|---|---|---|---|---|---|
| No.of cores x section area (mm²) | Nominal thickness(mm) | Outer diameter of cable(mm) | Weight for reference kg/km | Ampacity at 20℃ (A) | ||
| Power core | Earth core | Power core insulation | Sheath | MYP-0.66/1.14 | MYP-0.66/1.14 | MYP-0.66/1.14 |
| 3x10 | 1x10 | 1.8 | 4.5 | 31.7~34.8 | 1670 | 68 |
| 3x16 | 1x10 | 1.8 | 4.5 | 34.2~37.6 | 1930 | 90 |
| 3x25 | 1x16 | 2.0 | 5.0 | 40.3~44.3 | 2630 | 120 |
| 3x35 | 1x16 | 2.0 | 5.0 | 44.4~48.8 | 3040 | 145 |
| 3x50 | 1x16 | 2.2 | 5.5 | 51.5~54.6 | 4370 | 180 |
| 3x70 | 1x25 | 2.2 | 5.5 | 53.9~59.3 | 5155 | 225 |
| 3x95 | 1x25 | 2.4 | 6.0 | 62.1~68.1 | 6760 | 276 |
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