Application:
The product is copper core flexible cable with A.C. rated voltage of 0.66/1.14 or lower for core mine moving equipment purpose.
Executive standard:
Flame retardant mobile flexible cable for coal mine application Part 1 general regulation.
Flame retardant mobile soft cable for coal mine application Part 5 mobile flexible cable with rated voltage of 0.66/1.14 kV or lower.
Test methods and judging rules of flame retardant performance of flame retardant cable for the coal mine application.
Type & Description
Type |
Description
|
Application
|
|
MY-0.38/0.66kV
|
Mobile rubber jacketed flexible cable for coal mine application
|
The cable is used to connect power supply of all kinds of mobile mining equipment under well with rated voltage of 0.38/0.66kV
|
|
MYE-0.38/0.66kV
|
Mobile elastomer flexible cable for coal mine application
|
|
MYP-0.38/0.66kV
|
Mobile shielding rubber jacketed flexible cable for coal mine application
|
|
MYPE-0.38/0.66kV
|
Mobile shielding elastomer flexible cable for coal mine application
|
|
MYP-0.66/1.14kV
|
Mobile shielding rubber jacketed flexible cable for coal mine application
|
The cable is used to connect power supply of all kinds of mobile mining equipment under well with rated voltage of 0.66/1.14kV
|
|
MYPE-0.66/1.14kV
|
Mobile shielding elastomer flexible cable for coal mine application
|
Main technical parameter:
- Conductor DC resistance at 20℃
Resistance of each core conductor shall meet the requirements of class 5 conductor (multi-stranded flexible structure) stipulated in GB/T3956 standard at 20℃
- Insulated resistance at 20℃
Insulated volume resistance ratio of elastomer insulated power core is at least more than 1.0*1013Ω.cm; insulated resistance of rubber insulation power core shall meet the requirements stipulated in the following table.
|
Nominal cross section area of power core (mm2)
|
Insulated resistance at 20℃(MΩ.km)
|
Nominal cross section area of power core(mm2)
|
Insulated resistance at 20℃(MΩ.km)
|
|
4
|
≥200
|
95
|
≥80
|
|
6
|
≥180
|
120
|
≥50
|
|
10
|
≥160
|
150
|
|
16
|
≥120
|
185
|
|
25
|
≥120
|
240
|
|
35
|
≥100
|
300
|
|
50
|
≥100
|
400
|
|
70
|
≥80
|
|
- A.C. voltage test
Insulated power core of cable shall endure following A.C. voltage test without puncture.
Rated voltageU0/U (kV) |
Test voltage (effective value) (kV)
|
Time for giving pressure (min)
|
|
0.38/0.66
|
3.0
|
5
|
|
0.66/1.14
|
3.7
|
4. Flame retardant performance of finished cable can meet all kinds of test requirements stipulated in MT386 standard.
OVERHEAD LINE CONDUCTORS
