Flame Retardant Mobile Flexible Cable with Rated Voltage of 0.66/1.14kV or Lower for Coal Mine Application

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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:

  1. 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℃

  1. 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

 

  1. 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.