Flexible Rubber-Sheathed Light-Duty Cables MYQ-0.3/0.5kV

Flexible Rubber-Sheathed Light-Duty Cables MYQ-0.3/0.5kV MT/T 818.9 for down-well mobile coalcutter equipments & ground mining machine

Application

Flexible Rubber-Sheathed Light-Duty Cables MYQ-0.3/0.5kV is intended for electrical connection of down-well mobile coalcutter equipments and ground mining machine with rated voltage up to and including 0.3/0.5kV.

Manufacturing standard

MT/T 818.9-2009

Service Property Parameter

1. Rated voltage U0/U is 0.3/0.5kV.
2. The max,temperature of conductor in normal operation is 65℃.
3. The minimum-bending radius of cable is 6 times of cable diameter.

Type & Description

Type Description
MYQ-0.3/0.5kV Flexible Rubber-sheathed Light-duty Cables for Mining Purpose

Structural Sketch

Main Technical Indexes

1. 20℃ D.C conductor resistance shall comply with thestipulation of GB/3956.
2. Insulation resistance of power core should be not lessthan 160MΩ·km.
3. Voltage test: The cable should pass voltage test of A.C. 2kV lasted 5 min, No breakdown of the insulation shall occour.
4. Flame retardance test: The methods of test and requirements shall be those specified in MT386.

Specifications & structure size
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 Insulation Sheath MYQ-0.3/0.5kV MYQ-0.3/0.5kV MYQ-0.3/0.5kV
2×1.0 0.6 1.5 8.1~8.9 113 16
2×1.5 0.8 1.5 9.4~10.3 146 20
2×2.5 1.0 1.5 11.5~12.7 199 28
3×2.5 0.6 1.5 8.4~9.0 134 13
3×1.0 0.8 1.5 9.9~10.9 178 17
3×1.5 1.0 1.5 12.1~13.4 249 24
4×2.5 0.6 1.5 9.1~10.1 158 12
4×1.0 0.8 1.5 10.7~11.8 213 17
4×1.5 1.0 2.0 14.3~15.7 353 24
7×2.5 0.6 1.5 10.6~11.7 226 11
7×1.0 0.8 2.0 13.6~15.0 362 16
7×1.5 1.0 2.0 16.8~18.4 517 32
12×2.5 0.6 2.0 14.6~16.0 395 11
12×1.0 0.8 2.5 18.3~20.1 613 16
12×1.5 1.0 2.5 22.7~24.9 879 32

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