Mobile Metal Shielded Rubber Sheathed Flexible Cable with Rated Voltage of 1.9/3.3kV

Scope of application
This product is suitable for power connection of mobile coal mining equipment in underground mines with rated voltage of 1.9/3.3kV.

Executive standard
MT818.1-2009 Cables for Coal Mines Part 1: General requirements for mobile flexible cables for coal mines.
MT818.7-2009 Coal Mine Cable Part 6: Mobile shielded flexible cable with rated voltage 6/10kV and below.

Features
The conductor of the cable adopts the same twisted structure to improve the flexibility of the cable and reduce the outer diameter of the cable; the power core insulation adopts XJ-30A EPDM rubber insulation; the outer sheath adopts self-developed flame retardant The formula and the flame retardant grade meet the requirements of the MT386-2011 "Test Methods and Judgment Rules for Flame Retardant Cables for Coal Mines". The use of the above materials and technologies ensures the safety and reliability of cable operation.

Cable model, name, purpose

Cable working conditions
1. The rated voltage Uo/U is 1.9/3.3kV.
2. The minimum bending radius of the cable is 6 times the cable diameter.
3. The ground core of the cable must be well grounded.
4. Frequency voltage test

The insulated power core can withstand the power frequency voltage test specified in Table 7 without being broken down.

Table 7

Cable structure diagram

1. Power core conductor; 2. Insulation; 3. Metal shield (also used as ground core); 4. Sheath