Rated voltage1.9/3.3kV flexible cable for coal-mining

(MT818.2-2009)

1.Application

It is suitable for rated voltage Uo/U 1.9/3.3KV coalmining machine and the similar equipments.

2.Application conditions

The long-term permissible working temperature of cable conductor for rated voltage up to and including 0.38/0.66kV is 90 ,Black jacket.

The long-term permissible working temperature of cable conductor for rated voltage up to and including 0.66/1.44kV is 90 ,Yellow jacket . and that of the cable conductor of rated voltage1.9/3.3kV is 90℃ It’s smallest bending radiusis 6 times than the size of cable diameter. The yellow sheathed cables can’t be exposed in the sun for a long time.

3. Model and names

4. Structure diagram

5. Specification size

Rated voltage 0.66/1.14kV cable dimensions

Rated voltage 0.38/0.66kV cable dimensions

 Rated voltage 1.9/3.3kV cable dimensions

6. Technical parameter

Finished DC resistance

Finished insulation resistance

 a. Conductor temperature of  90℃ to allow work;

b. it has the anti-bending characteristics;

c. it has the anti-extrusion and anti-pressure characteristics;

d. Insulation tensile strength greater than 6.5Mpa, more than 200% elongation;

e. Max anti-bending 11.0 N/mm2, Max anti-tensible force>250%;

f. No damage under rated voltage 0.38/0.66kV for 3.0kV/5min,0.66/1.14kV for 3.7kV/5min, 1.9/3.3kV for 6.8kV/0.5min respectively;

g. It complies with fire-proof feature based on MT386-1995.