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Flame retardant cable technology for high voltage coal mine

Information Source:Henan Huadong Cable Co., Ltd Release date:2014-06-19

High voltage flame retardant cable for coal mine technology can be summarized as follows:

1) with pre twisted cage winch and disk twister;

2) should be used for super smooth, semi conductive shielding material;

3) should be used to clean insulation material, and has the corresponding impurity detection device;

4) automatic feeding device has the ultra clean material (to eliminate environmental pollution);

5) with conductor preheating device (increase the output and change the thermal mechanical stress);

6) high temperature control precision and high pressure (screw extruder for extrusion temperature is 80 ℃, high temperature control precision is ± 1 ℃, screw pressure greater than 200MPa);

7) using three layer co extrusion equipment with high efficiency filter (filter is greater than 0.03mm of impurity)

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