| In the cable terminal and cable joint of mine production, mine communication cable control cable to the conductors or connected with other electrical equipment, the cable shall be metal sleeve, an insulating layer to be cut and strip, conductor connection after recovery, mining rubber cable insulating layer and the metal sheath. Unable to guarantee the joint or terminal insulation thickness, compactness and metal sleeve and the cable body structure is the same, the connector and terminal exists in the axial stress, and the electric field stress distribution caused serious distortion. In order to control the axial stress, improve the distortion of the electric field stress, in allowable range, using the principle of capacitance will decrease gradually, the original cable insulation thickness increased gradually, so the insulation of electric field intensity on the surface gradually decreases, the evacuation of power line density, increase free voltage transition interface. |
