Low-voltage alternating-current and direct-current wall bushing and preparation method thereof
A kind of wall bushing, AC and DC technology, applied in cable/conductor manufacturing, conductor/cable insulation, cable and other directions, can solve the development direction that cannot meet the miniaturization of electrical equipment, complex capacitor core structure, complex process flow and other problems, to achieve the effect of convenient transportation and installation, reducing size and reducing environmental pollution
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[0054] The present embodiment also provides a method for preparing low voltage DC wall bushing comprising the steps of:
[0055] 1) using the multilayer coextrusion method to obtain main insulation;
[0056] 2) high temperature-cure method or a vacuum casting method to obtain an electrode extension layer 4, and the outer electrode layer is attached to the extension of the main insulation 4;
[0057] 3) an outer edge of the flange 2 is chamfered, the flange 2 is attached to the outer layer 4 of the electrode extension;
[0058] 4) a plurality of outer insulating shed 9 mounted to the outside of the main insulation of the axial sides of the flange 2.
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