FIELD: electricity.
SUBSTANCE: vacuum interrupter has at least two blades, arranged to move the path switching between the open and closed states. The shielding member is disposed around the location area of the vacuum interrupter contacts. At least the inner surface of the screen is provided with a relief structure with a rough surface or ordered. To achieve the technical effect relief structure is designed such that at a predetermined constant or approximately constant volume (Vi) of the screen housing area ratio (S2) Treated surface with an embossed structure to the area (S1) Without raw surface relief structure is greater than 1, i.e. the condition V1≈V2 and S2/S1>1.
EFFECT: increase screening efficiency through the implementation of the screen with a surface that has a high energy absorption.
5 cl, 1 dwg
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