Arc chute and load break switch including same

An arc chute comprising:

• a frame part formed in a cylindrical shape;
• two cover parts each having one side disposed adjacent to an outer circumferential surface of the frame part, spaced apart from each other, and overlapping each other in an axial direction of the frame part;
• and
• an arc grid disposed between the two cover parts, coupled to each of the two cover parts, and disposed at a predetermined interval along a predetermined curve,
• wherein the cover parts are formed in a plate shape, and
• the predetermined curve has a radius of curvature equal to a radius of curvature of the frame part.

A load break switch comprising:

• an opening and closing part including a fixed terminal part and a movable terminal part;
• a frame part formed in a cylindrical shape and accommodating a portion of the fixed terminal part;
• a rotating shaft rotatably coupled to the frame part, and connected to the movable terminal part to rotate together with the movable terminal part;
• and
• an arc chute disposed adjacent to an outer circumference of the frame part,
• wherein the arc chute comprises:
• two cover parts spaced apart from each other, and overlapping each other in an axial direction of the frame part;
• and
• an arc grid disposed between the two cover parts facing each other, coupled to each of the two cover parts, and spaced apart from the fixed terminal part, and
• the cover parts are formed in a plate shape extending in circumferential and radial directions of the frame part, and has one side in contact with an outer circumferential surface of the frame part, and
• the one side is formed in a shape corresponding to the outer circumference of the frame part, and another side different from the one side is located adjacent to the fixed terminal part.