Insulation device and fuse cutout having the same

A fuse cutout, comprising an insulation device used as an insulator thereof, and the insulation device comprising:

• a cylindrical insulating body;
• a plurality of first insulation sheds, wherein each said first insulation shed is a circular fin extending radially outwardly from a side surface of the cylindrical insulating body;
• an extending cylindrical insulating body, being horizontally connected to the cylindrical insulating body;
• at least one second first insulation sheds, wherein the second insulation shed is also a circular fin that extends radially outwardly from a side surface of the extending cylindrical insulating body;
• and
• a first structure assembly, comprising:
• a first rod-shaped insulation structural member, being buried in the cylindrical insulating body;
• a center connecting unit, comprising a first ferrule sleeved on a center section of the first rod-shaped insulation structural member and an extending ferrule horizontally connected to the first ferrule;
• an upper connecting unit, comprising a second ferrule sleeved on an upper section of the first rod-shaped insulation structural member and a first connection member extending from a side surface of the second ferrule;
• and
• a lower connecting unit, comprising a third ferrule sleeved on a lower section of the first rod-shaped insulation structural member and a second connection member extending from a side surface of the third ferrule;
• wherein the first ferrule, the second ferrule and the third ferrule are buried in the cylindrical insulating body, and the extending ferrule is buried in the extending cylindrical insulating body.