Insulating end in Y -type top

The utility model discloses an insulating end in Y -type top, including the Y -type terminal, the becket is curled into to Y -type terminal one end, the one end of becket is installed in insulation support, insulation support includes first section and second section, the extension section no. 1 that a diameter reduces is gradually connected to first section, the extension section no. 2 that a diameter reduces is gradually connected to the second section, extend duan yiyu and extend two connections of section, the becket with extend two cooperations of section and becket internal diameter and be less than or equal to the minimum diameter who extends section no. 2, through extending section no. 1 after the wire gets into from first section, because it reduces gradually to extend a section diameter, consequently, can concentrate on the wire that scatters together, make things convenient for inserting of wire, the diameter that extends section no. 2 in addition reduces gradually, the becket with extend two cooperations of section and becket internal diameter and be less than or equal to the minimum diameter who extends section no. 2, can guarantee can the not contradict wall of becket of wire, consequently can prevent the wire damage of buckling.