Dual-side insulation short piece

The utility model discloses a dual-side insulation short piece, which comprises an upper joint and a lower joint, wherein a spigot component of the upper joint is connected with a contact pin component of the lower joint by a lead; the upper joint is connected with the lower joint by matched taper threads; and a glass fiber reinforced plastic cloth is coated on the taper threads. The utility model has the beneficial effects that the dual-side insulation short piece adopts the glass fiber reinforced plastic cloth soaked with high-temperature epoxy glue for coating insulation; the insulativity between the upper joint and the lower joint is good; the technique is simple, and the finished product ratio is high; and the insulativity can not be reduced after multiple times of use; in addition, the short piece has convenient maintenance, low use cost and good sealing property, and is the regeneration product of the traditional dual-side insulation short piece.