Novel insulating sheath suitable for power equipment to be installed without power cut

The utility model provides a novel insulating sheath suitable for power equipment installation without power cut, which comprises an inlet wire insulating sheath, a barrier gate insulating sheath and an outlet wire insulating sheath, and butt joint edges are arranged at the edges of two sides of bottom openings of the inlet wire insulating sheath, the barrier gate insulating sheath and the outlet wire insulating sheath. The butt-joint edges at the opening edges on the two sides are closed in a butt-joint mode through butt-joint pieces, the butt-joint pieces are multi-section hook-and-loop fasteners, the multi-section hook-and-loop fasteners comprise multi-section thorn faces and multi-section loop faces, and the multi-section thorn faces and the multi-section loop faces are installed on the butt-joint edges on the two sides respectively. The insulating sheath can better adapt to an inlet wire power connection end, a barrier gate and an outlet wire power connection end of the vacuum circuit breaker, is high in