Explosion -proof electric gourd is divided into steel wire rope explosion -proof electric gourd and ring chain explosion -proof electric gourd. The operating motor of explosion -proof electric gourds is explosion -proof type, and the grade is EXDIIC4. Electric motor maintenance level IP55, insulation level F. Compared with IP44 and general steel wire ropes, the insulation level is B. Use explosion -proof docked equipment. The rope of the hook wheel is made of copper. On the basis of this, the explosion -proof undercourse is changed to stainless steel hook. Compared with rope gourd, explosion -proof gourd electrical boxes are large, heavy in weight, handle is consolidated, and waterproof functions are good. The explosion -proof fire -cutting limiter was used. There are explosion -proof signs on the surface.