Abstract: A pneumatic fender includes: a ring-shaped metal fitting housing that is mounted on at least one end of a pneumatic fender and forms a penetrating part penetrating the inside and outside of the pneumatic fender; a plate-shaped flange that is mounted on the penetrating part to block the inside and outside of the pneumatic fender; a wireless transmitter that is mounted on the front surface of the flange defining a surface formed in the external direction of the pneumatic fender; a cover that is mounted on the front surface of the flange; a shaft that has a predetermined length and is mounted on the rear surface of the flange; a position sensor that is mounted on the internal direction end of the shaft and generates position information of the pneumatic fender; and a reflective member that is connected to the shaft between the flange and the position sensor.

Abstract: Disclosed herein is an insulating bushing adapted to protect a busbar and having improved waterproof performance. The insulating bushing includes: a first bushing provided with a first bushing passage through which the busbar passes; a second bushing provided with a first bushing-receiving portion receiving an upper portion of the first bushing inserted through a lower portion of the first bushing-receiving portion and a second bushing passage through which the busbar passes; and a cover coupled to an outer surface of the second bushing and provided with a cover passage through which the busbar passes.

Abstract: Disclosed herein is an insulating bushing adapted to protect a busbar and having improved waterproof performance. The insulating bushing includes: a first bushing provided with a first bushing passage through which the busbar passes; a second bushing provided with a first bushing-receiving portion receiving an upper portion of the first bushing inserted through a lower portion of the first bushing-receiving portion and a second bushing passage through which the busbar passes; and a cover coupled to an outer surface of the second bushing and provided with a cover passage through which the busbar passes.