Abstract: A protection structure is disclosed and is applied in a fuse link switch. The fuse link switch comprises: an insulator, a fuse tube including an upper connection portion and a lower connection portion, an upper-end fixing unit, a lower-end fixing unit, and a toggle mechanism, wherein the upper connection portion is connected with a pull hook. The protection structure comprises at least one electrically insulating shielding layer covering at least one of the upper-end fixing unit, the pull hook, the upper connection portion, the lower connection portion, the lower-end fixing unit, and the toggle mechanism through overmolding technique.

Abstract: A protection structure is disclosed, and is applied in a fuse link switch. The fuse link switch comprises: an insulator, a fuse tube including an upper connection portion and a lower connection portion, an upper-end fixing unit, a lower-end fixing unit, and a toggle mechanism, wherein the upper connection portion is connected with a pull hook. The protection structure comprises at least one clapping layer covering at least one of the upper-end fixing unit, the pull hook, the upper connection portion, the lower connection portion, the lower-end fixing unit, and the toggle mechanism through overmolding technique.

Abstract: A clamp-type line post insulator is disclosed. The clamp-type line insulator is provided with a thread clamping device, and comprises: a body, a cable clamp, an insulation unit and an adjustable fixing unit. In the present invention, the body comprises: a receiving recess, a fixing base and a cable groove. Moreover, a pivoting end of the cable clamp pivotally connected to a pivot member that is formed on the fixing base. Particularly, after placing an electrical cable in the cable groove, the cable clamp is rotated by taking the pivot member as an axle center, thereby inserting an engaging end of the cable clamp into the engagement groove to engage with it. By such arrangements, the electrical cable be pressed and fixed in the cable groove by rotating the adjustable fixing unit.

Abstract: An insulation device is disclosed. The insulation device is allowed to be assembled with a fuse tube device so as to form a load break fuse cutout fully closed. The insulation device comprises: a full-closed cylindrical insulator oriented vertically, a first cylindrical insulator oriented horizontally, a second cylindrical insulator oriented horizontally, a third cylindrical insulator oriented horizontally, a first electrical connection unit accommodated in the first cylindrical insulator, a second electrical connection unit accommodated in the second cylindrical insulator, a first arc extinguishing unit accommodated in the first cylindrical insulator, a second arc extinguishing unit accommodated in the second cylindrical insulator, and a mounting bracket connected to the full-closed cylindrical insulator.

Abstract: A fuse tube device is disclosed. The fuse tube device is allowed to be assembled with an insulation device so as to form a load break fuse cutout fully closed. The fuse tube comprises: an insulation housing, an accommodation tube, a first electrical connection unit, a second electrical connection unit, a conductive rod, a fuse element, a first conductive plate, a first cover, a second conductive plate, and a second cover. When assembling the fuse tube device with the insulation device, a first embedding member and a second embedding member of the insulation housing are embedded into a first terminal connecting opening and a second terminal connecting opening of the insulation device, such that the first electrical connection unit and the second electrical connection unit contact a first terminal connecting member and a second terminal connecting member of the insulation device, respectively.

Abstract: A clamp-type line post insulator is disclosed. The clamp-type line insulator is provided with a thread clamping device, and comprises: a body, a cable clamp, an insulation unit and an adjustable fixing unit. In the present invention, the body comprises: a receiving recess, a fixing base and a cable groove. Moreover, a pivoting end of the cable clamp pivotally connected to a pivot member that is formed on the fixing base. Particularly, after placing an electrical cable in the cable groove, the cable clamp is rotated by taking the pivot member as an axle center, thereby inserting an engaging end of the cable clamp into the engagement groove to engage with it. By such arrangements, the electrical cable be pressed and fixed in the cable groove by rotating the adjustable fixing unit.

Abstract: An electronic switch structure capable of extinguishing arcs is provided. A device capable of extinguishing arcs generated when an electric switch is turned on or off is in a following structure. Two silicon controlled rectifiers are connected in inverse parallel. Trigger ports of the silicon controlled rectifiers are connected to triggering current limiting circuits each formed by a diode and a resistor connected in series, respectively. Positive poles and negative poles of the silicon controlled rectifiers are connected to a voltage dependent resistor and a resistance-capacitance absorption circuit for over voltage protection in parallel. A triggering end of the device is connected to a contact bridge of the switch. Two ends connected in inverse parallel of the silicon controlled rectifiers are connected to two ends of fixed contacts of the switch respectively. Thus, an electronic arc extinguishing device having a simple structure, a small volume, and high reliability is formed.

Abstract: An electronic switch structure capable of extinguishing arcs is provided. A device capable of extinguishing arcs generated when an electric switch is turned on or off is in a following structure. Two silicon controlled rectifiers are connected in inverse parallel. Trigger ports of the silicon controlled rectifiers are connected to triggering current limiting circuits each formed by a diode and a resistor connected in series, respectively. Positive poles and negative poles of the silicon controlled rectifiers are connected to a voltage dependent resistor and a resistance-capacitance absorption circuit for over voltage protection in parallel. A triggering end of the device is connected to a contact bridge of the switch. Two ends connected in inverse parallel of the silicon controlled rectifiers are connected to two ends of fixed contacts of the switch respectively. Thus, an electronic arc extinguishing device having a simple structure, a small volume, and high reliability is formed.

Abstract: A cable terminal connector stretcher includes a pawl ring, the pawl ring having plurality of equiangularly spaced and longitudinally extended pawls, and locking loop adapted to be fastened to the pawls of the pawl ring to secure the pawl ring to a high-tension cable terminal connector.