The invention discloses an electric power heat insulation type insulator insulation shielding cover. The electric power heat insulation type insulator insulation shielding cover comprises an insulator shielding cover, a shielding cover covering plate, and a suspension clamp shielding cover, the insulator shielding cover is arranged in the U shape, edges of two side surfaces of the insulator shielding cover are provided with first fixing holes, the inner side of the lower part of the insulator shielding cover is provided with a base connecting groove, the insulator shielding cover is movably connected with the suspension clamp shielding cover via the base connecting groove, the shielding cover covering plate is arranged in the T shape, the shielding cover covering plate is provided with second fixing holes corresponding to the first fixing holes, the central part of the suspension clamp shielding cover is provided with a U-shaped metal shielding cover, the external surface of the metal shielding cover is provided with a U-shaped slipway, the inner part of the metal shielding cover is provided with wire clamp fixtures, and surfaces of the insulator shielding cover, the shielding cover covering plate, the suspension clamp shielding cover, and the metal shielding cover are all coated with high-temperature-resistant and wear-resistant insulation paints. According to the electric power heat insulation type insulator insulation shielding cover, the structure is simple, the operation is convenient, the shielding effect is good, and the safety factor is big.

Electric power heat insulation type insulator insulation shielding cover

The invention discloses an overhead power transmission line ground-wire optical-cable fitting replacement bracket which comprises an upright. The lower end of the upright is connected with inner ends of two stay bars in a rotating manner, each outer end of the stay bars is provided with a pulley block and connected with the upper end of the upright through a shackle and a suspension wire rope, each pulley block is provided with a lifting wire rope, each lower end of the lifting wire rope is connected with a suspension wire hook, and the upper end of each lifting wire rope is connected with a tightener. A tower ground-wire bracket is taken as an anchorage point, a ground wire or an optical cable is lifted simultaneously in a balancing manner according to the principle of claw derrick, a vertical load of the ground wire or optical-cable fitting is transferred to a tower, replacement of a ground wire insulator, optical-cable-pretwisting type wire clamp and the like is realized, operation time is saved, labor intensity of personnel is reduced, and safety of the personnel and equipment is guaranteed.

Overhead power transmission line ground-wire optical-cable fitting replacement bracket

The invention discloses an electric power overhaul folding ladder with an insulation protective layer. The electric power overhaul folding ladder with the insulation protective layer comprises a folding ladder body and the insulation protective layer. The folding ladder body comprises a connecting plate which comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are rotationally connected through a rotary assembly with an adjustable angle, and the connecting plate is provided with a hook. Insulation coating in the invention is high in mechanical strength, resistant to high temperature and acid, long in service life and high in safety performance.

Electric power overhaul folding ladder with insulation protective layer

The invention discloses a tool and a method for replacing an earth electrode circuit corner tension-resistant hardware fitting. The tool comprises a front clip, a back clip and a wire tightening screw rod, wherein the front clip is arranged as two suspension loops which are U-shaped, one end of each suspension loop is fixedly connected with a cross arm; one end of the back clip is connected with a triangular yoke plate; the wire tightening screw rod is arranged between the suspension loops and the back clip and comprises a thrust bearing, a handle, a lead screw, a ratchet casing and a bearing seat; the thrust bearing is fixedly connected with the other end of each suspension loop; the handle is arranged at the middle part of the lead screw; the ratchet casing is arranged between the lead screw and the bearing seat, sleeves outside the lead screw and is fixedly connected with the bearing seat; the bearing seat is fixedly connected with the other end of the back clip; and the suspension loops, the back clip and the wire tightening screw rod are made of a high-strength steel material. The tool disclosed by the invention is strong in universality and simple and convenient in operation method, greatly lightens the workload of hot-line work personnel on towers, and improves the operating efficiency.

Tool and method for replacing earth electrode circuit corner tension-resistant hardware fitting

The invention discloses a live working wire lifter, and belongs to a lifting device. The live working wire lifter structurally comprises two hoops and two sets of lifters, wherein the two hoops are an upper hoop body and a lower hoop body respectively; the upper hoop body and the lower hoop body are fixed to a pole through fixed bolts separately; each set of lifter comprises an upper insulating support rod, a lower insulating support rod, a connection device, a guide wheel, a lifting wheel, a lifting hook and an insulating lifting rope; each upper insulating support rod is suspended on the fixed bolt on the upper hoop body through an upper hook body and is connected with the upper hoop body; and each lower insulating support rod is suspended on the fixed bolt on the lower hoop body through a lower hook body and is connected with the lower hoop body. The live working wire lifter has the characteristics that the structure is relatively light; quick lifting of a wire is achieved; the station transfer and operation steps of operating personnel are reduced; the workload is reduced; the live working efficiency is improved; the work can be finished by only one person; and both time and labor are saved.

Live working wire lifter

The utility model discloses an insulation ladder in the shape of a Chinese character "shi". The insulation ladder in the shape of the Chinese character "shi" comprises a support rod. The upper end of the support rod is provided with a metal ring; the two sides of the lower portion of the support rod are each provided with a pedal rod; the two sides of the middle portion of the support rod are each provided with a seating rod; the pedal rods, the seating rods and the support rod are in the same plane and are all formed by filling epoxy resin insulating tubes; and the lengths of the pedal rods are smaller than the lengths of the seating rods. By cooperating with two-two pulley sets, the problem can be effectively solved that equipotential operators of an ultra-high voltage power transmission line enter an electric field, so that not only can operation time be saved, the operators ' labor intensity is also reduced, the safety distance of live-line operation is ensured, and the safety of the operators and equipment is guaranteed.

Insulation ladder in the shape of Chinese character "shi"

The invention belongs to the field of high-voltage electrical inspection equipment and radio technology, in particular to a dual-frequency dual-channel wireless triggering transmission line inspectiondevice. The device comprises an aerial inspection system and a ground monitoring system, and the aerial inspection system includes an unmanned aerial vehicle and an insulation rod installed on the unmanned aerial vehicle. The insulating rod is provided with an electrical inspection module, a first central processing module, a 315MHz wireless transmission module and a 433MHz wireless transmissionmodule. The ground monitoring system includes a 315MHz wireless receiving module, a second central processing module, an audible alarm module, a 433MHz wireless receiving module, a third central processing module, and a light alarm module. The aerial live-line inspection device employing double frequencies and double sources is provided with an aerial electrical inspection device, and a person does not need to climb high for operation, thereby reducing the danger of the person. Moreover, the double frequencies and double sources guarantee the triggering reliability of an alarm.

Gao Song

Papers

Electric power heat insulation type insulator insulation shielding cover

Overhead power transmission line ground-wire optical-cable fitting replacement bracket

Tool and method for replacing earth electrode circuit corner tension-resistant hardware fitting

Insulation ladder in the shape of Chinese character "shi"

Dual-frequency dual-channel wireless triggering transmission line inspection device