Jiangsu Shemar Electric Co., Ltd.

Jiangsu Shenma Electric Co., Ltd.

Jiang Fang

Bin Ma

Jie Yu

Dequan Li

Chao Liu

Guiyan Ni

Qing Huang

Bing Wang

Qingzhan Wang

Xuejun Cai

Shuchen Zhou

Ronghua Wang

Libin Yang

Jianquan Jiang

Liquan Tang

Provided is a flange () connected to an end of an insulating tube (), the flange includes a flange plate () abutting the end of the insulating tube, a groove () recessed toward inside of the insulating tube is disposed on the flange plate, the groove is connected to the insulating tube, an inflation valve () is disposed within the groove, the groove is filled with sealing material () which covers the inflation valve. Provided are also insulator and insulated support post using the flange. The flange, the insulator and insulated support post help to protect the inflation valve from external force and the groove is filled with the sealing material to ensure the sealing performance of the flange.

Flange, insulator and insulated support post

Disclosed in the present invention is a post insulator, comprising a hollow insulating tube, a shed positioned on a periphery of the hollow insulating tube, and an upper flange and a lower flange provided at two ends of the hollow insulating tube, wherein gas is sealed inside of the hollow insulating tube, and the absolute pressure of the gas is 0.1-0.15 MPa. Further disclosed is an insulated support post formed by the end-to-end connection of the post insulators. The post insulator and the insulated support post of the present invention solve an interface problem present in internal insulating solid material filling, and also solve a gas leaking problem that occurs when using high-pressure gas filling, such that the post insulator does not need to be detected and maintained. At the same time, the margin of the micro-water control range is improved, and micro-water control and production difficulty is reduced.

Post insulator and insulated support post

A composite crossarm fixed on a pole body of a transmission pole is disclosed. The composite crossarm includes: a core rod, an insulating layer and a load-bearing member. The insulating layer and the load-bearing member cover and are fixed to an outer peripheral surface of the core rod. The load-bearing member is positioned in a middle region of the core rod connected to the pole body, and the insulating layer is positioned in regions of the core rod other than the middle region. A transmission pole using the above composite crossarm is also disclosed. In the above manner, the load-bearing member is arranged at a position where the core rod is connected to the pole body in advance. On one hand, the core rod is able to be connected to the pole body without providing with a hole. On the other hand, the load caused by the fixed connection is applied on the load-bearing member directly, with no damage to the insulating layer. Both the load-bearing member and the insulating layer cover and are fixed on the outer peripheral surface of the core rod, so that the core rod is protected from external corrosion, to ensure the mechanical properties of the composite crossarm.

Composite crossarm and transmission pole

An overhead power distribution line () comprises a tension resistant pole (), two composite crossbeams () and tension resistant fixing members (). A middle portion of the composite crossbeam () is horizontally secured on the tension resistant pole (), and end portions of the composite crossbeam () are connected to the tension resistant fixing members (). The tension resistant fixing members () enable the two composite crossbeams () to integrally connect and are for fixing conducting lines. With the above configuration, two composite crossbeams () are secured on the same horizontal plane of the tension resistant pole (), thus satisfying vertical tension of a tension resistant requirement. Further, by using composited crossbeam bodies (), a dry arc distance is significantly increased, and electrical lightning resistance performance is enhanced, preventing incidents such as line disconnection and flashover caused by lightning strike. The composite crossbeams () are maintenance-free and do not require periodical inspection and maintenance, significantly reducing labor costs. The use of crossbeams () can further eliminate the use of tension insulators and simplify the structure of lines.

Overhead power distribution line

A shed housing is disclosed. The shed housing covers an insulator including at least one shed. The shed housing includes a receiving cavity allowing an upper surface and a lower surface of the shed to be received in the receiving cavity. The shed housing is provided with a mounting hole through which the insulator passes, and an opening corresponding to the mounting hole. The opening communicates the mounting hole with an outer edge of the shed housing. The mounting hole communicates with the receiving cavity. A first connecting portion and a second connecting portion cooperating with the first connecting portion are arranged respectively on both ends of the opening. When the first connecting portion is connected to the second connecting portion, the shed housing is closed along a circumferential direction. The shed housing is able to receive the entire piece of shed, and can be assembled on the shed without any additional connecting components, which is convenient and high-efficient and has good effect on preventing pollution flashover and rain flashover.

Shed housing

Disclosed are an insulated pipe and an insulated bushing. The insulated bushing () includes: an insulator () including an intermediate shed member (), and a lower flange () arranged on a lower end of the shed member; a head member () connected to an upper end of the insulator, wherein the head member includes an oil conservator () connected to the upper end of the insulator and a connecting terminal () connected to the oil conservator; and an insulated pipe () connected to the lower flange, wherein the insulated pipe includes a upper transformer pipe () and a lower oil-immersed pipe (), and the transformer pipe includes an inner pipe (), and a conductive layer arranged outside the inner pipe and configured to be grounded. The insulated pipe and the insulated bushing solve the problems of connection and sealing, and save material cost greatly.

Insulation pipe and insulation sleeve with such insulation pipe

Crossarm

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Nantong, China

Jiang Fang