Power cable intermediate connector sealing device
A technology for power cables and sealing devices, applied in the direction of cable joints, etc., can solve the problems of easy deformation, excessive size, and laborious installation, and achieve the effects of easy installation, simple structure and reasonable number of joints
Inactive Publication Date: 2015-12-23
INNER MONGOLIA BAOTOU STEEL UNION
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Problems solved by technology
[0004] Therefore, the present invention aims at the unreasonable structural design of the metal sheath in the prior art, which is prone to deformation during use, cracks and water ingress, and other sealing devices generally have complex structures, laborious installation, and are too large to be placed on the cable bridge To solve the above problems, a sealing device for the intermediate joint of a power cable is provided, including an inner sheath and an outer sheath, the number of the inner sheaths is two, overlapping each other, and the power cable joint is partially wrapped in the inner sheath Inside, the number of the outer sheath is two, which are respectively lapped on the inner sheath and the power cable body, and the lap joints are all pasted with sealant, and the exterior of the lap joints is wrapped with waterproof tape
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[0017] The specific embodiment of the present invention is described below in conjunction with accompanying drawing:
[0018] Such as figure 1 As shown, a power cable intermediate joint sealing device includes an inner sheath 1 and an outer sheath 2, the number of the inner sheath 1 is two, overlapping each other, and the power cable joint part 3 is wrapped in the inner sheath Inside 1, there are two outer sheaths 2, which are overlapped with the inner sheath 1 and the power cable body 4 respectively. The overlapping joints are pasted with sealant, and the overlapping joints are wrapped with waterproof tape 5.
[0019] The sealant is not prone to cracks and has excellent sealing performance. The waterproof tape 5 is wrapped around the joints, making full use of the ductility and durability of the waterproof tape 5 to solve the problem between the sheaths and between the sheath and the cable. The different thermal expansion and contraction coefficients cause disengagement at t...
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Abstract
The invention discloses a power cable intermediate connector sealing device, belongs to the technical field of power cable connector material, and aims at solving problems in the prior art that metal sheaths are liable to deform in use and crack and then water enters due to unreasonable structural design and other sealing devices are commonly complex in structure, labor-consuming in installation and oversize and cannot be placed on a cable bridge. The power cable intermediate connector sealing device comprises internal layer sheaths and external layer sheaths. There are two internal layer sheaths which are mutually connected in a lapping way. A power cable connector part is wrapped in the internal layer sheaths. There are two external layer sheaths which are respectively connected with the internal layer sheaths and a power cable body in the lapping way. The lapping part is adhered by sealing adhesive, and the external part of the lapping part is wrapped by a waterproof adhesive tape. The power cable intermediate connector sealing device has advantages that the power cable intermediate connector sealing device is firm in sealing and is not liable to deform, and is simple in structure and easy to install so that the power cable intermediate connector sealing device is used for sealing of various power cable intermediate connectors.
Description
technical field [0001] The invention specifically relates to a sealing device for an intermediate joint of a power cable, and belongs to the technical field of power cable joint materials. Background technique [0002] At present, the enterprise power grid is mainly based on power cables. If the cable enters water or is damp, the internal structure of the cable will be affected by electrical effects. If the fault occurs, it will cause fluctuations in the power grid system, and in severe cases, it will cause the system to collapse and affect the stable operation of the system. Most of the water ingress and dampness of the cable is caused by the decline in the sealing performance of the cable middle head. After the cable is infiltrated or damp, it will flow in the cable, causing serious hidden dangers or scrapping of the entire cable or part of the cable due to water ingress, and greatly improving the quality of the cable. reduce the chance of cable failure. If the directly ...
Claims
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Inventor 孙立国张君邸勇吕朝勇朱传军范建业高勇
Owner INNER MONGOLIA BAOTOU STEEL UNION