SU1654908A1 - Cable lead-in - Google Patents

Abstract

The invention relates to electrical engineering and can be used in shipbuilding to seal cable runs through ship hull structures. The circuit of the invention is to increase reliability by reducing the squeezing forces on the module. For this, the modules 4 installed in frame 2 are cut off from the side of the smaller base of the conical hole 7 and mounted on cable 5 in such a way that section 9 of the increased pressure side is provided with section 9 with tight fit of the inner walls of the passage opening 7 of module 4 to cable 5, and the whole wedge-shaped sealing modules 3 are placed directly at the top and bottom walls of the frame 2, which are made at an angle to the side with normal pressure. 2 Il. / I 3 (/ С

Description

The invention relates to electrical engineering, in particular to devices for sealing cables, and can be used in shipbuilding to seal cable runs through ship hull structures and to enter cables into sealed instruments.

The purpose of the invention is to increase the reliability by reducing compressive forces on the modules,

FIG. 1 shows cable entry, cut; in fig. 2 - module when adjusting the diameter of the bore hole to the diameter of the passing cable.

The installation of the input is carried out as follows.

The frame 2 is welded into the housing 1, the top and bottom walls of which are angled to the side with normal pressure. The bottom one-piece wedge-shaped sealing module 3 is installed. The modules 4 are fitted to the diameters of the cables 5 and are put on the cables 5 to provide a section with a tight fit of the inner walls of the bore hole. The modules 4 to the cables increase in size. high pressure side. The modules 4 are installed, which are installed on cables 5 in the construction of the bottom and fixed in the structure by dividing strips 6. After the upper row of modules is installed and fixed by strips, the upper one-piece wedge-shaped sealing module 3 is installed in the design so that the gaps are chosen. / "7

Editor A. Shandor

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Compiled by A. Masaltseva Tehred M. Didyk

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five

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When pressure is applied, the cables in the modules are initially retained due to the areas of tight compression of the through holes of the modules. As the pressure increases, the materials of all modules transversely expand, and the modulus elastically expands in the direction perpendicular to the pressure direction. The higher the pressure, the greater the magnitude of this elastic expansion of the modules.

The fitting of the module to the cable diameter is carried out as follows. Module 4 with a tapered bore 7 is cut off along line 8 of the cut so as to provide a section with tight fit of the 9 inner walls of the through hole of the module to cable 5.

The invention makes it possible to condense cables of different diameter in one module, to simplify the design, to significantly reduce the squeezing forces on the modules and, consequently, to prolong their service life.

Claims (1)

Invention Formula Cable entry containing a frame filled with resilient square elastic modules made with cable feedthroughs, dividing the modules into rows of strips and pressing device, characterized in that, in order to increase reliability by reducing compressive forces on the modules , the holes in the latter are conical in shape, with the thickness of the walls of each module increasing in the direction intended to be placed in the pressure zone. $ 9 At 5 Proofreader S. Shekmar