Cable feeding apparatus for fireproof cable of device

Abstract

The invention discloses a cable feeding apparatus for a fireproof cable of a device. The cable feeding apparatus is applied to the connection of fireproof cables of a ship. The apparatus comprises an adapting bend and a widening connector, wherein the widening connector comprises a connecting end and a widening end; the connecting end is fixedly connected with one end of the adapting bend; the inner diameter of the widening end is greater than that of a cable feeding hole of the device; when the inner diameter of the cable feeding hole of the device is smaller than a preset cable feeding inner diameter corresponding to a fireproof cable bundle, the other end of the adapting bend is fixedly connected with the cable feeding hole of the device; the fireproof cable bundle penetrates into the cable feeding hole of the device from the widening connector and the adapting bend; and an inner cavity of the widening end is filled with a fireproof blockage material greater than or equal to a preset duty ratio. Through the cable feeding apparatus, safe cable feeding of the fireproof cable under the condition of not destroying the cable feeding hole of the device is realized, the influence on later maintenance of the device is avoided, and the problems of long cycle and high expense in changing the cable feeding hole of the imported device are solved.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a line-entry device for equipment fire-resistant cables. Background technique [0002] In the process of ship construction, based on the requirements for ship safety, important equipment such as motors and generators need to be connected by fire-resistant cables, and the entrances of the lines need to be filled with fire-resistant blocking materials to play the role of sealing and fire prevention, such as figure 1 shown. [0003] When filling the fireproof blockage, the ratio of the blockage to the size of the cable (that is, the duty ratio) needs to meet certain requirements in order to meet the safety standard. For this reason, it is required that the space of the equipment inlet must be able to meet the duty ratio of the fireproof blockage. If the space of the equipment inlet is too small, the following methods are usually used: method 1, to be modified by the ship build...

AI Technical Summary

Problems solved by technology

For method 1, usually adopting methods such as drilling holes and grinding on the equipment will destroy the original appearance of the equipment, and the warranty of the equipment factory in the later period is likely to cause conflicts

The second way is to return to the factory for modification. For large-scale electromechanical equipment, especially imported equipment, there are problems of long cycle time and high cost.

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