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Fire Resistant Cable Tray Box

A technology of fire-resistant cables and slot boxes, applied in the direction of electrical components, etc., can solve the problems of ignoring the actual use environment, only focusing on the fire-resistant performance of the bridge, and large cable loads

Active Publication Date: 2016-06-08
JIANGSU YINJIA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most manufacturers only pay attention to the fire resistance of the bridge, ignoring its actual use environment.
Most of this type of bridge is used for the laying of power cables with fire protection requirements. The cable has a large load and generates relatively more heat. The design concept of the fire-resistant bridge is first of all to focus on how to effectively prevent fire and heat insulation, which creates a contradiction. If the heat of the cable cannot be dissipated, it will run at high temperature for a long time, which will accelerate the aging of the cable.

Method used

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  • Fire Resistant Cable Tray Box

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Experimental program
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Effect test

specific Embodiment 1

[0016] Specific embodiment one: as figure 1 As shown, the fire-resistant cable box includes an outer tank body 1, an inner tank body 2, aluminum silicate wool 3 filled between the outer tank body 1 and the inner tank body 2, and a seal on the upper part of the outer tank body 1 and the inner tank body 2. cover plate. The cover plate includes an inner layer cover plate 4 , a middle layer cover plate 5 , and an outer layer cover plate 6 . The outer cover 6 has an upwardly raised middle cover and an edge cover connected to the middle cover. The middle cover 5 is located in the cavity surrounded by the middle cover and the edge cover and is fixedly connected to the inner wall of the cavity. The inner cover Plate 4 is fixedly connected to the edge cover. The inner cover plate 4 is partially provided with a waist hole, and the part of the middle cover plate 5 corresponding to the position of the waist hole is an upwardly raised bump, and the bump is provided with a cooling hole 7 ...

specific Embodiment 2

[0018] Specific embodiment two: On the basis of specific embodiment one, the heat dissipation hole is coated with fireproof paint, and the fireproof paint expands and blocks the heat dissipation hole when encountering a fire house, protecting the cable. The outer cover plate is formed by one-time cold bending to form an upwardly raised middle cover plate at the position corresponding to the bump. The cavity formed between the middle cover plate and the edge cover plate is conducive to the dissipation of heat from the cable. Hermeticity is guaranteed.

[0019] In addition, in the specific embodiment 1 and the specific embodiment 2, the inner layer cover plate 4 and the inner tank body 2 are made of inorganic fireproof materials, and the middle layer cover plate 5 and the outer layer cover plate 6 are steel cover plates. A grounding bolt 8 is fixed on the outer wall of the outer tank body 1 . The waist hole is preferably a square waist hole.

[0020] The fire resistance and he...

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Abstract

The invention discloses a fire-resistant cable trough, in particular a fire-resistant cable trough which is beneficial to heat dissipation of cables. Fire-resistant cable trough box, including outer tank body, inner tank body, aluminum silicate wool filled between the outer tank body and inner tank body, cover plate sealed on the upper part of the outer tank body and inner tank body, and the cover plate includes the inner layer cover plate , the middle cover, the outer cover, the outer cover has an upwardly raised middle cover and an edge cover connected to the middle cover, the middle cover is located in the cavity surrounded by the middle cover and the edge cover and is connected to the cavity The inner wall is fixedly connected, the inner cover is fixedly connected with the edge cover, the inner cover is partially opened with a waist hole, and the part corresponding to the position of the middle cover and the waist hole is an upward raised bump, and the bump is provided with a heat dissipation hole. The present invention utilizes the waist hole of the inner layer cover plate and the cooling hole on the protrusion of the middle layer cover plate through the provided three-layer cover plate to dissipate the heat of the cable. The heat dissipation holes coated with fireproof materials expand and block the heat dissipation holes when encountering a fire house, protecting the cables.

Description

technical field [0001] The invention discloses a fire-resistant cable trough, in particular a fire-resistant cable trough which is beneficial to the heat dissipation of large-load power cables. Background technique [0002] At present, the refractory trough box (also called refractory bridge) on the market is mainly composed of metal skeleton and glass fiber reinforced material, composite fireproof board of inorganic materials, refractory aluminum silicate wool felt and fireproof base foam coating. However, most manufacturers only pay attention to the fire resistance of the bridge, ignoring its actual use environment. Most of this type of bridge is used for the laying of power cables with fire protection requirements. The cable has a large load and generates relatively more heat. The design concept of the fire-resistant bridge is first of all to focus on how to effectively prevent fire and heat insulation, which creates a contradiction. If the heat of the cable cannot be di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G3/04
Inventor 顾洪卫姚建明韦红根常加军唐娉婷田志新陈太祥
Owner JIANGSU YINJIA GROUP