CN211701441U - Fireproof and explosion-proof isolation belt for cable intermediate joint - Google Patents
Fireproof and explosion-proof isolation belt for cable intermediate joint Download PDFInfo
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- CN211701441U CN211701441U CN202020608799.3U CN202020608799U CN211701441U CN 211701441 U CN211701441 U CN 211701441U CN 202020608799 U CN202020608799 U CN 202020608799U CN 211701441 U CN211701441 U CN 211701441U
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Abstract
The utility model discloses a cable intermediate head is with fire and explosion protection median belongs to the cable median field, and a cable intermediate head is with fire and explosion protection median is particularly suitable for 10kV cable intermediate head's fire prevention isolation, include flexible fire-resistant explosion-proof bandage, irreversible type temperature measurement paster, from locking-type stainless steel ribbon. This fire prevention explosion-proof median has fully solved the adaptation cable intermediate head well narrow and small, and the problem that the cable head shape differs can guarantee effectively keep apart the explosion danger and keep apart the fire source when the cable head trouble to can effectively restrain and extinguish the production of naked light.
Description
Technical Field
The utility model relates to a cable median field especially relates to a cable intermediate head is with fire prevention and explosion protection median and application method.
Background
The fire-proof and explosion-proof box for the middle head of the traditional cable is formed by buckling two double-layer semi-cylinders which cannot burn together, and filling flame-retardant materials in an interlayer of two layers of shells, wherein the two double-layer semi-cylinders wrap the middle joint of the cable in the middle. The fireproof and explosion-proof box adopting the structure has a complex construction process, the size is determined when the fireproof and explosion-proof box is prefabricated in a factory, the fireproof and explosion-proof box cannot be bent, the fireproof and explosion-proof box cannot be applied to narrow areas of a cable well, the requirements of different shapes, sizes and bending angles of the middle head of a cable cannot be met, the application range is small, after the fireproof and explosion-proof box is used for a long time, the possibility that other cables in a cable trench are damaged by spontaneous combustion or explosion of the cable is very high, the safety performance is not ideal enough, and the fireproof and explosion-proof.
The existing fireproof and explosion-proof box for the cable intermediate joint is complex to use, small in application range and poor in fireproof and explosion-proof effects.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems of complex use, small application range and poor fireproof and explosion-proof effect, and providing a fireproof and explosion-proof isolation belt for a cable intermediate head and a using method.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fire and explosion protection median for cable intermediate head includes: the fireproof and explosion-proof isolation belt comprises a flexible fireproof and explosion-proof binding belt, three temperature measurement patches and five self-locking binding belts, wherein the flexible fireproof and explosion-proof binding belt is 50000mm long and 150mm wide; the flexible fire-resistant explosion-proof bandage outside surface equidistance is provided with five from locking-type bandages, flexible fire-resistant explosion-proof bandage and from locking-type bandage fixed connection, three temperature measurement pasters of flexible fire-resistant explosion-proof bandage surface paste, flexible fire-resistant explosion-proof bandage is 0.24mm glass fiber decorative cloth, 1mm dupont aramid fiber kevlar bulletproof fiber cloth, 2mm aluminium silicate fire prevention cloth, 6mm aluminium silicate fiber blanket, 2mm aluminium silicate fire prevention cloth, 0.24mm glass fiber decorative cloth and 0.15mm high-viscosity high temperature resistant acrylic acid glue from inlayer to the skin in proper order, and fixed connection between layer upon layer.
Preferably, the temperature measuring patch is 75 ℃ irreversible.
Preferably, the self-locking bundling width is 12 mm.
Preferably, the self-locking cable tie is made of stainless steel.
Preferably, the self-locking cable tie is made of corrosion-resistant and antistatic materials
Compared with the prior art, the utility model provides a cable intermediate head is with fire prevention and explosion protection median and application method possesses following beneficial effect:
1. compared with the traditional cable middle head fireproof and explosion-proof box, the fireproof isolation binding band has the advantages of simple construction, no requirement on the field, energy conservation, environmental protection, no toxicity, good fireproof and explosion-proof effects, early warning and temperature measurement, and can be used for fireproof protection of various special-shaped bent cable joints; through the verification tests such as the insulation resistance test, the direct current withstand voltage and leakage current test, the alternating current withstand voltage test and the like on the repaired cable, the cable has good insulation condition and does not have insulation breakdown; compared with the historical data, the test result has no obvious difference from the indexes of normal cables, such as insulation resistance, leakage current and the like.
Drawings
Fig. 1 is an overall schematic view of a fire-proof and explosion-proof isolation belt for a cable intermediate joint provided by the utility model;
fig. 2 is the utility model provides a cable intermediate head is with flexible fire-resistant explosion-proof bandage internal structure schematic diagram of fire-proof explosion-proof median.
The reference numbers in the figures illustrate:
101 fireproof and explosion-proof isolation belts, 102 flexible fireproof and explosion-proof binding belts, 103 irreversible temperature measuring patches, 104 wide self-locking stainless steel binding belts, 105 glass fiber decorative cloth, 106 dupont aramid Kevlar bulletproof fiber cloth, 107 aluminum silicate fireproof cloth, 108 aluminum silicate fiber blanket and 109 high-viscosity high-temperature-resistant acrylic acid adhesive.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1:
a fire and explosion protection median for cable intermediate head includes: the fireproof and explosion-proof isolation belt 101 comprises a flexible fireproof and explosion-proof binding belt 102, three temperature measurement patches 103 and five self-locking binding belts 104, wherein the flexible fireproof and explosion-proof binding belt 102 is 50000mm long and 150mm wide; the external surface equidistance of flexible fire-resistant explosion-proof bandage 102 is provided with five from locking-type bandages 104, flexible fire-resistant explosion-proof bandage 102 and from locking-type bandage 104 fixed connection, three temperature measurement patches 103 of flexible fire-resistant explosion-proof bandage 102 surface paste, flexible fire-resistant explosion-proof bandage 102 is 0.24mm glass fiber decorative cloth 105, 1mm dupont aramid fiber kevlar bulletproof fiber cloth 106, 2mm aluminium silicate fire prevention cloth 107, 6mm aluminium silicate fiber blanket 108, 2mm aluminium silicate fire prevention cloth 107, 0.24mm glass fiber decorative cloth 105 and 0.15mm high-viscosity high temperature resistant acrylic acid glue 109 from inlayer to skin in proper order, and fixed connection between the layer upon layer.
Further, the temperature measuring patch 103 is 75 ℃ irreversible;
further, the width of the self-locking tie 104 is 12 mm;
further, the self-locking tie 104 is made of stainless steel;
further, the self-locking cable tie 104 is made of corrosion-resistant and antistatic material.
A fire-proof and explosion-proof isolation belt for a cable intermediate joint is characterized in that a flexible fire-proof and explosion-proof binding belt 102 is formed by laminating, sewing and fixing 0.24mm of glass fiber decorative cloth 105, 1mm of DuPont aramid fiber Kevlar bulletproof fiber cloth 106, 2mm of aluminum silicate fireproof cloth 107, 6mm of aluminum silicate fiber blanket 108, 2mm of aluminum silicate fireproof cloth 107, 0.24mm of glass fiber decorative cloth 105 and 0.15mm of high-viscosity high-temperature-resistant acrylic acid glue 109, then five self-locking binding belts 104 are fixed and sewed on the outer surface at equal intervals and used for fixing and pressing the fire-proof and explosion-proof isolation belt after a cable is wrapped, the self-locking binding belts 104 are in a loose state, and the binding belts 104 are locked after the flexible fire-proof and explosion-proof binding belt 102 wraps the repaired; three temperature measurement patches 103 are attached to the outer surface of the flexible fire-resistant explosion-proof binding band 102, so that the joint can be periodically detected, and the damage caused by high temperature after the joint is overflowed can be checked.
The method comprises the following steps of stripping the outer sheath and the armor according to the process requirements of the cable intermediate joint, stripping the inner sheath, stripping the copper shield and the semi-conducting layer, and cleaning and sanitation gradually according to the requirements; manufacturing a cable intermediate joint according to the process requirement of the cable intermediate joint; binding the copper mesh sleeve, the waterproof adhesive tape, the steel armor and the like layer by layer until the manufacturing is finished; after the test is qualified, the following work is carried out; the flexible fire-resistant explosion-proof binding belt 102 is spirally bound to the position 400mm behind the joint from the position 400mm in front of the middle head of the cable in a semi-lamination mode, and the binding belt is tightly attached to the cable and the middle joint as much as possible during binding; after binding, uniformly fixing five self-locking stainless steel bands 104 with the width of 12mm, and cutting off the redundant parts of the bands after fixing; and finally, three 75-DEG C irreversible temperature measuring patches 103 are pasted outside the binding band, the uniform spacing distance is ensured as much as possible during pasting, and the binding band faces to a striking position during patrol, so that the daily patrol is facilitated.
Further, the confining pressure treatment comprises the following steps: before compression joint, oil stains and oxide layers on the inner walls of the wire core and the connecting pipe are removed, and the inner surface and the outer surface of the connecting pipe and the surface of the wire core are cleaned by cleaning paper; the crimping pliers and the die meeting the specification requirements are adopted, the die of the crimping pliers is matched with the size of the connecting pipe and the section of the wire core, and the compression ratio is adjusted according to the specification; the specification of the connecting pipe is matched with the diameter and the radial length of the conductor; if the connecting pipe is loosened after being sleeved into the conductor wire core, the connecting pipe is pressed and connected after being filled; according to the sequence of the pressure welding by the confining pressure method, the two ends are firstly pressed, then the middle is pressed, and the two ends are contacted by the mould. The ridge line formed by confining pressure or the central line of the pressure pit should form a straight line; after crimping, the connecting pipe should not have cracks, and the surface of a crimping part should be polished smooth and free of burrs and tips; in the pit pressing of the point pressing method, the bottom of the pit is flat and has no crack, and the pit is covered with a metal shield so as to eliminate the electric field distortion caused by the pit pressing; edges and burrs which cannot be filled are polished completely by a file and abrasive paper, and polished metal chips are cleaned up.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A fire and explosion protection median for cable intermediate head includes: the fireproof and explosion-proof isolation belt (101) is characterized in that the fireproof and explosion-proof isolation belt (101) comprises a flexible fireproof and explosion-proof binding belt (102), three temperature measuring patches (103) and five self-locking binding belts (104),
the flexible fire-resistant explosion-proof binding band (102) is 50000mm long and 150mm wide; five self-locking ties (104) are equidistantly arranged on the outer surface of the flexible fire-resistant explosion-proof tie (102),
the flexible fire-resistant explosion-proof binding band (102) is fixedly connected with a self-locking binding band (104),
three temperature measuring patches (103) are stuck on the outer surface of the flexible fire-resistant explosion-proof binding band (102),
the flexible fire-resistant explosion-proof binding band (102) is composed of 0.24mm of glass fiber decorative cloth (105), 1mm of Dupont aramid fiber Kevlar bulletproof fiber cloth (106), 2mm of aluminum silicate fireproof cloth (107), 6mm of aluminum silicate fiber blanket (108), 2mm of aluminum silicate fireproof cloth (107), 0.24mm of glass fiber decorative cloth (105) and 0.15mm of high-viscosity high-temperature-resistant acrylic acid adhesive (109) in sequence from the inner layer to the outer layer, and is fixedly connected layer by layer.
2. The fire-proof and explosion-proof isolating belt for the intermediate joint of the cable as claimed in claim 1, wherein: the temperature measuring patch (103) is 75 ℃ irreversible.
3. The fire-proof and explosion-proof isolating belt for the intermediate joint of the cable as claimed in claim 1, wherein: the width of the self-locking cable tie (104) is 12 mm.
4. The fire-proof and explosion-proof isolating belt for the intermediate joint of the cable as claimed in claim 2, wherein: the self-locking tie (104) is made of stainless steel.
5. The fire-proof and explosion-proof isolating belt for the intermediate joint of the cable as claimed in claim 2, wherein: the self-locking cable tie (104) is made of corrosion-resistant and anti-static materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020608799.3U CN211701441U (en) | 2020-04-21 | 2020-04-21 | Fireproof and explosion-proof isolation belt for cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020608799.3U CN211701441U (en) | 2020-04-21 | 2020-04-21 | Fireproof and explosion-proof isolation belt for cable intermediate joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211701441U true CN211701441U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020608799.3U Expired - Fee Related CN211701441U (en) | 2020-04-21 | 2020-04-21 | Fireproof and explosion-proof isolation belt for cable intermediate joint |
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| CN (1) | CN211701441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130128A (en) * | 2021-04-16 | 2021-07-16 | 上海永进电缆(集团)有限公司 | Flame-retardant fire-resistant anti-radiation cable for nuclear power station |
-
2020
- 2020-04-21 CN CN202020608799.3U patent/CN211701441U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130128A (en) * | 2021-04-16 | 2021-07-16 | 上海永进电缆(集团)有限公司 | Flame-retardant fire-resistant anti-radiation cable for nuclear power station |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |