CN106786226B - A kind of anti-breakdown treatment process of electrical cable terminal fire prevention - Google Patents
A kind of anti-breakdown treatment process of electrical cable terminal fire prevention Download PDFInfo
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- CN106786226B CN106786226B CN201710087275.7A CN201710087275A CN106786226B CN 106786226 B CN106786226 B CN 106786226B CN 201710087275 A CN201710087275 A CN 201710087275A CN 106786226 B CN106786226 B CN 106786226B
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- Prior art keywords
- breakdown
- fire
- metallic channel
- cable
- fire prevention
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
- H02G1/145—Moulds
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- Cable Accessories (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention belongs to electrical cable terminal processing techniques field, discloses a kind of anti-breakdown treatment process of electrical cable terminal fire prevention, includes the following steps：Insulation and moisture processing is carried out to the wire connection terminal of cable terminal；The anti-breakdown processing mould of installation fire prevention outside the wire connection terminal of cable terminal；Cable end face gasket is installed in the metallic channel for preventing fires anti-breakdown processing mould and carries out isolating seal；Fire proofing material is injected in anti-breakdown processing mould of preventing fires；Anti-breakdown processing mould of preventing fires is removed after fire proofing material semi-solid preparation；Fire proofing material carries out last inspection and processing after being fully cured.The present invention can ensure that each wire connection terminal of cable termination effectively seal against fire prevention processing, greatly reduce that cable is on fire or the probability of breakdown equipment；Also reduce at the same time since local or indivedual wire connection terminals are on fire and cause the probability of fire spreading, the region that the intensity of a fire can also be isolated in when occurring even if accident beyond electrical equipment.
Description
Technical field
The invention belongs to electrical cable terminal processing techniques field, is to be related to a kind of electrical cable terminal to prevent specifically
The anti-breakdown treatment process of fire.
Background technology
Electrical cable terminal is the component for being connected cable with other electrical equipments, its service life decides cable
With the possibility of equipment long-term safety operation.The treatment process of cable termination is mostly relatively moisture-proof anti-insulation processing at present, and is lacked
Prevent fires anti-breakdown processing, it is difficult to which the long-term impact for being subjected to fault current, so that its junction easily produces insulation ag(e)ing, causes to hit
Wear burning apparatus.
Good electrical cable end process require terminals connect with core resistance is small and stable connection, have necessarily
Mechanical strength and vibration-resistant property, even if while after anti-ignition technique should ensure that longtime running, breakdown also simply damage cable without
Burning apparatus.
The content of the invention
The present invention is to solve electrical cable terminal lacks the technical problem for anti-breakdown processing of preventing fires at present, there is provided one
The anti-breakdown treatment process of kind electrical cable terminal fire prevention, is handled, prevention cable is on fire by the sealing fire prevention of pair of wire connection terminals
Or the generation of breakdown equipment.
In order to solve the above-mentioned technical problem, the present invention is achieved by following technical solution：
A kind of anti-breakdown treatment process of electrical cable terminal fire prevention, includes the following steps：
(1) after the completion of all wire connection terminals connection of cable terminal, pair of wire connection terminals carries out insulation and moisture processing and examines
Look into；
(2) the anti-breakdown processing mould of installation fire prevention outside the wire connection terminal of cable terminal；
The anti-breakdown processing mould of fire prevention is frame-shaped construction by two die assembly splits, two die assemblies one
End is hinged by axis pin, the other end is respectively arranged with handle；Two die assemblies can be by all wiring after including split
Terminal is trapped among enclosing therein, and the enclosing bottom is provided with the collet inwardly widened；The institute of one of them die assembly
State and 3-8 metallic channel is provided with enclosing, opening is arranged at the top of the metallic channel, bottom surface is arranged to arc, and is enclosed by described
Gear stretches out so that the cable that is connected of wire connection terminal by the anti-breakdown processing mould inside of the fire prevention respectively by each institute
Metallic channel is stated outwards to draw；
(3) determine that cable has arranged in the metallic channel of the anti-breakdown processing mould of the fire prevention by checking
Afterwards, cable end face gasket is installed in the metallic channel and carries out isolating seal；
The shape of cable end face gasket, which matches with the metallic channel and can fill the metallic channel, to be sealed,
Cable end face gasket is internally provided with the perforation for passing through cable, and the perforation is communicated with the opening upwardly extended
Groove；
(4) fire proofing material is injected in the anti-breakdown processing mould of the fire prevention, until the fire proofing material is by the fire prevention
Anti-breakdown processing mould fills；
(5) during the fire proofing material semi-solid preparation, the axis pin of the anti-breakdown processing mould of the fire prevention is extracted, passes through two
Handle opens the anti-breakdown processing mould of the fire prevention, and takes the anti-breakdown processing mould of fire prevention away；
(6) after the fire proofing material is fully cured, is checked to ensure that by Insulation Resistance Tester and occurred without electric leakage.
Preferably, the metallic channel in step (2) is arranged to five.
Preferably, the spacing between the metallic channel in step (2) is 10-15mm.
Preferably, the metallic channel in step (2) is 50-80mm by the outwardly extending length of the enclosing.
Preferably, the arc of the metallic channel lower part in step (2), its arc diameter are 40-60mm.
Preferably, angled transition is arranged between the metallic channel bottom in step (2) and the enclosing, this is tilted over
Cross and tilt down 40 ° -45 ° by circular arc starting of the metallic channel apart from the enclosing 10-15mm.
Preferably, the cable end face gasket in step (3) when mounted, first pass through its open slot be sleeved on it is described anti-
On the cable of the anti-breakdown processing mould inside of fire, then it is pushed into again along the cable in the metallic channel.
Preferably, the fire proofing material in step (4) is fire prevention calking or foaming agent.
Preferably, the time of the fire proofing material semi-solid preparation in step (5) is the 30min- filled after fire proofing material
In 60min.
Preferably, the time that the fire proofing material in step (6) is fully cured is the 150min- filled after fire proofing material
In 180min.
The beneficial effects of the invention are as follows：
The present invention makes the wire connection terminal of cable termination by way of injecting fire proofing material to anti-breakdown processing mould of preventing fires
It is fully wrapped around by fire proofing material, so that ensure that each wire connection terminal of cable termination has carried out effectively sealing against fire prevention processing,
Not only operating process is simple, process, but also greatly reduces that cable is on fire or the probability of breakdown equipment；Simultaneously because
All wire connection terminals have all carried out sealing fire prevention processing, also reduce since local or indivedual wire connection terminals are on fire and cause fire
The probability of gesture sprawling, the region that the intensity of a fire can also be isolated in when occurring even if accident beyond electrical equipment.
Brief description of the drawings
Fig. 1 is the anti-breakdown scheme of installation for handling mould of preventing fires in embodiment；
Fig. 2 is the anti-breakdown structure diagram for handling mould of preventing fires in embodiment；
Fig. 3 is the bottom view of Fig. 2；
Fig. 4 is the right view of Fig. 2；
Fig. 5 is the partial enlarged view of part A in Fig. 4；
Fig. 6 is the structure diagram of cable end face gasket.
In above-mentioned figure：1st, cable；2nd, wire connection terminal；3rd, electrical equipment；4th, axis pin；5th, handle；6th, enclosing；7th, collet；
8th, metallic channel；9th, cable end face gasket.
Embodiment
For that can further appreciate that the content of the invention, feature and the effect of the present invention, the following examples are hereby given, and coordinates attached drawing
Describe in detail as follows：
A kind of electrical cable terminal is present embodiments provided to prevent fires anti-breakdown treatment process, specifically according to following steps into
OK：
(1) as shown in Figure 1, after all wire connection terminals 2 of 1 terminal of cable are connected to related electric equipment 3, on request
Pair of wire connection terminals 2 carries out insulation and moisture processing.Check whether all wire connection terminals 2 meet insulation by Insulation Resistance Tester
Moisture-proof technological requirement, after no electric leakage to be checked, can carry out further work.
(2) as shown in Figure 1, installing anti-breakdown processing mould of preventing fires outside the wire connection terminal 2 of 1 terminal of cable, this is anti-
The anti-breakdown processing mould of fire should be able to surround all wire connection terminals 2 wherein.
As shown in Figures 2 to 4, prevent fires it is anti-breakdown processing mould be by before and after two die assemblies symmetrically split one
Rise, so as to form the cuboid frame-shaped construction of a upper lower open mouth.It is hinged in the middle part of one end of two die assemblies by axis pin 4
Together, it is respectively arranged with a handle 5 in the middle part of the other end of two die assemblies.Two die assemblies include enclosing 6 and bottom
Support 7, collet 7 is integrally connected to the bottom of enclosing 6, and inwardly widens relative to enclosing 6.Two die assemblies are stitched together
Afterwards, enclosing 6 can surround all wire connection terminals 2 wherein, so that fire proofing material solidified forming and by all wiring wherein
Terminal 2 is fully wrapped around, and collet 7 is primarily to the intensity of reinforcement enclosing 6, prevents its deformation.Positioned at being connected with cable 1 one
The die assembly of side is provided with five metallic channels 8, and the design of five wire casings can meet the electrical cable compatibility of a common core, three cores
Wiring requirement；Spacing between two neighboring metallic channel 8 is traditionally arranged to be 10-15mm.8 top of metallic channel be arranged to opening, under
Portion is arranged to lower arcuate surface, the i.e. longitudinal section with U-shaped；Enclosing 6 corresponding to metallic channel 8 offer U-shaped hole and with metallic channel 8 one
Side is fixedly connected, and for metallic channel 8 from enclosing 6 to anti-breakdown processing mold exterior extension of preventing fires, outwardly extending length is 50-
80mm.Metallic channel 8 is used to make the cable 1 that wire connection terminal 2 is connected by anti-breakdown processing mould inside of preventing fires respectively by each
Metallic channel 8 is outwards drawn, and the length and spacing of metallic channel 8 can meet the minimum bending radius requirement that common cable 1 is laid.
8 bottom surface of metallic channel uses arc structure form, and the requirement of its arc diameter is maintained at 40-60mm.With reference to shown in Fig. 5,8 bottom of metallic channel
Angled transition is arranged between end and enclosing 6, it is a that the initiating terminal of the angled transition, which is located at metallic channel 8 apart from 6 horizontal distance of enclosing,
At the position of=10-15mm, clearing end is located on the enclosing 6 of the lower section of metallic channel 8, the angle tilted down from initiating terminal to clearing end
Spend for b=40 ° -45 ° (angles between angled transition and horizontal line), to ensure the wiring and toward mould in metallic channel 8 of cable 1
Meet the minimum bending radius requirement that cable 1 is laid in tool during note fire proofing material, so that 1 crust of cable will not be hurt.
(3) after checking and determining that cable 1 arranges in the metallic channel 8 for preventing fires anti-breakdown processing mould,
Installation cable end face gasket 9 carries out isolating seal in metallic channel 8, to prevent the fire proofing material of injection from being flowed out along metallic channel 8.
As shown in fig. 6, the shape of cable end face gasket 9 matches with metallic channel 8, so that cable end face gasket 9 can be by conducting wire
The filling sealing of groove 8, the height of cable end face gasket 9 can be shorter than metallic channel 8, and cable end face gasket 9 is internally provided with energy
The perforation for enough passing through cable 1, perforation are communicated with the open slot upwardly extended.During installation, cable end face gasket 9 is first passed through
Open slot perforated on the cable 1 being sleeved in anti-breakdown processing mould of preventing fires, then again along cable 1 by cable
End face seal pad 9 is pushed into metallic channel 8.
(4) the anti-breakdown processing mould of fire prevention is installed, and is being prevented fires in metallic channel 8 after installation cable end face gasket 9
Injection fire proofing material in anti-breakdown processing mould, fire proofing material is fire prevention calking or foaming agent, for example, fire prevention calking can be by chlorination
Paraffin, china clay in powder etc. mix, and EVA expanded materials etc. can be selected in foaming agent.Wait the fire prevention prevented fires in anti-breakdown processing mould
After material fills, preventing fires anti-breakdown processing die top, unnecessary fire proofing material strikes off along its horizontal plane.
(5) when the fire proofing material semi-solid preparation (30min-60min generally after fire proofing material is filled) fire prevention, is extracted
The axis pin 4 of anti-breakdown processing mould, holds handle 5 and opens two die assemblies, and takes the anti-breakdown processing mould of fire prevention away, etc.
Treat that fire proofing material thoroughly cures completion.
(6) after fire proofing material thoroughly cures (150min-180min generally after fire proofing material is filled), insulated electro is passed through
Resistance tester checks insulation effect after its integrally curing, it is ensured that occurs without electric leakage.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited in upper
The embodiment stated, above-mentioned embodiment is only schematical, be not it is restricted, this area it is common
Technical staff in the case of present inventive concept and scope of the claimed protection is not departed from, may be used also under the enlightenment of the present invention
By make it is many in the form of specific conversion, these are belonged within protection scope of the present invention.
Claims (10)
- The anti-breakdown treatment process 1. a kind of electrical cable terminal is prevented fires, it is characterised in that include the following steps：(1) after the completion of all wire connection terminals connection of cable terminal, pair of wire connection terminals carries out insulation and moisture processing and checks；(2) the anti-breakdown processing mould of installation fire prevention outside the wire connection terminal of cable terminal；The anti-breakdown processing mould of fire prevention is frame-shaped construction by two die assembly splits, and two described die assembly one end lead to Cross that axis pin is hinged, the other end is respectively arranged with handle；Two die assemblies can be by all wire connection terminals after including split Enclosing therein is trapped among, the enclosing bottom is provided with the collet inwardly widened；The described of one of them die assembly encloses Block and be provided with 3-8 metallic channel, opening is arranged at the top of the metallic channel, bottom surface is arranged to arc, and from the enclosing to Outer extension, so that the cable that is connected of wire connection terminal described is led by each respectively by the anti-breakdown processing mould inside of the fire prevention Wire casing is outwards drawn；(3) determine that cable has arranged it in the metallic channel of the anti-breakdown processing mould of the fire prevention by checking Afterwards, cable end face gasket is installed in the metallic channel and carries out isolating seal；The shape of cable end face gasket, which matches with the metallic channel and can fill the metallic channel, to be sealed, described Cable end face gasket is internally provided with the perforation for passing through cable, and the perforation is communicated with the open slot upwardly extended；(4) fire proofing material is injected in the anti-breakdown processing mould of the fire prevention, until the fire prevention is prevented hitting by the fire proofing material Processing mould is worn to fill；(5) during the fire proofing material semi-solid preparation, the axis pin of the anti-breakdown processing mould of the fire prevention is extracted, passes through two handles The anti-breakdown processing mould of the fire prevention is opened, and takes the anti-breakdown processing mould of fire prevention away；(6) after the fire proofing material is fully cured, is checked to ensure that by Insulation Resistance Tester and occurred without electric leakage.
- The anti-breakdown treatment process 2. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (2) metallic channel in is arranged to five.
- The anti-breakdown treatment process 3. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (2) spacing between the metallic channel in is 10-15mm.
- The anti-breakdown treatment process 4. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (2) metallic channel in is 50-80mm by the outwardly extending length of the enclosing.
- The anti-breakdown treatment process 5. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (2) arc of the metallic channel lower part in, its arc diameter are 40-60mm.
- The anti-breakdown treatment process 6. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (2) angled transition is arranged between the metallic channel bottom and the enclosing in, the angled transition is by the metallic channel distance Circular arc starting at the enclosing 10-15mm tilts down 40 ° -45 °.
- The anti-breakdown treatment process 7. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (3) the cable end face gasket in when mounted, first passes through its open slot and is sleeved in the anti-breakdown processing mould of the fire prevention On the cable in portion, then it is pushed into again along the cable in the metallic channel.
- The anti-breakdown treatment process 8. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (4) fire proofing material in is fire prevention calking or foaming agent.
- The anti-breakdown treatment process 9. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (5) time of the fire proofing material semi-solid preparation in is to fill in the 30min-60min after fire proofing material.
- The anti-breakdown treatment process 10. a kind of electrical cable terminal according to claim 1 is prevented fires, it is characterised in that step (6) time that the fire proofing material in is fully cured is to fill in the 150min-180min after fire proofing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710087275.7A CN106786226B (en) | 2017-02-17 | 2017-02-17 | A kind of anti-breakdown treatment process of electrical cable terminal fire prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710087275.7A CN106786226B (en) | 2017-02-17 | 2017-02-17 | A kind of anti-breakdown treatment process of electrical cable terminal fire prevention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106786226A CN106786226A (en) | 2017-05-31 |
| CN106786226B true CN106786226B (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710087275.7A Active CN106786226B (en) | 2017-02-17 | 2017-02-17 | A kind of anti-breakdown treatment process of electrical cable terminal fire prevention |
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| CN113725775B (en) * | 2021-08-23 | 2023-04-07 | 湖州晨翼五金有限公司 | Insulating isolation board for electric appliance terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2761571B2 (en) * | 1991-02-14 | 1998-06-04 | 東京瓦斯株式会社 | Cable and cable termination method |
| CN202405736U (en) * | 2011-12-16 | 2012-08-29 | 中科动力(福建)电气科技有限公司 | Fireproof and explosion-proof box for ultrahigh-voltage cable middle joint |
| CN105977899B (en) * | 2016-05-11 | 2018-12-28 | 姜涛 | Intermediate joint of electric cable fireproof anti-explosion device |
| CN106058788B (en) * | 2016-06-06 | 2017-10-31 | 国网江西省电力公司九江供电分公司 | Fire-proof and explosion-proof structure and its application method at cable intermediate joint |
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- 2017-02-17 CN CN201710087275.7A patent/CN106786226B/en active Active
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| CN106786226A (en) | 2017-05-31 |
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