CN108828369A - Seepage of water experimental rig at power cable connector - Google Patents
Seepage of water experimental rig at power cable connector Download PDFInfo
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- CN108828369A CN108828369A CN201810780669.5A CN201810780669A CN108828369A CN 108828369 A CN108828369 A CN 108828369A CN 201810780669 A CN201810780669 A CN 201810780669A CN 108828369 A CN108828369 A CN 108828369A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
Abstract
Seepage of water experimental rig at power cable connector,For electric system field of cable technology,Including outter box,The assembly end cap that outter box port is sealed,End cover A and sealing ring A,Air boost pump,Insulating megger and control panel end,Cable, which is connected with transition joint and makees antiseepage water process, is placed on outter box,Water is filled into outter box from water injection pipe to water full of water injection pipe,Then the free end of water injection pipe is connect with air boost pump,Insulating megger is placed in the both ends outside outter box for connection cables,Air boost pump,Pressure sensor connects control panel end,It, which can be realized, prevents the application performance of means from carrying out the purpose of experimental test different leakage,To continue to optimize,Promote the development of waterproof means at cable intermediate joint,Suitable environment for different preventing sailor's section provides guidance,Deposit into the adaptation to local conditions of cable laying,Technical parameter guidance is provided for making rational planning for for laying,Reducing joint leads to the probability of cable line fault.
Description
Technical field
The present invention relates to electric system field of cable technology, and in particular to is seepage of water experimental rig at power cable connector.
Background technique
By long-term use, water or tide vapour can enter cable interior to cable, can increase the decaying of fiber transmission performance, again
The micro-crack of optical fiber surface can be made constantly to extend until fibercuts.Meanwhile corrosion and and metal material are caused to metal reinforcement
Material, which reacts, causes the hydrogen loss of optical fiber, to seriously affect the service performance and service life of optical cable.
Main hop is conductor lines in cable, after conductor lines water leaking-in, can make conductor lines accelerated oxidation, cause
The shortening of cable life.After infiltering water in cable, the insulation performance of cable will affect, therefore most communication cable needs
Material water-proof material is placed in cable core.The element that optical cable is transmitted as signal, major part are optical fiber, and optical fiber is by high-purity
Silica, when there is water to enter, micro-crack on tiny optical fiber with reacting for silica can cause hydrogen loss due to water,
The fracture that will cause optical fiber when serious, influences optic communication, so outdoor optical cable for communication almost all requires total cross-section to block water.State
Family's standard defines the infiltration test method of various cables, such as core net optical cable YD/T 901-2009 layer-twisted type communication room
, it is specified that optical cable needs total cross-section to block water in outer optical cable, it is desirable that be 3 meters of long optical cables of interception, one end adds 1 meter high of water column to be formed
Hydraulic pressure, in 24 hours, the other end should not have water exudation；Under factory condition, due to large-scale serial production, it is difficult to accomplish to every
Piece optical cable test within 24 hours, usually uses substitution method, using slightly shorter optical cable, such as 1 meter, under same hydraulic pressure, and 1
The other end is impermeable in hour, ensures that the permeability performance of optical cable meets 3 meters of requirements in 24 hours.
In view of a kind of parameter for having become cable quality standard to the detection of cable seepage of water at present, so under normal circumstances
The seepage of water of cable itself requires all reach basic demand when leaving the factory.In the actual process or in daily cable maintenance
In the process, often there is the connection between cable socket, need to use transition joint.So in real work cable fault production
Life is mostly in the link position of cable, so needing to prevent fires to the jointing of cable, being explosion-proof, infiltration processing.Currently,
In the connection construction of cable, after being connected with transition joint, diversification has been presented in the water-proofing treatment means taken, and for each
The specific water-impervious application performance of kind method also lacks dedicated testing inspection means.
Summary of the invention
For the problem that current cable connection joint position, infiltration can lack testing inspection, and of the invention provides
Seepage of water experimental rig at a kind of power cable connector, realization prevent the application performance of means from carrying out test survey different leakage
The purpose of examination, to continue to optimize, promote the development of waterproof means at cable intermediate joint, reducing joint leads to cable run event
The probability of barrier.
The technical scheme adopted by the invention to solve the technical problem is that：
Seepage of water experimental rig at a kind of power cable connector, including outer box made of being fastened as upper half outer box and lower half outer box
Body is connected to the assembly end cap of outter box left and right ends mouthful and end cover A, sealing ring A that assembly side covers is arranged in, empty
Gas booster pump, insulating megger and control panel end.
Upper half outer box, lower half outer box：
Corresponding type groove is set in the upper half outer box, lower half outer box, and axial prolong is respectively set in type groove port two sides
The flange stretched；Sawtooth pattern face one is set in inside on the lower end surface of the flange of upper half outer box；Accordingly, in the convex of lower half outer box
Sawtooth pattern face two is set in inside on the upper surface of edge.
Type face contact cooperation between sawtooth pattern face one and sawtooth pattern face two after the upper half outer box, lower half outer box fasten, and on
Half outer box and lower half outer box pass through be arranged on flange bolt connect；Water injection pipe and pressure are set on the roof of upper half outer box
Sensor, the pressure sensor connect air boost pump.
Assemble end cap：
The assembly side is covered with axial cylindrical chamber, one end for connecting with outter box setting flange, flange outer end face it is interior
Side sets annular convex platform one, and annular convex platform one is corresponded on outter box and sets groove body embedded with sealing ring；In the other end, by the assembly
The cylindrical chamber of end cap is set as threaded hole, and threaded hole axially extends to the middle part of assembly side lid cylindrical chamber, corresponding in threaded hole
Annular flange is arranged in end position in cavity wall；Setting is embedded with the annular groove of sealing ring on the outer end face of annular flange.
End cover A：
The end cover A also sets axial cylindrical chamber, and one end of end cover A cylindrical chamber is set as first of big opening end outwardly
Bellmouth.
The end cover A is threaded in the threaded hole of the assembly end cap.
Sealing ring A：
The outer end of the sealing ring A outer wall is set as the first tapered surface, and embedded cushion rubber is arranged on inner wall, setting and assembly on inner face
The annular convex platform two of annular groove cooperation in the annular flange of end cap.
After installation, the annular flange of the opposite assembly end cap of the inner wall of the sealing ring A extends radially inwardly certain distance；
The first bellmouth of end cover A is engaged with the first tapered surface of sealing ring A.
Cable is connected with transition joint and makees antiseepage water process and is placed in outter box, and both ends are from being arranged in outer box body or so
The end cover A at end, the axis hole of sealing ring A are pierced by；It is completed after blocking with inner cavity of the end cover A and sealing ring A to outter box
Water is filled into outter box from water injection pipe to water full of water injection pipe, then connect the free end of water injection pipe with air boost pump；
The insulating megger connecting cable is placed in the both ends outside outter box.
The air boost pump, pressure sensor connect control panel end；On control panel end be arranged timing module and
Alarm module.
It further, further include moisture transducer, the moisture transducer is connected to the both ends end that cable is placed in outside outter box
Portion is connect with control panel end.
It further, further include the end cover B and sealing ring B for being tubular；The intracavitary end of end cover Type B is set as big
The second bellmouth of mouth end outwardly；The outer wall of the sealing ring B is set as the second tapered surface and second bellmouth cooperates, described
The inner wall of sealing ring B is set as big opening end third bellmouth outwardly and the minimum diameter of third bellmouth is made to be equal to the outer of cable
Diameter；It is to be threadedly coupled between the outer wall of the end cover B and the internal chamber wall of the end cover A.
The cable ends of connection from the axis hole that the end cover A of outer box portion left right end, sealing ring A are set pass through after again by
End cover B, sealing ring B axis hole be pierced by.
Further, the sawtooth pattern face one is made of in and face a2, face b2, face c2 outside, and accordingly, sawtooth pattern face two is certainly
It is interior and be made of outside face a1, face b1, face c1；In the joining place of the face a1 and face b1 in the sawtooth pattern face two, cylindrical groove is set,
Cylindrical seal item is set in cylindrical groove and the cylindrical groove at the upper end opposite face a1 and face b1 of cylindrical seal item is made to protrude outward one
Part, and cylindrical groove is arranged in joining place of the corresponding protrusion in the face a2 and face b2 in sawtooth pattern face one.Will be outside upper half
Sawtooth pattern face one and sawtooth pattern face two completely attach to after box is connect with lower half outer box and cylindrical seal item is included completely in face a1
In the slot formed with face b1, face a2 and face b2.
Further, the sawtooth pattern face one, sawtooth pattern face two are frosting.
The beneficial effects of the invention are as follows：
It, which can be realized, prevents the application performance of means from carrying out the purpose of experimental test different leakage, to continue to optimize, promote
The development of waterproof means at into cable intermediate joint, the suitable environment for different preventing sailor's section provide guidance, deposit into cable laying
Adaptation to local conditions, for laying make rational planning for provide technical parameter guidance, can reduce joint leads to cable line fault
Probability.The increase of end cover B and sealing ring B are arranged, and improve the leakproofness of outter box, outer box intracoelomic cavity is enable to bear more
High static hydraulic pressure further increases the reliability of test sealing pressure maintaining link.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the partial enlargement structural representation that I goes out in Fig. 1；
Fig. 3 is the split type cross section structure schematic diagram of the outter box position A-A shown in Fig. 1 in the present invention；
Fig. 4 is the axial cross section structural schematic diagram that end cap is assembled in the present invention；
Fig. 5 is the left view structural representation that end cap is assembled in the present invention；
Fig. 6 is the cross section structure schematic diagram of end cover A in the present invention；
Fig. 7 is the left view structural representation of end cover A in the present invention；
Fig. 8 is the cross section structure schematic diagram of sealing ring A in the present invention；
Fig. 9 is the left view structural representation of sealing ring A in the present invention；
The cross section structure schematic diagram of end cover B in Figure 10 present invention；
Figure 11 is the cross section structure schematic diagram of sealing ring B in the present invention；
In figure：1 outter box, 11 upper half outer box, 111 water injection pipes, 112 pressure sensors, 12 lower half outer box；10 flanges, 100 cylindricalitys
Sealing strip, 101 sawtooth pattern faces one, 102 sawtooth pattern faces two, 103 strip grooves；2 assembly end caps, 21 threaded holes, 22 annular flanges,
230 sealing rings, 231 annular convex platform one；3 end cover A, 31 first bellmouths；4 sealing ring A, 41 first tapered surfaces, 42 is embedded
Cushion rubber, 43 annular convex platform two；5 end cover B, 51 second bellmouths；6 sealing ring B, 61 second tapered surfaces, 62 third bellmouths；
7 cables.
Specific embodiment
Technology contents of the invention for ease of understanding are below just described further its technical solution in conjunction with attached drawing.
Seepage of water experimental rig at a kind of power cable connector as shown in Figure 1, including by upper half outer box 11 and lower half outside
Outter box 1 made of box 12 fastens, the assembly end cap 2 for being connected to 1 left and right ends of outter box mouthful and setting are on assembly end cap 2
End cover A 3, sealing ring A 4, air boost pump, insulating megger and control panel end.
As shown in Figure 1, Figure 3, corresponding type groove is set in the upper half outer box 11, lower half outer box 12, and in type groove
Axially extending flange 10 is respectively set in transverse port two sides.Type groove is set as semicircle shape as shown in Figure 3 herein.In upper half outer box
On the lower end surface of 11 flange 10, sawtooth pattern face 1 is set on the inside of flange 10, is arranged on the outside of flange 10 axially extending
Strip groove 103；Accordingly, on the upper surface of the flange 10 of lower half outer box 12, sawtooth pattern face two is set on the inside of flange 10
102, axially extending strip groove 103 is set on the outside of flange 10.The setting of strip groove 103 in corresponding flange 10 is along axial uniformly distributed
Row's vertical through hole, make assembly connection upper half outer box 11 and be used with lower half outer box 12.The upper half outer box 11, lower half outer box 12
After fastening, sawtooth pattern face 1 is engaged with sawtooth pattern face 2 102, is passed through after sealing strip is set in strip groove 103 by bolt
Vertical through hole and upper half outer box 11 and lower half outer box 12 are fixed with one to form outter box 1.As shown in Figure 1, Figure 3, outter box 1
It is elliptical cylinder in cross section, lumenal cross-section is oval as shown in Figure 3.
For the connection sealing for reinforcing upper half outer box 11 and 12 longitudinal edge of lower half outer box, tied in above-mentioned inside and outside two layers of sealing
Structure（Sawtooth moulding surface structure and bar shaped slot structure）On the basis of, further by the sawtooth pattern face 1, sawtooth pattern face 2 101
Outer end face be set as frosting.Or as shown in figure 3, making the sawtooth pattern face 1 in and outside by face a2, face b2, face c2
It constitutes, accordingly, sawtooth pattern face 2 102 is in and is made of outside face a1, face b1, face c1, and in the sawtooth pattern face 2 102
Cylindrical groove is arranged in the joining place of face a1 and face b1, and cylindrical seal item 100 is set in cylindrical groove and makes the upper of cylindrical seal item 100
Cylindrical groove at end opposite face a1 and face b1 protrudes outward a part, and the corresponding protrusion is in the face in sawtooth pattern face 1
Cylindrical groove is arranged in the joining place of a2 and face b2.After upper half outer box 11 are connect with lower half outer box 12, sawtooth pattern face, 101 with
Sawtooth pattern face 2 102 completely attaches to and cylindrical seal item 100 is included the slot formed in face a1 and face b1, face a2 and face b2 completely
In.
As shown in Fig. 1-Fig. 2 and Fig. 4-Fig. 5, the assembly end cap 2 is equipped with axial cylindrical chamber, connect with outter box 1
One end flange is set, set annular convex platform 1 on the inside of flange outer end face, corresponded on outter box 1 annular convex platform 1 set it is embedding
Groove body equipped with sealing ring 230（The groove body is separately positioned in upper half outer box 11 and lower half outer box 12, semicircular in shape slot, upper half
Outer box 11 and lower half outer box 12 form circular trough after docking and corresponding with annular convex platform 1）.As shown in Fig. 2, Fig. 4, annular
The inner ring surface of boss 1 is the taper hole face of big opening end outwardly, to guarantee to connect sealing effect.In the other end（It is shown in Fig. 2
Left end）, the cylindrical chamber of the assembly end cap 2 is set as threaded hole 21, and threaded hole 21 axially extends in assembly 2 cylindrical chamber of end cap
Annular flange 22 is arranged corresponding to the inner end positions of threaded hole 21 in portion in the cavity wall of assembly end cap 2.In annular flange 22
Setting is embedded with the annular groove of sealing ring 230 on outer end face.The left and right for assembling annular flange on end cap 2 should be big by one to thickness
A bit, to guarantee that enough axial depths can be provided with embedded with the annular groove of sealing ring 230 thereon.
As shown in Fig. 1-Fig. 2 and Fig. 6-Fig. 7, the end cover A 3 also sets axial cylindrical chamber, and end cover A 3
One end of cylindrical chamber is set as the first bellmouth 31 of big opening end outwardly.Cylindrical chamber axis of first bellmouth 31 along end cover A 3
To extension ratio in 1/2 to 3/4 axial length interval range.The end cover A 3 is threaded in the screw thread of the assembly end cap 2
21 in hole.
As shown in Fig. 1-Fig. 2 and Fig. 8-Fig. 9, the outer end of 4 outer wall of sealing ring A is set as the first tapered surface 41, on inner wall
Embedded cushion rubber 42 is set, the annular convex platform 2 43 of setting and annular groove cooperation in the annular flange 22 of assembly end cap 2 on inner face.
After installation, the annular flange 22 of the opposite assembly end cap 2 of the inner wall of the sealing ring A 4 is extended radially inwardly centainly
Distance；The first bellmouth 31 of end cover A 3 is engaged with the first tapered surface 41 of sealing ring A 4.
Cable 7 is connected with transition joint and makees antiseepage water process and is placed in the lower half outer box 12 of outter box 1, and both ends are from setting
It sets and is pierced by the end cover A 3 at the end of outter box 1 or so, the axis hole of sealing ring A 4；Then it fastens outside upper half outer box 11 and lower half
On box 12, it is tightly connected counterface between the two.Water injection pipe 111 and pressure are provided on the roof of upper half outer box 11
Force snesor 112.
It completes to block with inner cavity of the end cover A 3 and sealing ring A 4 to outter box 1, makes outter box 1 except water injection pipe 111
Except other mating surfaces seal.Water is filled into outter box 1 from water injection pipe 111 to water full of water injection pipe 111（Water injection pipe 111
There is certain axial length）, then the free end of water injection pipe 111 is connect with air boost pump.Made by air boost pump outer
Hydraulic pressure in box body 1 increases to setting range section, and keeps hydraulic pressure in this section.Specific hydraulic pressure value should be according to different
Cable model and its environment used determine, but are at least greater than the hydraulic pressure value of 3 meter water columns formation.The hydraulic pressure value of setting, root
According to factors such as the difference of the axial length of two end cables, the differences of cable model, tested in conjunction with the seepage of water of current normal cable
National standard is reference, is converted.The air boost pump, pressure sensor connect control panel end, pass through control panel
End sets air boost pump, and when the hydraulic pressure in outter box is less than setting value, signal is fed back to control by pressure sensor
Adjusting is made by working condition of the control panel end to air boost pump in panel end processed.Timing mould is set on control panel end
Block and alarm module.According to test requirements document, the time of timing module setting test, generally at 14 to 30 days.Go out during test
When existing abnormal condition, alarm module alarm and feed back danger signal, cuts off the operation of air boost pump.
At least the beginning of test and at the end of, be placed in the both ends outside outter box with the insulating megger connecting cable, it is right
The insulation resistance of cable measures, and the data list of measurement is recorded.In this test, because influencing cable insulation
There are also the influences of temperature, electric field strength and electric property etc. for the extraneous factor of resistance, so should ensure that when setting comparative test
The differentiating factor of itself and this test is only limited in the water for being placed in certain pressure at transition joint in this test.In test
Between the stage, taken multiple measurements preferably by insulation resistance of the insulating megger to cable ends, and record data.It finally will record
Data carry out analysis comparison.Work as insulating resistance value（Each self-grouping of the record value at both ends）When amplitude of variation is very big, then show to seep
Aqueous encapsulation process is unqualified, needs to improve.In the multiple insulation measurement of intermediate progress, can learn specific anti-
The water-stop out-of-service time.
During realizing entire test, to the real time monitoring of cable ends infiltration failure state, in the design also
Include moisture transducer and is connect with control panel end.The moisture transducer is connected to two that cable 7 is placed in outside outter box
Hold end.Moisture transducer is connect with the alarm module at control panel end, the cable moisture value feedback that will test to control
Panel end.After cable connector water leaking-in, arrived along cable transmission；Both ends and be detected after, alarm module is just alarmed, in this way can and
Shi Zhidao jointing water-impervious processing failure as a result, avoid failure after continue to make useless test, reduce test period
Waste, convenient for making adjustment in time.
Furthermore it should be noted that test in, make the hydraulic pressure value in outter box 1 in certain interval range, carry out from
Dissipate formula grouping（Comparative test group is respectively set in every group）, to help to obtain reliable experimental result, because only setting one
Group hydraulic pressure value inevitably by the too large or too small of hydraulic pressure value setting, and leads to reorganization test failure or misidentification rapidly
It to be reliable, and cannot accurately learn under this water-impervious connection type, how is specific waterproof sealing effect.
In the structure shown in the present apparatus, the function of outter box 1 is to provide closed type chamber for the holding of hydraulic pressure, in outter box
Sealing element provided around 1, which such as assembles end cap 2, end cover A 3, sealing ring A 4, enables its inner cavity to the closure of outter box 1
Unlikely significant leakage when enough bearing certain hydraulic pressure, so that the high pressure static holding for test provides condition.
It as shown in Figure 1 and Figure 2, further include the end cover B 5 and sealing ring B 6 for being tubular.
As shown in Figure 1, Figure 2, shown in Figure 10, Figure 11, the intracavitary end of 5 type of end cover B is set as the second cone of big opening end outwardly
Shape hole 51；The outer wall of the sealing ring B 6 is set as the second tapered surface 61 and cooperates with second bellmouth 51, the sealing ring B
6 inner wall is set as big opening end third bellmouth 62 outwardly and the minimum diameter d of third bellmouth 62 is made to be equal to the outer of cable 7
Diameter.It is to be threadedly coupled between the outer wall of the end cover B 5 and the internal chamber wall of the end cover A 3.
The third bellmouth 62 of sealing ring B 6 makes its minimum diameter d be equal to the outer diameter of cable and place towards inside, mesh
Be the contact area for reducing opposite cable under initial state, with can be along the axis of cable under the action of end cover B 5
It is withstood on the outer end face of sealing ring A 4 to sliding a distance, taper cannot be excessive, it is therefore an objective in sealing ring B 6
After end face is withstood on the outer end face of sealing ring A 4, the extruding by the second bellmouth 51 can guarantee, third bellmouth 62 after deformation
Completely with the appearance face contact of cable, achieve the purpose that sealing.Cable is pierced by by the axis hole of end cover A 3, sealing ring A 4
Afterwards, then by the axis hole of end cover B 5, sealing ring B 6 it is pierced by.When assembly is completed to enter the test preparation stage, sealing ring A
4, the effect by end cover A 3, end cover B 5 respectively of sealing ring B 6, and make its axis hole（Bellmouth）Outside cable
Wall is in close contact, and realizes axial dual-seal.
In above-mentioned improvement structure, end cover A 3 and sealing ring A 4, end cover B 5 are with sealing ring B 6 by interior
And the outer circumferential surface slit-shaped to cable 7 at it is dual it is close more, thus make sealing after outter box 1 be able to bear bigger internal pressure（One
As in the case of outter box 1 upper half outer box 11 and lower half outer box 12 between connection sealing effect can be better than outter box 1 and cable
Connection sealing effect between circumferential surface can be improved thus after the weak left and right ends setting double sealing structure of leakproofness
The internal pressure that outter box 1 is born）.
Except for the technical features described in the specification, it all is technically known to those skilled in the art.
Claims (1)
1. seepage of water experimental rig at a kind of power cable connector, it is characterised in that：Including by upper half outer box and lower half outer box button
Outter box made of conjunction, the assembly end cap for being connected to outter box left and right ends mouthful and the end cover that assembly side covers is set
A, sealing ring A, air boost pump, insulating megger and control panel end；It is arranged in the upper half outer box, lower half outer box corresponding
Type groove, and axially extending flange is respectively set in type groove port two sides；In interior on the lower end surface of the flange of upper half outer box
Sawtooth pattern face one is arranged in side；Accordingly, sawtooth pattern face two is set in inside on the upper surface of the flange of lower half outer box；On described
Type face contact cooperation between sawtooth pattern face one and sawtooth pattern face two after half outer box, lower half outer box fasten, and outside upper half outer box and lower half
Box passes through that the bolt being arranged on flange connects；Water injection pipe and pressure sensor, the pressure are set on the roof of upper half outer box
Force snesor connects air boost pump；The assembly side is covered with axial cylindrical chamber, one end setting connecting with outter box
Flange sets annular convex platform one on the inside of flange outer end face, and annular convex platform one is corresponded on outter box and sets groove body embedded with sealing ring；
In the other end, the cylindrical chamber of the assembly end cap is set as threaded hole, threaded hole axially extends in assembly side lid cylindrical chamber
Annular flange is arranged corresponding to the inner end positions of threaded hole in portion in cavity wall；It is arranged on the outer end face of annular flange and is embedded with
The annular groove of sealing ring；The end cover A also sets axial cylindrical chamber, and one end of end cover A cylindrical chamber is set as big mouth
The first bellmouth of end outwardly；The end cover A is threaded in the threaded hole of the assembly end cap；The sealing ring A
The outer end of outer wall is set as the first tapered surface, and embedded cushion rubber is arranged on inner wall, the annular flange of setting and assembly end cap on inner face
The annular convex platform two of upper annular groove cooperation；After installation, the annular flange of the opposite assembly end cap of the inner wall of the sealing ring A is radial
Extend internally certain distance；The first bellmouth of end cover A is engaged with the first tapered surface of sealing ring A；During cable is used
Between connector connect and make antiseepage water process and be placed in outter box, both ends are from the end cover A, close that outer box portion left right end is arranged in
The axis hole of seal ring A is pierced by；The inner cavity of outter box is completed after blocking from water injection pipe to outter box with end cover A and sealing ring A
Water is inside filled to water full of water injection pipe, then connect the free end of water injection pipe with air boost pump；The insulating megger connection
Cable is placed in the both ends outside outter box；The air boost pump, pressure sensor connect control panel end；On control panel end
Timing module and alarm module are set；It further include moisture transducer, the moisture transducer is connected to cable and is placed in outside outter box
Both ends end connect with control panel end；It further include the end cover B and sealing ring B for being tubular；The end cover Type B
Intracavitary end is set as the second bellmouth of big opening end outwardly；The outer wall of the sealing ring B is set as the second tapered surface and second cone
The cooperation of shape hole, the inner wall of the sealing ring B are set as big opening end third bellmouth outwardly and make the minimum diameter of third bellmouth
Equal to the outer diameter of cable；It is to be threadedly coupled between the outer wall of the end cover B and the internal chamber wall of end cover A；The sawtooth
Type face one is in and is made of outside face a2, face b2, face c2, and accordingly, sawtooth pattern face two is in and outside by face a1, face b1, face c1
It constitutes；Cylindrical groove is set in the joining place of the face a1 and face b1 in the sawtooth pattern face two, cylindrical seal item is set in cylindrical groove
And the cylindrical groove at the upper end opposite face a1 and face b1 of cylindrical seal item is set to protrude outward a part, and the corresponding protrusion exists
Cylindrical groove is arranged in the joining place of the face a2 and face b2 in sawtooth pattern face one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780669.5A CN108828369B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780669.5A CN108828369B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
| CN201610399406.0A CN106092852B (en) | 2016-06-06 | 2016-06-06 | Seepage of water experimental rig at power cable connector |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399406.0A Division CN106092852B (en) | 2016-06-06 | 2016-06-06 | Seepage of water experimental rig at power cable connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108828369A true CN108828369A (en) | 2018-11-16 |
| CN108828369B CN108828369B (en) | 2020-09-08 |
Family
ID=57227966
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399406.0A Active CN106092852B (en) | 2016-06-06 | 2016-06-06 | Seepage of water experimental rig at power cable connector |
| CN201810780670.8A Expired - Fee Related CN108828370B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
| CN201810780669.5A Active CN108828369B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
| CN201810780624.8A Active CN108828368B (en) | 2016-06-06 | 2016-06-06 | Water permeability test device for power cable joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108181208A (en) * | 2017-12-20 | 2018-06-19 | 中国电力科学研究院有限公司 | A kind of device and method for being examined to cable connector water-resisting ability |
| CN109557430A (en) * | 2018-11-19 | 2019-04-02 | 国网北京市电力公司 | A method of detection cable dielectric properties are filled the water by connector |
| CN109541320A (en) * | 2018-11-19 | 2019-03-29 | 国网北京市电力公司 | A method of measurement moisture influences cable loss factor |
| CN117092313A (en) * | 2019-06-21 | 2023-11-21 | 福建师范大学地理研究所 | Carbon flux synchronous measurement experimental equipment |
| CN110333173A (en) * | 2019-06-25 | 2019-10-15 | 宁波东方电缆股份有限公司 | A kind of sealing structure of sea cable apparatus for permeability test |
| CN111965446B (en) * | 2020-07-13 | 2021-05-25 | 华南理工大学 | Experimental method for evaluating different water inflow and damp states of power cable |
| CN113932998A (en) * | 2021-11-03 | 2022-01-14 | 深圳供电局有限公司 | Device and method for testing sealing performance of cable intermediate joint |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108828370B (en) | 2020-09-11 |
| CN108828368A (en) | 2018-11-16 |
| CN106092852A (en) | 2016-11-09 |
| CN108828369B (en) | 2020-09-08 |
| CN108828368B (en) | 2020-10-02 |
| CN106092852B (en) | 2018-10-09 |
| CN108828370A (en) | 2018-11-16 |
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