CN102290645A - Multi-core cable joint and mounting method thereof - Google Patents
Multi-core cable joint and mounting method thereof Download PDFInfo
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- CN102290645A CN102290645A CN2011101980836A CN201110198083A CN102290645A CN 102290645 A CN102290645 A CN 102290645A CN 2011101980836 A CN2011101980836 A CN 2011101980836A CN 201110198083 A CN201110198083 A CN 201110198083A CN 102290645 A CN102290645 A CN 102290645A
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Abstract
The invention relates to a multi-core cable joint, which comprises a joint, a shell and insulated balancing wedge cones; the structural layers of corresponding core wires of two multi-core cables are correspondingly connected end to end by the joint; the shell is arranged on the outmost layer; the balancing wedge cones are arranged between the forks of the core wires of the multi-core cables and the joint, each balancing wedge cone comprises a conical head and a cylindrical correcting tail, moreover, passages for correcting the core wires, in which the core wires can be suitably inserted and the number of which is equal to the number of the core wires, are axially and evenly arranged on the side of each balancing wedge cone, each passage comprises an open sloped channel part, which is extended to the side of the conical head and in which the core wire can be suitably inserted, and the tip of each conical head can be suitably inserted into the center of the core wire cluster of the multi-core cable to evenly separate the core wires in the core wire cluster along the sloped channel parts and correct the separated core wires by means of the passages. The multi-core cable joint provided by the invention can evenly separate the core wires and prevent the deformation and expansion of the core wires in the process of evenly separating the core wires.
Description
Technical field
The present invention relates to a kind of cable connecting arrangement and installation method, the transition joint of specifically a kind of middle pressure multicore cable is with its installation method.
Background technology
Along with the development of China's power construction, electricity needs constantly soaring, in order to reduce the power transmission and transformation cost and to reduce the power transmission and distribution loss, middle voltage source enters directly that to carry out power distribution with electrfic centre be very general.The medium-pressure power cable demand is increasing, and is to need two or many power cables butt joints setting up electrical network, then according to the characteristic of the construction of cable, at joint each structure sheaf of cable is recovered, to guarantee the key property of cable, therefore, transition joint seems in this problem and is even more important.In the prior art, in the processing of three-core cable butt joint, all be that three heart yearns of the free-hand cable that stripping is handled well of technical staff strut, then according to dimensional requirement difference stripping heart yearn, refill transition joint, hold with water blocking tape and armoring tape, thus the butt joint of realization three-core cable.And in the prior art, this free-hand mode that struts heart yearn, the unordered mixed and disorderly distribution of heart yearn after often causing strutting, flexural deformation and swollen outwardly radially opening, and the unordered mixed and disorderly distribution of heart yearn causes the inequalities that distribute such as the electric field in the transition joint easily, and the flexural deformation of heart yearn and swollen outwardly radially opening, not only cause the bending of inner each layer of heart yearn to be moved easily with relative, thereby cause and the gap occurs between the cable core interior layer and cause the joint internal discharge easily, simultaneously, because heart yearn is harder, after installing transition joint on the heart yearn of butt joint, heart yearn still has the outwards swollen trend of opening, so cause stress cone and internal shield generation serious deformation in the transition joint to be damaged easily, has certain potential safety hazard.A kind of 15KV and following three core oils that propose as Chinese patent literature CN2137829Y soak the transition joint of paper insulation power cable resin-cast, this three core oil soaks the transition joint of paper insulation power cable resin-cast and is made up of housing and internal structure, cloth intercoil connection in the inner walls plating screen, screen.Open the sprue gate on the housing, exhaust outlet, air slot.Card insulation support plate in the housing, with three cores support separate guarantee alternate and.Respectively wrap viscosity oil resistant clay on insulation and the tape insulation mutually, skin is tied tight with the alkali glass silk ribbon.Cast oil resistant insulating synthetic resin pouring agent in the housing.
In addition, in the prior art, imperfection is gone back in the processing that holds to transition joint, be mainly reflected in: all heart yearns of cable are after loading onto transition joint respectively, external application water blocking tape and armoring tape one circle circle carry out spiral hold make it to tie into a branch of, make the cable butting place of holding be irregular triangular shape, and the outline of triangular shape is when being subjected to the weight extruding, hold band and occur groove easily with the lap-joint that holds band, caused and held surface ponding easily, thereby cause the inner infiltration easily of cable butting, in the useful life that this has reduced transition joint undoubtedly, be easy to cause the generation of cable line fault.
Summary of the invention
For this reason, technical problem to be solved by this invention be three-core cable transition joint in the prior art heart yearn separately be to cause the unordered mixed and disorderly distribution of heart yearn by free-hand finishing, flexural deformation and swollen outwardly radially opening, thereby cause stress cone and internal shield generation gross distortion in the transition joint to damage, and the bending of inner each layer of cable is moved with relative, thereby cause the problem that the gap occurs between the cable interior layer and cause the joint internal discharge easily, provide a kind of and can divide equally heart yearn, and in dividing equally the process of heart yearn, can prevent swollen multicore cable transition joint and the installation method of opening thereof of heart yearn distortion.
For solving the problems of the technologies described above, a kind of multicore cable transition joint of the present invention comprises
Jointing, described jointing are used to realize the butt joint one by one of each structure sheaf of the corresponding heart yearn of two multicore cables;
Housing, described housing is arranged on outermost one deck, and the two ends of described housing are suitable for respectively being connected with the body seal of two described multicore cables;
Also comprise insulation, be arranged on the heart yearn crotch and the awl of the balance wedge between the described jointing of described multicore cable, described balance wedge awl comprises conical head and cylindrical correction afterbody, and axially be provided with equably on the side of described balance wedge awl and be fit to that described heart yearn inserts, what number was consistent with described heart yearn number plays the passage of corrective action to described heart yearn, described passage comprises on the side that extends to described conical head, be fit to described heart yearn smooth out with the fingers into opening skewed slot part, the tip of described conical head is fit to insert the heart yearn cluster centre of described multicore cable, so that the described heart yearn in the described heart yearn group is along described access ramp part evenly separately, and the heart yearn that separates by described channel correcting.
Described passage is the opening tank circuit.
Also form several material-saving holes on the described balance wedge awl.
Also comprise insulation, be arranged between described balance wedge awl and the described jointing, as far as possible near the columniform balance fixed block of described jointing, form on the described balance fixed block with described passage distribute consistent, the correction hole that supplies described heart yearn to pass.
Also be provided with province's hopper on the described balance fixed block.
Comprise that also described insulating barrier centers on from described heart yearn crotch to the core wire segment setting between the described jointing to described balance fixed block and the spacing insulating barrier of described balance wedge awl.
Described housing is by the containment vessel that is arranged on innermost layer; be arranged on the waterproof belt of the second layer; and being arranged on outermost armouring belt formation, wherein said containment vessel is by the cylindrical shape containment vessel in the middle of being arranged on, and the taper containment vessel formation that is arranged on described cylindrical shape containment vessel two ends.
Described containment vessel and described balance fixed block interference fits.
The described cylindrical shape containment vessel of described containment vessel and described balance fixed block interference fits.
Described taper containment vessel is by the conical transition part of centre; be arranged on the two ends of described conical transition part; the great circle tubular butt end portion of docking with described cylindrical shape containment vessel respectively, and the roundlet tubular that is connected with the described shell of described multicore cable connects the end formation.
Described cylindrical shape containment vessel and described taper containment vessel divide body formed, and by a connecting cylinder butt joint.
Described jointing comprises: tube connector, the number of described tube connector is consistent with the number of the described heart yearn of described multicore cable, and be arranged on the conductor place of the described heart yearn of two described multicore cables, realize the butt joint of described conductor of the described heart yearn of two described multicore cables; The inner shield pipe, described inner shield pipe is arranged on described tube connector inwall; The straight coupling main body, described straight coupling main body comprises tubular shell, and the stress cone that is arranged on place, two ends in the described tubular shell, described straight coupling main body is set on the described tube connector, the described stress cone at two ends is put up respectively on the semi-conductive layer of the described heart yearn of two described butt joint multicore cables, and the sealing of place, described straight coupling main body two ends; Shielding copper mesh cover, described shielding copper mesh is set on the described straight coupling main body, and the two ends of described shielding copper mesh cover are connected with the copper shield of two described multicore cables respectively.
A kind of method that the multicore cable transition joint is installed, comprise the steps: 1) described shell is removed in the butt end of two described multicore cables, after the tip of the described conical head of described balance wedge awl inserted the heart yearn cluster centre of described butt joint multicore cable, promote described balance wedge awl and strut described heart yearn group, the described heart yearn that will separate is simultaneously smoothed out with the fingers in the described passage of balance wedge awl, described heart yearn partly separates along described opening skewed slot, and obtain proofreading and correct by described passage, then the described heart yearn that separates is carried out stripping; 2) insert described jointing in the butt end of two described multicore cables, dock one by one by described jointing each structure sheaf with the corresponding described heart yearn of two described multicore cables; 3) two ends with described housing are connected with the described body seal of two described multicore cables respectively.
In step 1) and step 2) between, also comprise the described heart yearn that the described passage from described balance wedge awl is passed, pass in the described correction hole of described balance fixed block, and come and go mobile described balance fixed block, with the step of described heart yearn correction along described heart yearn.
In step 2) and step 3) between, also comprise around around the core wire segment of described heart yearn crotch between the described jointing, the step to the spacing insulating barrier of described balance fixed block and described balance wedge awl is set.
Technique scheme of the present invention has the following advantages compared to existing technology:
1, in the present invention, the setting of balance wedge awl can guarantee the even bifurcated of heart yearn, has prevented overflexing distortion when the heart yearn bifurcated simultaneously, has realized to a certain extent the heart yearn behind the bifurcated is carried out collimation;
2, in the present invention, the setting of balance fixed block can be bored by the complex equilibrium wedge, the heart yearn collimation that will from balance wedge awl, pass, and maintain the even distribution of each heart yearn and the state that extends in parallel, thereby make each heart yearn all at equilibrium, guaranteed that the spaced apart size between each heart yearn is consistent, the electric field unanimity, the more important thing is, reduced the generation in gap between the caused heart yearn interior layer of distortion of heart yearn largely, and stress cone, inner shield pipe generation gross distortion, and influence the performance of multicore cable transition joint;
3, in the present invention; the setting of containment vessel; make the multicore cable transition joint have good mechanical strength and toughness; simultaneously can also prevent that the water that penetrates armouring belt and waterproof belt from entering transition joint inside; reach further good waterproof effect; and the interference fits of containment vessel and balance fixed block; not only can make the balance fixed block that the two ends of containment vessel are had certain supporting role; thereby strengthen the compressive resistance of containment vessel, but also can guarantee the equiblibrium mass distribution of three cores in containment vessel.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the cutaway view of multicore cable transition joint of the present invention;
Fig. 2 is the partial enlarged drawing at the A place of Fig. 1;
Fig. 3 is the stereogram of balance wedge awl of the present invention;
Fig. 4 is the front view of balance fixed block of the present invention.
Reference numeral is expressed as among the figure: 1-multicore cable, 2-heart yearn, 3-shielding copper mesh cover, 4-shell, 5-balance wedge awl, 6-passage, 7-opening skewed slot part, 8-material-saving hole, 9-balance fixed block, 10-jointing, 11-correction hole, 12-economize hopper, 13-insulating barrier, 14-waterproof belt, 15-armouring belt, 16-cylindrical shape containment vessel, 17-taper containment vessel, 18-connecting cylinder, 19-tube connector, 20-inner shield pipe, 21-straight coupling main body.
Embodiment
Shown in Fig. 1-4, a kind of multicore cable transition joint comprises the jointing 10 of butt joint one by one of each structure sheaf of the corresponding heart yearn 2 that is used to realize two multicore cables 1; Be arranged on the housing of outermost one deck, the two ends of described housing are suitable for respectively being tightly connected with the shell 4 of two described multicore cables 1; Also comprise insulation, be arranged on the heart yearn crotch and the awl of the balance wedge between the described jointing 10 5 of described multicore cable 1, described balance wedge awl 5 comprises conical head and cylindrical correction afterbody, and axially be provided with equably on the side of described balance wedge awl 5 and be fit to that described heart yearn 2 inserts, the passage 6 that number is consistent with described heart yearn 2 numbers to 2 corrective actions of described heart yearn, described passage 6 comprises on the side that extends to described conical head, be fit to described heart yearn 2 smooth out with the fingers into opening skewed slot part 7, the tip of described conical head is fit to insert the heart yearn cluster centre of described multicore cable 1, so that the described heart yearn 2 in the described heart yearn group along described access ramp part evenly separately, and proofread and correct heart yearn 2 separately by described channel part.The setting of described balance wedge awl 5 can guarantee described heart yearn 2 even bifurcateds, has prevented overflexing distortion when heart yearn 2 bifurcateds simultaneously, realizes to a certain extent the heart yearn behind the bifurcated 2 is carried out collimation.In the present embodiment, for the ease of installing, described passage 6 is the opening tank circuit.
As shown in Figure 1 and Figure 4, in addition, also comprise insulation, be arranged between described balance wedge awl 5 and the described jointing 10, the columniform balance fixed block 9 of as far as possible close described jointing 10, form on the described balance fixed block 9 with described passage 6 distribute consistent, the correction hole 11 that the described heart yearn 2 of confession passes.The setting of described balance fixed block 9 can cooperate described balance wedge awl 5, described heart yearn 2 collimations that will from described balance wedge awl 5, pass, and maintain the even distribution of each heart yearn 2 and the state that extends in parallel, thereby make each heart yearn 2 all at equilibrium, guaranteed that the spaced apart size between each heart yearn 2 is consistent, the electric field unanimity, the more important thing is, reduced the generation in gap between caused heart yearn 2 interior layers of distortion of heart yearn 2 largely, and gross distortions take place in stress cone, inner shield pipe 20, and influence the performance of multicore cable transition joint.
Comprise also described balance fixed block 9 and described balance wedge bored 5 spacing insulating barriers 13 that described insulating barrier 13 centers on from described heart yearn crotch to the core wire segment setting between the described jointing 10.
For economical with materials, reduce cost, also form several material-saving holes 8 on the described balance wedge awl 5.Also be provided with province's hopper 12 on the described balance fixed block 9.
As depicted in figs. 1 and 2; described housing is by the containment vessel that is arranged on innermost layer; be arranged on the waterproof belt 14 of the second layer; and be arranged on outermost armouring belt 15 and constitute; wherein said containment vessel is by the cylindrical shape containment vessel 16 in the middle of being arranged on, and taper containment vessel 17 formations that are arranged on described cylindrical shape containment vessel 16 two ends.Described containment vessel is made by high-intensity engineering material; has good mechanical strength and toughness; be not afraid of extruding and collision, can also prevent that the water that penetrates described armouring belt 15 and described waterproof belt from entering transition joint inside, reaches further good waterproof effect simultaneously.Described containment vessel and described balance fixed block 9 interference fits; not only can make the two ends of 9 pairs of described containment vessels of described balance fixed block have certain supporting role; thereby strengthen the compressive resistance of described containment vessel, but also can guarantee the equiblibrium mass distribution of three cores in described containment vessel.In the present embodiment, the described cylindrical shape containment vessel 16 and described balance fixed block 9 interference fits of described containment vessel.
In the present embodiment; described taper containment vessel 17 is by the conical transition part of centre; be arranged on the two ends of described conical transition part; the great circle tubular butt end portion of docking with described cylindrical shape containment vessel 16 respectively, and the roundlet tubular that is connected with the described shell 4 of described multicore cable 1 connects the end formation.Described cylindrical shape containment vessel 16 and described taper containment vessel 17 minutes are body formed, and by 18 butt joints of a connecting cylinder, and joint can bond with fluid sealant.
Described jointing 10 comprises: tube connector 19, the number of described tube connector 19 is consistent with the number of the described heart yearn 2 of described multicore cable 1, and be arranged on the conductor place of the described heart yearn 2 of two described multicore cables 1, realize the butt joint of described conductor of the described heart yearn 2 of two described multicore cables 1; Inner shield pipe 20, described inner shield pipe 20 are arranged on described tube connector 19 inwalls; Straight coupling main body 21, described straight coupling main body 21 comprises tubular shell, and the stress cone that is arranged on place, two ends in the described tubular shell, described straight coupling main body 21 is set on the described tube connector 19, the described stress cone at two ends is put up respectively on the semi-conductive layer of the described heart yearn 2 of two described butt joint multicore cables 1, and the sealing of place, described straight coupling main body 21 two ends; Shielding copper mesh cover 3, described shielding copper mesh cover 3 is arranged on the described straight coupling main body 21, and the two ends of described shielding copper mesh cover 3 are connected with the copper shield of two described multicore cables 1 respectively.
A kind of method that above-mentioned multicore cable transition joint is installed of present embodiment comprises the steps:
1) butt end of two described multicore cables 1 is removed described shell 4, after the tip of the described conical head of described balance wedge awl 5 inserted the heart yearn cluster centre of described butt joint multicore cable 1, promote described balance wedge awl 5 and strut described heart yearn group, the described heart yearn 2 that will separate is simultaneously smoothed out with the fingers in the described passage 6 of balance wedge awl 5, described heart yearn 2 along described opening skewed slot part 7 separately, and obtain proofreading and correct by described passage 6, then the described heart yearn 2 that separates is carried out stripping;
2) the described heart yearn 2 that will pass from the described passage 6 of described balance wedge awl 5 passes in the described correction hole 11 of described balance fixed block 9, and comes and goes mobile described balance fixed block 9 along described heart yearn 2, and described heart yearn 2 is proofreaied and correct;
3) insert described jointing 10 in the butt end of two described multicore cables 1, dock one by one by described jointing 10 each structure sheaf with the corresponding described heart yearn 2 of two described multicore cables 1;
4) center on from described heart yearn crotch around the core wire segment between the described jointing 10, be provided with described balance fixed block 9 and described balance wedge are bored 5 spacing insulating barriers 13;
5) two ends of described housing are tightly connected with the described shell 4 of two described multicore cables 1 respectively.
In the present invention, multicore cable 1 comprises shell 4 and is arranged on the heart yearn group of shell 4 inside that heart yearn group is made of the heart yearn more than two strands 2.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the invention.
Claims (15)
1. a multicore cable transition joint comprises
Jointing (10), described jointing (10) are used to realize the butt joint one by one of each structure sheaf of the corresponding heart yearn (2) of two multicore cables (1);
Housing, described housing is arranged on outermost one deck, and the two ends of described housing are suitable for respectively being tightly connected with the shell (4) of two described multicore cables (1);
It is characterized in that:
Also comprise insulation, be arranged on the heart yearn crotch and the awl of the balance wedge between the described jointing (10) (5) of described multicore cable (1), described balance wedge awl (5) comprises conical head and cylindrical correction afterbody, and axially be provided with equably on the side of described balance wedge awl (5) and be fit to that described heart yearn (2) inserts, the passage (6) that number is consistent with described heart yearn (2) number to described heart yearn (a 2) corrective action, described passage (6) comprises on the side that extends to described conical head, be fit to described heart yearn (2) smooth out with the fingers into opening skewed slot part (7), the tip of described conical head is fit to insert the heart yearn cluster centre of described multicore cable (1), so that the described heart yearn (2) in the described heart yearn group along described access ramp part evenly separately, and proofread and correct heart yearn (2) separately by described channel part.
2. multicore cable transition joint according to claim 1 is characterized in that: described passage (6) is the opening tank circuit.
3. multicore cable transition joint according to claim 1 and 2 is characterized in that: also form several material-saving holes (8) on the described balance wedge awl (5).
4. according to each described multicore cable transition joint among the claim 1-3, it is characterized in that: also comprise insulation, be arranged between described balance wedge awl (5) and the described jointing (10), the columniform balance fixed block (9) of as far as possible close described jointing (10), form on the described balance fixed block (9) with described passage (6) distribute consistent, the correction hole (11) that the described heart yearn of confession (2) passes.
5. multicore cable transition joint according to claim 4 is characterized in that: also be provided with province's hopper (12) on the described balance fixed block (9).
6. according to claim 4 or 5 described multicore cable transition joints, it is characterized in that: comprise that also described insulating barrier (13) centers on from described heart yearn crotch to the core wire segment setting between the described jointing (10) to described balance fixed block (9) and described balance wedge awl (5) spacing insulating barrier (13).
7. according to each described multicore cable transition joint among the claim 1-6; it is characterized in that: described housing is by the containment vessel that is arranged on innermost layer; be arranged on the waterproof belt (14) of the second layer; and be arranged on outermost armouring belt (15) and constitute; wherein said containment vessel is by the cylindrical shape containment vessel (16) in the middle of being arranged on, and taper containment vessel (17) formation that is arranged on described cylindrical shape containment vessel (16) two ends.
8. multicore cable transition joint according to claim 7 is characterized in that: described containment vessel and described balance fixed block (9) interference fits.
9. multicore cable transition joint according to claim 8 is characterized in that: the described cylindrical shape containment vessel (16) of described containment vessel and described balance fixed block (9) interference fits.
10. according to each described multicore cable transition joint among the claim 7-9; it is characterized in that: described taper containment vessel (17) is by the conical transition part of centre; be arranged on the two ends of described conical transition part; the great circle tubular butt end portion of docking with described cylindrical shape containment vessel (16) respectively, and the roundlet tubular that is connected with the described shell (4) of described multicore cable (1) connects the end formation.
11. according to each described multicore cable transition joint among the claim 7-10, it is characterized in that: described cylindrical shape containment vessel (16) is body formed with described taper containment vessel (17) branch, and by a connecting cylinder (18) butt joint.
12. multicore cable transition joint according to claim 11, it is characterized in that: described jointing (10) comprising: tube connector (19), the number of described tube connector (19) is consistent with the number of the described heart yearn (2) of described multicore cable (1), and be arranged on the conductor place of the described heart yearn (2) of two described multicore cables (1), realize the butt joint of described conductor of the described heart yearn (2) of two described multicore cables (1); Inner shield pipe (20), described inner shield pipe (20) are arranged on described tube connector (19) inwall; Straight coupling main body (21), described straight coupling main body (21) comprises tubular shell, and the stress cone that is arranged on place, two ends in the described tubular shell, described straight coupling main body (21) is set on the described tube connector (19), the described stress cone at two ends is put up respectively on the semi-conductive layer of the described heart yearn (2) of two described butt joint multicore cables (1), and the sealing of place, described straight coupling main body (21) two ends; Shielding copper mesh cover (3), described shielding copper mesh cover (3) is arranged on the described straight coupling main body (21), and the two ends of described shielding copper mesh cover (3) are connected with the copper shield of two described multicore cables (1) respectively.
13. the method for installation such as the described multicore cable transition joint of claim 1-12, it is characterized in that: comprise the steps: 1) described shell (4) is removed in the butt end of two described multicore cables (1), after the tip of the described conical head of described balance wedge awl (5) inserted the heart yearn cluster centre of described butt joint multicore cable (1), promote described balance wedge awl (5) and strut described heart yearn group, the described heart yearn (2) that will separate is simultaneously smoothed out with the fingers in the described passage (6) of balance wedge awl (5), described heart yearn (2) along described opening skewed slot part (7) separately, and obtain proofreading and correct by described passage (6), then the described heart yearn (2) that separates is carried out stripping; 2) insert described jointing (10) in the butt end of two described multicore cables (1), dock one by one by described jointing (10) each structure sheaf with the corresponding described heart yearn (2) of two described multicore cables (1); 3) two ends of described housing are tightly connected with the described shell (4) of two described multicore cables (1) respectively.
14. the method for an installation multicore cable according to claim 13 transition joint, it is characterized in that: in step 1) and step 2) between, also comprise the described heart yearn (2) that the described passage (6) from described balance wedge awl (5) is passed, pass in the described correction hole (11) of described balance fixed block (9), and along the round described balance fixed block (9) that moves of described heart yearn (2), with the step of described heart yearn (2) correction.
15. the method for an installation multicore cable according to claim 14 transition joint, it is characterized in that: in step 2) and step 3) between, also comprise around around the core wire segment of described heart yearn crotch between the described jointing (10), the step of described balance fixed block (9) and described balance wedge being bored (5) spacing insulating barrier (13) is set.
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CN104979688A (en) * | 2014-03-11 | 2015-10-14 | 泰科电子Amp有限责任公司 | Electrical connector and method for producing electrical connector |
CN104979688B (en) * | 2014-03-11 | 2019-08-20 | 泰连德国有限公司 | Electric connector and method for manufacturing electric connector |
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CN107230926A (en) * | 2016-06-08 | 2017-10-03 | 国家电网公司 | Cable internal stresses release control method |
CN107230926B (en) * | 2016-06-08 | 2018-11-13 | 国家电网公司 | Cable internal stresses release control method |
CN112103744A (en) * | 2020-09-08 | 2020-12-18 | 湖南新耒传导材料科技有限公司 | A interfacing apparatus for cable manufacture |
CN114203369A (en) * | 2021-11-08 | 2022-03-18 | 江苏方天电力技术有限公司 | Fusion splice device |
CN115555797A (en) * | 2022-11-18 | 2023-01-03 | 中国科学院合肥物质科学研究院 | Insulation repair structure and repair method for high-voltage measuring line fracture |
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CN117038186B (en) * | 2023-07-19 | 2024-03-26 | 安徽天康集团数据线缆有限公司 | Underwater waterproof data cable |
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