CN109768518B - Terminal head of cable cylindrical conductor center stranded optical fiber and installation method thereof - Google Patents
Terminal head of cable cylindrical conductor center stranded optical fiber and installation method thereof Download PDFInfo
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- CN109768518B CN109768518B CN201910145770.8A CN201910145770A CN109768518B CN 109768518 B CN109768518 B CN 109768518B CN 201910145770 A CN201910145770 A CN 201910145770A CN 109768518 B CN109768518 B CN 109768518B
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Abstract
The invention discloses a terminal head of a central stranded optical fiber of a cylindrical conductor of a cable and an installation method thereof, and particularly relates to the field of power equipment. The invention can completely realize the full-line monitoring of a power cable line in the running state through the terminal head of the central stranded optical fiber of the cylindrical conductor of the cable and the installation method thereof, wherein the heating states of the cable under different loads and different environmental temperatures are effectively monitored, and historical technical data are accumulated; and the current-carrying capacity limit analysis can ensure that the transmission capacity of the cable is exerted to the maximum extent and the economic benefit is improved under the condition that the allowable operation temperature of the cable is not exceeded.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a terminal of a central stranded optical fiber of a cylindrical conductor of a cable and an installation method thereof.
Background
With the development and application of distributed optical fiber sensing technology, the electric power department requires automatic monitoring of the following safe operations of the electric power cable line by using temperature measuring optical fibers in order to ensure the safe operations of transmitting strong electric energy in the electric power cable line.
Firstly, the method comprises the following steps: on-line real-time temperature detection to realize to whole cable run, have great realistic meaning: monitoring the running state, namely effectively monitoring the heating states of the cable under different loads and different environmental temperatures and accumulating historical technical data; the current-carrying capacity limit analysis can ensure that the transmission capacity of the cable is exerted to the maximum extent and the economic benefit is improved under the condition that the allowable operation temperature of the cable is not exceeded; the heating states of the cable under different loads and different environmental temperatures are effectively monitored, historical technical data are accumulated, the current-carrying capacity limit is analyzed, the transmission capacity of the cable can be furthest exerted under the condition that the allowable operating temperature of the cable is not exceeded, and the economic benefit is improved.
Secondly, the method comprises the following steps: and (4) aging monitoring, namely discovering local hot spots on the cable, timely taking cooling measures to delay the aging speed of the cable, discovering local hot spots on the cable, and timely taking cooling measures to delay the aging speed of the cable. And monitoring and early warning faults in real time, timely discovering damage and the like caused by external factors in the cable operation process, and discovering damage caused by the external factors in the cable operation process. The invention of distributed optical fiber sensing technology, which is generally long in cable lines (several hundred meters to ten and several kilometers), enables temperature monitoring of the entire cable line.
Thirdly, the method comprises the following steps: the power cable line is formed by connecting a terminal with electrical equipment such as a switch, a transformer and the like.
At present, the plug-in terminal of the crosslinked polyethylene power cable at home and abroad generally comprises a cable semi-conducting layer, cable insulation, a rubber prefabricated pipe, a cable conductor, a connecting terminal and a protective sleeve.
The terminal of the existing power cable circuit can not effectively measure the heating state of the cable under different loads and different environmental temperatures, and the normal installation and operation steps are easy to cause the terminal to be heated and aged, so that the service life is short.
Disclosure of Invention
To overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a terminal for a cable with a cylindrical conductor and a center-twisted optical fiber and a method for installing the same.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a terminal of cable cylindrical conductor center transposition optic fibre, includes the terminal main part, the inside cable insulation pipe that is equipped with of terminal main part, the cable insulation outside of tubes is connected with cable semiconductor layer, terminal main part inner wall has cup jointed the prefabricated pipe of rubber, the cable insulation pipe top evenly is equipped with cable conductor, the cable conductor top is equipped with connecting terminal, cable insulation top and bottom all are connected with draws forth optic fibre, the inside insulating self-adhesive tape that is equipped with of prefabricated pipe of rubber, the outside packing of cable insulation pipe has the protective sheath.
In a preferred embodiment, a cable insulation tube is arranged inside the terminal body, a cable semiconductor layer is connected to the outer side of the cable insulation tube, a rubber prefabricated tube is sleeved on the inner wall of the terminal body, a cable conductor is uniformly arranged on the top of the cable insulation tube, a connecting terminal is arranged on the top of the cable conductor, leading-out optical fibers are connected to the top and the bottom of the cable insulation tube, and a protective sleeve is filled outside the cable insulation tube.
In a preferred embodiment, the present invention provides a method for installing a terminal of a cable cylindrical conductor center stranded optical fiber, comprising the following steps:
the method comprises the following steps: when the terminal head main body is installed, the extra length of 1000mm is reserved on the cable, the plastic sheath is removed according to a normal construction method, the cable insulating tube is cut through the surface of the wire core in the axial direction by an electric saw, the insulating skin is removed, and the cable semiconductor layer is exposed;
step two: twisting the single wires into a round conductor, separating each layer of the round conductor in the opposite twisting direction, exposing a cable conductor with a stainless steel sheath arranged in the center of the conductor, pulling out the cable conductor with the stainless steel sheath from a gap of the single wires, and bending downwards at the root part of the exposed conductor;
step three: restoring the single-wire conductor of the cable to the original shape according to the original stranding pitch, wherein the restored length is the length of an inner hole of the conductor connecting terminal and is the position of the lead-out optical fiber with the length of 20 mm; tightening the conductor which is restored to the original twisted shape by using a copper wire, removing the redundant cable conductor, and well crimping the conductor connecting terminal for the cable conductor according to a normal crimping method;
step four: the inner surface of the cable insulation tube is provided with a rubber prefabricated tube for placing the small optical fiber groove;
step five: longitudinally sticking two insulating self-adhesive tapes on the surface of the rubber prefabricated pipe, and reserving a small groove for placing an optical fiber between the two insulating self-adhesive tapes;
step six: removing the outer sleeve of the stainless steel sheath of the lead-out optical fiber, reserving the stainless steel sheath with the length of 30mm outside the lead-out conductor, removing the rest stainless steel sheaths to expose the bare lead-out optical fiber, downwards pasting the bare lead-out optical fiber into the small groove from the upper end of the cable insulating tube, then fully coating silicon grease in the small groove, and then winding and wrapping a layer of insulating self-adhesive tape to prevent the lead-out optical fiber from being damaged when the terminal rubber prefabricated tube is installed;
step seven: and sleeving a terminal protective sleeve according to a normal installation process, and leading out the extra length from the lower end of the rubber prefabricated pipe to finish the whole installation step.
In a preferred embodiment, the present invention provides a method for installing a terminal of a cable cylindrical conductor center stranded optical fiber, comprising the following steps:
the method comprises the following steps: when the terminal head main body is installed, the extra length of 1000mm is reserved on the cable, the plastic sheath is removed according to a normal construction method, the cable insulating tube is cut through the surface of the wire core in the axial direction by an electric saw, the insulating skin is removed, and the cable semiconductor layer is exposed;
step two: twisting the single wires into a round conductor, separating each layer of the round conductor in the opposite twisting direction, exposing a cable conductor with a stainless steel sheath arranged in the center of the conductor, pulling out the cable conductor with the stainless steel sheath from a gap of the single wires, and bending downwards at the root part of the exposed conductor;
step three: restoring the single-wire conductor of the cable to the original shape according to the original stranding pitch, wherein the restored length is the length of an inner hole of the conductor connecting terminal and is the position of the lead-out optical fiber with the length of 20 mm; tightening the conductor which is restored to the original twisted shape by using a copper wire, removing the redundant cable conductor, and well crimping the conductor connecting terminal for the cable conductor according to a normal crimping method;
step four: the inner surface of the cable insulation tube is provided with a rubber prefabricated tube for placing the small optical fiber groove;
step five: removing the outer sleeve of the stainless steel sheath of the lead-out optical fiber, reserving the stainless steel sheath with the length of 30mm outside the lead-out conductor, removing the rest stainless steel sheaths to expose the bare lead-out optical fiber, downwards pasting the bare lead-out optical fiber into the small groove from the upper end of the cable insulating tube, then fully coating silicone grease in the small groove, and then winding and wrapping a layer of insulating tape to prevent the optical fiber from being damaged when the terminal rubber prefabricated tube is installed;
step six: and sleeving a terminal protective sleeve according to a normal installation process, and leading out the extra length from the lower end of the rubber prefabricated pipe to finish the whole installation step.
The invention has the technical effects and advantages that:
1. the invention can completely realize the full-line monitoring of a power cable line in the running state through the terminal head of the central stranded optical fiber of the cylindrical conductor of the cable and the installation method thereof, wherein the heating states of the cable under different loads and different environmental temperatures are effectively monitored, and historical technical data are accumulated; the current-carrying capacity limit analysis can ensure that the transmission capacity of the cable is exerted to the maximum extent and the economic benefit is improved under the condition that the allowable operation temperature of the cable is not exceeded; aging monitoring, namely finding local hot spots on the cable, and taking cooling measures in time to delay the aging speed of the cable; the system has the advantages of real-time fault monitoring and early warning, timely discovery of damage caused by external factors in the cable running process, and online monitoring of temperature changes of the cable conductor and the inside of the rubber prefabricated member in the terminal.
Drawings
Fig. 1 is a schematic structural diagram of a terminal body according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a terminal body according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a conventional terminal body;
FIG. 4 is a diagram illustrating a step in a first embodiment of the present invention;
FIG. 5 is a diagram of a second step in a first embodiment of the present invention;
FIG. 6 is a diagram of steps three in the first embodiment of the present invention;
FIG. 7 is a diagram of the fourth step in the first embodiment of the present invention;
FIG. 8 is a diagram illustrating a fifth step in a first embodiment of the present invention;
FIG. 9 is a diagram of step six of the first embodiment of the present invention;
FIG. 10 is a diagram illustrating a seventh step in the first embodiment of the present invention;
FIG. 11 is a diagram illustrating a step I in a second embodiment of the present invention;
FIG. 12 is a diagram illustrating a second step in a second embodiment of the present invention;
FIG. 13 is a diagram of the third step in the second embodiment of the present invention;
FIG. 14 is a diagram of the fourth step in the second embodiment of the present invention;
FIG. 15 is a diagram illustrating the fifth step in the second embodiment of the present invention;
FIG. 16 is a diagram of step six of the second embodiment of the present invention;
the reference signs are: the cable comprises a terminal head main body 1, a cable insulating tube 2, a cable semiconductor layer 3, a rubber prefabricated tube 4, a cable conductor 5, a connecting terminal 6, an optical fiber 7 led out, an insulating self-adhesive tape 8 and a protective sleeve 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the invention provides a terminal of a central stranded optical fiber of a cylindrical cable conductor as shown in figure 1, which comprises a terminal main body 1, wherein a cable insulation tube 2 is arranged in the terminal main body 1, a cable semiconductor layer 3 is connected to the outer side of the cable insulation tube 2, a rubber prefabricated tube 4 is sleeved on the inner wall of the terminal main body 1, cable conductors 5 are uniformly arranged at the top of the cable insulation tube 2, a connecting terminal 6 is arranged at the top of each cable conductor 5, leading-out optical fibers 7 are connected to the top and the bottom of the cable insulation tube 2, an insulating self-adhesive tape 8 is arranged in the rubber prefabricated tube 4, and a protective sleeve 9 is filled on the outer side of the cable insulation tube 2.
The invention provides a method for installing a terminal head of a cable cylindrical conductor center stranded optical fiber, which comprises the following specific installation steps:
the method comprises the following steps: when the terminal head main body 1 is installed, the extra length of 1000mm is reserved on the cable, the plastic sheath is removed according to a normal construction method, the cable insulating tube 2 is cut through the insulation of the extra length on the surface of the wire core along the axial direction by an electric saw, the insulating skin is removed, and the cable semiconductor layer 3 is exposed;
step two: twisting the single wires into a round conductor, separating each layer of the round conductor in the opposite twisting direction, exposing a cable conductor 5 with a stainless steel sheath arranged in the center of the conductor, pulling out the cable conductor 5 with the stainless steel sheath from a gap of the single wires, and bending downwards at the root part of the exposed conductor;
step three: restoring the single-wire conductor of the cable to the original shape according to the original stranding pitch, wherein the restored length is the length of an inner hole of the conductor connecting terminal 6 and is the position of the lead-out optical fiber 7 by 20 mm; the conductor which is restored to the original twisted shape is tightened by a copper wire, the redundant cable conductor 5 is removed, and the cable conductor 5 is well pressed by a conductor connecting terminal 6 according to a normal pressing method;
step four: a rubber prefabricated pipe 4 for placing a small optical fiber groove is arranged on the upper surface of the inner sleeve of the cable insulating pipe 2;
step five: two insulating self-adhesive tapes 8 are longitudinally stuck on the surface of the rubber prefabricated pipe 4, and a small groove for placing an optical fiber is reserved between the two insulating self-adhesive tapes 8;
step six: removing the outer sleeve of the stainless steel sheath of the leading-out optical fiber 7, reserving the stainless steel sheath with the length of 30mm outside the leading-out conductor, removing the rest stainless steel sheaths to expose the bare leading-out optical fiber 7, sticking the bare leading-out optical fiber into the small groove downwards from the upper end of the cable insulation tube 2, then coating silicon grease in the small groove, and wrapping a layer of insulating self-adhesive tape 8 to prevent the leading-out optical fiber 7 from being damaged when the terminal rubber prefabricated tube is installed;
step seven: and sleeving a terminal protective sleeve 9 according to a normal installation process, and leading out the extra length from the lower end of the rubber prefabricated pipe 4 to finish the whole installation step.
Example two:
the invention provides a terminal of a central stranded optical fiber of a cylindrical cable conductor as shown in figure 2, which comprises a terminal main body 1, wherein a cable insulation tube 2 is arranged in the terminal main body 1, a cable semiconductor layer 3 is connected to the outer side of the cable insulation tube 2, a rubber prefabricated tube 4 is sleeved on the inner wall of the terminal main body 1, cable conductors 5 are uniformly arranged at the top of the cable insulation tube 2, a connecting terminal 6 is arranged at the top of each cable conductor 5, leading-out optical fibers 7 are connected to the top and the bottom of the cable insulation tube 2, and a protective sleeve 9 is filled on the outer side of the cable insulation tube 2.
The invention provides a method for installing a terminal head of a cable cylindrical conductor center stranded optical fiber, which comprises the following specific installation steps:
the method comprises the following steps: when the terminal head main body 1 is installed, the extra length of 1000mm is reserved on the cable, the plastic sheath is removed according to a normal construction method, the cable insulating tube 2 is cut through the insulation of the extra length on the surface of the wire core along the axial direction by an electric saw, the insulating skin is removed, and the cable semiconductor layer 3 is exposed;
step two: twisting the single wires into a round conductor, separating each layer of the round conductor in the opposite twisting direction, exposing a cable conductor 5 with a stainless steel sheath arranged in the center of the conductor, pulling out the cable conductor 5 with the stainless steel sheath from a gap of the single wires, and bending downwards at the root part of the exposed conductor;
step three: restoring the single-wire conductor of the cable to the original shape according to the original stranding pitch, wherein the restored length is the length of an inner hole of the conductor connecting terminal 6 and is the position of the lead-out optical fiber 7 by 20 mm; the conductor which is restored to the original twisted shape is tightened by a copper wire, the redundant cable conductor 5 is removed, and the cable conductor 5 is well pressed by a conductor connecting terminal 6 according to a normal pressing method;
step four: a rubber prefabricated pipe 4 for placing a small optical fiber groove is arranged on the upper surface of the inner sleeve of the cable insulating pipe 2;
step five: removing the outer sleeve of the stainless steel sheath of the leading-out optical fiber 7, reserving the stainless steel sheath with the length of 30mm outside the leading-out conductor, removing the rest stainless steel sheaths to expose the bare leading-out optical fiber 7, sticking the bare leading-out optical fiber into the small groove downwards from the upper end of the cable insulation tube 2, then coating silicon grease in the small groove, and wrapping a layer of insulation tape to prevent the optical fiber from being damaged when the terminal rubber prefabricated tube is installed;
step six: and sleeving a terminal protective sleeve 9 according to a normal installation process, and leading out the extra length from the lower end of the rubber prefabricated pipe 4 to finish the whole installation step.
Referring to the attached drawings 1-3, the first embodiment and the second embodiment of the specification:
at present, the plug-in terminal of a crosslinked polyethylene power cable at home and abroad generally comprises a cable semi-conducting layer, cable insulation, a rubber prefabricated pipe, a cable conductor, a connecting terminal and a protective sleeve, the heating state of the cable under different loads and different environmental temperatures cannot be effectively measured when the plug-in terminal is used, and the plug-in terminal is easy to be heated and aged due to normal installation and operation steps and has short service life.
The terminal head of the cable cylindrical conductor center stranded optical fiber provided by the first embodiment and the second embodiment of the invention can completely realize the full-line monitoring of the power cable line in the running state, effectively monitor the heating state of the cable under different loads and different environmental temperatures, and accumulate the historical technical data; the current-carrying capacity limit analysis can ensure that the transmission capacity of the cable is exerted to the maximum extent and the economic benefit is improved under the condition that the allowable operation temperature of the cable is not exceeded; aging monitoring, namely finding local hot spots on the cable, and taking cooling measures in time to delay the aging speed of the cable; the system has the advantages of real-time fault monitoring and early warning, timely discovery of damage caused by external factors in the cable running process, and online monitoring of temperature changes of the cable conductor and the inside of the rubber prefabricated member in the terminal.
Meanwhile, when the terminal is installed, the connection of a cable line and other electrical equipment is met, meanwhile, the optical fiber arranged in the circular conductor can be easily led out, the cable and the optical fiber can be connected on a construction site according to a normal installation process, the crosslinked polyethylene power cable terminal with the led-out optical fiber can also play a good protection role on the terminal, and the service life is prolonged.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (2)
1. The utility model provides a terminal of cable cylindrical conductor center transposition optic fibre, includes terminal main part (1), its characterized in that: the terminal comprises a terminal main body (1), wherein a cable insulation pipe (2) is arranged in the terminal main body (1), a cable semiconductor layer (3) is connected to the outer side of the cable insulation pipe (2), a rubber prefabricated pipe (4) is sleeved on the inner wall of the terminal main body (1), cable conductors (5) are uniformly arranged at the top of the cable insulation pipe (2), connecting terminals (6) are arranged at the top of the cable conductors (5), leading-out optical fibers (7) are connected to the top and the bottom of the cable insulation pipe (2), an insulating self-adhesive tape (8) is arranged in the rubber prefabricated pipe (4), and a protective sleeve (9) is filled in the outer side of the cable insulation pipe (;
the specific installation steps of the terminal head are as follows:
the method comprises the following steps: when the terminal head main body (1) is installed, the extra length of 1000mm is reserved on the cable, the plastic sheath is removed according to a normal construction method, the cable insulation tube (2) is cut through the insulation of the extra length on the surface of the wire core along the axial direction by an electric saw, the insulation skin is removed, and the cable semiconductor layer (3) is exposed;
step two: twisting the single wires into a round conductor, separating each layer of the round conductor according to opposite twisting directions, exposing a cable conductor (5) with a stainless steel sheath arranged in the center of the conductor, pulling out the cable conductor (5) with the stainless steel sheath from a gap of the single wires, and bending downwards at the root part of the exposed conductor;
step three: restoring the single-wire conductor of the cable to the original shape according to the original stranding pitch, wherein the restored length is the length of an inner hole of the conductor connecting terminal (6) and is the position of the lead-out optical fiber (7) by 20 mm; tightening the conductor which is restored to the original twisted shape by using a copper wire, removing the redundant cable conductor (5), and well crimping the cable conductor (5) by using a conductor connecting terminal (6) according to a normal crimping method;
step four: a rubber prefabricated pipe (4) for placing a small optical fiber groove is arranged on the upper surface of the inner sleeve of the cable insulating pipe (2);
step five: two insulating self-adhesive tapes (8) are longitudinally stuck on the surface of the rubber prefabricated pipe (4), and a small groove for placing an optical fiber is reserved between the two insulating self-adhesive tapes (8);
step six: removing the outer sleeve of the stainless steel sheath of the leading-out optical fiber (7), reserving the stainless steel sheath with the length of 30mm outside the leading-out conductor, removing the rest stainless steel sheaths to expose the bare leading-out optical fiber (7), sticking the bare leading-out optical fiber into the small groove from the upper end of the cable insulating tube (2), then coating silicone grease in the small groove, and wrapping a layer of insulating self-adhesive tape (8) to prevent the leading-out optical fiber (7) from being damaged when the terminal rubber prefabricated tube is installed;
step seven: and sleeving a terminal protective sleeve (9) according to a normal installation process, and leading out the extra length from the lower end of the rubber prefabricated pipe (4) to finish the whole installation step.
2. The utility model provides a terminal of cable cylindrical conductor center transposition optic fibre, includes terminal main part (1), its characterized in that: the terminal head comprises a terminal head main body (1), wherein a cable insulation pipe (2) is arranged in the terminal head main body (1), a cable semiconductor layer (3) is connected to the outer side of the cable insulation pipe (2), a rubber prefabricated pipe (4) is sleeved on the inner wall of the terminal head main body (1), cable conductors (5) are uniformly arranged on the top of the cable insulation pipe (2), connecting terminals (6) are arranged on the top of the cable conductors (5), leading-out optical fibers (7) are connected to the top and the bottom of the cable insulation pipe (2), and a protective sleeve (9) is filled on the outer side of the cable insulation pipe (;
the specific installation steps of the terminal head are as follows:
the method comprises the following steps: when the terminal head main body (1) is installed, the extra length of 1000mm is reserved on the cable, the plastic sheath is removed according to a normal construction method, the cable insulation tube (2) is cut through the insulation of the extra length on the surface of the wire core along the axial direction by an electric saw, the insulation skin is removed, and the cable semiconductor layer (3) is exposed;
step two: twisting the single wires into a round conductor, separating each layer of the round conductor according to opposite twisting directions, exposing a cable conductor (5) with a stainless steel sheath arranged in the center of the conductor, pulling out the cable conductor (5) with the stainless steel sheath from a gap of the single wires, and bending downwards at the root part of the exposed conductor;
step three: restoring the single-wire conductor of the cable to the original shape according to the original stranding pitch, wherein the restored length is the length of an inner hole of the conductor connecting terminal (6) and is the position of the lead-out optical fiber (7) by 20 mm; tightening the conductor which is restored to the original twisted shape by using a copper wire, removing the redundant cable conductor (5), and well crimping the cable conductor (5) by using a conductor connecting terminal (6) according to a normal crimping method;
step four: a rubber prefabricated pipe (4) for placing a small optical fiber groove is arranged on the upper surface of the inner sleeve of the cable insulating pipe (2);
step five: removing the outer sleeve of the stainless steel sheath of the lead-out optical fiber (7), reserving the stainless steel sheath with the length of 30mm outside the lead-out conductor, removing the rest stainless steel sheaths to expose the bare lead-out optical fiber (7), sticking the bare lead-out optical fiber into the small groove from the upper end of the cable insulating tube (2), then coating silicone grease in the small groove, and wrapping a layer of insulating tape to prevent the optical fiber from being damaged when the terminal rubber prefabricated tube is installed;
step six: and sleeving a terminal protective sleeve (9) according to a normal installation process, and leading out the extra length from the lower end of the rubber prefabricated pipe (4) to finish the whole installation step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910145770.8A CN109768518B (en) | 2019-02-27 | 2019-02-27 | Terminal head of cable cylindrical conductor center stranded optical fiber and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910145770.8A CN109768518B (en) | 2019-02-27 | 2019-02-27 | Terminal head of cable cylindrical conductor center stranded optical fiber and installation method thereof |
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| CN109768518A CN109768518A (en) | 2019-05-17 |
| CN109768518B true CN109768518B (en) | 2020-08-14 |
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2019
- 2019-02-27 CN CN201910145770.8A patent/CN109768518B/en active Active
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| DE3905090A1 (en) * | 1989-02-20 | 1990-08-23 | Felten & Guilleaume Energie | Slip-on fittings for plastic-insulated medium-voltage cables having integrated optical fibres (optical waveguides, light guides) |
| JPH0556544A (en) * | 1991-08-22 | 1993-03-05 | Hitachi Cable Ltd | Termination of optical fiber composite power cable |
| CN101414034A (en) * | 2008-11-13 | 2009-04-22 | 北京兴迪仪器有限责任公司 | Built-in temperature measuring optical cable |
| CN101719652A (en) * | 2009-12-29 | 2010-06-02 | 沈阳古河电缆有限公司 | Application of composite power cable GIS terminal with optical fiber arranged in center of conductor |
| CN103219689A (en) * | 2013-04-23 | 2013-07-24 | 常州市拓源电缆成套有限公司 | Porcelain sleeve type cable terminal |
| CN108365591A (en) * | 2018-04-04 | 2018-08-03 | 深圳市沃尔核材股份有限公司 | The end connection component of built-in fiber cable and connection method |
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| CN109768518A (en) | 2019-05-17 |
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