Aerial termination connection box (EB-a) and power cable termination connection system including same

Abstract

The present invention relates to an aerial termination connection box (EB-A) and a power cable termination connection system including same, which can improve the reliability of a product by preventing, from sagging, a sleeve member constituting the aerial termination connection box (EB-A) which is installed vertically and employs a dry method.

Description

Aerial terminal connector (EB-A) and power cable termination system equipped with the same

[0001] The present invention relates to an aerial termination connector (EB-A) for terminating overhead lines and power cables, and a power cable termination system comprising the same. More specifically, the present invention relates to an aerial termination connector (EB-A) that can prevent the sleeve member constituting the vertically installed dry-type aerial termination connector from flowing down, thereby improving the reliability of the product, and a power cable termination system comprising the same.

[0002] Typically, power cables are constructed to deliver power to a desired location, either underground, above ground, or under the sea, using conductors that supply power. Insulating these conductors is crucial for these cables. To this end, the insulating layer that insulates the conductors is manufactured using materials such as cross-linked polyethylene (XLPE), or is formed by wrapping insulating paper.

[0003] The above power cables are connected to each other by intermediate joint boxes at intervals of hundreds of meters or kilometers, and the ends of the power cables are terminated to overhead lines or circuit breakers by termination connection boxes.

[0004] An aerial terminal connector (EB-A) for connection to an overhead line is provided with a conductor lead-out rod on the upper portion of the aerial terminal connector (EB-A) for connecting the conductor portion of the overhead line and the power cable. Specifically, the conductor portion of the power cable and the lower portion of the conductor lead-out rod are connected inside the upper portion of the terminal connector, and the upper portion of the conductor lead-out rod exposed to the upper outer portion of the terminal connector can be connected to the overhead line.

[0005] The conventional aerial terminal connection box (EB-A) had a complex structure and required many parts, as it used an upper metal fitting filled with insulating fluid, an O-ring structure, a fixing structure for fixing the metal fitting, and a fastening member.

[0006] Recently, dry-type air-end termination boxes (EB-A) have been used. Dry-type air-end termination boxes (EB-A) have the advantage of being simple in structure, as they do not contain any internal insulating fluid.

[0007] In the case of a dry-type aerial termination connector, the structure of installing hardware, etc. on the top of the tube and the hard magnetic material used in the conventional termination connector box is not used, but a sleeve member made of a flexible material such as silicone or rubber is used so that it is in close contact with the cable without any empty space inside, and structures such as hardware on the top are omitted, which has the advantage of simplifying the configuration.

[0008] When applying a sleeve member made of such a flexible material, the sleeve member is supported by the interfacial pressure between the outer surface of the power cable to be terminated and the inner surface of the sleeve member, and the sleeve member and the conductor lead rod or power cable are bonded with an adhesive on the upper portion of the sleeve member to generate a certain degree of adhesive force, thereby preventing downward slipping of the sleeve member.

[0009] However, power systems have a design lifespan of several decades, are installed outdoors, and are subject to repeated contraction and expansion due to seasonal temperature differences or daily temperature differences, and are exposed to vibrations transmitted from the outside. This can cause the interfacial pressure and adhesive strength supporting the flexible sleeve material to deteriorate, resulting in downward slip problems.

[0010] The previously introduced air-end connector (EB-A) does not provide a separate method to prevent such problems, so a structural solution for the air-end connector (EB-A) is needed to solve this problem.

[0011] The present invention aims to provide an aerial termination connector (EB-A) that can prevent the sleeve member constituting the vertically installed dry-type aerial termination connector (EB-A) from flowing down, thereby improving the reliability of the product, and a power cable termination system having the same.

[0012] In order to solve the above problem, the present invention provides an aerial termination connector for terminating a power cable, comprising: a sleeve member made of a flexible material, through which a power cable to be connected is arranged, an internal electrode for alleviating electric field concentration is provided inside, and a conductor lead rod to which a conductor of the end of the power cable is connected and which is exposed to the outside of the upper portion of the sleeve member; and a slip prevention device mounted on the lower portion of the sleeve member to prevent downward slipping of the sleeve member.

[0013] In addition, the above-mentioned anti-slip device may be configured in a pipe shape, the upper part of which supports the lower part of the sleeve member, and the lower part may be provided with an anti-slip member mounted on the outer surface of the power cable.

[0014] In addition, the lower end of the anti-slip member is provided with a flange portion extending inward, and the flange portion can be supported by being caught on a step formed in the cable jacket of the power cable.

[0015] Here, the above-mentioned slip prevention member may be composed of an insulating resin material.

[0016] In this case, the anti-slip device may further include an external finishing heat shrink tape layer that wraps around the outside of the anti-slip member and a sealing portion for sealing the top and bottom of the external finishing heat shrink taping layer in a circumferential direction.

[0017] And, the sealing portion can be formed by winding a sealing tape.

[0018] Additionally, the sleeve member may be provided with a plurality of sheds on its outer surface.

[0019] In addition, in order to solve the above problem, the present invention can provide an aerial termination system for a power cable, including the above-described termination connector; a support insulator arranged parallel to the termination connector and supporting the termination connector; and a connecting member connecting a conductor lead rod of the termination connector and a connecting fitting provided on an upper portion of the support insulator.

[0020] According to the aerial termination connector (EB-A) and the power cable termination system having the same according to the present invention, a dry-type aerial termination connector (EB-A) installed vertically is formed, and the phenomenon of flowing down or slipping of a sleeve member made of a flexible material can be prevented by installing a reliable structure on the termination connector.

[0021] In addition, according to the aerial termination connector (EB-A) and the power cable termination system including the same according to the present invention, the slip phenomenon of the sleeve member constituting the aerial termination connector (EB-A) can be structurally prevented, so that the process of confirming the interfacial pressure between the sleeve member and the power cable or the adhesive strength by the adhesive can be omitted, thereby improving the maintainability and reliability of the power system and reducing the risk of safety accidents.

[0022] Figure 1 illustrates one embodiment of a power cable termination system (1) according to the present invention.

[0023] Figure 2 illustrates an example of a power cable that is terminated through the power cable termination system of the present invention.

[0024] FIG. 3 is a cross-sectional view showing a partially enlarged area of ​​an aerial termination connector (EB-A) constituting a power cable termination system according to the present invention and a support insulator for supporting the aerial termination connector (EB-A).

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosure is thorough and complete, and to sufficiently convey the spirit of the invention to those skilled in the art. Like reference numbers designate like elements throughout the specification.

[0026] Figure 1 illustrates one embodiment of a power cable termination system (1) according to the present invention.

[0027] In order to connect a power cable (800) laid underground, etc. to an overhead line, a power cable termination connection system (1) is required.

[0028] In general, a power cable termination system (1) is installed on a tower (700), and a power cable (800) connected to an overhead line is vertically arranged and connected to a termination connector (100).

[0029] The above terminal connector (100) can be indirectly supported on the tower (700) via a power cable (800). That is, since the power cable (800) is fixed to the tower (700), the terminal connector (100) into which the power cable (800) is introduced and vertically arranged can be indirectly supported on the tower (700).

[0030] The above terminal connector (100) may be a dry-type air terminal connector (100), and the power cable (800) may be introduced into the inside of a sleeve member (110) constituting the terminal connector (100), and a conductor lead (850) may be installed on the upper part of the sleeve member (110).

[0031] The above conductor lead rod (850) can be connected to an overhead line or circuit breaker, etc.

[0032] In the case where the above terminal connector (100) is a dry type, the cable (800) is introduced in a tightly packed state without any empty space inside the sleeve member (110) made of silicone or rubber, so it lacks the supporting force for self-standing, and the power cable (800) introduced into the terminal connector (100) may undergo thermal expansion and contraction, so its position cannot be stably maintained, and therefore a separate supporting structure is required.

[0033] To this end, a dry-type aerial terminal connector (100) is fixed to the tower (700) side, and a magnetic material support insulator (400) that can provide vertical support by embedding FRP, etc. is placed side by side, and the support insulator (400) and the terminal connector (100) are connected so that the terminal connector (100) can be supported vertically by the support insulator (400). The support insulator (400) can be directly fixed to the tower (700) via an installation plate (500) therebelow and an insulating insulator (600) for insulating the installation plate (500).

[0034] In the case where the above-mentioned support insulator (400) is configured to perform the role of a lightning arrester, etc., the terminal connector (100) and the support insulator (400) require electrical connection, and a metal connecting member (300) connecting the support insulator (400) and the terminal connector (100) may be further provided, and the connecting member (300) and the support insulator (400) may be fastened by means of a metal connecting fitting (410) installed therebetween.

[0035] And the sleeve member (110) constituting the terminal connector (100) according to the present invention is supported by interfacial pressure or adhesive force, but the present invention may be provided with a slip prevention device (150) to prevent downward slip of the sleeve member (110) constituting the terminal connector (100) due to long-term use of the system or introduction of external vibration.

[0036] The above-described anti-slip device (150) can be mounted on the lower portion of the sleeve member (110) constituting the terminal connector (100). Before describing the above-described anti-slip device (150), the basic structure of the power cable (800) that is terminated through the power cable termination system (1) will first be reviewed.

[0037] FIG. 2 illustrates an example of a power cable terminated via the power cable termination system of the present invention. Specifically, the power cable (800) illustrated in FIG. 2 is a perspective view of a state in which the end portion is stripped in multiple stages.

[0038] As illustrated in FIG. 2, a power cable (800) includes a conductor (11), an inner semiconducting layer (12), a cable insulation layer (14), and an outer semiconducting layer (16), and has a cable core portion (10) that transmits power only in the cable length direction along the conductor (11) and prevents current from leaking in the cable radius direction.

[0039] The conductor (11) above serves as a passage through which current flows to transmit power, and may be made of a metal material, such as copper or aluminum, that has excellent conductivity and strength and flexibility suitable for cable manufacturing and use to minimize power loss.

[0040] Since the conductor (11) is formed by twisting multiple strands, its surface is not smooth, so the electric field may be uneven and corona discharge may easily occur partially. In addition, if a gap is created between the surface of the conductor (11) and the cable insulation layer (14) described below, the insulation performance may deteriorate.

[0041] In order to solve the above problem, an internal semiconducting layer (12) may be formed on the outside of the conductor (11). The internal semiconducting layer (12) may have semiconductivity by adding conductive particles such as carbon black, carbon nanotubes, carbon nanoplates, and graphite to an insulating material.

[0042] The above inner semiconducting layer (12) functions to stabilize insulation performance by preventing a sudden change in electric field between the conductor (11) and the cable insulation layer (14) described below. In addition, it suppresses uneven charge distribution on the surface of the conductor (11) to make the electric field uniform, and prevents a gap from forming between the conductor (11) and the cable insulation layer (14), thereby suppressing corona discharge, insulation breakdown, etc.

[0043] The above insulating layer (14) is provided on the outside of the inner semiconducting layer (12) and can electrically insulate from the outside so that the current flowing along the conductor (11) does not leak to the outside.

[0044] The above insulating layer (14) is composed of an insulating composition that has a high breakdown voltage, an insulating performance that can be stably maintained for a long period of time, a low dielectric loss, and heat resistance, and the insulating composition may be a polyolefin resin such as polyethylene and polypropylene, preferably a polyethylene resin, and in particular, cross-linked polyethylene (XLPE) may be used as a base resin.

[0045] The above insulating layer (14) can be formed by extruding the above insulating composition, and can prevent the occurrence of a gap or the intrusion of foreign substances at the interface between the inner semiconducting layer (12) and the outer semiconducting layer (16) described later.

[0046] An external semiconducting layer (16) may be provided on the outside of the insulating layer (14). The external semiconducting layer (16) is formed of a material having semiconductivity by adding conductive particles, such as carbon black, carbon nanotubes, graphite, etc., to an insulating material, like the internal semiconducting layer (12), thereby suppressing uneven charge distribution between the insulating layer (14) and the metal sheath (22) described below, thereby stabilizing the insulating performance.

[0047] In addition, the outer semiconducting layer (16) performs the function of preventing corona discharge by smoothing the surface of the insulating layer (14) in the cable and alleviating electric field concentration.

[0048] A cable protection part (20) may be provided on the outside of the cable core part (10), and the cable protection part (20) serves to protect the core part from various environmental factors such as moisture penetration, mechanical trauma, and corrosion that may affect the cable power transmission performance.

[0049] The above cable protection member (20) may be sequentially provided with a moisture absorption layer (21), a metal sheath (22), and a cable jacket (28).

[0050] The above moisture-absorbing layer (21) is configured in the form of a powder, tape, coating layer, or film containing a super absorbent polymer (SAP) that has a high rate of absorption of moisture that has penetrated the cable and an excellent ability to maintain an absorbed state, and can serve to prevent moisture from penetrating in the length direction of the cable. In addition, the moisture-absorbing layer (21) is preferably semi-conductive to prevent rapid changes in the electric field, and may be configured in the form of a copper wire direct tape by including copper wire in the moisture-absorbing layer (21) so that it can perform both current-conducting and moisture-absorbing functions.

[0051] A metal sheath (22) may be provided on the outside of the moisture-absorbing layer (21), and the metal sheath (22) may be formed to surround the cable core portion (10). The metal sheath (22) may be formed to seal the cable core portion (10) in order to prevent foreign substances such as moisture from penetrating the cable core portion (10), and a molten metal may be extruded on the outside of the cable core portion (10) to form a seamless, continuous outer surface, thereby improving water-proofing performance. Lead or aluminum may be used as the metal, and a lead alloy with added metal elements may be used to improve mechanical properties.

[0052] In addition, the metal sheath (22) is grounded through the terminal connection system of the present invention for the power cable, and serves as a path for the fault current to flow in the event of an accident such as a ground fault or short circuit, thereby protecting the cable from external impact and preventing the electric field from being discharged to the outside of the cable. The grounding structure of the metal sheath and the terminal connection system according to the present invention will be described below with reference to FIG. 3.

[0053] In addition, the metal sheath (22) may be coated with a corrosion-preventing compound, such as blown asphalt, on the surface to further improve the corrosion resistance and water resistance of the cable and to improve the adhesion with the polymer sheath layer (24) provided on the outside of the metal sheath (22).

[0054] A cable jacket (28) may be provided on the outside of the metal sheath (22). The cable jacket (28) may improve the corrosion resistance and water resistance of the cable, and may protect the cable from mechanical trauma and other external environmental factors such as heat and ultraviolet rays. The cable jacket (28) may be composed of a resin such as polyvinyl chloride (PVC), polyethylene, or the like.

[0055] The power cable (800) configured in this manner is terminated through a power cable termination connector (100) according to the present invention and a power cable termination system including the same. The power cable termination system will be reviewed with reference to FIG. 3.

[0056] FIG. 3 is a cross-sectional view showing a partially enlarged area of ​​an aerial terminal connector (100) that constitutes a power cable terminal connection system according to the present invention and a support insulator (400) for supporting the aerial terminal connector (100).

[0057] As described above, the power cable termination system (1) according to the present invention may be configured to include an aerial termination connector (100) of the present invention, a connecting member (300) connected to the termination connector (100) at the upper and lower portions of the termination connector (100) to provide vertical support force to the termination connector (100), and a support insulator (400) connected through an installation plate (500).

[0058] And, the aerial terminal connector (100) of the power cable (800) according to the present invention may be configured by including a sleeve member (110) made of a flexible material, through which the power cable (800) to be connected is disposed, and which has an internal electrode (130) for alleviating electric field concentration inside; a conductor drawing rod (850) to which the conductor at the end of the power cable (800) is connected and which is exposed to the upper outer side of the sleeve member (110); and a slip prevention device (150) which is mounted on the lower portion of the sleeve member (110) and prevents downward slipping of the sleeve member (110).

[0059] In the case of a dry-type aerial termination connector (100), it is not a structure in which a conventional hard magnetic material tube and a metal fitting are installed on the upper part of the tube, but a flexible material such as silicone or rubber sleeve member (110) is used to accommodate a power cable (800) without any empty space inside, and the inner surface of the through-hole of the accommodated power cable (800) and the sleeve member (110) are in close contact with each other, and structures such as metal fittings on the upper part can be omitted. The sleeve member (110) can be repeatedly provided with a plurality of caps (111) in the length direction to increase the creepage distance.

[0060] In addition, a separate cap member (140) may be provided on the upper portion of the sleeve member (110). The cap member (140) and the sleeve member (110) may be configured as an integral body, but since the cap member (140) is configured to support the conductor lead-out rod (850) to which the end of the conductor (11) of the power cable (800) is connected, the cap member (140) may be configured with a material that is harder than the flexible sleeve member (110), the lower surface of the cap member (140) may be adhered to the upper surface of the sleeve member (110), the upper inner surface of the cap member (140) may be adhered to the outer surface of the conductor insertion portion of the conductor lead-out rod (850), and the lower inner surface of the cap member (140) may be adhered to the insulating layer (14) of the power cable (800) to prevent slippage between components near the conductor lead-out rod (850) and to stably support the conductor lead-out rod (850).

[0061] The lower region of the sleeve member (110) may be provided with a main insulating portion (112) having an increased diameter and not having a cap on the outer circumference, and an internal electrode (130) may be provided inside the main insulating portion (112). The internal electrode (130) may be electrically connected to the outer semiconducting layer (16) of the power cable (800) introduced into the sleeve member (110) to perform the function of alleviating electric field concentration.

[0062] In addition, the terminal connector (100) according to the present invention may be configured to include a slip prevention device (150) mounted on the lower portion of the sleeve member (110) to prevent downward slipping of the sleeve member (110).

[0063] The above-mentioned anti-slip device (150) is configured in a pipe shape, and the upper part supports the lower part of the sleeve member (110), and the lower part may be provided with an anti-slip member (151) mounted on the outer surface of the power cable (800).

[0064] That is, the upper part of the above-mentioned anti-slip member (151) composed of a pipe structure has a cross-section in a ring shape and can support the lower surface of the lower part (121) of the above-mentioned sleeve member (110) of a shape corresponding to each other.

[0065] The above-mentioned anti-slip device (150) is configured to prevent downward slip when the interface pressure and adhesive force that allow the sleeve member (110) constituting the terminal connector (100) to maintain its original position are weakened or when strong vibrations such as earthquakes are transmitted from the outside.

[0066] The above-mentioned anti-slip device (150) is configured in the shape of a pipe and may be provided with a anti-slip member (151) composed of a resin material capable of ensuring insulation. Specifically, the anti-slip member (151) may be composed of a material such as PVC (polyvinyl chloride).

[0067] PVC is lightweight, inexpensive, flexible, durable, wear-resistant, waterproof, and has good processability. Therefore, when selected as a material for a slip-preventing member (151), it is expected to be able to stably support a sleeve member (110) without being damaged for a long time.

[0068] In the case where the above power cable (800) is an ultra-high voltage power cable of 170 kV, the thickness (t) of the slip prevention member (151) made of PVC material can be about 4 millimeters (mm) to 7 millimeters (mm), and its length (h) can be about 17 centimeters (cm) to 27 centimeters (cm), it was confirmed that the slip prevention member (151) itself does not move and sagging due to slip of the sleeve member (110) which is the support target can be sufficiently prevented.

[0069] Since the above-mentioned anti-slip member (151) is basically configured in a cylindrical shape, it is mounted on the lower part of the sleeve member (110) and must support the lower end of the sleeve member (110) when a slip phenomenon of the sleeve member (110) occurs. Therefore, the anti-slip member (151) must have a structure that resists downward movement.

[0070] The lower end of the above-mentioned anti-slip member (151) is provided with a flange portion (151f) extending inward, and the flange portion (151f) can be configured to be supported by being caught on a step formed in the cable jacket (28) of the power cable (800).

[0071] And the above power cable (800) must be multi-stripped in order to be connected to the terminal connector (100), and the end of the multi-stripped power cable (800) may have a structure in which the exposed internal components are finished by being finished with a stripping end portion (160).

[0072] As illustrated in FIG. 3, the stripping finishing part (160) of the power cable (800) may be configured to include a semiconductive taping layer (161) for field mitigation from the inside of the stripping area, a copper mesh layer (163) for shielding, etc., wrapping the outside of the semiconductive taping layer (161), a resin taping layer (165) for waterproofing and internal component protection formed by horizontally winding a tape made of PVC material, etc., wrapping the copper mesh layer (163), and a heat-shrinkable taping layer (167) for stripping finishing to finish the stripping area.

[0073] In addition, the heat shrink taping layer (167) for the above-mentioned peeling finish is a layer provided for physical finishing, and thus can be provided to cover the entire area from the bottom of the sleeve member (110) to the top of the peeled cable jacket (28).

[0074] Accordingly, the flange (151f) provided at the lower end of the above-mentioned anti-slip member (151) can be supported by being caught on the heat shrinkable taping layer (167) for the stripping finish that wraps around the upper end of the cable jacket (28) that is stripped to form a step.

[0075] In addition, the metal sheath (22) of the power cable (800) can be connected to a ground cable (gc) with a plurality of ground conductors (22c) on the outer surface for grounding.

[0076] The above metal sheath (22) and the above grounding conductor (22c) can be bound with a linkage wire (22w) to finish and fix the end of the stripping finish and position within the stripping finish heat shrink taping layer (167) constituting the stripping finish portion (160), thereby providing stable grounding performance and position fixing function.

[0077] In addition, the above-described slip prevention device (150) may further include an external finishing heat shrinkable taping layer (153) that wraps around the outside of the slip prevention member (151) mounted on the outside of the aforementioned peeling finishing member (160) and a sealing portion (155) for finishing the top and bottom of the external finishing heat shrinkable taping layer (153). The external finishing heat shrinkable taping layer (153) added to the outside of the slip prevention member (151) itself can bring the slip prevention member (151) into close contact with the inner peripheral surface of the power cable (800), and can further improve the watertight performance by reinforcing the sealing through the sealing portion (155).

[0078] Among the sealing portions (155), the sealing portion that seals the upper portion of the heat shrinkable taping layer (153) for external finishing is constructed to wrap the lower portion (121) of the sleeve member (110) or the outer circumferential surface of the lower portion (121) in the circumferential direction, and among the sealing portions (155), the sealing portion that seals the lower portion of the heat shrinkable taping layer (153) for external finishing completely covers the slip prevention member (151) and can be constructed in the circumferential direction at a position near the upper portion of the cable jacket (28).

[0079] When the length (h) of the above-mentioned anti-slip member (151) is about 17 centimeters (cm) to 27 centimeters (cm), the total length (H) of the heat-shrinkable taping layer (153) for external finishing may be configured to be about 20 centimeters (cm) to 40 centimeters (cm), so that it can be configured to have a size sufficient to finish the entire anti-slip member (151).

[0080] Accordingly, the heat shrinkable taping layer (167) for peeling finishing that constitutes the peeling finishing part (160) and the heat shrinkable taping layer (153) for external finishing that constitutes the slip prevention device (150) overlap each other to overlap and finish the peeling area and the terminal connection area of ​​the power cable, thereby sufficiently reinforcing the waterproofing and protection functions.

[0081] In this way, the present invention can prevent the sleeve member made of a flexible material from flowing down or slipping by configuring a dry-type aerial termination connector (EB-A) installed vertically, and by adding a reliable slip prevention device (150), it can omit the repetitive inspection work for the interfacial pressure between the sleeve member and the power cable or the adhesive strength by the adhesive, thereby improving the maintainability and reliability of the power system and reducing the risk of safety accidents.

[0082] While this specification has described preferred embodiments of the present invention, those skilled in the art will appreciate that various modifications and variations can be made to the present invention without departing from the spirit and scope of the invention as defined in the claims below. Therefore, any modified implementation that fundamentally includes the elements of the claims should be considered within the technical scope of the present invention.

Claims

1. In the aerial termination connector that terminates the power cable, A sleeve member made of a flexible material, through which a power cable to be connected is placed, and which has an internal electrode for alleviating electric field concentration inside; A conductor lead rod to which the conductor of the above power cable end is connected and which is exposed to the upper outer side of the sleeve member; and An aerial terminal connector having a slip prevention device mounted on the lower portion of the sleeve member to prevent downward slipping of the sleeve member.

2. In paragraph 1, An aerial terminal connector characterized in that the above-mentioned anti-slip device is configured in a pipe shape, the upper part supports the lower part of the sleeve member, and the lower part has a anti-slip member mounted on the outer surface of the power cable.

3. In paragraph 2, An aerial terminal connector characterized in that the lower end of the above-mentioned slip prevention member is provided with a flange portion extending inward, and the flange portion is supported by being caught on a step formed in the cable jacket of the power cable.

4. In paragraph 2, The above-mentioned anti-slip member is characterized in that it is composed of an insulating resin material.

5. In paragraph 2, An air terminal connector characterized in that the above-mentioned slip prevention device further comprises an external finishing heat shrink tape layer that wraps the outside of the slip prevention member and a sealing portion for sealing the upper and lower sides of the external finishing heat shrink taping layer in a circumferential direction.

6. In paragraph 5, An aerial terminal connector characterized in that the above sealing portion is formed by winding a sealing tape.

7. In paragraph 1, An aerial terminal connector characterized in that the sleeve member has a plurality of sheds provided on the outer surface.

8. A terminal connector according to any one of paragraphs 1 to 7; A support member arranged parallel to the terminal connector and supporting the terminal connector; and An aerial termination connection system for a power cable, including a connecting member that connects the conductor lead rod of the above-mentioned termination body and the connecting member provided on the upper part of the above-mentioned support insulator.

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