METHOD FOR PERFORMING UNINTERRUPTIBLE POWER DISTRIBUTION WORK WITHIN SECTION IN DE-ENERGIZED LINE STATE BY SEPARATING WIRES WITHIN POLE-TO-POLE SPAN BY MEANS OF INSULATED LIVE WIRE GRIP AND BYPASS JUMPER CABLE

Abstract

Provided is a method for performing uninterruptible power distribution work within a working section in a de-energized line state by separating wires within a pole-to-pole span by means of an insulated live wire grip and a bypass jumper cable, wherein: uninterruptible power distribution work can be forcibly performed directly on a live wire between poles located at the beginning and end of a working section without installing a bypass cable at the work site, and the work process employs a direct power transmission method in which power distribution work is performed by bypassing new and old wires, whereby, even when transformers are located at several points within a working section, uninterruptible power distribution work can be performed via one uninterruptible transformer apparatus by using, as the interruptible power distribution method.

Claims

1. An uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire, the uninterruptible power distribution method being performed for electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state, wherein the uninterruptible power distribution method comprises: a process of performing electric-pole establishment work, electric-pole assembly work, and electric wiring work within a work section in the dead-line state in order to perform uninterruptible preparation work; a process of installing electric wire clips of insulated live-line wire grips (20) for holding tension of electric wires inside a work section defined by a work-section start electric pole (10) and a work-section end electric pole (10) at points at which a safe dead-line work section of electric wires (1) to be removed is secured; a process of connecting one end of a bypass jumper means 30 to an electric wire (1) to be removed outside each of the electric wire clips of the insulated live-line wire grips (20), installed within the work section defined by the work-section start electric pole (10) and the work-section end electric pole (10), and connecting the other end of the bypass jumper means (30) to an old electric wire (2) located outside each of the work-section start electric pole (10) and the work-section end electric pole (10) deviating from the work section, thereby completing bypass connection; a process of sequentially separating jumper wires (3) of the work-section start electric pole (10) and the work-section end electric pole (10) and separating an electric wire (1) to be removed within a span of the electric poles (10) from a point at which each of the electric wire clips of the insulated live-line wire grips (20) is held; a process of removing an electric wire (1) to be removed extending from a point of separation within a span of the work-section start electric pole (10) and the work-section end electric pole (10) to a suspension insulator of each electric pole (10) in order to secure a safe dead-line work space, and stretching, tensioning, and fixing newly established electric wires (110); a process of sequentially connecting jumper wires (130) of the newly established electric wires (110), wired to the work-section start electric pole (10) and the work-section end electric pole (10), to the old electric wires (2) and separating the installed bypass jumper means (30); and a process of removing the electric wires (1) to be removed, tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips (20), and an electric pole corresponding thereto.

2. An uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire, the uninterruptible power distribution method being performed for electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state, wherein in a case in which a branch-line electric pole (100a) is present within a work section, the uninterruptible power distribution method comprises: a process of performing electric-pole establishment work, electric-pole assembly work, and electric wiring work within the work section in the dead-line state in order to perform uninterruptible preparation work; a process of installing electric wire clips of insulated live-line wire grips (20) for holding tension of electric wires inside a work section defined by a work-section start electric pole (10) and a work-section end electric pole (10), within which the branch-line electric pole (100a) is present, at points at which a safe dead-line work section of electric wires (1) to be removed is secured; a process of connecting one end of a bypass jumper means (30) to an electric wire (1) to be removed outside each of the electric wire clips of the insulated live-line wire grips (20), installed at the work-section start electric pole (10) and the work-section end electric pole (10), and connecting the other end of the bypass jumper means (30) to an old electric wire (2) located outside each of the work-section start electric pole (10) and the work-section end electric pole (10) deviating from the work section, thereby completing bypass connection; a process of sequentially separating jumper wires (3) of the work-section start electric pole (10) and the work-section end electric pole (10) and separating an electric wire (1) to be removed within a span of the electric poles (10) from a point at which each of the electric wire clips of the insulated live-line wire grips (20) is held; a process of removing an electric wire (1) to be removed extending from a point of separation within a span of the work-section start electric pole (10) and the work-section end electric pole (10) to a suspension insulator of each electric pole (10) in order to secure a safe dead-line work space, and stretching, tensioning, and fixing newly established electric wires (110); a process of installing electric wire clips of insulated live-line wire grips (20) for holding tension of electric wires inside a work section defined by the branch-line electric pole (100a) at points at which a safe dead-line work section of electric wires (1a) to be removed is secured; a process of connecting one end of a bypass jumper means (30) to an electric wire (1a) to be removed outside each of the electric wire clips of the insulated live-line wire grips (20), installed at the branch-line electric pole (100a), and connecting the other end of the bypass jumper means (30) to an old electric wire (2) located outside the branch-line electric pole (100a) deviating from the work section, thereby completing bypass connection; a process of sequentially separating jumper wires (3a) of the branch-line electric pole (100a) and separating an electric wire (1a) to be removed within a span of the branch-line electric pole (100a) from a point at which each of the electric wire clips of the insulated live-line wire grips (20) is held; a process of removing an electric wire (1a) to be removed extending from a point of separation within the span of the branch-line electric pole (100a) to a suspension insulator of the branch-line electric pole (100a) in order to secure a safe dead-line work space, and stretching, tensioning, and fixing newly established electric wires (110a); a process of sequentially connecting jumper wires (130) (130a) of the newly established electric wires (110) (110a), wired to the work-section start electric pole (10), the work-section end electric pole (10), and the branch-line electric pole (100a), to the old electric wires (2) (2a) and separating the installed bypass jumper means (30); and a process of removing the electric wires (1) (1a) to be removed, tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips (20), and an electric pole corresponding thereto.

3. The uninterruptible power distribution method according to claim 2, wherein in a case in which a plurality of branch lines is present within the work section, in the process of installing the insulated live-line wire grips (20) at the branch-line electric pole (100a), the process of stretching, tensioning, and fixing newly established electric wires (110a) of the branch lines is repeatedly performed a number of times equal to a number of the branch lines.

4. An uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire, the uninterruptible power distribution method being performed for electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state, wherein in a case in which an electric pole (10b) having a pole-mounted transformer is present within a work section, the uninterruptible power distribution method comprises: a process of performing electric-pole establishment work, electric-pole assembly work, and electric wiring work within the work section in the dead-line state in order to perform uninterruptible preparation work; a process of installing electric wire clips of insulated live-line wire grips (20) for holding tension of electric wires inside a work section defined by a work-section start electric pole (10) and a work-section end electric pole (10), within which the branch-line electric pole (100a) is present, at points at which a safe dead-line work section of electric wires (1) to be removed is secured; a process of connecting one end of a bypass jumper means (30) to an electric wire (1) to be removed outside each of the electric wire clips of the insulated live-line wire grips (20), installed within the work section defined by the work-section start electric pole (10) and the work-section end electric pole (10), and connecting the other end of the bypass jumper means (30) to an old electric wire (2) located outside each of the work-section start electric pole (10) and the work-section end electric pole (10) deviating from the work section, thereby completing bypass connection; a process of sequentially separating jumper wires (3) of the work-section start electric pole (10) and the work-section end electric pole (10) and separating an electric wire (1) to be removed within a span of the electric poles (10) from a point at which each of the electric wire clips of the insulated live-line wire grips (20) is held; a process of removing an electric wire (1) to be removed extending from a point of separation within a span of the work-section start electric pole (10) and the work-section end electric pole (10) to a suspension insulator of each electric pole (10) in order to secure a safe dead-line work space, and stretching, tensioning, and fixing newly established electric wires (110); a process of sequentially connecting jumper wires (130) of the newly established electric wires (110), wired to the work-section start electric pole (10) and the work-section end electric pole (10), to the old electric wires (2); a process of installing an uninterruptible transformer apparatus (60) at the electric pole (10b) having the pole-mounted transformer within the work section, connecting a secondary low-voltage cable (70a) of the uninterruptible transformer apparatus (60) to a secondary low-voltage wire (80) of an installed pole-mounted transformer (50), thereby completing bypass connection, separating a secondary drop wire (52) of the pole-mounted transformer (50), opening a COS (51) of the pole-mounted transformer, and removing the pole-mounted transformer (50); a process of installing the removed pole-mounted transformer at a newly established electric pole (100b) or installing a new pole-mounted transformer at the newly established electric pole (100b), closing a COS (51a) of a newly established pole-mounted transformer (50a), connecting a secondary drop wire (52a) of the pole-mounted transformer (50a), powering off the uninterruptible transformer apparatus (60), and separating a low-voltage cable (70a) of the uninterruptible transformer apparatus (60), thereby completing the replacement, establishment, and relocation of the pole-mounted transformer within the work section; and a process of separating the bypass jumper means (30), installed at the work-section start electric pole (10) and the work-section end electric pole (10), and removing the electric wires (1) to be removed, the tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips within the section between the work-section start electric pole (10) and the work-section end electric pole (10), an electric pole corresponding thereto, and the uninterruptible transformer apparatus (60).

5. The uninterruptible power distribution method according to claim 4, wherein in a case in which a plurality of electric poles (10b) each having a pole-mounted transformer is present within the work section, in the process of installing the uninterruptible transformer apparatus (60) at the electric pole (10b) having the pole-mounted transformer, the process of installing the removed pole-mounted transformer at the newly established electric pole (100b) or installing the new pole-mounted transformer at the newly established electric pole (100b) is repeatedly performed a number of times equal to a number of the electric poles (10b) each having the pole-mounted transformer.

6. An uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire, the uninterruptible power distribution method being performed for electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state, wherein in a case in which a branch-line electric pole (100a) and an electric pole (10b) having a pole-mounted transformer are present within a work section, the uninterruptible power distribution method comprises: a process of performing electric-pole establishment work, electric-pole assembly work, and electric wiring work within the work section in the dead-line state in order to perform uninterruptible preparation work; a process of installing electric wire clips of insulated live-line wire grips (20) for holding tension of electric wires inside a work section defined by a work-section start electric pole (10) and a work-section end electric pole (10), within which the branch-line electric pole (100a) is present, at points at which a safe dead-line work section of electric wires (1) to be removed is secured; a process of connecting one end of a bypass jumper means (30) to an electric wire (1) to be removed outside each of the electric wire clips of the insulated live-line wire grips (20), installed at the work-section start electric pole (10) and the work-section end electric pole (10), and connecting the other end of the bypass jumper means (30) to an old electric wire (2) located outside each of the work-section start electric pole (10) and the work-section end electric pole (10) deviating from the work section, thereby completing bypass connection; a process of sequentially separating jumper wires (3) of the work-section start electric pole (10) and the work-section end electric pole (10) and separating an electric wire (1) to be removed within a span of the electric poles (10) from a point at which each of the electric wire clips of the insulated live-line wire grips (20) is held; a process of removing an electric wire (1) to be removed extending from a point of separation within a span of the work-section start electric pole (10) and the work-section end electric pole (10) to a suspension insulator of each electric pole (10) in order to secure a safe dead-line work space, and stretching, tensioning, and fixing newly established electric wires (110); a process of installing electric wire clips of insulated live-line wire grips (20) for holding tension of electric wires inside a work section defined by the branch-line electric pole (100a) at points at which a safe dead-line work section of electric wires (1a) to be removed is secured; a process of connecting one end of a bypass jumper means (30) to an electric wire (1a) to be removed outside each of the electric wire clips of the insulated live-line wire grips (20), installed at the branch-line electric pole (100a), and connecting the other end of the bypass jumper means (30) to an old electric wire (2) located outside the branch-line electric pole (100a) deviating from the work section, thereby completing bypass connection; a process of sequentially separating jumper wires (3a) of the branch-line electric pole (100a) and separating an electric wire (1a) to be removed within a span of the branch-line electric pole (100a) from a point at which each of the electric wire clips of the insulated live-line wire grips (20) is held; a process of removing an electric wire (1a) to be removed extending from a point of separation within the span of the branch-line electric pole (100a) to a suspension insulator of the branch-line electric pole (100a) in order to secure a safe dead-line work space, and stretching, tensioning, and fixing newly established electric wires (110a); a process of sequentially connecting jumper wires (130) (130a) of the newly established electric wires (110) (110a), wired to the work-section start electric pole (10), the work-section end electric pole (10), and the branch-line electric pole (100a), to the old electric wires (2) (2a); a process of installing an uninterruptible transformer apparatus (60) at the electric pole (10b) having the pole-mounted transformer within the work section, connecting a secondary low-voltage cable (70a) of the uninterruptible transformer apparatus (60) to a secondary low-voltage wire (80) of an installed pole-mounted transformer (50), thereby completing bypass connection, separating a secondary drop wire (52) of the pole-mounted transformer (50), opening a COS (51) of the pole-mounted transformer, and removing the pole-mounted transformer (50); a process of installing the removed pole-mounted transformer at a newly established electric pole (100b) or installing a new pole-mounted transformer at the newly established electric pole (100b), closing a COS (51a) of a newly established pole-mounted transformer (50a), connecting a secondary drop wire (52a) of the pole-mounted transformer (50a), powering off the uninterruptible transformer apparatus (60), and separating a low-voltage cable (70a) of the uninterruptible transformer apparatus (60), thereby completing the replacement and relocation of the pole-mounted transformer within the work section; and a process of separating the bypass jumper means (30), installed at the work-section start electric pole (10), the work-section end electric pole (10), and the branch-line electric pole (100a), and removing the electric wires (1) (1a) to be removed, the tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips within the section between the work-section start electric pole (10), the work-section end electric pole (10) and the branch-line electric pole (100a), an electric pole corresponding thereto, and the uninterruptible transformer apparatus (60).

7. The uninterruptible power distribution method according to claim 1, wherein a bypass jumper cable (30a) made of a single wire is applied as the bypass jumper means (30), in which case the bypass jumper cable (30a) connects the electric wire (1) to be removed and the old electric wire (2), each having three phases, to each other, whereby an electric wire to be removed and an old electric wire having one of the three phases are individually connected to each other, or electric wires to be removed and old electric wires having the three phases are simultaneously connected to each other, or wherein a work switch (30b) capable of simultaneously performing three-phase opening and closing is applied as the bypass jumper means (30), in which case the electric wire (1) to be removed and the old electric wire (2) having each of the three phases are connected to each other via a terminal cable (30c) for the switch, which is connected to the work switch (30b), whereby the work switch (30b) is individually opened and closed for each of the three phases or is simultaneously opened and closed for three phases.

8. The uninterruptible power distribution method according to claim 2, wherein a bypass jumper cable (30a) made of a single wire is applied as the bypass jumper means (30), in which case the bypass jumper cable (30a) connects the electric wire (1) to be removed and the old electric wire (2), each having three phases, to each other, whereby an electric wire to be removed and an old electric wire having one of the three phases are individually connected to each other, or electric wires to be removed and old electric wires having the three phases are simultaneously connected to each other, or wherein a work switch (30b) capable of simultaneously performing three-phase opening and closing is applied as the bypass jumper means (30), in which case the electric wire (1) to be removed and the old electric wire (2) having each of the three phases are connected to each other via a terminal cable (30c) for the switch, which is connected to the work switch (30b), whereby the work switch (30b) is individually opened and closed for each of the three phases or is simultaneously opened and closed for three phases.

9. The uninterruptible power distribution method according to claim 4, wherein a bypass jumper cable (30a) made of a single wire is applied as the bypass jumper means (30), in which case the bypass jumper cable (30a) connects the electric wire (1) to be removed and the old electric wire (2), each having three phases, to each other, whereby an electric wire to be removed and an old electric wire having one of the three phases are individually connected to each other, or electric wires to be removed and old electric wires having the three phases are simultaneously connected to each other, or wherein a work switch (30b) capable of simultaneously performing three-phase opening and closing is applied as the bypass jumper means (30), in which case the electric wire (1) to be removed and the old electric wire (2) having each of the three phases are connected to each other via a terminal cable (30c) for the switch, which is connected to the work switch (30b), whereby the work switch (30b) is individually opened and closed for each of the three phases or is simultaneously opened and closed for three phases.

10. The uninterruptible power distribution method according to claim 6, wherein a bypass jumper cable (30a) made of a single wire is applied as the bypass jumper means (30), in which case the bypass jumper cable (30a) connects the electric wire (1) to be removed and the old electric wire (2), each having three phases, to each other, whereby an electric wire to be removed and an old electric wire having one of the three phases are individually connected to each other, or electric wires to be removed and old electric wires having the three phases are simultaneously connected to each other, or wherein a work switch (30b) capable of simultaneously performing three-phase opening and closing is applied as the bypass jumper means (30), in which case the electric wire (1) to be removed and the old electric wire (2) having each of the three phases are connected to each other via a terminal cable (30c) for the switch, which is connected to the work switch (30b), whereby the work switch (30b) is individually opened and closed for each of the three phases or is simultaneously opened and closed for three phases.

Description

DESCRIPTION OF DRAWINGS

[0040] FIG. 1 is a schematic view showing a first embodiment of an uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire according to the present invention;

[0041] FIG. 2 is a schematic view showing the first embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0042] FIG. 3 is a schematic view showing the first embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0043] FIG. 4 is a schematic view showing the first embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0044] FIG. 5 is a schematic view showing the first embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0045] FIG. 6 is a schematic view showing the first embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0046] FIG. 7 is a schematic view showing a second embodiment of an uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire according to the present invention;

[0047] FIG. 8 is a schematic view showing the second embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0048] FIG. 9 is a schematic view showing the second embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0049] FIG. 10 is a schematic view showing the second embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0050] FIG. 11 is a schematic view showing the second embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0051] FIG. 12 is a schematic view showing the second embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0052] FIG. 13 is a schematic view showing a third embodiment of an uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire according to the present invention;

[0053] FIG. 14 is a schematic view showing the third embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0054] FIG. 15 is a schematic view showing the third embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0055] FIG. 16 is a schematic view showing the third embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0056] FIG. 17 is a schematic view showing the third embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0057] FIG. 18 is a schematic view showing the third embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0058] FIG. 19 is a schematic view showing the third embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0059] FIG. 20 is a schematic view showing the third embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0060] FIG. 21 is a schematic view showing a fourth embodiment of an uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire according to the present invention;

[0061] FIG. 22 is a schematic view showing the fourth embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0062] FIG. 23 is a schematic view showing the fourth embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0063] FIG. 24 is a schematic view showing the fourth embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0064] FIG. 25 is a schematic view showing the fourth embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0065] FIG. 26 is a schematic view showing the fourth embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0066] FIG. 27 is a schematic view showing the fourth embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention;

[0067] FIG. 28 is a schematic view showing the fourth embodiment of the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention; and

[0068] FIG. 29 is a schematic view showing another embodiment of an uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire according to the present invention.

DESCRIPTION OF REFERENCE SYMBOLS

[0069] 1: Electric wires to be removed 1a: Electric wires to be removed of branch line [0070] 2: Old electric wires 2a: Old electric wires of branch line [0071] 3: Jumper wires 3a: Jumper wires of branch line [0072] 10: Start and end electric poles 10b: Electric pole having pole-mounted transformer [0073] 20: Insulated live-line wire grips 30 (30a): Bypass jumper cables [0074] 30b: Work switch 30c: Terminal cable for switch [0075] 50: Pole-mounted transformer 50a: Pole-mounted transformer of newly established electric pole [0076] 51: COS 51a: COS of newly established electric pole [0077] 52: Secondary drop wire of transformer 52a: Secondary drop wire of newly established transformer [0078] 60: Uninterruptible transformer apparatus [0079] 70: Extra-high-voltage cable 70a: Low-voltage cable [0080] 80: Secondary low-voltage wire 80a: Secondary low-voltage wire of newly established electric pole [0081] 100: Newly established electric pole 100a: Branch-line electric pole [0082] 100b: Newly established electric pole having pole-mounted transformer [0083] 110: Newly established electric wires 110a: Newly established electric wires of branch line [0084] 130: Jumper wires of newly established electric wires 130a: Jumper wires of newly established electric wires of branch line

BEST MODE

[0085] It should be noted that terms or words used in this specification and the claims are not to be interpreted as having ordinary and dictionary-based meanings but as having meanings and concepts coinciding with the technical idea of the present invention based on the principle that the inventors may appropriately define the concepts of the terms in order to explain the invention in the best method.

[0086] Consequently, the embodiments described in this specification with reference to the accompanying drawings are merely the most preferred embodiments, and do not cover all technical ideas of the present invention, and therefore it should be understood that there may be various equivalents and modifications capable of substituting for the embodiments at the time of filing of the present application.

[0087] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0088] An uninterruptible power distribution method for performing in-section work in a dead-line state by separating an electric wire within a pole-to-pole span using an insulated live-line wire grip and a bypass jumper wire according to the present invention is capable of being performed in an uninterruptible state according to various embodiments in the case in which electric pole relocation work, electric pole replacement work, and electric pole route change work are performed in an uninterruptible state, wherein the uninterruptible power distribution method is capable of being performed according to various embodiments described hereinafter.

Embodiment 1

[0089] The case in which electric pole relocation work, electric pole replacement work, and electric pole route change work are performed, as shown in FIG. 1

[0090] When electric pole relocation work, electric pole replacement work, and electric pole route change work are performed in an uninterruptible state, electric-pole establishment work, electric-pole assembly work, and electric wiring work are performed within a work section in a dead-line state, except for uninterruptible work at a work-section start electric pole and a work-section end electric pole, in order to perform uninterruptible preparation work, whereby preparation to perform uninterruptible work is achieved.

[0091] At this time, when the uninterruptible work is performed, as shown in FIG. 2, electric wire clips of insulated live-line wire grips 20 for holding the tension of electric wires are installed inside a work section defined by a work-section start electric pole 10 and a work-section end electric pole 10 at points at which a safe dead-line work section of electric wires to be removed is secured. After the installation is completed, one end of a bypass jumper means 30 is connected to an electric wire outside each of the electric wire clips of the insulated live-line wire grips 20, and the other end of the bypass jumper means 30 is connected to an electric wire located outside each of the work-section start electric pole 10 and the work-section end electric pole 10 deviating from the work section, whereby bypass connection is completed. As shown in FIG. 3, jumper wires 3 of the work-section start electric pole 10 and the work-section end electric pole 10 are sequentially separated, and then, as shown in FIG. 4, an electric wire within the pole-to-pole span is separated from the point at which each of the electric wire clips of the insulated live-line wire grips 20 is held, whereby a safe dead-line work section is formed. Subsequently, the electric wire extending from the point of separation to a suspension insulator of each electric pole is removed in a dead-line state in order to secure a safe dead-line work section in which newly established electric wires 110 are stretched and tensioned.

[0092] As shown in FIG. 5, electric pole establishment is completed at each of the work-section start electric pole 10 and the work-section end electric pole 10 in a dead-line state, the newly established electric wires 110 are stretched, tensioned, and fixed, and jumper wires 130 of the newly established electric wires 110, which have been stretched and tensioned at each of the work-section start electric pole 10 and the work-section end electric pole 10, are sequentially connected to old electric wires 2 in a bypass fashion. Subsequently, as shown in FIG. 6, bypass jumper means 30 installed at an electric pole between the work-section start electric pole 10 and the work-section end electric pole 10 are separated, and electric wires 1 to be removed, the tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips, and an electric pole corresponding thereto are removed in a dead-line state, whereby it is possible to perform electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state.

Embodiment 2

[0093] The case in which a branch-line electric pole 100a is present within a work section, as shown in FIG. 7

[0094] Electric-pole establishment work, electric-pole assembly work, and electric wiring work are performed within a work section in a dead-line state in order to perform uninterruptible preparation work, and, as shown in FIG. 7, electric wire clips of insulated live-line wire grips 20 for holding the tension of electric wires are installed inside a work section defined by a work-section start electric pole 10 and a work-section end electric pole 10 at points at which a safe dead-line work section of electric wires to be removed is secured. After the installation is completed, as shown in FIG. 8, one end of a bypass jumper means 30 is connected to an electric wire outside each of the electric wire clips of the insulated live-line wire grips 20 within the work section span, and the other end of the bypass jumper means 30 is connected to an electric wire located outside each of the work-section start electric pole 10 and the work-section end electric pole 10 deviating from the work section, whereby bypass connection is completed. As shown in FIG. 9, jumper wires 3 of the work-section start electric pole 10 and the work-section end electric pole 10 are separated, and then, as shown in FIG. 10, an electric wire within the pole-to-pole span is separated from the point at which each of the electric wire clips of the insulated live-line wire grips 20 is held, whereby a safe dead-line work section is formed. Subsequently, the electric wire extending from the point of separation to a suspension insulator of each electric pole is removed in a dead-line state in order to remove an obstacle and to secure a safe dead-line work section in which newly established electric wires 110 are stretched and tensioned at each of the work-section start electric pole 10 and the work-section end electric pole 10.

[0095] An electric pole is established within the work section, and newly established electric wires 110 are stretched, tensioned, and fixed in a dead-line state at each of the work-section start electric pole 10 and the work-section end electric pole 10, and then, as shown in FIG. 11, jumper wires 130 of the newly established electric wires 110, which have been stretched and tensioned at each of the work-section start electric pole 10 and the work-section end electric pole 10 after the establishment of the electric pole within the work section, are sequentially connected to old electric wires 2 in a bypass fashion.

[0096] As shown in FIG. 7, electric wire clips of insulated live-line wire grips 20 for holding the tension of electric wires are installed inside a work section defined by a branch-line electric pole 100a within the work section at points at which a safe dead-line work section of electric wires 1a to be removed is secured. After the installation is completed, as shown in FIG. 8, one end of a bypass jumper means 30 is connected to an electric wire outside each of the electric wire clips of the insulated live-line wire grips 20 within the work section span, and the other end of the bypass jumper means 30 is connected to an electric wire located outside the branch-line electric pole 100a deviating from the work section, whereby bypass connection is completed. As shown in FIG. 9, jumper wires 3a of the branch-line electric pole 100a are separated, and then, as shown in FIG. 10, an electric wire within the pole-to-pole span is separated from the point at which each of the electric wire clips of the insulated live-line wire grips 20 is held, whereby a safe dead-line work section is formed. Subsequently, the electric wire extending from the point of separation to a suspension insulator of each electric pole is removed in a dead-line state in order to secure a safe dead-line work section in which newly established electric wires 110a are stretched and tensioned at the branch-line electric pole 100a.

[0097] The newly established electric wires 110a are stretched, tensioned, fixed, and connected in a dead-line state at the branch-line electric pole 100a, and then, as shown in FIG. 11, and jumper wires 130a of the newly established electric wires 110a, which have been stretched and tensioned at the branch-line electric pole 100a in the work section, are sequentially connected to old electric wires 2a of the branch line in a bypass fashion. Subsequently, as shown in FIG. 12, bypass jumper means 30 installed at an electric pole between the work-section start electric pole 10 and the work-section end electric pole 10 and the branch-line electric pole 100a are sequentially separated, and electric wires 1 and la to be removed, the tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips, and an electric pole corresponding thereto are removed in a dead-line state, whereby it is possible to perform electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state in the case in which the branch-line electric pole 100a is present within the work section.

Embodiment 3

[0098] The case in which an electric pole 10b having a pole-mounted transformer is present within a work section, as shown in FIG. 13

[0099] Electric-pole establishment work, electric-pole assembly work, and electric wiring work are performed within a work section in a dead-line state in order to perform uninterruptible preparation work, and, as shown in FIG. 13, electric wire clips of insulated live-line wire grips 20 for holding the tension of electric wires are installed inside a work section defined by a work-section start electric pole 10 and a work-section end electric pole 10 at points at which a safe dead-line work section of electric wires to be removed is secured. After the installation of the insulated live-line wire grips 20 is completed, as shown in FIG. 14, one end of a bypass jumper means 30 is connected to an electric wire outside each of the electric wire clips of the insulated live-line wire grips 20 within the work section span, and the other end of the bypass jumper means 30 is connected to an electric wire located outside each of the work-section start electric pole 10 and the work-section end electric pole 10 deviating from the work section, whereby bypass connection is completed. As shown in FIG. 15, jumper wires 3 of the work-section start electric pole 10 and the work-section end electric pole 10 are separated, and then, as shown in FIG. 16, an electric wire within the pole-to-pole span is separated from the point at which each of the electric wire clips of the insulated live-line wire grips 20 is held, whereby a safe dead-line work section is formed. Subsequently, the electric wire extending from the point of separation to a suspension insulator of each electric pole is removed in a dead-line state in order to secure a safe dead-line work section in which an electric pole is established and newly established electric wires 110 are stretched and tensioned at each of the work-section start electric pole 10 and the work-section end electric pole 10 in a dead-line state.

[0100] As shown in FIG. 17, an electric pole is established within the work section, and newly established electric wires 110 are stretched, tensioned, and fixed in a dead-line state at each of the work-section start electric pole 10 and the work-section end electric pole 10, and then, as shown in FIG. 17, jumper wires 130 of the newly established electric wires 110, which have been stretched and tensioned at each of the work-section start electric pole 10 and the work-section end electric pole 10 after the establishment of the electric pole within the work section, are sequentially connected to old electric wires 2 in a bypass fashion.

[0101] As shown in FIG. 18, an uninterruptible transformer apparatus 60 is installed at an electric pole 10b having a pole-mounted transformer within the work section, and a secondary low-voltage cable 70a of the uninterruptible transformer apparatus is connected to a secondary low-voltage wire 80 of an installed pole-mounted transformer 50, whereby bypass connection is completed. Subsequently, as shown in FIG. 19, a secondary drop wire 52 of the pole-mounted transformer 50 is separated, a COS 51 of the pole-mounted transformer is opened, the pole-mounted transformer 50 is removed and reused so as to be installed at a newly established electric pole 100b or a new pole-mounted transformer is installed at the newly established electric pole 100b, a COS 51a of the newly established pole-mounted transformer 50a is closed, a secondary drop wire 52a of the transformer is connected, the uninterruptible transformer apparatus 60 is powered off, and a low-voltage cable 70a of the uninterruptible transformer apparatus 60 is separated, whereby the uninterruptible establishment and relocation of the transformer within the work section is completed.

[0102] In the case in which a plurality of electric poles each having a pole-mounted transformer 50 is present within the work section, the process of relocating the pole-mounted transformer 50 is repeatedly performed a number of times equal to the number of electric poles each having a pole-mounted transformer. After the replacement and relocation of the pole-mounted transformers within the work section is completed, as shown in FIG. 20, bypass jumper means 30 installed at an electric pole between the work-section start electric pole 10 and the work-section end electric pole 10 and the branch-line electric pole 100a are separated, and electric wires 1 to be removed, the tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips, an electric pole corresponding thereto, and the uninterruptible transformer apparatus 60 are removed in a dead-line state, whereby it is possible to perform electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state in the case in which the electric pole having the transformer mounted thereto is present within the work section.

Embodiment 4

[0103] The case in which a branch-line electric pole 100a and an electric pole 10b having a pole-mounted transformer are present within a work section, as shown in FIG. 21

[0104] Electric-pole establishment work, electric-pole assembly work, and electric wiring work are performed within a work section in a dead-line state in order to perform uninterruptible preparation work, and, as shown in FIG. 22, electric wire clips of insulated live-line wire grips 20 for holding the tension of electric wires are installed inside a work section defined by a work-section start electric pole 10, a work-section end electric pole 10, and a branch-line electric pole 100a at points at which a safe dead-line work section of electric wires to be removed is secured. After the installation is completed, one end of a bypass jumper means 30 is connected to an electric wire outside each of the electric wire clips of the insulated live-line wire grips 20 within the work section span, and the other end of the bypass jumper means 30 is connected to an electric wire located outside each of the work-section start electric pole 10, the work-section end electric pole 10, and the branch-line electric pole 100a deviating from the work section, whereby bypass connection is completed. As shown in FIG. 23, jumper wires 3 of the work-section start electric pole 10, the work-section end electric pole 10, and the branch-line electric pole 100a are separated, and then, as shown in FIG. 24, an electric wire within the pole-to-pole span is separated from the point at which each of the electric wire clips of the insulated live-line wire grips 20 is held, whereby a safe dead-line work section is formed. Subsequently, the electric wire extending from the point of separation to a suspension insulator of each electric pole is removed in a dead-line state in order to remove an obstacle and to secure a safe dead-line work section in which newly established electric wires 110 and 110a are stretched and tensioned at the work-section start electric pole 10, the work-section end electric pole 10, and the branch-line electric pole 100a.

[0105] As shown in FIG. 25, newly established electric wires 110 and 110a are stretched, tensioned, and fixed in a dead-line state at the work-section start electric pole 10, the work-section end electric pole 10, and the branch-line electric pole 100a, and then jumper wires 130 of the newly established electric wires 110 and 110a, which have been stretched and tensioned at the work-section start electric pole 10, the work-section end electric pole 10, and the branch-line electric pole 100a, are sequentially connected to old electric wires 2 in a bypass fashion.

[0106] As shown in FIG. 26, an uninterruptible transformer apparatus 60 is installed at an electric pole 10b having a pole-mounted transformer within the work section, and a secondary low-voltage cable 70a is connected to a secondary low-voltage wire 80 of a pole-mounted transformer 50, whereby bypass connection is completed. Subsequently, a secondary drop wire 52 of the pole-mounted transformer 50 is separated, and a COS 51 of the pole-mounted transformer is opened. As shown in FIG. 27, the pole-mounted transformer 50 is removed and reused so as to be installed at a newly established electric pole 100b or a newly established pole-mounted transformer is installed at the newly established electric pole 100b, a COS 51a of the newly established pole-mounted transformer 50a is closed, a secondary drop wire 52a of the pole-mounted transformer 50a is connected, the uninterruptible transformer apparatus 60 is powered off, and a low-voltage cable 70a of the uninterruptible transformer apparatus 60 is separated, whereby the uninterruptible establishment and relocation of the transformer within the work section is completed.

[0107] In the case in which a plurality of electric poles each having a pole-mounted transformer is present within the work section, the process of replacing and relocating the pole-mounted transformer is repeatedly performed a number of times equal to the number of electric poles each having a pole-mounted transformer.

[0108] After the replacement and relocation of the pole-mounted transformers within the work section is completed, as shown in FIG. 28, bypass jumper means 30 installed at an electric pole between the work-section start electric pole 10 and the work-section end electric pole 10 and the branch-line electric pole 100a are sequentially separated, and electric wires 1 and 1a to be removed, the tension of each of which is held by a corresponding one of the electric wire clips of the insulated live-line wire grips, an electric pole corresponding thereto, and the uninterruptible transformer apparatus 60 are removed in a dead-line state, whereby it is possible to perform electric pole relocation work, electric pole replacement work, and electric pole route change work in an uninterruptible state in the case in which the branch-line electric pole 100a and the electric pole 10b having the pole-mounted transformer are present within the work section.

[0109] Meanwhile, when the uninterruptible power distribution method for performing the in-section work in the dead-line state by separating the electric wire within the pole-to-pole span using the insulated live-line wire grip and the bypass jumper wire according to the present invention is performed, the bypass jumper means 30, which connects the electric wire 1 to be removed and the old electric wire 2 to each other, is not limited, but is variously applicable.

[0110] First, referring to FIGS. 1 to 28, a bypass jumper cable 30a made of a single wire is applicable as the bypass jumper means 30. At this time, the bypass jumper cable 30a is capable of connecting an electric wire 1 to be removed and an old electric wire 2, each having three phases, to each other. During work, therefore, an electric wire to be removed and an old electric wire having one of the three phases may be individually connected to each other, or electric wires to be removed and old electric wires having the three phases may be simultaneously connected to each other.

[0111] In addition, as shown in FIG. 29, a work switch 30b capable of simultaneously performing three-phase input and output is applicable as the bypass jumper means 30. At this time, an electric wire 1 to be removed having each of the three phases may be connected to the work switch 30b using a terminal cable 30c for the switch, and an old electric wire having each of the three phases may be connected to the work switch 30b using another terminal cable 30c for the switch. During work, therefore, an electric wire to be removed and an old electric wire having one of the three phases may be individually connected to each other, or electric wires to be removed and old electric wires having the three phases may be simultaneously connected to each other.

[0112] That is, in the case in which the work switch 30b is applied, the work switch 30b may be open for one phase, for which the work is performed, and may be closed for the other two phases when work based on a single phase is performed, although this is not shown in the figure. When work is simultaneously performed for three phases, the work switch 30b may be open for the three phases for which the work is performed.