JP5072575B2 - Bypass tool for electricity meter - Google Patents

Description

  The present invention is a bypass tool that is attached to the electric wire connection side of a watt-hour meter that measures the amount of power used, and is used for exchanging the watt-hour meter uninterruptibly.

  Conventionally, the amount of power used in ordinary households and various business establishments is measured by a watt hour meter attached to each house or each business establishment, and the electricity rate is calculated based on the measurement data. Paid to the company. Therefore, the watt-hour meter must be able to always measure an accurate amount of electric power without malfunction, and must maintain this accuracy. Therefore, the watt-hour meter is currently replaced with a new one in a cycle of about 10 years.

  However, at the time of this periodic replacement or repair, even if temporarily, the external electric wire connected to the watt hour meter and the internal electric wire for indoor drawing must be removed from the watt hour meter. In particular, since the external electric wires are live wires, there is always a danger. Therefore, it is necessary to insulate each electric wire so as not to cause an accident. As a result, power outages for tens of minutes or longer have been forced, causing great inconvenience to power users. This is because, even if it is an ordinary household, not to mention the office, when network communication is performed using a personal computer, etc. And the burden caused by power outages during repairs is by no means small.

Therefore, as a technique for solving such a problem, as described in Patent Documents 1 and 2 below, a protruding shape to be inserted after the electric wire is removed from the input / output terminal for electric wire connection in the watt-hour meter. Adapter body provided with multiple pairs of terminal fittings that form a connection part and a hole-like wire connection part into which the removed electric wire is inserted, and corresponding input / output terminals using this adapter body are short-circuited and non-short-circuited. A technology that makes it possible to perform uninterruptible replacement and uninterruptible repair of watt-hour meters after the second time by using a connector that switches to a state has been proposed and has already been patented.
Japanese Patent No. 3079289 Japanese Patent No. 3404553

  However, in these prior art watt-hour adapters, when the first watt-hour meter is replaced or repaired, the wires are temporarily removed from the watt-hour meter input / output terminals as described above. Therefore, it is necessary to insert the protruding connection part of the terminal fitting into the removed wire hole and to insert the removed wire into the wire insertion hole of the terminal fitting. It had a problem. Furthermore, this electric wire insertion / extraction operation includes a risk of a short circuit accident when the input electric wire is a live wire.

  Therefore, the present invention eliminates the problems of the prior art and completely requires the insertion / removal of dangerous electric wires from the first watt-hour meter replacement work or repair work. The energy meter bypass tool can be used to complete the replacement and repair work of the energy meter very quickly in a short time while using only a simple bypass tool and maintaining an uninterruptible state. It is intended to disclose the provision and its working means.

  The watt-hour meter bypass tool according to claim 1 according to the present invention, which is provided to achieve the object, includes a plurality of input terminals a and a plurality of output terminals b at one end, and the surface thereof is provided. A tool that is used for the watt-hour meter A structured such that the terminals a and b can be exposed by removing the covering danger prevention cover c, and is a horizontally long container having an insulating structure as a whole. Two bypass metal fittings 2 and 3 made of a conductor are accommodated in a non-contact state inside the main body 1, and one of the input terminal a and the output terminal b of the watt-hour meter A are respectively connected to both the metal fittings 2 and 3. Contact pins 4, 4 to be brought into contact with each other are connected, and their tip portions are projected to the back side of the container body 1, and fixing pin holes 6, 6 are formed near the longitudinal ends of the container body 1. It has a certain configuration.

Furthermore, the power meter bypass tool according to the claim 1, the container main body 1 in the bypass tool electric dynamometer is provided with a protruding part 8 protruding toward the front at a position deviated to the front side It is a configuration.

The configuration of the watt-hour bypass tool according to claim 2 is provided with a plurality of input terminals a and a plurality of output terminals b at one end, and when the danger prevention cover c covering the surface is removed, A tool used for the watt-hour meter A having a structure capable of exposing the terminals a and b, and two bypass metal fittings 2 made of a conductor inside a horizontally long container body 1 having an insulating structure as a whole. , 3 are accommodated in a non-contact state with each other, and contact pins 4 and 4 are connected to each of the metal fittings 2 and 3 to be brought into contact with one of the input terminal a and one of the output terminals b in the watt-hour meter A, A bypass tool for a watt-hour meter having a tip end projecting toward the back side of the container body 1 and forming pin holes 6 and 6 for fixing in the vicinity of both longitudinal ends of the container body 1; 1 is the bottom of the container when not in use The installation state is confirmed so that the upper end 92 protrudes to the surface side of the container body 1 against the pressing force of the elastic body 93 when the lower end 91 receives an external force. In this configuration, pins 9 are provided .

According to the third aspect of the present invention , the contact pins 4 and 4 in the watt-hour bypass tool according to the first or second aspect are attached via springs 4 s and moved toward the inside of the container body 1. The configuration is made possible .

According to the fourth aspect of the present invention, the fixing pin holes 6 and 6 formed near both ends of the container main body 1 in the wattmeter bypass tool according to any one of the first to third aspects are provided with the watthour meter. mounting holes h which is formed near both ends of the safety cover c terminal surface at a, is obtained by the configuration at about the same distance portion to the distance h is formed as a horizontally elongated holes.

According to the fifth aspect of the present invention , the pinholes 6 and 6 for fixing in the electricity meter bypass tool according to any one of the first to fourth aspects are provided with a hollow portion 61 in the middle portion in the thickness direction of the container body 1. The adjuster 54 that is provided and attached to the intermediate portion 51 in the longitudinal direction of the container body fixing pin 5 so as to be capable of relative movement in the axial direction is held in the cavity portion 61 so as to be capable of lateral movement. .

According to the sixth aspect of the present invention , the container body 1 in the watt-hour bypass tool according to any one of the first to fifth aspects is formed of a transparent material that can be seen through .

  As is clear from the above description, the present invention has a plurality of input terminals and a plurality of output terminals at one end, and when the safety cover covering this surface is removed, each of these terminals is exposed. It is a tool used for a watt hour meter as a structure capable of accommodating two bypass metal fittings made of a conductor in a non-contact state inside a horizontally long container body that is entirely insulated. A contact pin that contacts one of the input terminals and one of the output terminals of the watt hour meter is connected to each of the two metal fittings, and the tip of the contact pin protrudes from the back side of the container body. Because it has a structure with pin holes for fixing near both ends in the direction, remove the safety cover that covers the terminal part of the watt hour meter when replacing or repairing the watt hour meter, Using the fixing pin holes near both ends allusion to bypass fitting the surface of the terminal, it may be preferably screwed by using the cover fixing screw holes after removal of the safety cover. At this time, the contact pins connected to the two bypass fittings are brought into contact with the respective input terminals and output terminals to form a bypass circuit.

  After the bypass circuit is formed in this way, the watt-hour meter main body is removed from the base and replaced with a new one, or it may be repaired on the spot for a simple repair, but may be replaced with another repaired product. Needless to say, when the replacement of the watt hour meter body is completed, the bypass tool is immediately removed, and a danger prevention cover is attached to the surface of the terminal to restore the original state.

  By using the bypass tool according to the present invention, it is not necessary to insert / remove the input / output wires.Therefore, without touching these wires directly, minimizing the risk of short-circuit accidents, There is a remarkable effect that the watt-hour meter replacement work and repair work can be completed in a very simple and quick manner.

Since the present invention has the above-described configuration, the contact pins of the watt-hour bypass tool are attached via springs as in claim 3 , and the container main body is By assuming that it is formed to be movable inward, each contact pin can be brought into contact with the corresponding input / output terminal individually without being affected by the other contact pins, A reliable energization can be performed.

Further, the fixing pin holes formed near both ends of the container body in the bypass tool as in claim 4 are spaced between the mounting holes formed near both ends of the danger prevention cover on the terminal surface in the watt-hour meter. It is not necessary to form a fixing hole or a fixing screw hole separately, and it is not necessary to separately form a fixing hole or a fixing screw hole. , Reliable attachment can be performed while adjusting the position using the horizontally long hole.

As in claim 5, the pin hole for fixing the container main body is provided with a hollow portion in the middle portion in the thickness direction of the container main body, and can be axially moved relative to the intermediate portion in the longitudinal direction of the container main body fixing screw. Since the attached adjuster is held in the cavity so as to be laterally movable, the container body fixing screw can be always held in the fixing pin hole of the container body. Is applied to the terminal surface of the watt-hour meter, the screw can be immediately positioned and screwed, so that the container body can be fastened and the bypass circuit can be quickly formed.

As in claim 6 , the container main body of the watt-hour meter bypass tool is made of a transparent material that can be seen through, so that the input side terminal group of the watt-hour meter can be seen through from the container main body. Therefore, the container body can be reliably and quickly fixed to the input side terminal group.

Further, as in claim 1 of the present invention, the container main body in the watt-hour meter bypass tool is provided with a projecting portion projecting forward at a location biased to the surface side. Unless the main body cover is removed, the bypass operation cannot be performed unless the main body cover is removed. In this way, after the bypass circuit is formed by the bypass tool, the work procedure of removing the main body cover is automatically avoided, minimizing the time for forming the bypass circuit, and After the replacement work, the main body cover cannot be attached unless the bypass tool is removed, and the work can be completed while minimizing the time for forming the bypass circuit.

  In addition, as another means, a structure that covers a part of the danger prevention cover that covers the terminal surface with the main body cover, and a structure that the terminal face danger prevention cover cannot be removed unless the main body cover is removed in advance, The body cover and the danger prevention cover that covers the terminal surface can be integrated, and the terminal surface cannot be released unless the body cover is removed. Can be minimized.

As in claim 2 of the present invention, when the container main body in the wattmeter bypass tool is not in use, the lower end protrudes slightly toward the back side of the container main body, and when the lower end receives external force, the elastic body By providing an installation state confirmation pin that has a structure in which the upper end protrudes slightly to the surface side of the container main body against the pressing force, not only the state of protrusion of the pin to the surface side is visually recognized. Since contact confirmation with a fingertip can also be performed, it is possible to confirm whether or not the bypass tool is properly attached, and to perform safe work without danger.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are diagrams for explaining a typical watt-hour meter having a target structure using the watt-hour bypass tool of the present invention, and FIG. FIG. 2 is a side view seen from the right side of the watt-hour meter with the cover removed.

  In the plan view, the watt-hour meter A has three communication circuit formers 31 that are horizontally long in plan view, a watt-hour meter main body 32, and a timer 33 for switching between day and night power in the vertical direction. The whole is covered with a transparent body cover 34. Also, in these lower portions, three external line input terminals a and three internal line lead terminals b are arranged in parallel in the left-right direction, and the upper and lower ends of the terminal group are covered at the left and right ends. Attachment holes h and h for screwing the danger prevention cover c are formed, and the danger prevention cover c is screwed using the attachment holes h and h.

  Next, an example of the bypass tool according to the present invention will be described. 4 to 12 are views showing a first embodiment of the bypass tool, in which FIG. 3 is an exploded front view showing the main parts exploded in the vertical direction, and FIG. 4 shows the main parts. FIG. 5 is a plan view, FIG. 6 is a plan view of the lower half member, FIG. 7 is a bottom view, FIG. 8 is a front view, and FIG. 9 is a cross-sectional view taken along line AA in FIG. 10 is a sectional view taken along the line BB, FIG. 11 is a sectional view taken along the line CC, and FIG. 12 is a sectional view taken along the line DD.

  FIGS. 13 to 17 are component diagrams of each part. FIGS. 13 and 14 are explanatory diagrams of the bypass metal fitting, FIG. 15 is an explanatory diagram of the contact pin and related members, and FIG. 16 is an explanatory diagram of the container body fixing screw and related members. FIGS. 17A and 17B are explanatory diagrams of the operation confirmation pin and related members.

  As shown in FIG. 5, the bypass tool shown in this embodiment has a horizontally long rectangular shape in plan view, and as shown in FIGS. The upper half member 1a and the lower half member 1b are divided and formed of an insulating resin member having transparency. Further, these upper and lower members 1a and 1b are connected by three connecting screws 10, and these connecting screws 10 are received by a screw receiving portion 10a at the lower end surface as shown in the bottom view of FIG. However, it does not protrude to the bottom side.

  Between these two members, the following bypass fittings 2 and 3, contact pins 4, fixing pins 5, and attachment state confirmation pins 9 are interposed. As shown in the perspective view of FIG. 13, the first bypass fitting 2 has a substantially U-shaped planar shape, has a recessed portion 2a in the middle in the longitudinal direction, and has contact pins 4 at both ends. , 4 are metal plates made of conductive plates provided with connecting holes 2h, 2h. As shown in FIG. 14 as a perspective view, the other bypass fitting 3 has a horizontally long rectangular shape and is made of a conductive plate provided with connecting holes 3h and 3h for contact pins 4 and 4 on the left and right sides avoiding the intermediate portion. It is a metal fitting.

  As shown in FIG. 6, these bypass fittings 2 and 3 are placed in a small recess 13 formed between the U-shaped partition wall 11 and the peripheral wall 12 in the lower half member 1 b of the container body 1. The bypass metal fitting 3 is arranged, and the bypass metal fitting 2 is arranged in a large concave portion 14 formed on the outside thereof so as to be accommodated without contacting each other.

  As shown in FIG. 15, the contact pin 4 is tightened at the lowermost end to the external line input terminal a and the internal line lead terminal b in the watt-hour meter A, and more specifically, to tighten and fix these input / output lines. A shaft 42 having a contact surface 41 to be brought into contact with the screw head and a bolt portion 44 are formed on the ring-shaped flange portion 43. The bolt portion 44 is inserted into the pin connecting holes 2h and 3h of the bypass fittings 2 and 3, and the upper part thereof is fixed with the fastening nut 4n shown in FIG. 15, and each bypass fitting 2 and 3 is fixed as shown in FIG. Connect to Further, a compression coil spring 4s is disposed on the upper portion of the nut 4n, and the shafts 42 are respectively inserted into the four contact pin holding holes 15 formed in the lower half member 1b of the container body 1 shown in FIG. Then, the upper part is covered with the upper half member 1a and interposed between the upper and lower members 1a and 1b as shown in FIG. 4, and the shaft 42 of each contact pin 4 projects from the pin holding hole 15 to the bottom side. Let This state can also be confirmed from the bottom view of FIG. 7 and the front view of FIG.

  Fixing pin holes 6 and 6 are formed in portions near both ends of the container body 1, respectively. As shown in FIGS. 5 and 6, the pin holes 6 and 6 are horizontally long holes and are substantially the same as the distance between the mounting holes h and h formed in the danger prevention cover c on the terminal surface of the watt-hour meter A. A position that is formed at an interval, and when the danger prevention cover c is removed, the container body 1 can be fixed with the fixing pins 5 using the removal screw hole of the fixing screw of the danger prevention cover c. Is formed.

  The fixing pin holes 6 and 6 face the mating surfaces of the upper half member 1a and the lower half member 1b, and as shown in FIGS. 3 and 6, the pin holes 6 are formed on the upper surface of the lower half member 1b. When the upper half member 1a and the lower half member 1b are united with each other by forming a countersink that is similar in shape and wider than the pin hole 6, the middle of the container body 1 in the thickness direction is formed between the two members 1a and 1b. A hollow portion 61 is formed at a location. On the other hand, as shown in FIG. 16, the fixing pin 5 of the container body 1 is provided with a dish-shaped tightening portion 52 having a slipper on the peripheral surface and a driver groove formed on the upper surface at the upper end, and at the lower end. It is assumed that a donut-shaped adjust string 54 having a fitting hole 55 formed in the center is attached to an appropriate intermediate portion in the vertical direction of the pin shaft 51 provided with the spiral screw 53 so as to be movable in the axial direction. As shown, the adjuster string 54 is fitted and held in the cavity portion 61 so as to be laterally movable, and the fixing pin 5 is maintained in the pin hole 6 at all times.

  As shown in FIGS. 9 to 12, which show cross sections of the parts indicated by the arrows A, B, C, and D shown in FIG. 5, the container body 1 is located at a location biased toward the surface side of the upper half member 1 a. As shown in FIGS. 5 and 7, the protruding portion 8 that protrudes forward is integrally provided over the entire length of the upper half member 1 a. Due to the presence of the protruding portion 8, as described in the section of the best mode for carrying out the invention, the protruding portion 8 is a peripheral protruding portion of the main body cover that covers the watt hour meter body during the bypass circuit forming operation. It is assumed that the bypass operation cannot be performed unless the main body cover is removed by contacting the outer peripheral surface or the upper surface, and the time for forming the bypass circuit is minimized.

  In addition, the container body 1 is provided with the rod-shaped confirmation pin 9 shown in FIG. 17 by placing the lower end of the elastic body 93 on the ring flange 94 to apply an elastic pressure. The lower end portion 91 is incorporated so as to protrude slightly from the back side of the container body 1.

  FIG. 9 is a cross-sectional view taken along line AA in FIG. 5 and shows a portion of the fixing pin 5. FIG. 10 is a cross-sectional view taken along the line BB of FIG. 10 and shows the contact pin 4 portion. FIG. 11 is a cross-sectional view taken along the line CC of FIG. 11 and shows a portion of the connecting screw 10. FIG. 12 is a sectional view taken along the line DD, showing a portion of the installation state confirmation pin 9.

  Next, means for using the bypass tool having such a structure will be described with reference to the bottom view for use state explanation shown in FIG. 18 and the front view for use state explanation shown in FIG. In order to perform the bypass circuit forming operation of the watt hour meter A using the bypass tool of the present embodiment, first, after removing the cover of the watt hour meter A, the danger prevention cover c is removed and the terminal surface of the input / output line The container body 1 is applied to the top, and the fixing pins 5 and 5 at both ends are rotated to fix the danger prevention cover c in the screw holes that have been fixed. By this fixing operation, the lower surface of each contact pin 4 is applied to the terminal surface indicated by symbol L. At the same time, the lower surface of the container body 1 is applied to the tool application surface F indicated by oblique lines in FIG. , 9 is pushed up. Due to this contact pressure, the pin 9 moves upward against the pressing force of the elastic body 93, and the upper end 92 of the pin 9 protrudes slightly toward the surface side of the container body 1 as shown in FIG. 19. By projecting the installation state confirmation pin 9 to the surface side of the container main body 1, the correctness of the installation state is confirmed not only by visual inspection but also by a fingertip. After confirming that the installation state confirmation pins 9, 9 protrude from the surface side of the container body 1, the watt hour meter A is replaced.

  In the above description of the embodiments, the container body 1 in the bypass tool is formed of a transparent material, so that the contact pins 4 contact the external line input terminal a and the internal line lead terminal b provided in the watt-hour meter A. Although it has been described that the operation can be performed while confirming from the outside through the container body 1, the container body 1 does not necessarily need to be a transparent body, and may be entirely formed of an opaque material or partially opaque. It can also be implemented as a state.

  Even if the container body 1 is entirely or partially formed of an opaque material, the contact state of each contact pin 4 with respect to the external line input terminal a and the internal line lead terminal b provided in the watt-hour meter A is normal. As a means for confirming whether or not there is an installation state confirmation pin 9 as in the above-described embodiment, it can be confirmed. However, for example, a circuit in which an energization indicator lamp and a resistance element are connected in series to a conductive wire or conductor that is in contact with or connected to the bypass metal fittings 2 and 3 between each of the bypass metal fittings 2 and 3 and the earth metal fitting. And the other end is connected to ground so that when the bypass is formed normally, the energization indicator lamp is turned on, and this energization indicator lamp is placed in the recess provided on the surface of the container body or in the light transmission case. It may be possible to make visual confirmation by turning on the inside.

  20 to 22 are a plan view, a longitudinal cross-sectional view, and a circuit diagram showing a bypass tool that enables visual confirmation of the bypass circuit. As described above, the bypass tool shown in the embodiment is that the entire container body 1 is formed of an opaque material, and even when the internal state cannot be confirmed, the bypass tool has been normally formed. The bypass tool of the Example which enabled it to confirm by visual observation is shown. In the container main body 1 shown in the embodiment, when the bypass metal fittings 2 and 3 shown in the embodiment are moved upward with the upward movement of the contact pin 4 due to the contact between the input terminal a and the output terminal b, Contacts 71 and 71 are arranged at locations where they come into contact with these bypass fittings 2 and 3, respectively, via wiring 73 provided on a base 72 in a box-shaped energization display portion 7 formed at the top of the container body 1. An energization indicator lamp LED and a resistor r are connected by a series circuit 74. The energization display lamp LED of this embodiment is incorporated in the circuit 72 in the energization display section 7, and when the contact pins 4 come into contact with the input / output terminals a and b and the bypass fittings 2 and 3 are moved upward, the contact is made. An energization circuit is formed via the children 71 and 71 and lights up. By doing in this way, the operator can perform a normal contact state with the terminals of the bypass metal fittings 2 and 3, and thus confirmation of the formation of the normal bypass circuit by visual observation of lighting of the energization display lamp LED, and is relieved. Exchange work etc. of watt-hour meter main part 32 can be performed.

  FIG. 23 to FIG. 25 are a plan view, a longitudinal sectional view, and a circuit diagram showing another structure of the bypass tool that enables visual confirmation of the bypass circuit. In the bypass tool shown in the embodiment, while each contact pin 4 is in normal contact with the input / output terminals a and b and the bypass circuit is formed, in other words, during the replacement work of the watt-hour meter body 32, the energization display is performed. In the bypass tool according to the present invention, each contact pin 4 is normally connected to the input / output terminals a and b. Once the bypass circuit is formed by contact, since the bypass circuit is maintained until the loosening of the fixing pin 5 after the completion of the work, the bypass circuit is normally formed when the bypass tool is attached. It is also of a nature that it only needs to be confirmed. In the bypass tool shown in the embodiment, the switch SW is incorporated in the energization display circuit 74 of the bypass tool shown in the embodiment, and the circuit is formed only when the switch button 75 is pressed, and the energization display lamp LED is turned on. It is what you do. After confirming that the energization indicator lamp LED is turned on by pressing the switch button 75, the watt hour meter main body 32 can be replaced with ease. The other points are the same as those in the embodiment shown in FIGS. The bypass tool according to the present invention can also be implemented in this way. You may implement the lighting display means of this electricity supply indicator lamp LED in the bypass tool formed with the said transparent material.

  In the bypass tool provided with the energization display lamp LED for confirming the normal formation of the bypass circuit shown in these embodiments, the installation state check pin 9 shown in the main embodiment may be provided. Although it is good, it may not be provided. Moreover, the said bypass metal fittings 2 and 3 said in the said Example do not necessarily need to be a plate body, For example, you may use a round conducting wire, a shield wire, etc. Furthermore, although the bypass metal fittings 2 and 3 are shown as being divided and arranged on the front and back on a horizontal plane, they can be arranged in a vertical direction via an insulator. The lower end surface of the contact pin 4, that is, the contact surface 41 with the terminal surface is silver-plated in the above embodiment, but other superconducting metals are welded or adhered. It may also be

  Although the embodiment considered to be representative of the present invention has been described above, the present invention is not limited to the above-described embodiment structure, and has the constituent features described in the present invention, and The object of the present invention can be achieved and can be implemented with appropriate modifications within a range having effects.

  The bypass tool for the watt-hour meter according to the present invention can be used to replace or repair the watt-hour meter body under a completely uninterruptible state, using the terminal for fixing the input / output wires provided in the watt-hour meter as it is. Because it can, the construction will be welcomed by all electricity users, and it is highly likely to be used by construction personnel.

The top view of the whole watt-hour meter. The side view seen from the right side in FIG. The components exploded front view which decomposed | disassembled and showed the main components to the up-down direction. The internal structure longitudinal cross-sectional view which shows the state which assembled the main components. FIG. The top view of the lower half member. The bottom view. The front view. AA sectional drawing in FIG. BB sectional drawing. CC sectional drawing. DD sectional drawing. Explanatory drawing of a bypass metal fitting. Explanatory drawing of a bypass metal fitting. Explanatory drawing of a contact pin and a related member. Explanatory drawing of a container main body fixing screw and a related member. Explanatory drawing of an operation confirmation pin and a related member. The bottom view for use condition explanation. The front view. The top view which shows another Example. FIG. The circuit diagram. The top view which shows the further another Example. FIG. The circuit diagram.

DESCRIPTION OF SYMBOLS 1 Container body 1a Upper half member 1b Lower half member 2 Bypass metal fitting 3 Bypass metal fitting 4 Contact pin 4s Spring 5 Fixing pin 6 Fixing pin hole 8 Protruding part 9 Installation state confirmation pin 91 Lower end part 92 Upper end part 93 Elastic body 10 Connection Screw A Energy meter a Input terminal b Output terminal c Danger prevention cover

Claims (7)

Having multiple input terminals (a) and multiple output terminals (b) at one end, and removing the safety cover (c) covering this surface, expose each of these terminals (a, b) It is a tool that uses a watt hour meter (A) with a structure capable of
Two bypass metal fittings (2, 3) made of a conductor are accommodated in a non-contact state inside a horizontally long container body (1) that is entirely insulated, Connect the contact pins (4, 4) that contact one of the input terminals (a) and one of the output terminals (b) in the watt-hour meter (A), and connect the tip of the contact pins to the back side of the container body (1). A bypass tool for a watt-hour meter in which a pin hole for fixing (6, 6) is formed in a portion near both longitudinal ends of the container body (1) , and
An electricity meter bypass tool in which the container body (1) is provided with a projecting portion (8) projecting forward at a location biased toward the surface side . Having multiple input terminals (a) and multiple output terminals (b) at one end, and removing the safety cover (c) covering this surface, expose each of these terminals (a, b) It is a tool that uses a watt hour meter (A) with a structure capable of
Two bypass metal fittings (2, 3) made of a conductor are accommodated in a non-contact state inside a horizontally long container body (1) that is entirely insulated, Connect the contact pins (4, 4) that contact one of the input terminals (a) and one of the output terminals (b) in the watt-hour meter (A), and connect the tip of the contact pins to the back side of the container body (1). A bypass tool for a watt-hour meter in which a pin hole for fixing (6, 6) is formed in a portion near both longitudinal ends of the container body (1), and
When the container body (1) is not in use, the lower end portion (91) protrudes slightly toward the back side of the container body (1), and when the lower end portion (91) receives an external force, the pressing force of the elastic body (93) against the upper end (92) of Citea Ru electrostatic dynamometer bypass tool and shall have a Shomoto structure has been installed state confirmation pin projecting (9) on the surface side of the container body (1). The watt-hour meter according to claim 1 or 2 , wherein the contact pins (4, 4) are respectively attached via springs (4s) so as to be movable inward of the container body (1). Bypass tool. Fixing pin holes (6, 6) formed near both ends of the container body (1) are formed near both ends of the danger prevention cover (c) on the terminal surface of the watt-hour meter (A) The bypass tool for a watt-hour meter according to any one of claims 1 to 3, wherein the tool is formed as a laterally elongated hole at substantially the same interval as the interval (h, h). The fixing pin hole (6, 6) has a hollow portion (61) in the middle portion in the thickness direction of the container body (1), and the longitudinal direction middle portion (51) of the container body fixing pin (5). The wattmeter bypass tool according to any one of claims 1 to 4 , wherein an adjuster (54) mounted so as to be axially movable is held in the cavity (61) so as to be laterally movable. The bypass tool for a watt-hour meter according to any one of claims 1 to 5 , wherein the container body (1) is formed of a transparent material that can be seen through.   Energization indicator lamp that indicates that the main body (1) contacts the terminals (a) and (b) of the watt-hour meter (A) and the contact pins (4, 4) normally and the normal bypass circuit is formed. The bypass tool for a watt-hour meter according to any one of claims 1 to 6, further comprising an LED.

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