KR100655135B1 - Construction method of electric switchboard - Google Patents

Abstract

The present invention relates to a construction method of an electrical switchgear capable of attenuating shock and vibration so as to prevent loosening of a connection state of a power cable connected to an electrical switchgear by a vibration or shock of a building. In this construction method, the front panel is opened and the electrical switchboard box 20 having the coupling holes 21 and 22 formed on both sides and the bottom is fixed to the formwork, and the spring case 30 is attached to the coupling holes 21 and 22. After coupling, placing and curing concrete to embed the electrical switchboard box 20 and the spring case 30 in the concrete, the spring 50 to the spring case 30 through each coupling hole (21) (22) The electrical switchboard 40, which is smaller than the electrical switchboard box 20, is positioned in the electrical switchboard box 20, and the side and bottom of the electrical switchboard 40 corresponding to each coupling hole 21,22. Coupling and fixing the damper 60 to be connected to the spring 50 to the part. Such a construction method absorbs the vibrations / shocks of the electrical switchboard 40 by vibrations or shocks, thereby making it possible to maintain a stable connection state of the electrical connection terminals in the electrical switchboard for a long time.

Description

Construction method of switchboard {A construction method of Switch Board}

1 is a schematic front view of a conventional electric switchboard;

Figure 2 is a perspective view showing an electrical switchboard box and a spring case used in the construction method of the present invention,

3 is a schematic view showing an electric switchboard constructed by the present invention construction method,

4 is an enlarged view illustrating main parts of FIG. 3.

<Description of the symbols for the main parts of the drawings>

20 ... Electric switchboard box 30 ... Spring case

40 ... electric switchboard 50 ... spring

60 ... damper

The present invention relates to a construction method of an electric switchboard, and in particular, the electric power to attenuate shock and vibration to prevent the connection state of the power cable connected to the electric switchboard from loosening or loosening due to vibration or shock of a building. It is about construction method of switchboard.

Switch boards are equipment installed in facilities such as power plants, substations, and large buildings with electrical facilities, and facilitate the opening and closing of converters and controlling devices.

In general, as shown in FIG. 1, various breakers and relays such as a main wiring breaker 11, a wiring breaker 12, an earth leakage breaker, and the like are connected to the base panel 10 from the lead line 13. Circuit breaker and relay are electrically connected.

The electric switchboard is capable of distributing power supplied from the outside to a plurality of lower devices connected thereto and simultaneously opening and closing the power supply.

In this way, the electrical switchboard electrically connected to distribute the external power is released for a long time as the vibration or shock of the building continues.

Therefore, the person in charge of the electrical room of the building checks the connection terminal at regular intervals to prevent the poor contact of the terminal in advance and to use the safe electricity.

In general, the walls of the building is designed to have a thermal insulation function and a soundproof dustproof function as well as the basic function of partitioning the indoor and outdoor.

However, in the past, since the interior materials are put into the entire wall for soundproof dustproofing, not only the wall is structurally degraded, but also the construction cost is increased. Such a soundproof soundproof structure of the whole building is not protected from local vibration and shocks in which the electric switchboard is installed. Lack.

The present invention was created in view of the above problems, so that even if the vibration or shock of a building lasts for a long time, the tightening state of the electrical connection terminal can be stably maintained for a long time, so that the inspection period of the electric inspector can be extended. The purpose is to provide a construction method of an electric switchboard.

The present invention to achieve the above object of the electrical switchgear to install the electrical switchboard connected to the various circuit breakers and relays, such as the main wiring breaker, the wiring breaker from the lead wire, and each breaker and the relay is electrically connected to the concrete wall of the building In the construction method,

The electrical switchboard box having the front part open and the coupling hole formed at the side and the bottom is fixed to the formwork, the spring case is coupled to the coupling hole, the concrete is poured and cured, and the electrical switchboard box and the spring case are embedded in the concrete. after,

Coupling a spring to the spring case through each of the coupling holes, and placed in the electrical switchboard box relatively smaller than the electrical switchboard box,

The damper is coupled and fixed to the side and bottom surface of the electrical switchboard corresponding to the coupling hole to be connected to the spring,

The damper is a damper case fixed to the electrical switchboard, the oil accommodated in the damper case, a piston which is slidably moved in the damper case and formed with a hole through which the oil passes, and one end is connected to the piston and the other end is in contact with the spring. It is characterized by comprising a piston rod.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The construction method of the present invention, the electrical switchboard 40 to minimize the loosening of the electrical connection terminal from the vibration or impact of the building to allow the electrician to extend the inspection period, so that the tightening state of the electrical connection terminal can be stably maintained for a long time. .

The electrical switchboard 40 applied to the construction method of the present invention is connected to various circuit breakers and relays such as the main circuit breaker and the circuit breaker from the lead wire as usual, and each circuit breaker and the relay are electrically connected.

2 to 4, the construction method of the present invention is fixed to the formwork (not shown) the electrical switchboard box 20, the front portion is opened and the coupling holes 21, 22 formed on both sides and the bottom surface, The spring case 30 is coupled to the coupling holes 21 and 22, and the concrete is poured and cured to embed the electric switchboard box 20 and the spring case 30 in concrete.

Subsequently, the spring 50 is coupled to the spring case 30 through the coupling holes 21 and 22, and the electrical switchboard box 20 is smaller than the electrical switchboard box 20. Within the

The damper 60 is coupled and fixed to the side and bottom surfaces of the electrical switchboard 40 corresponding to the coupling holes 21 and 22 to be connected to the spring 50. At this time, the damper 60, as shown in Figure 4, to form a hole in the side and bottom of the electrical switchboard 40 is coupled to the inside.

The damper 60 is a damper case 61 is fixed to the electrical switchboard 40, the oil 70 accommodated in the damper case 61, and the damper case 61 is slidably moved to the oil 70 A piston 62 having a hole 62a formed therethrough, and a piston rod 63 having one end connected to the piston 62 and the other end contacting the spring 50.

The construction method as described above facilitates the installation of the spring 50 and the damper 60 between the electrical switchboard 40 and the electrical switchboard box 20, and buffers the spring 50 during vibration or impact around the electrical switchboard. The vibration of the electric switchboard 40 is absorbed by damping of the spring 50 itself by the movement of the piston 62.

For example, referring to FIG. 4, when the shock or vibration is in the left direction, the spring 50 is compressed by the piston rod 63 of the damper 60, and at the same time the piston 62 is in the damper case 61. Is moved to the right side, the oil 70 is slowly moved to the left space of the piston 62 through the small hole (62a) to absorb the vibration and shock. Such a series of operations are constructed to operate finely according to the rigidity of the spring 50 to be employed, the size of the hole 62a, and the viscosity of the oil 70.

Needless to say, the present invention as described above can be implemented by many modifications without being limited to the above embodiments without departing from the spirit and scope of the present application.

In the present invention as described above, the electrical switchboard box 20 and the spring case 30 is embedded while constructing the concrete wall, the spring 50 and the damper between the electrical switchboard 40 and the electrical switchboard box 20 By providing 60, the vibration / shock of the electrical switchboard 40 can be absorbed by external vibration or shock, so that the stable connection state of the electrical connection terminals in the electrical switchboard can be maintained for a long time.

In addition, the damper case 61 is filled with oil 70 and the oil is moved through the hole 62a of the piston, thereby damping the vibration of the spring itself, thereby minimizing the vibration of the electrical switchboard due to the spring self-excitation.

Claims (1)

In the construction method of the electrical switchboard, which is installed on the concrete wall of the building, the electrical switchboard, which is connected to the circuit breaker for the main wiring, the circuit breaker and the like, and the various circuit breakers and relays are electrically connected to each other. Fixing the electrical switchboard box 20, the front portion is opened and the coupling holes 21, 22 formed on both sides and the bottom portion in the formwork, the spring case 30 is coupled to the coupling holes 21, 22, After placing and curing concrete to purchase the electrical switchboard box 20 and the spring case 30 in concrete, The spring 50 is coupled to the spring case 30 through the coupling holes 21 and 22, and the electrical switchboard box 20 is smaller than the electrical switchboard box 20. Within the The damper 60 is coupled and fixed to the side and bottom surface of the electrical switchboard 40 corresponding to each of the coupling holes 21 and 22 to be connected to the spring 50. The damper 60 is a damper case 61 fixed to the electrical switchboard 40, the oil 70 accommodated in the damper case 61, and the damper case 61 is slidably moved and the oil 70 passes therethrough. Construction method of the electric switchgear characterized in that it comprises a piston 62 having a hole 62a is formed, and a piston rod 63, one end of which is connected to the piston 62 and the other end of which contacts the spring 50. .

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