Installation method of strong and weak current boxes in same vertical direction of limited space wall surface

Abstract

The application discloses a kind of installation methods of strong and weak electric box of same vertical direction of limited space wall surface, comprising: reserving the installation hole of pipeline collection device, weak electric conversion box and strong electric box on the wall surface of entrance hall;Pipeline collection device, weak electric conversion box and strong electric box are installed on the reserved installation hole;Grooving is carried out on indoor wall surface and floor, and strong electric line pipe and weak electric line pipe are laid;Strong electric line pipe and weak electric line pipe are connected to the corresponding inlet of pipeline collection device, weak electric conversion box and strong electric box;Strong electric cable is passed into the strong electric layer inside weak electric conversion box from the strong electric slot of pipeline collection device;Weak electric cable is passed into weak electric conversion box from the weak electric slot of pipeline collection device;After the butt joint elbow pipe at the top of weak electric conversion box is passed through, the strong electric cable in strong electric layer is connected to the control switch of strong electric box through outlet pipe and strong electric line pipe;Net is hung in reserved hole, and cement mortar is backfilled, to complete the installation of strong and weak electric box of same vertical direction of limited space wall surface.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electrical box installation, and more particularly relates to a method for installing strong and weak electrical boxes in the same vertical direction on a limited space wall. BACKGROUND

[0002] Strong and weak electrical boxes are usually installed separately, and the electromagnetic field of strong electricity can interfere with weak electricity. In order to facilitate use, strong and weak electrical boxes are usually installed at the entrance hall. However, due to different functions and habits of electrical boxes, the installation height of the strong electrical box is usually 1.8 m from the lower skin to the ground, and the installation height of the weak electrical box is usually 0.3 m from the lower skin to the ground. Indoor pipes are usually laid in a slot along the floor and wall. Therefore, the vertical installation space of the strong and weak electrical boxes needs to be staggered to avoid the weak electrical box blocking the laying path of the strong electrical box pipe. However, according to the traditional construction method, strong and weak electrical boxes cannot be installed on the same wall in the case of limited space at the entrance hall of a small house. The existing related technology can only place the box on other walls in the room, but the box cover is conspicuous and can affect the overall decoration effect of the room. There is no good solution.

[0003] Therefore, there is an urgent need for a method for installing strong and weak electrical boxes in the same vertical direction on a limited space wall to solve the above-mentioned defects of the prior art. SUMMARY

[0004] In view of the above defects or improvement needs of the prior art, the present application provides a method for installing strong and weak electrical boxes in the same vertical direction on a limited space wall. The method comprises arranging a pipeline collection device, a weak electrical conversion box and a strong electrical box in the same vertical direction on the limited space wall from bottom to top. A partition and a partition plate are arranged in the pipeline collection device to classify and lay strong and weak electrical pipes, thereby avoiding interference of strong electricity with weak electrical signals. The top openings of the weak electrical cable collection port and the strong electrical cable collection port of the pipeline collection device are arranged to face different directions, the interface channel position is changed, and different laying paths for strong and weak electrical cables are separated. The weak electrical cable collection port and the strong electrical cable collection port at the top of the pipeline collection device are arranged to face different directions, the pipeline laying at the bottom and the side of the pipeline collection device is converted to cable laying, thereby greatly increasing the number of cables laid in the space and overcoming the problem of limited cable laying in the traditional method. A partition plate is arranged in the weak electrical conversion box to separate the strong electrical layer in the weak electrical conversion box, thereby realizing centralized management of strong and weak electrical pipes inside and outside the box. A butt joint elbow pipe is arranged at the top of the strong electrical layer in the weak electrical conversion box to lead the strong electrical cable from the strong electrical layer to the upper outlet pipe of the weak electrical conversion box and connect the strong electrical box, thereby realizing the installation of strong and weak electrical boxes in the same vertical direction on a limited space wall and filling the gap in this field in the traditional construction method.

[0005] In order to achieve the above object, the application provides a mounting method of strong and weak electric boxes in the same vertical direction of a limited space wall surface, comprising the following steps:

[0006] S1: reserving installation openings of a pipeline collection device, a weak electric conversion box and a strong electric box on a wall surface of a house entrance;

[0007] S2: installing the pipeline collection device, the weak electric conversion box and the strong electric box on the reserved installation openings;

[0008] S3: slotting and laying strong and weak electric line pipes below the pipeline collection device on the indoor wall surface and the floor, and slotting and laying a strong electric line pipe between the weak electric conversion box and the strong electric box;

[0009] S4: connecting the strong and weak electric line pipes to corresponding inlets of the pipeline collection device, the weak electric conversion box and the strong electric box;

[0010] S5: opening a panel of the pipeline collection device, and passing a strong electric cable from a strong electric slot of the pipeline collection device into a strong electric layer inside the weak electric conversion box through a strong electric cable collection opening on the top of the pipeline collection device; passing a weak electric cable from a weak electric slot of the pipeline collection device into the weak electric conversion box through a weak electric cable collection opening on the top of the pipeline collection device;

[0011] S6: sequentially opening an outer cover plate and an inner partition plate of the weak electric conversion box, and connecting the strong electric cable in the strong electric layer to a control switch of the strong electric box through an outlet pipe and the strong electric line pipe after passing through a butt joint pipe on the top of the weak electric conversion box;

[0012] S7: closing the inner partition plate and the outer cover plate of the weak electric conversion box, hanging a net in the reserved opening and backfilling cement mortar, and completing the installation of the strong and weak electric boxes in the same vertical direction of the limited space wall surface.

[0013] Further, the pipeline collection device, the weak electric conversion box and the strong electric box are arranged from bottom to top in step S1.

[0014] Further, the pipeline collection device is provided with an openable and closable panel;

[0015] The inside of the pipeline collection device is formed by a weak electric slot and a strong electric slot arranged on the left and right through a partition plate;

[0016] The bottom and the side surface of the pipeline collection device are uniformly and spacedly provided with a plurality of strong electric line pipe connection openings connected with the weak electric slot and a plurality of weak electric line pipe inlets connected with the strong electric slot.

[0017] Further, the weak electric line pipe inlets are located at the bottom and the left side surface of the weak electric slot, and the strong electric line pipe connection openings are located at the bottom and the right side surface of the strong electric slot.

[0018] Further, the top of the pipeline collection device is provided with a weak current cable collection port communicated with the weak current slot and a strong current cable collection port communicated with the strong current slot; the top openings of the weak current cable collection port and the strong current cable collection port are directed to different directions;

[0019] Through the weak current cable collection port and the strong current cable collection port, the pipeline collection device bottom and side line pipe laying is converted into cable laying.

[0020] Further, a plurality of strong current line pipes are arranged between the strong current box and the weak current conversion box.

[0021] Further, the weak current cable collection port and the strong current cable collection port communicated with the strong current slot are respectively communicated with the bottom of the weak current conversion box.

[0022] Further, the outer surface of the weak current conversion box is provided with an outer cover plate and an inner partition plate; the outer cover plate and the inner partition plate are parallel to each other in the closed state.

[0023] The side of the inner partition plate away from the outer cover plate forms a strong current partition layer with the inner wall of the weak current conversion box, for accommodating strong current line pipes.

[0024] Further, the top outer surface of the weak current conversion box is provided with an outlet pipe; the top of the strong current partition layer of the weak current conversion box is provided with a butt joint elbow communicated with the outlet pipe and the strong current partition layer respectively.

[0025] Further, the strong current cable collection port is communicated with the strong current partition layer.

[0026] Overall, compared with the prior art, the above technical scheme of the present application can achieve the following beneficial effects:

[0027] (1) The installation method of the strong and weak electric boxes in the same vertical direction of the limited space wall surface of the application, by setting the slot and the partition plate in the inside of the pipeline collection device, the strong and weak electric wire pipes are classified and laid, avoiding the interference of the strong electric on the weak electric wire pipe signal; by additionally setting the lateral interface on the pipeline collection device, the number of cable connection is increased; by setting the top opening of the weak electric cable collection port and the strong electric cable collection port of the pipeline collection device as different directions, the interface channel position is changed, and then the different laying paths of the strong and weak electric wire pipes are separated; by setting the weak electric conversion box above the pipeline collection device, the partition plate is arranged in the weak electric conversion box, the weak electric conversion box is separated into the strong electric layer, realizing the centralized management of the strong and weak electric wire pipes in the inner and outer layers of the box, the built-in partition layer also has the function of the strong electric wire pipe passing line box, facilitating the subsequent manual cable threading; the butt joint elbow pipe is arranged on the top of the strong electric layer in the weak electric conversion box, the strong electric cable is led out from the strong electric layer to the wire pipe on the upper part of the weak electric conversion box and connected to the strong electric box, realizing the installation of the strong and weak electric boxes in the same vertical direction of the limited space wall surface, the whole is beautiful, and the blank in this field under the traditional construction mode can be filled.

[0028] (2) The installation method of the strong and weak electric boxes in the same vertical direction of the limited space wall surface of the application, by setting the weak electric cable collection port and the strong electric cable collection port with inconsistent opening directions on the top of the pipeline collection device, the wire pipe laying at the bottom and the side of the pipeline collection device is converted into cable laying, greatly improving the number of cables laid in the same space, overcoming the problem that the number of cables laid is limited due to limited space under the traditional mode. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a flowchart of the installation method of the strong and weak electric boxes in the same vertical direction of the limited space wall surface of the embodiment of the application;

[0030] Figure 2 It is a layout schematic diagram of the pipeline collection device, the weak electric conversion box and the strong electric box of the installation method of the strong and weak electric boxes in the same vertical direction of the limited space wall surface of the embodiment of the application;

[0031] Figure 3 It is a structural schematic diagram of the pipeline collection device of the installation method of the strong and weak electric boxes in the same vertical direction of the limited space wall surface of the embodiment of the application;

[0032] Figure 4 It is an internal structure schematic diagram of the pipeline collection device of the installation method of the strong and weak electric boxes in the same vertical direction of the limited space wall surface of the embodiment of the application;

[0033] Figure 5 It is an internal structure schematic diagram of the weak electric conversion box of the installation method of the strong and weak electric boxes in the same vertical direction of the limited space wall surface of the embodiment of the application;

[0034] Figure 6It is the internal section view structure schematic diagram of the weak current conversion box of the installation method of the strong and weak current boxes in the same vertical direction of the limited space wall surface of the embodiment of the present application;

[0035] Figure 7 It is the arrangement schematic diagram of the internal strong current cable of the weak current conversion box of the installation method of the strong and weak current boxes in the same vertical direction of the limited space wall surface of the embodiment of the present application;

[0036] Figure 8 It is the structure schematic diagram of the installation method of the strong and weak current boxes in the same vertical direction of the limited space wall surface of the embodiment of the present application after construction.

[0037] In all the drawings, same reference signs represent same technical features, specifically: 1-pipeline collection device, 101-panel, 102-weak current pipe inlet, 103-strong current pipe inlet, 104-strong current cable, 11-weak current groove, 12-strong current groove, 13-weak current pipe, 14-strong current pipe, 15-weak current cable collection port, 16-strong current cable collection port, 2-weak current conversion box, 21-outer cover plate, 22-inner partition plate, 23-strong current partition layer, 24-butting elbow, 3-strong current box, 4-weak current box. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0039] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, when an element is referred to as "fixed to", "provided with" or "provided in" another element, it can be directly on another element or indirectly on another element. When an element is referred to as "connected to" another element, it can be directly connected to another element or indirectly connected to another element; the terms "mounting", "connection", "connection", "provided with" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] As shown in Figures 1-8 The present application provides an installation method of strong and weak current boxes in the same vertical direction of the limited space wall surface, comprising the following steps:

[0041] S1:Reserve installation holes for the pipeline collection device, the weak current conversion box and the strong current box on the wall surface of the entrance hall from bottom to top;

[0042] S2:Install the pipeline collection device, the weak current conversion box and the strong current box in the reserved installation holes;

[0043] S3:Groove and lay the strong current pipe and the weak current pipe below the pipeline collection device on the indoor wall surface and the floor, groove and lay the strong current pipe between the weak current conversion box and the strong current box;

[0044] S4:Connect the strong current pipe and the weak current pipe to the corresponding inlets of the pipeline collection device, the weak current conversion box and the strong current box; specifically, connect the strong current pipe below the pipeline collection device to the strong current pipe inlet of the pipeline collection device, and connect the weak current pipe to the weak current pipe inlet of the pipeline collection device; connect one end of the strong current pipe between the weak current conversion box and the strong current box to the outlet pipe of the weak current conversion box, and connect the other end to the wire pipe inlet of the strong current box;

[0045] S5:Open the panel of the pipeline collection device, and pass the strong current cable from the strong current slot of the pipeline collection device into the strong current layer inside the weak current conversion box through the strong current cable collection port on the top of the pipeline collection device; pass the weak current cable from the weak current slot of the pipeline collection device into the weak current conversion box through the weak current cable collection port on the top of the pipeline collection device; specifically, pass the strong current cable connected to the weak current pipe inlets on the bottom and the left side of the pipeline collection device through the strong current slot of the pipeline collection device, and into the strong current layer inside the weak current conversion box through the strong current cable collection port on the top of the pipeline collection device; pass the weak current cable connected to the weak current pipe inlets on the bottom and the left side of the pipeline collection device through the weak current slot of the pipeline collection device, and into the weak current conversion box through the weak current cable collection port on the top of the pipeline collection device;

[0046] S6:Open the outer cover plate and the inner partition plate of the weak current conversion box in turn, pass the strong current cable in the strong current layer through the butt joint elbow on the top of the weak current conversion box, and then connect it to the control switch of the strong current box through the outlet pipe and the strong current pipe, so as to realize the laying of the strong current cable around the weak current box;

[0047] S7:Close the inner partition plate and the outer cover plate of the weak current conversion box, hang the net in the reserved hole and backfill the cement mortar, so as to avoid cracking in the grooving area in the later period, thus completing the installation of the strong and weak current boxes in the same vertical direction on the limited space wall surface.

[0048] Further, the pipeline gathering device 1, the weak current conversion box 2 and the strong current box 3 in step S1 are arranged from bottom to top in sequence; the pipeline gathering device 1 is a box structure, and a openable and closable panel 101 is arranged on the pipeline gathering device 1; the inside of the pipeline gathering device 1 is divided into a weak current groove 11 and a strong current groove 12 arranged left and right by a partition plate, for classifying and gathering strong and weak current cables; a plurality of weak current pipe connection ports 102 connected with the weak current groove 11 and a plurality of strong current pipe connection ports 103 connected with the strong current groove 12 are uniformly arranged at the bottom and the side of the pipeline gathering device 1; wherein the weak current pipe connection port 102 is located at the bottom and the left side of the weak current groove 11, for connecting a weak current pipe 13; the strong current pipe connection port 103 is located at the bottom and the right side of the strong current groove 12, for connecting a strong current pipe 14 (left and right are the directions shown in the drawing); a weak current cable gathering port 15 connected with the weak current groove 11 and a strong current cable gathering port 16 connected with the strong current groove 12 are arranged at the top of the pipeline gathering device 1; the top openings of the weak current cable gathering port 15 and the strong current cable gathering port 16 are not in the same vertical plane, and are arranged in front and back staggered positions, so as to change the interface channel position and separate different laying paths of the strong and weak current pipes; the weak current cable gathering port 15 is used for gathering a plurality of weak current cables into one outlet; the strong current cable gathering port 16 is used for gathering a plurality of strong current cables into one outlet; by arranging the weak current cable gathering port and the strong current cable gathering port with different opening directions at the top of the pipeline gathering device, the pipeline gathering device converts the pipe laying at the bottom and the side into cable laying, greatly improves the number of cables laid in the same space, and overcomes the problem that the number of cables laid is limited due to limited space in the traditional way.

[0049] Further, the weak current conversion box 2 is arranged above the pipeline collection device 1; the weak current cable collection port 15 and the strong current cable collection port 16 communicated with the strong current tank 12 are respectively communicated with the bottom of the weak current conversion box 2; the outer surface of the weak current conversion box 2 is provided with an outer cover plate 21, and the inner surface is provided with an inner partition plate 22; the outer cover plate 21 and the inner partition plate 22 are parallel to each other in the closed state; the side of the inner partition plate 22 away from the outer cover plate 21 forms a strong current partition layer 23 with the inner wall of the weak current conversion box 2, used for accommodating the strong current cable 104; the weak current box 4 is arranged between the inner partition plate 22 and the outer cover plate 21; in the process of penetrating the strong current cable 104, the inner partition plate 22 needs to be opened to pass the wire; the top outer surface of the weak current conversion box 2 is provided with a wire outlet pipe; the top of the strong current partition layer 23 of the weak current conversion box 2 is provided with a butt bend pipe 24 communicated with the wire outlet pipe and the strong current partition layer 23 respectively; the butt bend pipe 24 is used for leading the strong current wire pipe 14 out of the weak current conversion box 2; the strong current cable collection port 16 is communicated with the strong current partition layer 23; the strong current box 3 is arranged above the weak current conversion box 2; a plurality of strong current wire pipes 14 are arranged between the strong current box 3 and the weak current conversion box 2; after the strong current cable 104 is led out of the weak current conversion box 2 through the butt bend pipe 24, the strong current cable 104 enters the strong current wire pipe above the weak current conversion box 2 through the wire outlet pipe and is connected to the control switch of the strong current box 3, thereby realizing the indoor strong current line distribution function.

[0050] In step S3, when the strong current wire pipe and the weak current wire pipe are laid on the indoor wall surface and the floor, the metal foil is added at the wire pipe intersection, so that the interference on the weak current signal is reduced.

[0051] The application provides a mounting method of strong and weak current boxes in the same vertical direction of a limited space wall surface, which comprises the following steps: reserving mounting holes of a pipeline collection device, a weak current conversion box and a strong current box on a wall surface of a house entrance; mounting the pipeline collection device, the weak current conversion box and the strong current box on the reserved mounting holes; laying a strong current wire pipe and a weak current wire pipe on the indoor wall surface and the floor below the pipeline collection device, and laying the strong current wire pipe between the weak current conversion box and the strong current box; connecting the strong current wire pipe and the weak current wire pipe to corresponding inlet ports of the pipeline collection device, the weak current conversion box and the strong current box; penetrating a strong current cable from a strong current tank of the pipeline collection device into a strong current partition layer in the weak current conversion box through a strong current cable collection port; penetrating a weak current cable from a weak current tank of the pipeline collection device into the weak current conversion box through a weak current cable collection port on the top of the pipeline collection device; sequentially opening an outer cover plate and an inner partition plate of the weak current conversion box, and connecting the strong current cable in the strong current partition layer to a control switch of the strong current box through a butt bend pipe on the top of the weak current conversion box, a wire outlet pipe and the strong current wire pipe; closing the outer cover plate of the weak current conversion box, hanging a mesh on the reserved hole and backfilling cement mortar, thereby completing the mounting of the strong and weak current boxes in the same vertical direction of the limited space wall surface, and filling the blank in this field under the traditional construction mode.

[0052] It is to be understood that the above description is intended to be illustrative and not restrictive. Many other embodiments will be apparent to those of skill in the art upon reading the above description. The scope of the application should therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with their full scope of equivalents. The disclosure of all articles and references referred to herein are incorporated by reference in their entirety.

Claims

1. A method for installing electrical boxes with high and low voltage in the same vertical direction on a wall in a confined space, characterized in that: It comprises the following steps: S1: Reserving installation holes of pipeline collection device, weak current conversion box and strong current box on the wall surface of the entrance hall; the pipeline collection device (1) is provided with an openable panel (101); The inside of the pipeline collection device (1) is formed by a partition plate into a weak current groove (11) and a strong current groove (12) arranged left and right; the top of the pipeline collection device (1) is provided with a weak current cable collection port (15) and a strong current cable collection port (16) with different opening directions; the outer surface of the weak current conversion box (2) is provided with an outer cover plate (21), and the inside is provided with an inner partition plate (22); the side of the inner partition plate (22) away from the outer cover plate (21) forms a strong current partition layer (23) with the inner wall of the weak current conversion box (2); a butt bend (24) is arranged on the top of the strong current partition layer (23) in the weak current conversion box (2), the strong current cable is led out from the strong current partition layer (23) to the outgoing line pipe on the upper part of the weak current conversion box (2) and connected to the strong current box, realizing the installation of strong and weak current boxes in the same vertical direction on the wall surface in a limited space; S2: Installing the pipeline collection device, weak current conversion box and strong current box on the reserved installation holes; S3: Grooving and laying strong current pipe and weak current pipe below the pipeline collection device on the indoor wall surface and floor, and grooving and laying strong current pipe between the weak current conversion box and the strong current box; S4: Connecting the strong current pipe and weak current pipe to the corresponding inlet of the pipeline collection device, weak current conversion box and strong current box; S5: Opening the panel of the pipeline collection device, and passing the strong current cable from the strong current groove of the pipeline collection device into the strong current partition layer in the weak current conversion box through the strong current cable collection port; Passing the weak current cable from the weak current groove of the pipeline collection device into the weak current conversion box through the weak current cable collection port on the top of the pipeline collection device; S6: Opening the outer cover plate and inner partition plate of the weak current conversion box in turn, passing the strong current cable in the strong current partition layer through the butt bend on the top of the weak current conversion box, and then connecting it to the control switch of the strong current box through the outgoing line pipe and strong current pipe; S7: Closing the inner partition plate and outer cover plate of the weak current conversion box, hanging the net and backfilling the cement mortar in the reserved hole, and completing the installation of strong and weak current boxes in the same vertical direction on the wall surface in a limited space.

2. The installation method of the same vertical direction strong and weak electric box of the limited space wall surface according to claim 1, characterized in that: The pipeline collection device (1), weak current conversion box (2) and strong current box (3) are arranged from bottom to top in step S1.

3. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 2, characterized in that: The bottom and side surface of the pipeline collection device (1) are uniformly and spacedly provided with a plurality of strong current pipe connection ports connected with the weak current groove (11) and a plurality of weak current pipe inlet ports connected with the strong current groove (12).

4. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 3, characterized in that: The weak current pipe inlet port (103) is located at the bottom and left side of the weak current groove (11); the strong current pipe connection port (103) is located at the bottom and right side of the strong current groove (12).

5. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 4, characterized in that: The weak current cable collection port (15) is connected with the weak current groove (11); the strong current cable collection port (16) is connected with the strong current groove (12); Through the weak current cable collection port (15) and the strong current cable collection port (16), the pipe laying on the bottom and side surface of the pipeline collection device is converted into cable laying.

6. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 5, characterized in that: A plurality of strong current wire pipes (14) are arranged between the strong current box (3) and the weak current conversion box (2).

7. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 6, characterized in that: The weak current cable collection port (15) and the strong current cable collection port (16) communicated with the strong current tank (12) are respectively communicated with the bottom of the weak current conversion box (2).

8. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 7, characterized in that: The outer cover plate (21) and the inner partition plate (22) are parallel to each other in the closed state.

9. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 8, characterized in that: The top outer surface of the weak current conversion box (2) is provided with a wire outlet pipe; the top of the strong current partition layer (23) on the weak current conversion box (2) is provided with a butt joint elbow pipe (24) communicated with the wire outlet pipe and the strong current partition layer (23) respectively.

10. The installation method of the strong and weak electric box with the same vertical direction of the limited space wall surface according to claim 9, characterized in that: The strong current cable collection port (16) is communicated with the strong current partition layer (23).

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