INDEPENDENTLY OR SIDE-TO-SIDE

TECHNICAL FIELD

Distribution meter cabinet with ventilation device for mounting on the posts, walls or on the stand to post on the public areas, either independently or side-to-side, belongs to the field of metrology and to devices that measure the consumed energy, and to the structural elements of distribution cabinets, structurally integrated with the connector supports line-in a case, where we have a more structured pairing of more electrical fittings ie. clamps, connectors, junction sites set on the support or in the case, in relation belongs to the structural elements that facilitate cooling, ventilating, more precisely to the modifications to facilitate cooling, ventilating and to circulation systems of distribution cabinets, and belongs to the constructional details of casings, cabinets for electric apparatus dustproof, splash-proof, drip-proof, waterproof, which are watertight, i.e. to housings, their parts or equipment.

Int.Cl ⁸ :

H 02G 3/08 (2011.01); H 02G 3/16 (2011.01); H 01R 9/00 (2011.01); H 01R 13/52 (201 l.oi); H 02B 1/26 (201 l.oi); H 05K 5/02 (2011.01 ); H 02B 1/56 (201 l .oi); H 05 7/20 (2011.01 );

TECHNICAL PROBLEM

Distribution meter cabinet with ventilation device for mounting on the posts, walls or on the stand to post on the public areas, either independently or side-to-side, solves the problem of achieving a typical distribution meter cabinet which will satisfy all customer requirements, while retaining its technical requirements and recommendations complied with the applicable technical regulations and standards for low voltage electrical installations, with the technical recommendations of the EPS (Serbian Electric Power Industry), the methodology on the criteria and method of determining the costs of connection to the power transmission and distribution system, with the current tariff system, and also to meet the requirements related to the safety, security, functionality and economy.

A further problem that has to be solved by the subject invention consists in the fact that the distribution meter cabinet has to be realized as a modular design for one measuring post, so that stacking multiple basic modules in width or height may made a distribution meter cabinet for more consumers.

In the cabinet for one measuring post the measuring space, which houses the measuring device (active energy meter that includes a device for tariff or timer devices without tariff or direct measurement groups, as well as the device management the tariff), must be separated from the connecting space that contains DIN bus, cable fastenings, automatic fuses-limiters, and in that space are introduced the connecting cables of the low voltage power distribution network of supplier, and also connects the user-consumer.

Be achieved and such a distribution meter cabinet that will be designed so as to allow the door opens for the 180° and to be lockable by typical lock of electric distribution company and binding, locked in at least two places, where the subject door should be transparent in its part located opposite the display of a electromechanical meter, respectively to LCD screen of a electronic meters to allow meter reading without opening the cabinet door, but doors should include a special small door that provide consumers access to automatic fuses limiters (circuit breaker), where the door should be provided with a lock with keys different key opening cabinet door which will be held by consumers.

Despite all the above, it should be solved the problem of additional equipment that would allow the mounting the cabinet on post, on the wall, flush mounting in the wall, and also allow the mounting as free-standing cabinet on the base in public areas, where the base will not be molded by concrete, as well as installation of these typical distribution meter cabinet according to our invention in larger groups by linking them in height and/or width to each other on the post, on the wall, flush mounted in the wall, and the similar stacking of more freestanding cabinets mounted on a stands in public areas side-to-side.

The task of the invention was also, the realization of distribution meter cabinet which will be protected against the penetration of water and dust to a high degree of mechanical protection, and it should be possible to made such a distribution meter cabinet , according to the invention, of self-extinguishing insulating material that is resistant to moisture, corrosion, dust, high and low temperatures, which is stable to ultraviolet (UV) rays, acids, impacts, weathering, and which does not require maintenance during the operation, to have structurally done cooling, ventilation in order to achieve temperature stabilization inside the housing of the distribution meter cabinet without the use of special additional devices and systems which manage and control their activation, work and stopping, and beside the all aforesaid, to be suitable for recycling according to the prescribed environmental standards.

BACKGROUND ART

As in literature, so in patent documentation can be found a number of different solutions that solve the above-defined problems and which are adapted to the requirements of the power distribution industries of individual countries. Practice has shown that it is very important that the subject of the invention be accurately and conveniently implemented to achieve the requirements and also meet the requirements and regulations that exist in certain electric utilities.

Each of the known solution has certain advantages over the prior art and provides a certain quality to the objectives set when working on the development of these solutions, however, none of these known solutions is comparable to the solution of the present invention, which aims to achieve design of such a distribution meter cabinet which will eliminate certain deficiencies of known solutions, which will also solve the aforesaid technical problems, and also make a relatively simple, efficient structure suitable for the bulk production and installation in accordance with the requirements of electric distribution companies.

DISCLOSURE OF THE INVENTION

All the above-mentioned requirements and recommendations have been implemented during the realization of this type distribution meter cabinet which may be realized as distribution meter cabinet for one measurement unit or as a distribution meter cabinet for two measuring units, where the details of the realized distribution meter cabinet will be visible on the particular figures of the attached drawings, which will display the new look of distribution meter cabinet with ventilation device for mounting on the posts, walls or on the stand to post on the public areas, either independently or side-to-side, which is the subject of this invention, and where :

Fig. 1 shows the front view to the axonometric appearance of distribution meter cabinet;

Fig. 2 shows the axonometric appearance of distribution meter cabinet with

removed door;

Fig. 3 shows a front view of a distribution meter cabinet with removed door;

Fig. 4 shows the view from the right side of the a distribution meter cabinet;

Fig. 5 shows the rear view of the control-measuring cabinet;

Fig. 6 shows the bottom view of the control-measuring box;

Fig. 7 shows the axonometric layout of internal structure inside the cabinet in the view from the left lateral side to the lower part of the cabinet; Fig. 8 shows the axonometric layout of internal structure inside the cabinet in the view from the right lateral side to the lower part of the cabinet;; Fig. 9 shows an magnified axonometric view to a detail A in Figure 8:

Fig. 10 shows the magnified appearance of panels in Figure 8 where better may be seen the openings for the access to the automatic fuses (limiters);

Fig. 11 shows the axonometric rear view to the cabinet with typical equipment used for mounting the cabinet on the post;

Fig. 12 shows the axonometric rear view of the cabinet with typical equipment used for mounting the cabinet on the wall;

Fig. 13 shows the axonometric front view to the freely standing cabinet with an typical stand of insulating material for posting without concreting;

Fig. 14 shows the axonometric appearance of the coupling of upper rear quarter of typical stand with lower front quarter of the typical stand for the setting the cabinets on public areas.

Fig. 15 shows the view from behind to the upper rear quarter of typical stands with opening cover in the closed position;

Fig. 16 shows the view of section A-A of the upper last quarter of typical stand with opening cover in the closed position with indication to detail B;

Fig. 17 shows the magnified detail B from Fig. 16 which shows the engagement of elastic tooth of the cover with the formed top edge of the opening formed on the stand element

Fig. 18 shows the combination of four distribution meter cabinets casings-i.e. 2 in height and 2 in width;

Fig. 19 shows the axonometric rear view to the coupled cabinets from the Fig. 9 with typical accessories for mounting on post where connecting rod which is positioned in the middle is of the new design;

Fig. 20 shows the axonometric view on the rear of a series of a four connected freestanding cabinets with typical stands of-insulating material for placing without concreting in public areas;

Fig. 21 shows the front view of a distribution meter cabinet with removed door; Fig. 22 shows the appearance of the cover of the ventilation duct;

Fig. 23 shows the view to the axonometric front appearance of the distribution meter cabinet with indicated section A-A of the housing containing the ventilation opening;

Fig. 24 shows the magnified axonometric view to the section A-A of Fig. 23 where is shown the section of ventilation duct with set cover;

Fig. 25 shows a different view to the magnified axonometric view to the section

A-A of Fig. 23 showing the section of ventilation duct with set cover;

Fig. 26 shows the lower part of the distribution meter cabinet with removed door where is indicated the place of the lower ventilation duct, in which a cross-

-section B-B of that part of the housings is indicated.

Fig. 27 shows the magnified view of the cross section B-B from Fig. 26

Realized solution achieved by this invention of typical distribution meter cabinet will be described as module for two consumers, like the general case, because if we use the distribution meter cabinet as measuring point for one consumer only, simply into the measuring space of the cabinet is set only one measuring device, and in the connecting space connections for a single consumer are made. For more consumers, typical distribution meter devices can be placed either as modules side by side or basic internal structures for the two consumers can be mounted into the housings of double or triple dimensions.

Fig. 1 shows the axonometric appearance of distribution meter cabinet 1 in the front view on which housing 2 we see the lock, locked at three points 31, 32 and 33, which lock 3 is placed along the whole length of one side of the door 4 of the cabinet, whereas locked up with key of the Electric Power Company of Serbia. On the opposite side of the door 4 hinges 5 secure the door 4 in three points, while in the middle of the door 4 is a pocket 6 for placing logo of the Electric Power Company. On the door 4 of the cabinet 1 are placed two lids 7 with locks 8 having the key 81 (where each key 81 is for one consumer), and which locks 8, when the key 81 is removed, are closed with tight elastic stopper 9 which is by an elastic band connected to lock 8. By opening the lid 7 customer may access to the limiters 21 (automatic fuses) and in the case of interruption, i.e. power supply interruption, by simply lifting the lever of the limiter 21 back to the previous position and so re-establish supplying the consumers with electricity. At the bottom side of the distribution meter cabinet are cable inlets 10 for the incoming cable and outlets 11 to exit the incoming cable to other customers, or to exit the cable to the consumer. On the upper side of the distribution meter cabinet is placed a roof 12 with the corresponding slopes for the confluence, at least flowing to one (or two) side, protection from atmospherics.

Figure 2 shows axonometric view of distribution meter cabinet 1 with removed door 4 so that in the channel in which is effected locking at three points 31, 32 and 33, may be notified the ventilation relatively cooling device which is realized as two (or more) specially designed inlet openings 310 for cold air entry and exit openings 330 through which warm air is flowing out from housing 2 interior of the distribution meter cabinet 1. Also it may be seen that the front opening is surrounded with frame having raised edge 13 which increases the height of frame walls, and which edge throughout all its length has a groove 131 with an elastic material achieving a hermetic sealing of front side opening and thereby preventing the entry of water, moisture or dust into the distribution meter cabinet. In the upper half (measuring space) of the distribution meter cabinet 1 is a base plate 14 for the measuring device with three parallel vertical slots 15 arranged staggered, and in its lower part of star-like slot 16 with a series of different openings 19 below its horizontal slot through which the cables of measuring devices are dragged. The slots 15 and 16 enable accurate positioning of measuring devices (not shown) against the transparent part of the door in order to ensure their smooth reading. Along the lateral vertical sides base plate 14 has a series of openings 17.

Partition 18 divides the upper part of the lower connecting space of the distribution meter cabinet 1, where the subject partition 18 has, at the side against to measuring space, a series of parallel horizontal grooves which allow adjustable in depth positioning of the base plate 14 to allow installation of all types of measuring instruments close to the cabinet transparent door to allow better reading of the electromechanical meter display or electronic meter LCD display. On the opposite side of the cabinets, in the corners are set supports 181 with notches 180 which are aligned with grooves height of partition 18 and when the base plate 14 is with one of its side i inserted into the corresponding groove on the wall of the partition 18 it should be slowly inclined downwards until it fit into the corresponding notch 180 of support 181 (named as ladders) placed in corners of measure space of the cabinet where, using seal plates 190 pierced on the post^ vith a hole on the base plate 14, the same is fastened and sealed by two seals at points 141 in the corners. Since the connecting cables of the metering device are drugged through openings 19 on the base plate 14, these are settled in the space below the base plate 14, so in the space below the base plate 14 may be entered only if the seal, by which the base plate 14 is fixed in its depth selected position,, is taken off.

The board 100 which closes the front of the connecting space of the cabinet have openings 20 through which consumers can approach the limiters 21 (automatic fuses). On board 100 are fixed the transparent cover plates 201, by which the Power Company may, in the case of non-payment of power consumption, to disengage the limiters 21 (automatic fuses), and to deny consumers access to the limiters 21, covering the opening 20, one or both, by cover plate 201, and since the consumer is not able to remove these plates (as they are blocked by the locked door 4) so, only after settling the debt, the Power Company will enable electricity supply reconnecting the limiters 21 (automatic fuses), and returning the cover plates 201 in their places on the board 100.

Figure 3 shows a front view of a distribution meter cabinet with removed door 4, and corresponds to Figure 2, except that here may be better seen the both points 141 used for sealing the base plate 14, and the both points 101, used for the sealing the board 100, which restricts access to the space in which through the inlets 10, and outlets 11 are dragged the power cables to the consumer. In the connection space, the cables are by the semi-circular clamps 600 fastened by screws 610 to mount fastened to the bottom of the cabinet 1, as well are stored the connections of the limiters 21 (automatic fuses) and of the meters (not shown).

Figure 4 shows the view from the right side to distribution meter cabinet 1 where it may be seen that the surface 300 of the door 4 is lowered in relation to the reinforced mount of hinge 5, and also may be seen the carrier plate 400 on the rear of the cabinet.

Figure 5 shows a view to the rear of the distribution meter cabinet 1, with mount carrier plate 400, while the Figure 6 shows bottom view of the distribution meter cabinet with a convex surface of the door 4 clearly showing the positions of the lock 3, and locks 8 with keys 81.

Figure 7 shows the axonometric appearance of a cabinet 1 inside structure in view from the left lateral side to the lower side of the cabinet 1 i.e. in the direction to the inlets 10 and to the outlets 11, and Figure 8 shows the axonometric appearance of the cabinets 1 inside structure in view from the right lateral side to the lower side of the cabinet 1. On these figures is a better view to the position of support 181 with notches 180 (the ladder) that are by height aligned with grooves of partition 18 and when the base plate 14 is inserted, first by one of its side in the corresponding groove of the partition 18, and than is slowly rotated down until it clicks in the corresponding notches 180 of the support 181 which are located in the corners of the measuring space of a cabinet 1 and where by the seal plates 190, pierced on the posts with a hole on the base plate 14, the same is fastened and sealed by two seals at points 141 in the corners.

On figures 7 and 8 are visible the position of DIN buses 500 mounted on the bottom of a cabinet 1 or on the height determined by spacers 505, as well as the positions of semi-circular terminals 600 in which the cables, passed through inlets 10, and outlets 11, are fastened by screws 610 to mounts fixed to the bottom of the cabinet 1.

Figure 9 shows a magnified axonometric view of detail A from Figure 8 where is visible the position of support 181 with notches 180 which are aligned by the height with grooves on the partition 18, and when the base plate 14 is inserted into the notch 180 of the support 181 (the ladder), placed in the corners 141 of the measuring space within the cabinet 1, is set up shaped plate 190 for sealing, which is pierced on the pole 145 with an opening 146 on the base plate 14 so that pulling through the wire of the seal, sealing of the base plate 14 can be done at two points 141 in the corners of the measuring space within cabinet 1.

Figure 10 shows the magnified appearance of an part of the board shown in Fig. 8 where is a better view to the openings 20 through which consumers may approach to limiters 21 (automatic circuit breakers). On the board 100 are fixed the plates 201 by which the Power company may, in the case of non-paid power consumption, to turn-off the limiters 21 (automatic circuit breakers), and to deny to consumers the access to the limiters 21 simply covering the openings 20 by the cover plate 201. Figure 10 is showing a case where an opening 20 is covered by plate 201, and since the consumer is not itself able to remove the plate 201 (as they are blocked by the locked door 4) only after settlement of the debt, the Power company rid of its power supply connector by switching on the limiter 21 (automatic circuit breaker) by removing plate 201 and return it to its place on the board 100. Figure 10 shows better view and more details of layout and position of the star-like slot 16, openings 17 and a series of openings 19 below the star-like slot 16 on the base plate 14.

Figure 11 shows the axonometric view to the rear of the cabinet 1 with a typical additional equipment for installation on the existing or new pole of power distribution network, which consists of two horizontal beams 700 positioned at the top and bottom of the rear of a cabinet 1, where these horizontal beams 700 with shaped projections 702 and concave curvature 705, by which the distribution meter cabinet 1 rely on the pole on which a cabinet 1 is mounted and tightened around by the universal clamp for mounting on electric distribution poles of various diameters (not shown).

Figure 12 shows the axonometric view to the rear of the cabinet 1 with a typical accessories for mounting to the wall, which consists of two horizontal beams 800 having on one side at the ends flat arched projections 805 with openings in the middle. These beams are consolidated on the cabinets 1 rear so that on the upper beam these projections are placed on the upper side of the beam 800, while on the bottom beam 800 that is fitted to the lower edge of a cabinet 1 these projections 805 are protruded downwards.

Figure 13 shows the axonometric front view to the freely standing cabinet 1 with an typical stand 900 of insulating material for posting without concreting on the free surfaces (green areas, paved areas and other). Stand for mounting of a cabinet is composed by merging of four identical cylindrical surfaces 950 forming a hollow cylindrical prismatic body i.e. the stand 900 which is vertically buried into the ground without concreting , and where on its top surface is placed a distribution meter cabinet 1. The stand 900 is provided with door 910 which closes the square inspection access opening 920. The door 910 must be opened, that the fitter may through them approach to the bottom of the cabinet 1 with inlets 10, and outlets 11. The door 910 can be opened only when usually locked cabinet 1 door 4 are open, because only in this case it can be approached, by screwdriver or other similar tool, vertically from above, to the elastic tooth 930 on the door 910. When the screwdriver or other similar tool release the elastic tooth 930 from engagement with a part of the element 950, door 910 will slide downwards and so enable the door 910 to be pulled through the opening 920 and thus allow free access to the interior of the stand 900 for assembling or disassembling the cables for a cabinet 1.

Figure 14 shows the axonometric appearance of the upper rear quarter 950 of typical stand 900 coupled with lower front quarter 950 of the typical stand 900 for the posting the cabinet 1 on public areas. Considering that the stand 900, as well the housing of the distribution meter cabinet 1 is made of a self-extinguishing insulating material (polycarbonate, polyester reinforced with glass fibers and the like.) which is resistant to moisture, corrosion, dust, high and low temperatures, which is stable to the ultraviolet (UV) rays, acids, impact, weathering, and which does not require maintenance during the operation, and which is suitable for recycling according to the prescribed environmental standards, so the all major areas are reinforced by suitably positioned ribs that are visible in this figure like on the other individual drawings and therefore does not need to be particularly marked. In this picture is also visible the way how the elements 950 of the stand 900 are connected by their bottom edge designed so that a part, here referenced by 951, respectively 953 is recessed, while their parts 952, respectively 954 are slightly raised, so that the raised part of one element 950 fits into the recessed part of the second element 950 connected with him and so realize an solid connection.

Figure 15 shows the rear view to the upper rear quarter of element 950 of typical stand 900 with the door 910 of the opening 920 in the closed position, on which figure is marked a cross-section AA, the appearance of which is shown in Figure 16 on which is marked a detail B which is as magnified detail shown in Figure 17 where is exposed the engagement of the elastic tooth 930 of the door 910 with the upper shaped edge of the opening 920 of the element 950 of stand 900.

Figure 18 shows the combination of the four housings 2 of the distribution meter cabinets 1 i.e. two in height and two in width, in the view from the front, where the cabinets 1 are interconnected by specially designed clamps (not shown) by their lateral sides at the locations G, i.e. at the upper half of the lateral side and at locations D on the lower half of the lateral sides, while at the rear as is seen in Figure 19 are connected by horizontal beams 700 positioned at the top and bottom of the rear of the connected, cabinet 1 where these horizontal beams 700 with shaped projections 702 and concave curvature 705, by which the connected distribution meter cabinets 1 as a whole rely on the pole on which this unit is placed and around which tightened by use of the universal clamp for mounting on electric distribution poles of various diameters (not shown). In the middle part the cabinets 1 are interconnected in the whole by transversal beam 710 constructed to represent the whole made of two horizontal beams 700 whereas the length of the transversal beam 710 depends on the width of a series of two distribution meter cabinet 1 set each to other, which is then as a whole laterally connected together and placed next to each other in a series of two, three, etc. elements.

In Figure 20 is shown the axonometric view on the rear of a series of a four connected freestanding cabinets on a typical stand 900 made of insulating material for placing without concreting on the free public spaces (green areas, paved areas and elsewhere). On the stand 900 is door 910 provided which closes the square inspection access opening 920.

In Figure 21 is showing the front view of a distribution meter cabinet 1 with removed door 4 where is observed the raised edge 13 of the frame that surround opening on the front and increases the height of the walls, and that edge 13 throughout its length has a groove 131 on the top with an elastic material that achieves hermetical sealing of the front side and thus prevents water, moisture or dust into the distribution meter cabinet. Housing 2 of this distribution meter cabinet 1, on the front side under the cabinet door, in the channel in which is locking at three points 31, 32 and 33 effected, has realized an assembly for ventilation, respectively cooling and preventing retention of moisture inside the cabinet, where the structure is realized as two or more specially shaped passages 310, 330 for air flow as shown in Figures 24 and 25 Figure 23 shows the axonometric appearance of distribution meter cabinet from the front, with marked section AA of the housing 2 where is positioned the observed opening for ventilation.

At the bottom of the housing is placed the inlet 310 through which the air enters which is then heated under the influence of elements embedded inside the housing, warms and tends to flow upwards where passes through the outlet 330. To achieve the requirements which enable the cooling while simultaneously retain the water vapor and dust, inlet 310 and outlet 330 are, according to the invention, designed as a labyrinth, as shown in Figure 24 which shows the magnified axonometric view of section A-A appearance from Figure 23, relatively Figure 25, showing a different view of the magnified appearance axonometric view of section A-A in Figure 23, and on which figures 24 and 25 may be seen the sections of channels for ventilation with positioned cover, and where:

- An inlet 310 is realized into surface 311 so that is integrally made a concave bearing, structured in the form of an inverted letter E, and where the bottom 312 of the bearing by its vertical wall 313 associated with the surface 311 of the cabinets housing, while the lower horizontal bottom plate 312 is structured as perpendicularly upward, transversal partition plates 314 and 315 of lower height, while on the other side of the inlet 310 is downwardly structured a perpendicularly positioned partition plate 316 whose upper part contains reinforcement 317 of rectangular cross section.

- into the concave bearing a cover (shown in Figure 22) is set, which includes a body 340 of cover, which was realized as shaped carrier profile in which the rear shorter side 341 has on its inside in the middle placed holder 342 rounded on its bottom, while on its top is the supporting surface 343. The rear shorter side 341 by its rounding 344 pass to approximately twice as long, upper surface 345 which is at its end 346 also rounded and which on its lower side, in the middle, has integrally perpendicularly made protrusion 347 with a lower surface 349 which is made so that on the bottom has symmetric admission ports 348 of a rectangular cross section., where protrusion 347 has in its center perpendicularly to it, outwardly, integrally made holder 350 which is at its bottom curved in form of an arc 351, while its upper end is protruding as toothed support 352 which on its bottom surface has effected supporting surface 353, where toothed support 352 on its upper side has a semicircular groove 354.

When the cover body 340 is placed in concave bearing inlet 310 then supporting surface 343 fit on upper surface of partition plate 314, while the other supporting surface 353 fit on the upper surface of partition plate 315, while the rounded holder 342 and a common lower surface 349 of the protrusion 347 and of holder 350 with its arc 351 rely on the lower horizontal bottom plate 312 where under the cover body 340 over the partition plates 314 and 315 of lower height is inserted micro fiber filter.

Observing Figures 24 and 25 and enlarged view of section B-B of inlet 310 shown on Figure 26 here may be seen a labyrinth formed passage through which the air Vu enters through inlet 310 into housing of distribution meter cabinet so that flow between the vertical wall 313 and rear shorter side 341 of the cover 340 where is divided into the two streams that pass the left and right of the holder 342 moving up and then passing over the upper side of the partition plate 314 flows downwards passing through the passage made of admission ports 348 still moving up and crossing the upper side of the partition plate 315, pass by the reinforcement 317 and flowing downwards over perpendicular partition plate 316 air Vi leaves the inlet 310 and enters into the housing of distribution meter cabinet where it is mixed with heated air inside the distribution meter cabinet, and is heated itself also and flows upward. Since the same arrangement of the protective ventilation duct is placed on the top side of the housing but only of the opposite orientation, we get the outlet 330 located on the top side distribution meter cabinets, so heated air from inside the housing passes through the labyrinth passage of outlet 330 and exits into the atmosphere.

In order to simplify description and to facilitate understanding of the system for ventilation and protection from the passage of moisture and dust, and in order to simplify the drawings those are not described in detail because these are identical elements that are only at the installation symmetrically i.e. oppositely arranged and oriented.

New solution can be realized and implemented in various forms and should not be limited to the examples as shown and described in detail, with reference to the attached figures of the drawings, which are given in order to achieve clarity of description of subject technical and design solutions according to this invention.

Different layout of the same functional equivalents i.e. their placing in another place, as well as replacement of any of these structures of distribution meter cabinets by some other arrangement represents only their functional equivalent and is included into general authors idea and represents only a variant solution distribution meter cabinet shown here with its detailed description and accompanying drawings.