CLIAMS:1. A distribution box comprising electric components, wherein the distribution box is configured to provide foolproof earthing and further comprises:
a shield configured to provide protection from the electric components of the distribution box;
a door attached to the distribution box; and
an earthing arrangement for the door, wherein the earthing arrangement is configured to allow disassembly of the shield from the distribution box without disturbing the earthing arrangement of the door.
2. The distribution box of claim 1, wherein the earthing arrangement comprises a nut, a ring lug, a washer, and a stud for fixing the earthing arrangement on the door.
3. The distribution box of claim 2, wherein the stud is fixed on the distribution box.
4. The distribution box of claim 1, wherein the earthing arrangement further comprises a screw, a fork lug, and a washer for fixing the earthing arrangement on the distribution box.
5. The distribution box of claim 1, wherein separate and distinct points are provided for attachment of the shield and the earthing arrangement inside the distribution box.
6. The distribution box of claim 5, wherein separate and distinct points are provided for attachment of the shield and the earthing arrangement inside the distribution box, and wherein said points are located on an I-clamp.
7. The distribution box of claim 1, wherein the shield incorporates one or more openings configured to allow passing of the earthing arrangement.
8. The distribution box of claim 7, wherein the openings are located near corners of the shield.
,TagSPECI:TECHNICAL FIELD
[0001] The present disclosure relates to the field of distribution boards. More particularly, the present disclosure is directed towards methods for earthing of door in distribution boards and improving electrical safety aspects thereof.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art
[0003] Electrical energy has a serious potential to cause damage and therefore lot of care is taken during design and installation of electricity supply and distribution systems. Distribution boards are a major safety contributor for electrical distribution systems, be it within residential/office premises for domestic/office supply or industrial applications. A distribution board is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits, and provides a protective fuse or/and circuit breaker for each circuit in a common enclosure. Distribution boards are also known as breaker panels, fuse boxes, consumer units, panel boards, load centers, among others. Distribution boards are normally housed within a box and such distribution boards housed within a box are commonly referred to as distribution box.
[0004] Distribution boxes are usually provided with a shield. Such shield functions to isolate the electrical energy carrying components from direct exposure and are intended to protect user(s) from unintended contact with electric wires and other live electrical components of a distribution board. The shield is made of an insulating material such as plastic board, thermo plastic board or other such materials and can be either opaque or transparent. Additionally, the distribution boxes are provided with suitable earthing arrangements to prevent users and maintenance workers from being exposed to accidental or unintentional electrical shock. However, it has been observed that inspite of these safety features, the distribution board safety system is not fool proof especially when maintenance work is undertaken. Such routine and periodic maintenance calls for removal of shield thereby breaking the earthing connection of the distribution box. Many times, workers either accidentally or inadvertently forget to replace the shield after completion of maintenance routine and in the process break the earthing integrity of the distribution box.
[0005] There is therefore a need in the art to design and develop systems and methods by which above shortcomings are overcome, and safety arrangement of distribution boards by making earthing arrangement becomes enhanced, reliable, and dependable.
[0006] All publications herein are incorporated by reference to the same extent as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. Where a definition or use of a term in an incorporated reference is inconsistent or contrary to the definition of that term provided herein, the definition of that term provided herein applies and the definition of that term in the reference does not apply.
[0007] In some embodiments, the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term “about.” Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
[0008] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0009] The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[0010] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all Markush groups used in the appended claims.

OBJECTS OF THE INVENTION
[0011] It is an object of the present disclosure to provide a foolproof and reliable earthing system for door in a frameless distribution boards.
[0012] It is another object of the present disclosure to provide continuous earthing for door of a distribution board.
[0013] It is an object of the present disclosure to provide shock proof door of a distribution board with proper earthing arrangement.

SUMMARY
[0014] The present disclosure relates to the field of distribution boxes. More particularly, the present disclosure is directed towards method for earthing of door in the distribution boxes and improving the electrical safety aspects thereof.
[0015] In an embodiment, the disclosed method can include an arrangement for using different and separate points for assembling of an earthing connector and a shield inside a distribution box, wherein such arrangement can allow for disassembly of shield from the distribution box without disturbing or removing the earthing connector assembly.
[0016] In an embodiment of the present disclosure, different attachment points for connecting earthing connector and shield can be provided on a common mounting point within the distribution box. In another aspect, different and separate mounting points can be provided for attachment of earthing connector and shield within the distribution box.
[0017] Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0019] FIG. 1A illustrates an exemplary schematic view of a distribution box in accordance with an embodiment of the present disclosure.
[0020] FIG. 1B illustrates an exemplary schematic view of the distribution box with shield in partial removed condition in accordance with an embodiment of the present disclosure.
[0021] FIG. 2A illustrates an exemplary exploded view of door earthing arrangement of the distribution box in accordance with an embodiment of the present disclosure.
[0022] FIG. 2B illustrates an exemplary exploded view of the door earthing arrangement of the distribution box with shield in partial removed condition in accordance with an embodiment of the present disclosure.
[0023] FIG. 3A illustrates an exemplary method for attaching an earthing wire in accordance with an embodiment of the present disclosure.
[0024] FIG. 3B illustrates another exemplary method for attaching the earthing wire in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION
[0025] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0026] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.
[0027] Various terms as used herein are shown below. To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[0028] Embodiments of present disclosure provide a method for earthing of door in a distribution box and improving the electrical safety thereof.
[0029] In an embodiment the disclosed method can include an arrangement for using different and separate points for assembling of an earthing connector and a shield inside the distribution boxes wherein such arrangement can allow for disassembly of the shield from the distribution box without disturbing or removing the earthing connector assembly.
[0030] In another embodiment of the present disclosure, different attachment points for connecting earthing connector and shield can be provided on a common mounting point within the distribution box. In another aspect, different and separate mounting points can be provided for attachment of earthing connector and shield within the distribution box.
[0031] In another embodiment of the present disclosure, a ring lug, a nut, a washer and a stud can be used for attachment of the earthing connector to the distribution box. In another aspect, a fork lug, a washer and a screw can be used for attachment of earthing connector to the distribution box. In another aspect, any other arrangement as are known to person skill in arts can be used for attachment of earthing connector to distribution box. It is to be understood that method for fixing of earthing connector/earthing wire/earthing cable to distribution board and/or door of distribution is not a limitation for this disclosure and any method can be used for fixing of earthing connector/earthing wire/earthing cable to distribution board and/or door of distribution.
[0032] In another embodiment of the present disclosure, shield can be attached to distribution box at single point or at multiple points, wherein number of such attachment points can be either two or three or four or any other number.
[0033] In another embodiment, shield can be provided with one or more suitably located apertures/openings to ensure that the shield does not foul with earthing connector/earthing cable/earthing wire during assembly or disassembly on/from the distribution box. In an aspect, number of these apertures/openings can depend on number of earthing connector/earthing cable/earthing wires and there locations.
[0034] In another embodiment, these apertures/openings can be located near the corners of the shield. In another aspect, cutouts can be located near all four corners of a shield. In another aspect, cutouts in a shield can be provided at any convenient position of a shield.
[0035] It is to be further understood that the current disclosure has been explained using distribution board/distribution box as an example for explaining the invention and that this invention is not limited by the type of distribution board/distribution box and can be implemented on any type of distribution board such as DB boards, ACDB (alternating current distribution boards), DCDB (direct current distribution boards), power breakers, panel boards, breaker box, fuse box, electric board, fuse board, consumer unit (CU), circuit breaker panel, breaker panel, distribution boards having no frame structure, etc.
[0036] Embodiments of the present disclosure and their advantages can be best understood by reference to attached drawings.
[0037] FIG. 1A illustrates an exemplary schematic view 100 of a distribution box 102 in accordance with an embodiment of the present disclosure wherein the distribution box 102 has been shown with its door 104 in open condition. Inside of distribution box 102 can be fitted with various electrical control components 114 such as circuit breakers, fuses, electrical wires busbars and other systems and components required for distribution of power supply. The electric components 114 fitted inside the distribution box 102 can be protected by a shield 106, wherein the shield 106 can be either opaque or transparent and made from an insulating material. The shield 106 can incorporate suitably located openings to provide access to internally fitted electrical components 114. The shield 106 can also incorporate one or more number of means to attach the shield 106 to the distribution box 102. The distribution box 102 can incorporate suitable means for earthing of its door 104 wherein the door 104 can be earthed by connecting one end of a earthing wire/earthing cable 108 to door 104 through connecting means 110 and connecting its second end to the distribution.
[0038] FIG. 1A illustrates an exemplary schematic view 150 of the distribution box 102 in accordance with an embodiment of the present disclosure wherein shield 106 can be seen in partially removed condition and decoupled from distribution box 104.
[0039] FIGs. 2A and 2B illustrate exemplary exploded views 200 and 250 respectively of the door earthing arrangement of the distribution box 102 in accordance with an embodiment of the present disclosure, wherein view 200 shows a final assembled condition of the shield 106 and the earthing wire/earthing cable 108 inside a distribution box 104, and view 250 shows the shield 108 in partially disassembled/decoupled condition. As shown in view 200 of the door earthing arrangement, one end of earthing wire/earthing cable 108 can be fixed to door 104 through attachment means 110 and the second end of the earthing wire/earthing cable 108 can be fixed to the distribution box 102 through attachment means 112 and the shield can be fixed to the distribution box 102 through fixing means 202.
[0040] The view 250 of the door earthing arrangement shows aperture/opening 204 provided in shield 106 with attachment means 202-1. Also shown therein is an I-clamp 206 with two separate fixing points 112 and 202-2, wherein the fixing point 112 can be used for attachment of one end of the earthing wire/earthing cable 108 to distribution box and the fixing point 202-2 can be used for attachment of shield 106 to the distribution box 102. In an aspect, position and number of apertures/openings 204 in the shield 106 can be as per requirement. In an aspect, apertures/openings 204 can be located near four corners of the shield 106.
[0041] FIG. 3A illustrates an exemplary arrangement 300 for attachment of the earthing wire 108 in accordance with an embodiment of the present disclosure wherein the arrangement can comprise a nut 302, a ring lug 304, a washer 306 and a stud 308. Further, the stud 308 can be part of the body of the door 104 or fixed or welded to the body of the door 104 on which one end of earthing wire/earthing cable can be attached through the ring lug 304, the washer 306 and the nut 302.
[0042] FIG. 3B illustrates another exemplary schematic view 350 indicating attachment of the earthing wire 108 in accordance with an embodiment of the present disclosure, wherein such an arrangement can include a screw 352, a fork lug 354 and a washer 356, and wherein one end of earthing wire/earthing cable can be fixed to a fixed location on the distribution box 102. In an aspect, earthing cable/earthing wire 108 can be attached to the distribution box 102 by attaching earthing cable/earthing wire to the fork lug 354 and then fixing the fork lug 354 to the distribution board using the screw 352 and the washer 356. In an aspect, the fork lug 354 can be fixed to the I-clamp 206 of the distribution board 102.
[0043] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE INVENTION
[0044] The present disclosure provides a foolproof and reliable earthing system for door in a frameless distribution boards.
[0045] The present disclosure provides continuous earthing for the door of a distribution boards.
[0046] The present disclosure provides shock proof door of a distribution box with proper earthing arrangement.