Busbar trunking system

Abstract

The invention relates to a busbar trunking system (1). The busbar trunking system (1) comprises a fire protection duct (3) made of a fire protection material and running along a duct longitudinal axis (11), a busbar stack (7) arranged in the fire protection duct (3) and having at least one current conductor (7.1), which is fixed to at least one fixing point in the fire protection duct (3), and a holding structure (5) that can be firmly connected to an object and is coupled to the fire protection duct (3) in such a way that, after being connected to the object, it blocks movement of the fire protection duct (3) along the duct longitudinal axis (11) relative to the object.

Description

[0001] The invention relates to a busbar trunking system.

[0002] A busbar trunking system is a system for transmitting and distributing electrical energy using at least one conductor (usually several conductors). The conductor(s) are usually arranged in a conductor housing from which they are electrically insulated. When installing a busbar trunking system, so-called fixed points may be required. These are used to mechanically connect the busbar trunking system to an object, particularly to prevent longitudinal movement of the busbar trunking system. The object could be, for example, a ceiling, wall, or floor of a building. Normally, such a connection is not a problem, since the conductor housing of the busbar trunking system can be attached directly to the object.If the busbar trunking system is required to remain functional for a defined period of time in the event of a fire (so-called functional integrity), the busbar trunking system must have adequate fire protection cladding. However, this prevents a direct connection of the conductor housing to the object, for example, through the fire protection cladding, as such a connection would create a thermal connection between the conductor housing and the object, thus impairing the function of the fire protection cladding and the functionality of the busbar trunking system in the event of a fire.

[0003] The invention is based on the object of specifying a busbar trunking system which enables both sufficient fire protection of the busbar trunking system in the event of a fire and a coupling of the busbar trunking system to an object, which prevents a longitudinal movement of the busbar trunking system.

[0004] The object is achieved according to the invention by a busbar trunking system having the features of claim 1.

[0005] Advantageous embodiments of the invention are the subject of the subclaims.

[0006] A busbar trunking system according to the invention comprises - a fire protection duct made of a fire protection material and running along a longitudinal axis, - a busbar package arranged in the fire protection duct and having at least one current conductor, which is fixed at at least one fixing point in the fire protection duct, and - a support structure which can be firmly connected to an object and which is coupled to the fire protection duct in such a way that, after its connection to the object, it blocks any movement of the fire protection duct along the longitudinal axis of the duct relative to the object.

[0007] The busbar trunking system according to the invention enables fire protection of the busbar stack by arranging the busbar stack in a fire protection duct, ensuring functional integrity in the event of a fire. By securing the busbar stack in the fire protection duct, movement of the busbar stack within the fire protection duct is prevented, particularly along the duct's longitudinal axis. The support structure prevents movement of the fire protection duct along the duct's longitudinal axis relative to the object to which the support structure is connected, without the busbar stack having to be directly connected to the object.

[0008] In one embodiment of the invention, the support structure has at least one support rod that can be connected to the object and runs perpendicular to a direction of the duct's longitudinal axis. For example, at least one support rod is designed as a steel profile. This design of the support structure with at least one support rod allows the support structure to be easily connected to the object using the support rod, as well as blocking movement of the fire protection duct along the duct's longitudinal axis relative to the object. Designing the support rod as a steel profile enables the support structure to offer an advantageous price-performance ratio.

[0009] In a further embodiment of the invention, opposite sides of at least one support rod in the direction of the longitudinal duct axis each rest against at least one fixing plate, which is arranged on an outer side of the fire protection duct and firmly connected to the fire protection duct. The fixing plates are each made, for example, from a fire protection material. In this embodiment of the invention, movement of the fire protection duct along the longitudinal duct axis relative to the object is blocked by at least one support rod resting on two sides against a fixing plate firmly connected to the fire protection duct, with these sides of the support rod being opposite one another in the direction of the longitudinal duct axis.

[0010] A further embodiment of the invention provides that - the fire protection duct has a duct section which has a duct section opening through which the busbar package is guided, and two end faces opposite each other along the duct longitudinal axis, wherein - at least one support rod of the support structure rests on each of these end faces and - each of these end faces rests against at least one retaining element which is firmly connected to the busbar package. For example, the duct section is designed as a stack of frame plates which rest against one another in pairs and have corresponding recesses which form the duct section opening. Furthermore, it can be provided that two retaining rods rest against each end face of the duct section, which are arranged on opposite sides of the fire protection duct transversely to the duct's longitudinal axis and are connected to one another by a cross strut. In addition, four duct walls of the fire protection duct can adjoin each of the two end faces of the duct section, and the joints at which these duct walls rest against the end face can be sealed with a first sealing frame made of a fire protection material which rests against the duct walls and the end face.

[0011] In the aforementioned embodiment of the invention, movement of the fire protection duct along the longitudinal axis relative to the object is blocked by the engagement of at least one retaining rod on each end face of a duct section of the fire protection duct. The conductor rail assembly is fixed in the fire protection duct by the retaining elements. A design of the retaining structure with two retaining rods on each end face of the duct section, arranged on opposite sides of the fire protection duct perpendicular to the longitudinal axis of the duct, and connected to each other by a cross brace, advantageously increases the stability of the retaining structure and its coupling to the fire protection duct.Sealing the joints where duct walls adjoining a front side of the duct section are in contact with the front side using a sealing frame advantageously increases fire protection at these joints and the functional integrity of the busbar trunking system in the event of a fire.

[0012] In a further embodiment of the invention, the busbar stack is secured in the fire protection duct by at least one first fixing element that is firmly connected to the busbar stack and the fire protection duct. For example, the first fixing element is designed as a sheet metal that is firmly connected, for example, by screw connections, to the busbar stack and the fire protection duct.

[0013] In a further embodiment of the invention, the support structure has a second fixing element made of a fire protection material, firmly connected to the busbar stack, protrudes from the fire protection duct through a first wall opening in a duct wall of the fire protection duct, and is firmly connected outside the fire protection duct to a fixing rod of the support structure. For example, a second sealing frame made of a fire protection material is arranged around the first wall opening and rests against the second fixing element and against the duct wall of the fire protection duct having the first wall opening. The second fixing element, through its connections to the busbar stack and the fixing rod, can both fix the busbar stack in the fire protection duct and block movement of the fire protection duct along the duct's longitudinal axis relative to the object to which the fixing rod is connected.

[0014] In a further embodiment of the invention, the support structure is thermally decoupled from the busbar stack. This thermal decoupling advantageously prevents or reduces heat transfer from the support structure to the busbar stack in the event of a fire.

[0015] In a further embodiment of the invention, the support structure has a support rod that is firmly connected to the busbar package, projects out of the fire protection duct through a second wall opening in a duct wall of the fire protection duct, and is encased outside the fire protection duct with fire protection insulation made of a fire protection material. In this embodiment of the invention, the support rod of the support structure serves both to fix the busbar package in the fire protection duct and to block movement of the fire protection duct along the duct's longitudinal axis relative to the object to which the support rod is connected. The fire protection insulation of the support rod serves to prevent or reduce heat transfer from the support structure to the busbar package in the event of a fire.

[0016] In a further embodiment of the invention, the support structure has two support rods that are arranged on opposite sides of the fire protection duct transversely to the duct's longitudinal axis and are connected to one another by a connecting element that is guided through wall openings in the duct walls of the fire protection duct and connected to the busbar package, wherein each support rod is encased in fire protection insulation made of a fire protection material. In this embodiment of the invention, the connecting element serves both to fix the busbar package in the fire protection duct and to block movement of the fire protection duct along the duct's longitudinal axis relative to the object to which the support rod is connected. The fire protection insulation of the support rods, in turn, serves to prevent or reduce heat transfer from the support structure to the busbar package in the event of a fire.

[0017] In a further embodiment of the invention, the at least one fixing point of the busbar stack in the fire protection duct is arranged in a region of the support structure or on the support structure. The busbar distribution system is equipped with a further support structure that can be firmly connected to the object and is coupled to the fire protection duct in such a way that, after being connected to the object, it blocks movement of the fire protection duct along the longitudinal axis of the duct relative to the object. The busbar stack is mounted in a region of the further support structure so that it can be displaced along the longitudinal axis of the duct.This embodiment of the invention has the advantage that the holding structure fixes the busbar package (also) along the channel's longitudinal axis and thus provides a fixed point, but the further holding structure allows the busbar package to move along the channel's longitudinal axis, thereby taking into account a temperature-dependent elongation of the busbar package due to the ambient temperature and / or ohmic losses due to the current carried by the busbar package.

[0018] The busbar stack can be divided into a first section and a second section and equipped with a conductor bridge that conductively connects the first and second sections and has a length that varies along the longitudinal axis of the channel. For example, the conductor bridge can comprise flexible conductors or busbar segments that slide against each other. The conductor bridge thus compensates for the aforementioned elongation of the busbar stack, so that the busbar stack does not exert any (significant) mechanical forces on the fixed points of the busbar distribution system.

[0019] The above-described properties, features, and advantages of this invention, as well as the manner in which they are achieved, will become clearer and more readily understood in connection with the following description of exemplary embodiments, which are explained in more detail in conjunction with the drawings. Fig. 1 a perspective view of a first embodiment of a busbar trunking system, wherein the busbar package is not shown, Fig. 2 a perspective view of the Fig. 1, wherein the busbar package, a cladding plate and a fixing plate are not shown, Fig. 3 a perspective view of the Fig. 1, wherein the busbar package, a cladding plate, several fixing plates and two duct walls of the fire protection duct are not shown, Fig. 4 a side view of the Fig. 1 shown busbar trunking system, Fig. 5 a sectional view of the Fig. 1 shown busbar trunking system, Fig. 6 a perspective view of a fixing element of the Fig. 1 shown busbar trunking system, Fig. 7 a perspective view of a second embodiment of a busbar trunking system, wherein the busbar package is not shown, Fig. 8 a perspective view of the Fig. 7, whereby the conductor rail package, two duct walls of the fire protection duct and the fixing element are not shown, Fig. 9 a sectional view of the Fig. 7 shown busbar trunking system, Fig. 10 is a perspective view of a third embodiment of a busbar trunking system, wherein the busbar package is not shown, Fig. 11 a perspective view of the Fig. 10, whereby the conductor rail package and several duct walls of the fire protection duct are not shown, Fig. 12 a perspective view of a holding element of the Fig. 10 shown busbar trunking system, Fig. 13 a perspective view of the support structure and a channel section of the Fig. 10 shown busbar trunking system, Fig. 14 a perspective view of a frame plate of the Fig. 10 shown busbar trunking system, Fig. 15 a side view of the Fig. 10 shown busbar trunking system, Fig. 16 a first sectional view of the Fig. 10 shown busbar trunking system, Fig. 17 a second sectional view of the Fig. 10 shown busbar trunking system, Fig. 18 is a perspective view of a fourth embodiment of a busbar trunking system, wherein the busbar package is not shown, Fig. 19 a perspective view of the Fig. 18, whereby the conductor rail package and two duct walls of the fire protection duct are not shown, Fig. 20 a side view of the Fig. 18 shown busbar trunking system, Fig. 21 a sectional view of the Fig. 18 shown busbar trunking system, Fig. 22 a perspective view of a fifth embodiment of a busbar trunking system, wherein the busbar package is not shown, Fig. 23 a perspective view of the Fig. 22, whereby the conductor rail package and two duct walls of the fire protection duct are not shown, Fig. 24 a side view of the Fig. 22 shown busbar trunking system, Fig. 25 a sectional view of the Fig. 22 shown busbar trunking system, Fig. 26 a perspective view of a sixth embodiment of a busbar trunking system, wherein the busbar package is not shown, Fig. 27 a perspective view of the Fig. 26, whereby the busbar package, two duct walls of the fire protection duct and the insulation panels are not shown, Fig. 28 a perspective view of the Fig. 26, where only its support rods, three channel walls and the connecting element are shown, Fig. 29 a side view of the Fig. 26 shown busbar trunking system, Fig. 30 a sectional view of the Fig. 26 shown busbar trunking system.

[0020] Corresponding parts are provided with the same reference numerals in the figures.

[0021] The figures show various embodiments of a busbar trunking system 1. Each of these embodiments comprises a fire protection duct 3 made of a fire protection material and running along a duct longitudinal axis 11, a busbar package 7 arranged in the fire protection duct 3, which is fixed at at least one fixing point in the fire protection duct 3, and a holding structure 5 which can be firmly connected to an object and which is coupled to the fire protection duct 3 in such a way that, after its connection to the object, it blocks movement of the fire protection duct along the duct longitudinal axis 11 relative to the object.

[0022] The object can be, for example, a ceiling, a wall, or a floor of a building in which the busbar trunking system 1 is arranged. The fire protection duct 3 is suspended from a ceiling of the building and / or supported on a wall and / or a floor of the building. The suspension and / or support of the fire protection duct 3 is not shown in the figures, as it is not relevant to the invention. The support structure 5 comprises at least one support rod 5.1, which is designed, for example, as a steel profile.

[0023] The busbar package 7 of all embodiments comprises a plurality of current conductors 7.1 and a current conductor housing 7.2 in which the current conductors 7.1 are arranged. The current conductors 7.1 are electrically insulated from one another and from the current conductor housing 7.2. The current conductor housing 7.2 has four fastening rails 7.2.1, each of which runs parallel to the current conductors 7.1, with two fastening rails 7.2.1 being arranged above the current conductors 7.1 on opposite sides of the current conductor housing 7.2 and two further fastening rails 7.2.1 being arranged below the current conductors 7.1 on opposite sides of the current conductor housing 7.2. The designations "above" and "below" the current conductors 7.1 refer to the representation of the busbar package 7 in the Fig. 5, Fig. 9, Fig. 17, Fig. 21 and Fig. 25.

[0024] The Fig. 1 to 6 show a first embodiment of a busbar trunking system 1. In addition to the fire protection duct 3, the support structure 5 and the busbar package 7, the busbar trunking system 1 comprises a fixing element 8, fixing plates 9.1 to 9.4 and cladding plates 10.1, 10.2.

[0025] The Fig. 1 to 4 each show only one section of the busbar trunking system 1 relevant to the invention, the extent of which along a channel longitudinal axis 11 of the fire protection channel 3 can be considerably larger than that shown in the Fig. 1 to 4 and which can have several support structures 5, which are arranged spaced apart from one another along the channel longitudinal axis 11. The same applies to the Fig. 7 to 25 shown embodiments of a busbar trunking system 1.

[0026] The fire protection duct 3 is four-sided and is formed by four duct walls 3.1 to 3.4, with each duct wall 3.1 to 3.4 abutting two other duct walls 3.1 to 3.4, so that the inner surfaces of any two adjacent duct walls 3.1 to 3.4 form a right angle. A first duct wall 3.1 and a second duct wall 3.2 are arranged parallel to each other. A third duct wall 3.3 and a fourth duct wall 3.4 are also parallel to each other and are each arranged between the first duct wall 3.1 and the second duct wall 3.2.

[0027] The support structure 5 comprises two support rods 5.1, which are arranged on opposite sides of the fire protection duct 3. Each support rod 5.1 runs perpendicular to the duct's longitudinal axis 11. Opposite sides 5.1.1, 5.1.2 of each support rod 5.1 in the direction of the duct's longitudinal axis 11 each rest against four fixing plates 9.1 to 9.4, each of which is arranged on an outer side of the fire protection duct 3 and firmly connected to the fire protection duct 3.

[0028] Two first fixing plates 9.1 are arranged on the top side of the fire protection duct 3, two second fixing plates 9.2 are arranged on the bottom side of the fire protection duct 3, two third fixing plates 9.3 are arranged on a first side of the fire protection duct 3 between a first fixing plate 9.1 and a second fixing plate 9.2, and two fourth fixing plates 9.4 are arranged on a second side of the fire protection duct 3 opposite the first side between a first fixing plate 9.1 and a second fixing plate 9.2. The fixing plates 9.1 to 9.4 are each firmly connected to a duct wall 3.1 to 3.4 of the fire protection duct 3, for example by screw connections 12.1, some of which are in Fig. 5 are indicated by lines. The two support rods 5.1 run between the two first fixing plates 9.1, the two second fixing plates 9.2, the two third fixing plates 9.3, and the two fourth fixing plates 9.4.

[0029] A first cladding plate 10.1 rests against the two third fixing plates 9.3, the first fixing plates 9.1, and the second fixing plates 9.2. A second cladding plate 10.2 rests against the two fourth fixing plates 9.4, the first fixing plates 9.1, and the second fixing plates 9.2.

[0030] The duct walls 3.1 to 3.4 of the fire protection duct 3, the fixing plates 9.1 to 9.4 and the cladding plates 10.1, 10.2 are each made of a fire protection material.

[0031] The busbar assembly 7 is secured in the fire protection duct 3 by the fixing element 8. The fixing element 8 comprises two sheets 8.1, 8.2. Each sheet 8.1, 8.2 has a U-shaped profile formed by a base section 8.1.1, 8.2.1 and two leg sections 8.1.2, 8.2.2, with the two leg sections 8.1.2, 8.2.2 adjoining the respective base section 8.1.1, 8.2.1 at opposite ends at right angles. The base section 8.1.1 of a first sheet 8.1 extends between the inner surfaces of the third duct wall 3.3 and the fourth duct wall 3.4. Each leg section 8.1.2 of the first sheet 8.1 rests against one of these inner surfaces and is firmly connected to the respective channel wall 3.3, 3.4, for example by at least one screw connection 12.2. The base section 8.2.1 of the second sheet 8.2 is shorter than the base section 8.1.1 of the first sheet 8.1 and firmly connected to the base section 8.1.1 of the first sheet 8.1, for example by welding. The conductor housing 7.2 is firmly connected to at least one fixing element 8 by a connecting element 13, which is guided through the leg sections 8.2.2 of the second sheet 8.2 and the fastening rails 7.2.1 of the conductor housing 7.2 arranged above the conductor 7.1 and is firmly connected to these fastening rails 7.2.1, for example by screw connections.

[0032] Fig. 1 ( Fig. 1), Fig. 2 ( Fig. 2) and Fig. 3 ( Fig. 3) each show a perspective view of a section of the busbar trunking system 1, wherein the busbar package 7 is not shown, in Fig. 2 the first cladding plate 10.1 and a third fixing plate 9.3 are not shown and in Fig. 3 the first cladding plate 10.1, the two first fixing plates 9.1, the two third fixing plates 9.3, the first channel wall 3.1 and the third channel wall 3.3 are not shown.

[0033] Fig. 4 ( Fig. 4) shows a side view of the busbar trunking system 1. Fig. 5 ( Fig. 5) shows a sectional view of the busbar trunking system 1. Fig. 6 ( Fig. 6) shows a perspective view of the fixing element 8.

[0034] The Fig. 7 to 9 show a second embodiment of a busbar trunking system 1. This embodiment differs from that shown in the Fig. 1 to 6 only in that it has only the fixing plates 9.2 arranged on the underside of the fire protection duct 3, but not the further fixing plates 9.1, 9.3, 9.4, and that the fixing element 8 is arranged below the current conductors 7.1 instead of above the current conductors 7.1.

[0035] Fig. 7 ( Fig. 7) and Fig. 8 ( Fig. 8) each show a perspective view of a section of the busbar trunking system 1, wherein the busbar package 7 is not shown and in Fig. 8 the first channel wall 3.1, the third channel wall 3.3 and the fixing element 8 are not shown. Fig. 9 ( Fig. 9) shows a Fig. 5 corresponding sectional view of the busbar trunking system 1. The fixing element 8 is as in Fig. 6 shown formed and fixed analogously to Fig. 5 the busbar package 7 in the fire protection duct 3, whereby in the Fig. 9, however, at least one connecting element 13 is guided through the leg sections 8.2.2 of the second sheet 8.2 of the fixing element 8 and through the fastening rails 7.2.1 of the current conductor housing 7.2 arranged below the current conductors 7.1.

[0036] The Fig. 10 to 17 show a third embodiment of a busbar trunking system 1. In this embodiment, the fire protection duct 3 has at least one duct section 14, which is designed as a stack of frame plates 14.1, which abut one another in pairs and have corresponding recesses 14.2. The recesses 14.2 form a duct section opening 14.3, through which the busbar stack 7 is guided. The duct section 14 has two opposite end faces 14.4, each perpendicular to the duct longitudinal axis 11, and against each of which two holding rods 5.1 of the holding structure 5 rest, which are arranged on opposite sides of the fire protection duct 3 transverse to the duct longitudinal axis 11 and are connected to one another by a cross strut 5.2. Each end face 14.4 also rests against a holding element 15, which is firmly connected to the busbar stack 7. In the Fig. In the embodiment shown in Figures 10 to 17, the channel section 14 has three frame plates 14.1. In other embodiments, however, the channel section 14 can also have a different number of frame plates 14.1, in particular only one frame plate 14.1.

[0037] Each of the two end faces 14.4 of the duct section 14 is adjoined by four duct walls 3.1 to 3.4 of the fire protection duct 3, which, like the duct walls 3.1 to 3.4 of the Fig. 1 to 9. The joints where these duct walls 3.1 to 3.4 abut the end face 14.4 are sealed with a first sealing frame 16 made of a fire-protection material, which abuts the outside of the duct walls 3.1 to 3.4 and the end face 14.4 and is formed by four frame parts 16.1 to 16.4. Each sealing frame 16 is firmly connected to the end face 14.4 and the duct walls 3.1 to 3.4 against which it abuts, for example, by means of screw connections (not shown).

[0038] Each holding element 15 is formed as a sheet metal with a main body 15.1 and two holding strips 15.2 projecting at right angles from the main body 15.1. The spacing of the holding strips 15.2 corresponds to the extent of the channel section 14 parallel to the channel longitudinal axis 11. Each holding strip 15.2 of a holding element 15 rests against an end face 14.4 of the channel section 14. The main body 15.1 of each holding element 15 is firmly connected to at least one fastening rail 7.2.1 of the conductor housing 7.2, for example, by means of at least one screw connection 12.3.

[0039] Fig. 10 ( Fig. 10) shows a perspective view of a section of the busbar trunking system 1 without the busbar package 7. Fig. 11 ( Fig. 11) shows a perspective view of the section of the busbar trunking system 1 without the busbar package 7, the first duct walls 3.1 and the third duct walls 3.3. Fig. 12 ( Fig. 12) shows a perspective view of a holding element 15. Fig. 13 ( Fig. 13) shows a perspective view of the support structure 5 and the channel section 14. Fig. 14 ( Fig. 14) shows a perspective view of a frame plate 14.1. Fig. 15 ( Fig. 15) shows a side view of the Fig. 10 and Fig. 11 shown section of the busbar trunking system 1. Fig. 16 ( Fig. 16) shows a first sectional view of the Fig. 10 and Fig. 11 shown section of the busbar trunking system 1. Fig. 17 ( Fig. 17) shows a second sectional view of the busbar trunking system 1.

[0040] The Fig. 18 to 21 show a fourth embodiment of a busbar trunking system 1. In this embodiment, the fire protection duct 3 is as in the Fig. 1 to 9, the support structure 5 is formed with four duct walls 3.1 to 3.4, except that the first duct wall 3.1 has a wall opening 3.5. The support structure 5 has a support rod 5.1. Furthermore, the support structure 5 has a fixing element 5.3, which is made of a fire protection material, is firmly connected to the busbar package 7, is guided through the wall opening 3.5 and is firmly connected to the support rod 5.1 outside the fire protection duct 3, for example by a screw connection 12.4. A sealing frame 18 made of a fire protection material is arranged around the wall opening 3.5 and rests against the fixing element 5.3 and the first duct wall 3.1 of the fire protection duct 3. The busbar package 7 is firmly connected to the fixing element 5.3 by at least one connecting element 19, which passes through the fixing element 5.3 and through the fastening rails 7.2 arranged above the current conductors 7.1.1 of the current conductor housing 7.2 and is screwed, for example, to the fixing element 5.3 and / or these fastening rails 7.2.1.

[0041] Fig. 18 ( Fig. 18) and Fig. 19 ( Fig. 19) each show a perspective view of a section of the busbar trunking system 1, wherein the busbar package 7 is not shown and in Fig. 19 the first channel wall 3.1 and the third channel wall 3.3 are not shown. Fig. 20 ( Fig. 20) shows a side view of the Fig. 18 and Fig. 19 shown section of the busbar trunking system 1. Fig. 21 ( Fig. 21) shows a sectional view of the busbar trunking system 1.

[0042] The Fig. 22 to 25 show a fifth embodiment of a busbar trunking system 1. In this embodiment, too, the fire protection duct 3 is as in the Fig. 1 to 9, the fire protection duct is formed with four duct walls 3.1 to 3.4, except that the first duct wall 3.1 has a wall opening 3.6. The support structure 5 has a support rod 5.1, which is firmly connected to the busbar package 7, protrudes from the fire protection duct 3 through the wall opening 3.6, and is encased outside the fire protection duct 3 with a fire protection insulation 20 made of a fire protection material, the fire protection duct-side end of which rests against the first duct wall 3.1.

[0043] The fire protection insulation 20 has an insulation reinforcement 20.1 at its end, which surrounds an end of the support rod 5.1 facing away from the fire protection duct 3, to increase the insulation of a connection between the support rod 5.1 and an object. Furthermore, the end of the fire protection insulation 20 adjacent to the first duct wall 3.1 is surrounded by a sealing frame 22, which bears against the fire protection insulation 20 and the first duct wall 3.1 and increases the insulation of the passage of the support rod 5.1 through the first duct wall 3.1.

[0044] The support rod 5.1 is firmly connected to the busbar package 7 by at least one connecting element 21, which is guided through the support rod 5.1 and the fastening rails 7.2.1 of the current conductor housing 7.2 arranged above the current conductors 7.1 and is screwed, for example, to the support rod 5.1 and / or these fastening rails 7.2.1.

[0045] Fig. 22 ( Fig. 22) and Fig. 23 ( Fig. 23) each show a perspective view of a section of the busbar trunking system 1, wherein the busbar package 7 is not shown and in Fig. 23 the first channel wall 3.1 and the third channel wall 3.3 are not shown. Fig. 24 ( Fig. 24) shows a side view of the Fig. 22 and Fig. 23 section of the busbar trunking system 1. Fig. 25 ( Fig. 25) shows a sectional view of the busbar trunking system 1.

[0046] The Fig. 26 to 30 show a sixth embodiment of a busbar trunking system 1. In this embodiment too, the fire protection duct 3 is as in the Fig. 1 to 9, the third channel wall 3.3 and the fourth channel wall 3.4 each have a wall opening 3.7, these wall openings 3.7 being opposite one another transversely to the longitudinal axis 11 of the channel.

[0047] The support structure 5 comprises two support rods 5.1, which are arranged on opposite sides of the fire protection duct 3, transverse to the duct's longitudinal axis 11. The two support rods 5.1 are connected to each other by a connecting element 23, which is guided through the wall openings 3.7 and through the fastening rails 7.2.1 of the conductor housing 7.2, arranged above the conductors 7.1.

[0048] Each support rod 5.1 is covered with a fire protection insulation 24 made of a fire protection material, which is essentially the same as the fire protection insulation 20 of the Fig. 22 to 25. The fire protection insulation 24 of each support rod 5.1 has an insulation reinforcement 24.1 at its end, which surrounds an end of the support rod 5.1 facing away from the fire protection duct 3, in order to increase the insulation of a connection between the support rod 5.1 and an object. Furthermore, the fire protection insulation 24 of each support rod 5.1 has an end region 24.2 that rests against an end of the support rod 5.1 facing the fire protection duct.

[0049] Joints of the fire protection insulation 24 of each support rod 5.1 with the fire protection duct 3 are sealed with insulation plates 25.1 to 25.4 made of a fire protection material, which are each firmly connected to the fire protection duct 3 and rest on an outer side of the fire protection duct 3 and on at least one fire protection insulation 24. In the Fig. 26 to 30, two first insulation plates 25.1 each rest against the first duct wall 3.1 and the two fire protection insulations 24, a second insulation plate 25.2 rests against the first duct wall 3.1, the two fire protection insulations 24 and the two first insulation plates 25.1, four third insulation plates 25.3 each rest against a fire protection insulation 24, a first insulation plate 25.1 and laterally against the fire protection duct 3 and two fourth insulation plates 25.4 each rest against the end region 24.2 of a fire protection insulation 24, two third insulation plates 25.3 and laterally against the fire protection duct 3.

[0050] Fig. 26 ( Fig. 26), Fig. 27 ( Fig. 27) and Fig. 28 ( Fig. 28) each show a perspective view of a section of the busbar trunking system 1, wherein the busbar package 7 is not shown, in Fig. 27 the duct walls 3.1 and 3.3 of the fire protection duct 3 and the insulation panels 25.1 to 25.4 are not shown, and in Fig. 28 only the support rods 5.1, the channel walls 3.2, 3.3 and 3.4 and the connecting element 23 of the busbar trunking system 1 are shown. Fig. 29 ( Fig. 29) shows a side view of a section of the busbar trunking system 1. Fig. 30 ( Fig. 30) shows a sectional view of the busbar trunking system 1.

[0051] The fire protection materials of the busbar trunking system 1 of each embodiment contain, for example, calcium silicate.

[0052] Although the invention has been illustrated and described in detail by means of preferred embodiments, the invention is not limited by the disclosed examples and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. List of reference symbols 1 busbar trunking system 3 fire protection duct 3.1 to 3.4 Canal wall 3.5, 3.6, 3.7 Wall opening 5 Supporting structure 5.1 Holding rod 5.1.1, 5.1.2 Side of a support rod 5.2 Cross brace 5.3, 8 Fixing element 7 Busbar package 7.1 Conductors 7.2 Conductor housing 7.2.1 Mounting rail 8.1, 8.2 Sheet metal 8.1.1, 8.2.1 Basic section 8.1.2, 8.2.2 Leg section 9.1 to 9.4 Fixing plate 10.1, 10.2 Cladding panel 11 Channel longitudinal axis 12.1 to 12.4 Screw connection 13, 19, 21, 23 connecting element 14 canal section 14.1 Frame plate 14.2 Recess 14.3 Channel section opening 14.4 Front side 15 Holding element 15.1 Main body 15.2 Retaining bar 16, 18, 22 sealing frames 20, 24 Fire protection insulation 20.1, 24.1 Insulation reinforcement 24.2 End area of a fire protection insulation 25.1 to 25.4 Insulation plate

Claims

[1] Busbar trunking system (1), comprising - a fire protection duct (3) made of a fire protection material and running along a duct longitudinal axis (11), - a busbar package (7) arranged in the fire protection duct (3) and having at least one current conductor (7.1), which is fixed at at least one fixing point in the fire protection duct (3), and - a support structure (5) which can be firmly connected to an object and which is coupled to the fire protection duct (3) in such a way that, after its connection to the object, it blocks a movement of the fire protection duct (3) along the duct longitudinal axis (11) relative to the object. [2] Busbar trunking system (1) according to claim 1, wherein the holding structure (5) has at least one holding rod (5.1) connectable to the object, which extends perpendicular to a direction of the channel longitudinal axis (11). [3] Busbar trunking system (1) according to claim 2, wherein at least one holding rod (5.1) is designed as a steel profile. [4] Busbar trunking system (1) according to claim 2 or 3, wherein opposite sides (5.1.1, 5.1.2) of at least one holding rod (5.1) in the direction of the longitudinal axis (11) of the duct each bear against at least one fixing plate (9.1 to 9.4) which is arranged on an outer side of the fire protection duct (3) and is firmly connected to the fire protection duct (3). [5] Busbar trunking system (1) according to claim 4, wherein each fixing plate (9.1 to 9.4) is made of a fire protection material. [6] Busbar trunking system (1) according to one of claims 2 to 5, wherein - the fire protection duct (3) has a duct section (14) which has a duct section opening (14.3) through which the busbar package (7) is guided, and two end faces (14.4) opposite one another along the duct longitudinal axis (11), wherein - at least one support rod (5.1) of the support structure (5) rests on each of these end faces (14.4) and - each of these end faces (14.4) bears against at least one holding element (15) which is firmly connected to the busbar package (7). [7] Busbar trunking system (1) according to claim 6, wherein the channel section (14) is designed as a plate stack of frame plates (14.1) which abut one another in pairs and have mutually corresponding recesses (14.2) which form the channel section opening (14.3). [8] Busbar trunking system (1) according to claim 6 or 7, wherein two support rods (5.1) are arranged on each end face (14.4) of the duct section (14), which support rods are arranged on opposite sides of the fire protection duct (3) transversely to the duct longitudinal axis (11) and are connected to one another by a cross strut (5.2). [9] Busbar trunking system (1) according to one of claims 6 to 8, wherein four duct walls (3.1 to 3.4) of the fire protection duct (3) adjoin each of the two end faces (14.4) of the duct section (14) and the joints at which these duct walls (3.1 to 3.4) abut the end face (14.4) are sealed with a first sealing frame (16) made of a fire protection material, which is abutted against the duct walls (3.1 to 3.4) and the end face (14.4). [10] Busbar trunking system (1) according to one of the preceding claims, wherein the busbar package (7) is fixed in the fire protection duct (3) by at least one first fixing element (8) which is firmly connected to the busbar package (7) and the fire protection duct (3). [11] Busbar trunking system (1) according to one of claims 2 to 10, wherein the holding structure (5) has a second fixing element (5.3) which is made of a fire protection material, is firmly connected to the busbar package (7), protrudes from the fire protection duct (3) through a first wall opening (3.5) in a duct wall (3.1 to 3.4) of the fire protection duct (3) and is firmly connected to a holding rod (5.1) of the holding structure (5) outside the fire protection duct (3). [12] Busbar trunking system (1) according to claim 11, wherein a second sealing frame (18) made of a fire protection material is arranged around the first wall opening (3.5), which second sealing frame (18) rests against the second fixing element (5.3) and against the duct wall (3.1 to 3.4) of the fire protection duct (3) having the first wall opening (3.5). [13] Busbar trunking system (1) according to one of the preceding claims, wherein the holding structure (5) is thermally decoupled from the busbar package (7). [14] Busbar trunking system (1) according to one of claims 2 to 12, wherein the holding structure (5) has a holding rod (5.1) which is firmly connected to the busbar package (7), protrudes from the fire protection duct (3) through a second wall opening (3.6) in a duct wall (3.1 to 3.4) of the fire protection duct (3) and is encased outside the fire protection duct (3) with a fire protection insulation (20) made of a fire protection material. [15] Busbar trunking system (1) according to one of claims 2 to 12, wherein the holding structure (5) has two holding rods (5.1) which are arranged on opposite sides of the fire protection duct (3) transversely to the duct longitudinal axis (11) and are connected to one another by a connecting element (23) which is guided through wall openings (3.7) in duct walls (3.1 to 3.4) of the fire protection duct (3) and is connected to the busbar package (7), and wherein each holding rod (5.1) is encased in fire protection insulation (24) made of a fire protection material. [16] Busbar trunking system (1) according to one of the preceding claims, in which the at least one fixing point of the conductor rail package (7) in the fire protection duct (3) is arranged in a region of the support structure (5) or on the support structure (5) and with a further support structure (5) which can be firmly connected to the object and which is coupled to the fire protection duct (3) in such a way that, after its connection to the object, it blocks a movement of the fire protection duct (3) along the longitudinal axis (11) of the duct relative to the object, wherein the conductor rail package (7) is mounted displaceably along the longitudinal axis (11) of the duct in a region of the further support structure (5). [17] Busbar distribution system according to claim 16, wherein the busbar package (7) is divided into a first section and a second section and with a conductor bridge which conductively connects the first section and the second section and has a length which is variable along the longitudinal axis (11) of the channel.

Images