EP3586416A1 - Brandschutzeinlage für elektromontagedosen - Google Patents
Brandschutzeinlage für elektromontagedosenInfo
- Publication number
- EP3586416A1 EP3586416A1 EP18702716.4A EP18702716A EP3586416A1 EP 3586416 A1 EP3586416 A1 EP 3586416A1 EP 18702716 A EP18702716 A EP 18702716A EP 3586416 A1 EP3586416 A1 EP 3586416A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- mounting box
- carrier material
- intumescent layer
- electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0412—Heat or fire protective means
Definitions
- the invention relates to an insert as fire protection of electrical installation cans, with a carrier material and at least one intumescent layer, and to a method for producing such an insert.
- Drywall walls are being used more and more often for the interior design of buildings. Fire protection walls to prevent the spread of fire are also increasingly produced in dry construction.
- Particularly critical here are the electrical mounting boxes used for drywall.
- the wall openings necessary for the installation of the electrical mounting boxes represent a weak point in the drywall walls, over which a fire can easily spread into adjacent rooms.
- the electrical mounting boxes are plastered into the drywall.
- an admission test can be positively influenced. In practice, this is usually not possible because the assembly of the drywall and the electrical mounting boxes usually takes place at different times of different trades.
- the object of the invention is to improve the fire protection of different electrical installation cans with little effort. This object is achieved by means of the subject matter of the independent claims. Advantageous embodiments of the invention are the subject of each dependent subclaims.
- an insert is provided as fire protection of at least one electric mounting box with a carrier material and at least one intumescent layer, wherein the carrier material and the intumescent layer are plastically deformable.
- the invention is based on the idea of "making up" an electric mounting can by providing it with a lining which has the desired fire-protection properties due to the intumescent material, which can either be provided in different dimensions, it being recognized in this context that As a result, the number of different dimensions used in the field can be limited so that the whole market can be covered with a fairly small number of different sizes, or alternatively the insert can be cut to the required size on site, so that only one "blank" is required is, which is then assembled in the desired manner.
- the insert is particularly suitable for electrical mounting boxes for installation in drywall. Drywall walls are also often used as firewalls in the interior of public buildings, schools, hospitals and office buildings. Due to their special characteristics, their partly special fields of application and their nature, drywall walls make a special demand on the used electrical installation boxes and their fire protection system.
- the insert meets these special requirements and is also suitable for use in electrical mounting boxes suitable for installation in drywall.
- the insert is preferably formed in the form of a mat with a defined thickness.
- the insert has a carrier material which is suitable for receiving at least one intumescent layer.
- the carrier material may for example consist of a metal or a plastic.
- the at least one intumescent layer may be applied as a coating to the carrier material.
- the intumescent layer may be glued or rolled onto the carrier material.
- the carrier material can also encompass the intumescent layer in a form-fitting or non-positive manner. form a sandwich construction with the intumescent layer.
- the intumescent layer is designed such that it increases in volume and decreases in density on exposure to heat, optimally in the event of a fire, or releases a coolant such as, for example, water vapor. As a result, the components can be protected within the electronic mounting box of the intumescent layer from the action of heat and a spread of fire can be prevented by the electrical mounting box.
- the insert can be used due to the flexible adaptation properties, regardless of the type of electrical mounting box.
- the insert is designed such that it can be adapted by plastic deformation, for example by bending or bending, to the different electrical installation boxes and can line the inner surface of an electric mounting box.
- An insert adapted to an electric mounting can in this case permanently take the form taken after a defined period of time or remain permanently plastically deformable.
- the insert may preferably be prefabricated for a specific electrical mounting box or later be cut or made ready for assembly by a user as a mat or by the meter.
- the carrier material consists of metal, so that a plastic deformability with high temperature resistance can be combined.
- the carrier material of the insert is a metal foil or a metal sheet.
- the plastic deformability of the insert can be influenced.
- the use of a thin metal foil as a carrier material can offer a high flexibility of the insert.
- the use of a metal sheet, however, depending on the thickness of the metal sheet can reduce traceability, but develop a certain clamping effect in the electrical mounting box and provide additional stability for themselves and the Elektromontagedose. Thus, for example, the insert can jam with the electric mounting box.
- the metallic support material in case of fire mechanically strengthen the electrical mounting box and reduce or prevent deformation of the electrical mounting box due to heat.
- the carrier material is a metal mesh or a metal mesh. This allows more stability with respect to the metal foil and more flexibility and a lower weight of the finished insert compared to the metal sheet.
- the intumescent layer can, when applied to the carrier material, pull through the carrier material through the openings or braid and form a stable connection.
- the intumescent layer can be applied to the carrier material at least on one side or the carrier material can be enclosed at least partially by the intumescent layer.
- the intumescent layer can be rolled on one, or on both sides of the carrier material, sprayed, cast or painted. As a result, such an insert can be produced in various ways.
- the carrier material could be provided with the intumescent layer by a dipping and subsequent drying process. In this way a complete and secure enclosure of the carrier material is ensured by the intumescent layer.
- the insert has a maximum thickness of less than 4 mm. This will ensure that the insert occupies such a marginal place in all of the electrical installation boxes currently on the market that switch and socket elements can continue to be easily installed in the electrical installation boxes. The installation space of the switch and socket elements is thus only slightly reduced by the use of fire-resistant insert. The type of switch and socket elements and the electrical mounting box is irrelevant.
- the insert can be used for all electrical installation boxes and switch or socket systems available in Europe and can be individually adapted to the respective shape of the electrical installation boxes.
- the insert has at least two opposing arms, so that it can be positively inserted into rectangular or round shaped electrical mounting cans.
- the arms can be supported on opposite walls of the electrical mounting box, the insert due to the plastic deformability can be easily adapted to individual shapes of different electrical installation cans, so that it lines the electrical mounting box accurately. Possible voids between the insert and the electrical mounting box can thus be prevented, so that the fire protection generated by the insert rests directly on the inner surface of the electrical mounting box.
- the length of the arms is greater than the depth of the electric mounting box.
- the insert in the state inserted into the electrical installation, protrudes beyond an edge of a wall of the electrical disassembly can at least in regions.
- Installation components such as switches or sockets allow the insert to be fixed in the electrical mounting box.
- the insert between the electrical box and the installation components can be clamped for fixation.
- the insert could also be glued into the electrical mounting box or fixed by common screws with installation components in the electrical mounting box.
- the survival of the insert beyond the edge of the electrical mounting box ensures that the fire protection is guaranteed for the entire inner surface of the electrical mounting box and also the edge areas of the electrical mounting box are protected from the action of fire.
- a closure of the electrical mounting box or a patch outlet or a switch pinch the projecting portions of the insert between itself and a wall or an edge of the electrical mounting box and achieve an optimal sealing effect.
- a method of making a liner is provided.
- a plastically deformable carrier material is provided, at least one intumescent layer is applied to the provided carrier material and then solidified, in particular by drying or curing.
- the intumescent layer can be injected on one or both sides of the substrate, poured, rolled or painted.
- the carrier material can also be dipped in a molten or liquid intumescent material and completely enclosed by it.
- a drying or curing process takes place.
- an intumescent layer may be applied to the substrate in a two- or one-component injection molding process. In this case, an intumescent thermoplastic can be used.
- a Reaction Injection Molding (RIM) process with a multi-part intumescent reaction mass for applying the at least one intumescent layer to the support material.
- RIM Reaction Injection Molding
- An insert produced in this way is also plastically deformable by the plastically deformable carrier material.
- the insert can be adapted on site or in advance to an electrical mounting box.
- the insert can be cut and bent in order to adapt the insert to components within the electrical mounting box and to the inner geometry of the electrical mounting box.
- the carrier material is provided prefabricated or the insert is subsequently assembled.
- the preferred shape can be selected during the manufacturing process by cutting, perforating or punching the carrier material. If the preferred shape is the final shape of the finished insert, then this is immediately operational. Alternatively, multiple deposits could be contiguously formed in the kit and joined together, for example, via a perforation. A consumer could then separate one of the deposits from the others as needed.
- the insert could be produced as a flat mat or as a piece goods in the form of a roll, so that the size of an insert can be individually cut out of the flat mat.
- the shape of the respective insert can be predetermined, for example, by a perforation or an imprint, or, depending on the requirements, can be determined individually by specifications.
- an electrical mounting box is provided with a plastically deformable insert, wherein the insert is adaptable to an inner region of the electrical mounting box.
- the plastic deformable insert can be adapted independently of an internal geometry of the electrical mounting box so that no cavities between the insert and a wall of the electrical mounting box arise.
- the insert can always be inserted accurately into the electrical mounting box. Excess material of the insert can either remain for the purpose of sealing the electrical mounting box or be cut off.
- FIG. 1 a shows a schematic cross section of an insert according to a first exemplary embodiment
- 1 b is a schematic cross section of an insert according to a second embodiment
- FIG. 2a is a schematic plan view of a mat for cutting out at least one insert according to a first embodiment
- 2b is a schematic plan view of a mat with a plurality of inserts according to a second embodiment
- FIG. 3 shows a schematic plan view of an insert according to the second embodiment
- FIG. 4 a shows a schematic plan view of an electrical assembly box with an insert according to the second embodiment
- FIG. 3 shows a schematic plan view of an insert according to the second embodiment
- FIG. 4 a shows a schematic plan view of an electrical assembly box with an insert according to the second embodiment
- 4b is a schematic cross section of the electrical mounting box with an insert according to the second embodiment.
- FIG. 1a shows a cross section of an insert 1 according to the first exemplary embodiment.
- the insert 1 has a centrally arranged carrier material 2.
- the carrier material 2 is here a metal grid.
- an intumescent layer 4 is arranged in each case.
- the intumescent layers 4 in this case form an upper side and a lower side of the insert 1.
- There the carrier material 2 is a metal grid, there is a multiplicity of connections between the top side and the bottom side through meshes of the metal grid 2, not shown.
- the insert 1 is here designed as a flat mat 6 which can be individually cut or assembled by a user.
- FIG. 1b shows a cross-section of the insert 1 according to a second exemplary embodiment.
- the carrier material 2 of the insert 1 is provided on one side only with an intumescent layer 4.
- the substrate 2 is according to the embodiment, a metal sheet.
- the intumescent layer 4 was applied, for example by an injection molding process on the substrate 2 and cured.
- FIG. 2a shows a schematic plan view of a mat 6 for cutting out at least one insert 1 according to a first embodiment.
- the mat 6 has a square base and is prepared for individual cutting.
- the mat 6 can be assembled with scissors in such a way that several inserts 1 can be cut out of the mat 6.
- the insert 1 can be individually designed and cut by a user.
- FIG. 2b shows a schematic plan view of a mat 6 with a plurality of inserts 1 according to a second embodiment.
- the mat 6 has a rectangular base and has been perforated during manufacture.
- six uniform inserts 1 can be separated out of the mat 6 here.
- the inserts 1 are executed in a cross shape according to the embodiment. After the separation of the deposits 1 a remainder 10 of the mat 6 remains over.
- An insert 1 may also consist of several smaller individual parts, which may be formed, for example, from the rest 10 of the mat 6.
- FIG. 3 shows a schematic plan view of an insert 1 according to the second embodiment, wherein the insert is separated from the other inserts of the mat 6.
- FIG. 4 a shows a schematic plan view of an electrical mounting box 20 with an inlay 1 according to the second embodiment.
- the electrical mounting box 20 is cylindrical and has four threaded portions 21 for receiving screws.
- the electrical mounting box 20 has an interior portion 22 for receiving components and cables, not shown, which is bounded by an edge 24 of the electrical mounting box 20.
- an insert 1 is used according to the second embodiment shown in Figure 3.
- the arms 14 of the insert 1 were bent by 90 °.
- the insert 1 is positioned in the electrical mounting box 20 such that the central area 12 of the insert 1 rests on a floor 26 of the electrical mounting box 20.
- the arms 14 are preferably parallel to the wall 24 of the electrical mounting box 20th
- the respective overlapping areas 16 of the arms 14 protrude from the electrical mounting box 20 and are also bent at a 90 ° angle such that the edge 24 of the electrical mounting box 20 is at least partially covered by the overlapping areas 16.
- FIG. 4b shows a schematic cross section of the electrical mounting box 20 from FIG. 4a along the line AA.
- the figure illustrates in particular the insert 1 in the inserted state in the inner region 22 of the electrical mounting box 20.
- the arms 14 extend parallel to the wall 24 of the electrical mounting box 20 and protrude in the overlap region 16 from the electric mounting box 20 addition.
- the overlap areas 16 are each at a 90 ° angle to the wall 24 of the Electro mounting box 20 bent and thus parallel to a wall 32, which is a cavity wall 32 according to the embodiment.
- a lid 28 may close the electrical mounting box 20 and pinch the protruding overlap areas 16 of the insert 1 between the lid 28 and the wall 24 of the electrical mounting box 20.
- the cover 28 may enter into a positive connection, for example via latching lugs 30 with the wall 24 of the electric mounting box 20.
- latching lugs 30 with the wall 24 of the electric mounting box 20.
- not only the electric mounting box 20, but also possible gaps between the electric mounting box 20 and the wall 32 are sealed at least partially.
- the arrows show analogous to the previous figure laying options for cables in the electrical mounting box 20 inside.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Or Junction Boxes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17157386.8A EP3367524A1 (de) | 2017-02-22 | 2017-02-22 | Brandschutzeinlage für elektromontagedosen |
| PCT/EP2018/053006 WO2018153666A1 (de) | 2017-02-22 | 2018-02-07 | Brandschutzeinlage für elektromontagedosen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3586416A1 true EP3586416A1 (de) | 2020-01-01 |
Family
ID=58387594
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17157386.8A Withdrawn EP3367524A1 (de) | 2017-02-22 | 2017-02-22 | Brandschutzeinlage für elektromontagedosen |
| EP18702716.4A Withdrawn EP3586416A1 (de) | 2017-02-22 | 2018-02-07 | Brandschutzeinlage für elektromontagedosen |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17157386.8A Withdrawn EP3367524A1 (de) | 2017-02-22 | 2017-02-22 | Brandschutzeinlage für elektromontagedosen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20200119534A1 (de) |
| EP (2) | EP3367524A1 (de) |
| CA (1) | CA3049619A1 (de) |
| WO (1) | WO2018153666A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2588670B (en) * | 2019-11-01 | 2024-05-15 | Fire And Sound Solutions Group Ltd | Electrical back box |
| DE202021105015U1 (de) * | 2021-09-17 | 2022-12-22 | OBO Bettermann Hungary Kft. | Installationsdose sowie Intumeszenzeinsatz dafür |
| WO2025129261A1 (en) * | 2023-12-20 | 2025-06-26 | Agnitek Pty Ltd | Fire rated flush box |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140137494A1 (en) * | 2012-11-20 | 2014-05-22 | Specified Technologies Inc. | Curtain wall anchor fire protection apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4299872A (en) * | 1977-09-16 | 1981-11-10 | The United States Of America As Represented By The Secretary Of The Navy | Intumescent material-honeycomb thermal barrier |
| DE29804203U1 (de) * | 1998-03-10 | 1998-05-07 | Schulte, Günter, 59757 Arnsberg | Schutzabdeckung für brandgefährdete elektrische Installationen |
| DE10330555A1 (de) * | 2003-07-06 | 2005-02-10 | Karl Zimmermann Gmbh | Feuerhemmende Massen |
| DE102010052141A1 (de) * | 2010-11-16 | 2012-05-16 | Jan Bröder | Brandschutzausbildung von Installationsdosen |
| EP2821108A1 (de) * | 2013-07-03 | 2015-01-07 | HILTI Aktiengesellschaft | Intumeszierende Brandschutzeinlage und Baugruppe mit intumeszierender Brandschutzeinlage |
| DE102014108551B3 (de) * | 2014-06-17 | 2015-08-27 | Svt Brandschutz Vertriebsgesellschaft Mbh International | Brandschutz für Hohlwanddosen |
| EP3088783A1 (de) * | 2015-04-27 | 2016-11-02 | Hilti Aktiengesellschaft | Brandschutzmanschette |
-
2017
- 2017-02-22 EP EP17157386.8A patent/EP3367524A1/de not_active Withdrawn
-
2018
- 2018-02-07 US US16/472,042 patent/US20200119534A1/en not_active Abandoned
- 2018-02-07 CA CA3049619A patent/CA3049619A1/en active Pending
- 2018-02-07 EP EP18702716.4A patent/EP3586416A1/de not_active Withdrawn
- 2018-02-07 WO PCT/EP2018/053006 patent/WO2018153666A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140137494A1 (en) * | 2012-11-20 | 2014-05-22 | Specified Technologies Inc. | Curtain wall anchor fire protection apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| US20200119534A1 (en) | 2020-04-16 |
| CA3049619A1 (en) | 2018-08-30 |
| EP3367524A1 (de) | 2018-08-29 |
| WO2018153666A1 (de) | 2018-08-30 |
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