EP3016718A1 - Insert coupe-feu intumescent et module muni d'un insert coupe-feu intumescent - Google Patents

Insert coupe-feu intumescent et module muni d'un insert coupe-feu intumescent

Info

Publication number
EP3016718A1
EP3016718A1 EP14734500.3A EP14734500A EP3016718A1 EP 3016718 A1 EP3016718 A1 EP 3016718A1 EP 14734500 A EP14734500 A EP 14734500A EP 3016718 A1 EP3016718 A1 EP 3016718A1
Authority
EP
European Patent Office
Prior art keywords
fire protection
protection insert
base body
electrical installation
peripheral wall
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Withdrawn
Application number
EP14734500.3A
Other languages
German (de)
English (en)
Inventor
Herbert Münzenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP14734500.3A priority Critical patent/EP3016718A1/fr
Publication of EP3016718A1 publication Critical patent/EP3016718A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
    • 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 intumescent fire protection insert for electrical installation boxes in walls or ceilings.
  • intumescent fire protection insert for electrical installation boxes in walls or ceilings.
  • Previously known seals can each meet only one or two of these requirements.
  • the draft-proof seals also provide a certain amount of sound insulation, the material provides only little protection against fire.
  • Fire protection elements on the other hand, are difficult to integrate into electrical installation boxes, since the connections to cable ducts routed in the walls must also be sealed. In addition, the space is limited within such electrical installation boxes.
  • the object of the invention is therefore to provide an intumescent fire protection insert that allows sealing of the electrical installation boxes both in case of fire and in normal use against sound and draft and is also retrofitted in existing electrical installation boxes in walls and ceilings.
  • an intumescent fire protection insert for positive insertion into an electrical box in walls or ceilings is provided, which has a bottom and a peripheral wall adjoining the ground, with a flat body, which has the shape of the bottom of the electrical socket, and at least one side element pivotally mounted on an edge of the body and having the shape of a portion of the peripheral wall.
  • the invention is based on the consideration to provide an insert for electrical installation boxes, which meets all requirements for both fire protection and to the sound and draft protection.
  • This insert is inserted into the electrical installation box, which is already mounted on the wall or ceiling, for example, is poured into this. Subsequently, the electrical installations are mounted in the electrical installation box. Cables that are to be connected to the electrical installations can already be laid before inserting this fire protection insert, so that their installation is not impeded by the fire protection insert.
  • the fire protection insert is flat in pre-assembled state, so that a simple transport and a space-saving storage are possible.
  • the fire protection insert has a base body, which rests in the assembled state flat on the floor of the electrical installation box and this completely, but at least covered in the range of openings for cables or lines.
  • the side member which is pivotally mounted on the base body, partially covers the peripheral wall, but at least in the region of openings.
  • recesses may be provided in the base body or in the side member, wherein these are adapted so that the fire protection liner in the circumferential direction completely rests against the line or the cable, so that the openings are sealed against sound and drafts, creating a good protection against the Passage of sound or draft is made.
  • the material foams the fire protection insert with increasing temperature and seals so the electrical installation box or the openings and openings for cables or wires of the electrical installation box additionally.
  • the at least one side element is preferably integrally connected to the base body, so that no gap can arise between the base body and the side element. In addition, the transport and assembly are facilitated because the side member can not be lost.
  • the side member may be pivotally mounted on the body in various ways. If these are integrally connected to one another, at least one folding edge is provided between the base body and the side element, for example, about which the side element can be pivoted. In particular, this folding edge may be formed by a groove.
  • At the edges of the base body and / or at the edges of the at least one side member may additionally be provided a bead or a thickening. This bead or thickening is additionally compressed at the onset of electrical installation, so that an improved seal against sound or drafts can be achieved.
  • recesses can be made on the main body or on the side part, through which cables or lines can be guided. But it is also conceivable that at least one opening for a cable or a line is provided on the base body and / or on at least one side member.
  • this breakthrough is preferably formed by a predetermined breaking point, which is opened only during assembly of the fire protection insert or a cable. This predetermined breaking point can preferably be opened without tools or with simple means, so that an easy laying of cables is possible. If the fire protection insert is used for standard electrical installation boxes, several such openings may be provided with a predetermined breaking point at the frequently used positions for a cable breakthrough.
  • a plurality of side elements may be provided, which are distributed in particular at the edge of the main body and together have the shape of the peripheral wall.
  • the electrical socket can be completely lined inside, creating a particularly good fire protection and a very good seal against sound and drafts can be achieved.
  • several side elements that cover the peripheral wall only in the range of openings or openings for cables or lines.
  • two or more side elements preferably two opposing side walls, may be configured such that they protrude beyond the side walls of the electrical mounting box in the mounted state, ie in the inserted state.
  • the projecting beyond the electrical mounting box part of the side element of the fire protection insert is then bent and fixed to the electrical installation on the device by fastening means, such as screws. In this way it can be prevented that in case of fire, when the electric mounting can softens or begins to melt and no longer stops at the component so that it falls down, the fire protection insert is entrained. This would then lose their effect. Due to the additional fixation on the component, the fire protection insert remains in the component opening and can seal it in case of fire.
  • the projecting beyond the side walls of the electrical mounting box part may be integrally formed with the side members, or be connected as a further element with the side member, which may be provided for easier bending with a folding edge. To this folding edge can then be pivoted, the additional element.
  • the fire protection insert preferably comprises a foamable binder which contains an intumescent mixture of substances.
  • the binder serves as a composite-forming carrier for the intumescent mixture.
  • the mixture of substances is preferably distributed homogeneously in the binder.
  • the composite-forming carrier is preferably selected from the group consisting of polyurethanes, phenolic resins, polystyrenes, polyolefins such as polyethylene and / or polybutylene, melamine resins, melamine resin foams, synthetic or natural rubber, cellulose, elastomers, and mixtures thereof, with polyurethanes being preferred.
  • the intumescent mixture comprises the usual fire protection additives known to the person skilled in the art, which foam in the event of fire, ie under heat and form a foam which prevents flame propagation, such as an intumescent material based on an acid generator, a carbon-providing compound and a gas generator.
  • the intumescent material comprises as acid generator, a salt or an ester of an inorganic, non-volatile acid selected from sulfuric acid, phosphoric acid and boric acid, as the carbon-providing compound, a polyhydroxy compound and / or a thermoplastic or thermosetting polymeric resin binder and as a gas-forming agent a chlorinated paraffin, melamine, a Melamine compound, in particular melamine cyanurate, melamine phosphate, melamine polyphosphate, tris (hydroxyethyl) cyanurate, cyanamide, dicyanamide, dicyandiamide, biguanidine and / or a guanidine salt, in particular guanidine phosphate or guanidine sulfate.
  • an inorganic, non-volatile acid selected from sulfuric acid, phosphoric acid and boric acid
  • the carbon-providing compound a polyhydroxy compound and / or a thermoplastic or thermosetting polymeric resin binder and as a gas-forming
  • the composite-forming carrier may further as an ablative additive, an inorganic compound, the water, for example, as water of crystallization, stored firmly and at temperatures up to 100 ° C does not dry out, but this releases in the event of fire from 120 ° C contain. As a result, temperature-carrying parts can be cooled.
  • an inorganic hydroxide or hydrate which releases water at the firing temperature or during flame treatment in particular aluminum hydroxide, aluminum oxide hydrates or partially hydrated aluminum hydroxides.
  • other inorganic hydroxides or hydrates which emit water during the flame treatment are also suitable, as described in EP 0 274 068 A2.
  • the preparation of the fire protection insert is possible, for example, by means of molded foams, such as reaction foams (RIM), according to DE 3917518, eg with Formox® fire protection foam or the intumescent building material HILTI CP 65GN.
  • molded foams such as reaction foams (RIM), according to DE 3917518, eg with Formox® fire protection foam or the intumescent building material HILTI CP 65GN.
  • Materials that can be used for purposes of the invention are known from EP 0061024 A1, EP 0051 106 A1, EP 0043952 A1, EP 0158165 A1, EP 01 16846 A1 and US Pat. No. 3,396,129 A and EP 1347549 A1.
  • the molded body consists of an intumescent polyurethane foam, as it is known from EP 0061024 A1, DE 3025309 A1, DE 3041731 A1, DE 3302416 A and DE 341 1 327 A1.
  • glass fibers can be incorporated into the fire protection insert, by which a much higher stability of the foamed material can be achieved.
  • the fire protection insert may for example comprise a core of glass fibers, in particular of a glass fiber fabric. This also improves the stability during processing of the fire protection insert, so that a simpler laying of the fire protection insert, in particular a simpler folding or pivoting of the side elements, is possible.
  • an assembly with such a fire protection insert and an electrical installation box is provided.
  • the electrical installation box has a bottom and a peripheral wall adjoining the floor, wherein the main body of the fire protection element completely covers the floor and the side elements completely cover the peripheral wall of the electrical installation box.
  • FIG. 1 shows a fire protection insert according to the invention
  • FIG. 2 shows an assembly according to the invention with an electrical installation box and the fire protection insert from FIG. 1.
  • FIG. 1 shows an intumescent fire protection insert 10 for insertion into an electrical installation box 12 shown in FIG.
  • electrical installation boxes 12 are mounted in walls or ceilings to install electrical installations, such as light switches or sockets.
  • the electrical installation boxes 12 are either mounted in recesses in the walls or, for example, cast in concrete walls during manufacture in this.
  • the electrical installation box 12 has a bottom 14 and an existing of a plurality of side walls 15 peripheral wall 16 which define a receiving space 18 for an electrical installation, such as a socket or a light switch. On the peripheral wall 16 a plurality of openings 20 are provided. Cable ducts can be connected to these openings 20 in order to lead lines into the receiving space 18. Other openings may be provided on the bottom 14 of the electrical installation box 12.
  • the fire protection insert 10 shown in FIG. 1 has a rectangular basic body 22 which, in the embodiment shown here, essentially has the shape of the bottom 14 of the electrical installation box 12. Furthermore, side elements 26 are provided at the edges 24 of the base body 22, which, as will be explained below, each have the shape of a side wall 15 of the peripheral wall 16 of the electrical installation box 12.
  • the fire protection insert 10 has in the embodiment shown here a core of a glass fiber fabric, which gives the fire protection insert 10 sufficient stability and flexibility.
  • the glass fiber fabric is completely integrated in the fire protection insert 10.
  • the side members 26 are integrally connected to the base body 22, wherein between the side members 26 and the Base body 22 each have a folding edge 28 is provided, which is formed by a groove. As a result, the side members 26 are pivotally mounted on the base body 22.
  • beads 30, which are formed by a thickening of the intumescent material, are provided on the free edges of the side elements 26 (see also FIG. 2).
  • predetermined breaking points 32 are provided on the side elements as well as on the main body 22. At this the intumescent material is thinner and / or cut through the glass fiber fabric.
  • the fire protection insert 10 is inserted into the electrical installation box 12 so that the base body 22 rests flat on the floor 14 of the electrical installation box 12. This can be done before installing the electrical installation box 12. But it is also possible that the electrical installation box 12 is already mounted in the wall or ceiling, in particular in this is concreted. The insertion of the fire protection insert 10 is also possible with older, already installed electrical installation boxes 12. Furthermore, in the assembled state, the side elements 26 bear on the circumferential wall 16 and in particular cover the openings 20.
  • the predetermined breaking points 32 are arranged such that they lie above the openings 20. To perform cables or lines, the predetermined breaking points 32 can be opened so that an opening for the cable or the line is formed.
  • the apertures are formed as an elongated slot, so that the fire protection insert in the circumferential direction of the cable or line and seals the breakthrough. If additional openings 20 are provided in the electrical installation box 12, to which no predetermined breaking points 32 are assigned, additional openings can also be made in the fire protection insert 10, for example by cutting through the fire protection insert. In this case, make sure that the breakthrough is chosen only so large that no gap is formed between the fire protection insert 10 and the line or the cable through which drafts or sound can penetrate. Due to the flexible material of the fire protection insert, this sealing can be placed around the performed lines. Is to it is preferred that the aperture is smaller than the diameter of the lead or cable to be made.
  • the beads 30 abut against the free edges of the adjacent side elements 26 and are additionally pressed against them when the electrical installations are inserted, so that an additional seal against sound and draft between the adjacent edges takes place. Further beads may be provided at the free edges of the side members 26 or at apertures.
  • the intumescent material of the fire protection insert 10 foams and thus seals the entire electrical installation box 12 in the event of fire.
  • the fire protection insert 10 can be arbitrarily adapted to an electrical installation box 12.
  • the base body 22 in each case substantially in the form of a bottom 14 of the electrical installation box 12 and the side members 26 together form the peripheral wall 16 of the electrical installation box 12th
  • the base body 22 and the side members 26, the bottom 14 and the peripheral wall 16 only partially cover, in particular in the region of the openings 20 so that they are sealed against sound and drafts and in case of fire in addition by the intumescent intumescent material be sealed.
  • the base body 22 and the side members 26, the bottom 14 and the peripheral wall 16 only partially cover, in particular in the region of the openings 20 so that they are sealed against sound and drafts and in case of fire in addition by the intumescent intumescent material be sealed.
  • only one side member 26 is provided.
  • the main body 22 may for example also be subsequently adapted to the shape of the bottom 14. It is also possible to subsequently introduce folded edges 28 in order to achieve an ideal adaptation to the shape of the electrical installation box 12.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Connection Or Junction Boxes (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

L'invention concerne un insert coupe-feu intumescent (10) destiné à être inséré par complémentarité de formes dans une prise électrique (12) installée dans des murs ou des planchers, laquelle présente un fond (14) et une paroi périphérique (16) adjacente au fond (14). Ledit insert comprend un corps de base (22) plat ayant la forme du fond (14) de la prise électrique (12), ainsi qu'au moins un élément latéral (26) monté de façon à pouvoir pivoter autour d'un bord (24) du corps de base (22) et ayant la forme d'un segment de la paroi périphérique (16).
EP14734500.3A 2013-07-03 2014-07-03 Insert coupe-feu intumescent et module muni d'un insert coupe-feu intumescent Withdrawn EP3016718A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14734500.3A EP3016718A1 (fr) 2013-07-03 2014-07-03 Insert coupe-feu intumescent et module muni d'un insert coupe-feu intumescent

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13174854.3A EP2821108A1 (fr) 2013-07-03 2013-07-03 Installations de protection contre l'incendie intumescente et module doté d'une installation de protection contre l'incendie intumescente
PCT/EP2014/064151 WO2015001005A1 (fr) 2013-07-03 2014-07-03 Insert coupe-feu intumescent et module muni d'un insert coupe-feu intumescent
EP14734500.3A EP3016718A1 (fr) 2013-07-03 2014-07-03 Insert coupe-feu intumescent et module muni d'un insert coupe-feu intumescent

Publications (1)

Publication Number Publication Date
EP3016718A1 true EP3016718A1 (fr) 2016-05-11

Family

ID=48803385

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13174854.3A Withdrawn EP2821108A1 (fr) 2013-07-03 2013-07-03 Installations de protection contre l'incendie intumescente et module doté d'une installation de protection contre l'incendie intumescente
EP14734500.3A Withdrawn EP3016718A1 (fr) 2013-07-03 2014-07-03 Insert coupe-feu intumescent et module muni d'un insert coupe-feu intumescent

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13174854.3A Withdrawn EP2821108A1 (fr) 2013-07-03 2013-07-03 Installations de protection contre l'incendie intumescente et module doté d'une installation de protection contre l'incendie intumescente

Country Status (4)

Country Link
US (1) US20160339281A1 (fr)
EP (2) EP2821108A1 (fr)
CA (1) CA2916315A1 (fr)
WO (1) WO2015001005A1 (fr)

Families Citing this family (12)

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GB2531598B (en) * 2014-10-24 2020-01-01 Intumescent Systems Ltd Fire proofed acoustic liners for electrical socket boxes
GB2536646A (en) * 2015-03-24 2016-09-28 Intumescent Systems Ltd Non-combustible consumer units
DE102016111689B4 (de) * 2016-06-27 2018-04-12 Svt Brandschutz Vertriebsgesellschaft Mbh International Brandschutzabdeckung
EP3367524A1 (fr) * 2017-02-22 2018-08-29 HILTI Aktiengesellschaft Installation de protection contre l'incendie pour des prises électriques
US20180298605A1 (en) * 2017-04-17 2018-10-18 Fire Shield LLC Fire barrier box for membrane penetrations
US20200147426A1 (en) 2018-11-13 2020-05-14 E-Cell Secure, L.L.C. Hazardous products containment system and method
GB2584442B (en) * 2019-06-03 2022-03-02 Vexbox Ltd A fire-proof extension for an electrical back box
GB2588670B (en) * 2019-11-01 2024-05-15 Fire And Sound Solutions Group Ltd Electrical back box
EP3926773A1 (fr) * 2020-06-15 2021-12-22 f-tronic GmbH Prise pour l'installation électrique et/ou le cadre de couverture, panneau et/ou élément d'actionnement pour une prise pour l'installation électrique
FR3134275A1 (fr) * 2022-03-31 2023-10-06 Saint-Gobain Placo Boîtier de protection
EP4254693A1 (fr) * 2022-03-31 2023-10-04 Saint-Gobain Placo Boitier de protection
WO2024107051A1 (fr) * 2022-11-16 2024-05-23 Marciso B.V. Protecteur de connexion de câble extérieur

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US3396129A (en) 1964-07-31 1968-08-06 Agriculture Usa Intumescing fire-retardant coating compositions and method for making same
US3684819A (en) * 1971-02-25 1972-08-15 Ronald G Wilson Sealing boot for an electrical receptacle
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DE3109352A1 (de) 1981-03-12 1982-09-23 Bayer Ag, 5090 Leverkusen Gegebenenfalls geschaeumte intumeszenzmassen und ihre verwendung
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Also Published As

Publication number Publication date
WO2015001005A1 (fr) 2015-01-08
EP2821108A1 (fr) 2015-01-07
CA2916315A1 (fr) 2015-01-08
US20160339281A1 (en) 2016-11-24

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