NO328171B1 - Fireproof light fixture - Google Patents
Fireproof light fixture Download PDFInfo
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- NO328171B1 NO328171B1 NO20060452A NO20060452A NO328171B1 NO 328171 B1 NO328171 B1 NO 328171B1 NO 20060452 A NO20060452 A NO 20060452A NO 20060452 A NO20060452 A NO 20060452A NO 328171 B1 NO328171 B1 NO 328171B1
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- Prior art keywords
- light fixture
- heat
- fixture according
- ventilation hole
- light
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 61
- 238000009423 ventilation Methods 0.000 claims abstract description 22
- 230000008961 swelling Effects 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 239000003779 heat-resistant material Substances 0.000 claims description 2
- 238000005286 illumination Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 229920002379 silicone rubber Polymers 0.000 description 6
- 239000004945 silicone rubber Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
- F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
- F21V21/041—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates
- F21V21/042—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall
- F21V21/044—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall with elastically deformable elements, e.g. spring tongues
- F21V21/046—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall with elastically deformable elements, e.g. spring tongues being tensioned by rotation of parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/12—Flameproof or explosion-proof arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Building Environments (AREA)
- Special Wing (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Dowels (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
En lysarmatur (10) beregnet for å bli montert i en flate inkluderer et legeme eller et hus (20) hvori en lampe (21) kan bli montert, hvilket legeme innbefatter en kontinuerlig, stiv sidevegg, og en flens (26) som strekker seg i det minste delvis rundt legemet (20). Lysarmaturen (10) er anordnet for å bli installert i en flate (panel) (12), slik at flensen (26) ligger tilstøtende flaten (12). Flensen (26) inkluderer et første materiallegeme (27) som er anordnet for ved bruk å hemme forplantningen av brann i et område mellom flensen (26) og en tilstøtende flate (12). Legemet (20) er utstyrt med minst et ventilasjonshull (34) og inkluderer et andre materiallegeme (31) som er anordnet for ved bruk å hemme forplantningen av brann mellom innsiden og utsiden av lysarmaturen (10) via det minst ene ventilasjonshullet (34). Med en lysarmatur i henhold til oppfinnelsen unngås behovet for en separat brannhette eller tilsvarende, samtidig som brannforskriftene tilfredsstilles.A light fixture (10) intended to be mounted in a surface includes a body or housing (20) in which a lamp (21) can be mounted, which body includes a continuous, rigid side wall, and a flange (26) extending at least partially around the body (20). The light fixture (10) is arranged to be installed in a surface (panel) (12), so that the flange (26) lies adjacent to the surface (12). The flange (26) includes a first body of material (27) which is arranged to, in use, inhibit the propagation of fire in an area between the flange (26) and an adjacent surface (12). The body (20) is equipped with at least one ventilation hole (34) and includes a second material body (31) which is arranged to, in use, inhibit the propagation of fire between the inside and the outside of the light fitting (10) via the at least one ventilation hole (34). With a light fixture according to the invention, the need for a separate fire hood or equivalent is avoided, while meeting the fire regulations.
Description
Den foreliggende oppfinnelse vedrører lysarmaturer. Mer spesifikt vedrører den lysarmaturer som hemmer ildgjennomgang. The present invention relates to lighting fixtures. More specifically, it relates to lighting fixtures that inhibit the passage of fire.
Lysarmaturer er velkjent innen området. Generelt kan lysarmaturer klassifiseres i tre typer: frittstående (slik som standard lamper), de som er montert på en flate (slik som veggmonterte armaturer, eller de som er festet til taket), og de som er montert i en flate (slik som downlights, typisk montert i en takflate). Light fixtures are well known in the field. In general, light fixtures can be classified into three types: free-standing (such as standard lamps), those mounted on a surface (such as wall-mounted fixtures, or those fixed to the ceiling), and those mounted in a surface (such as downlights , typically mounted in a ceiling surface).
Sistnevnte nevnte type armatur krever at det skapes en åpning av en viss størrelse i flaten, hvor gjennom lysarmaturlegemet blir montert. Disse er spesielt populære fordi lysarmaturen kan flukte eller nesten flukte med flaten i hvilken den er montert, og dermed gi belysning uten visuelt iøynefallende armaturer. The last-mentioned type of fixture requires an opening of a certain size to be created in the surface, through which the light fixture body is mounted. These are particularly popular because the light fixture can be flush or nearly flush with the surface in which it is mounted, thus providing lighting without visually conspicuous fixtures.
Imidlertid vedrører en vesentlig bekymring brannsikkerhetsområdet. Det er tilrådelig, og i mange situasjoner påkrevd av helse- og sikkerhets- eller bygningsforskrifter, å hemme spredningen av brann mellom ulike nivåer av en fleretasjes bygning, og mellom ulike rom i en bygning. Dette blir behjulpet ved tilveiebringelse av en sikker innertakskonstruksjon, som hemmer spredningen av brann fira et brennende rom under rommene ovenfor. F.eks. stiller Britisk Standard BS476 del 21 visse krav i forbindelse med konstruksjonen og motstandsevnen til et innertak. However, a significant concern concerns the area of fire safety. It is advisable, and in many situations required by health and safety or building regulations, to inhibit the spread of fire between different levels of a multi-storey building, and between different rooms in a building. This is remedied by providing a safe inner ceiling construction, which inhibits the spread of fire from a burning room below the rooms above. E.g. British Standard BS476 Part 21 sets certain requirements in connection with the construction and resistance of a suspended ceiling.
Et innertaks evne til å begrense en brann blir vesentlig redusert ved dannelse av åpninger i dette for installasjon av lysarmaturer. Dette blir ytterligere forverret av de krav slike lysarmaturer stiller til tilstrekkelig ventilasjon for å fjerne varmen produsert av lampen, og således kreve ytterligere trinn for å sikre at brannsikkerheten blir opprettholdt. Vanligvis er lysarmaturer utstyrt med en "brannhette" slik som den beskrevet i Britisk Patent GB 2297609, som festes over toppen av lysarmaturen og tilveiebringer en egnet brannsikker barriere over åpningen som armaturen er montert i. Imidlertid øker dette i vesentlig grad kostnadene til lysarmaturen, så vel som arbeidskostnadene ved installasjon. A suspended ceiling's ability to limit a fire is significantly reduced by creating openings in it for the installation of light fittings. This is further exacerbated by the requirements such lighting fixtures make for sufficient ventilation to remove the heat produced by the lamp, thus requiring further steps to ensure that fire safety is maintained. Typically, light fixtures are fitted with a "fire cap" such as that described in British Patent GB 2297609, which is fitted over the top of the light fixture and provides a suitable fireproof barrier over the opening in which the light fixture is fitted. However, this significantly increases the cost of the light fixture, so as well as the labor costs of installation.
Den foreliggende oppfinnelse har blitt tenkt ut med tanke på de ovennevnte problemstillinger. The present invention has been devised with the above-mentioned problems in mind.
I henhold til den foreliggende oppfinnelse er det tilveiebrakt en lysarmatur for montering i en flate (panel), innbefattende et legeme i hvilket en lampe kan bli montert, idet legemet innbefatter en kontinuerlig, stiv sidevegg, og en flens som strekker seg i det minste delvis rundt sideveggen og et første materiallegeme, og hvor lysarmaturen er anordnet for å bli installert i en flate slik at det første materiallegemet ligger tilstøtende flaten, og mellom flensen og flaten hvor det første materiallegemet er anordnet for ved bruk å hemme forplantning av brann i et område mellom flensen og et tilstøtende flate, og hvor legemet videre innbefatter minst et ventilasjonshull og et andre materiallegeme som er anordnet for ved bruk å hemme forplantning av brann mellom innsiden og utsiden av lysarmaturen via den minst ene ventilasjonshullet, og hvor det første materiallegemet er varmeaktiverbart og det andre materiallegemet er varmeaktiverbart. According to the present invention, there is provided a light fixture for mounting in a surface (panel), including a body in which a lamp can be mounted, the body including a continuous, rigid side wall, and a flange that extends at least partially around the side wall and a first body of material, and where the light fitting is arranged to be installed in a surface such that the first body of material lies adjacent to the surface, and between the flange and the surface where the first body of material is arranged to inhibit the propagation of fire in an area when in use between the flange and an adjacent surface, and where the body further includes at least one ventilation hole and a second body of material which is arranged to, in use, inhibit the propagation of fire between the inside and the outside of the light fitting via the at least one ventilation hole, and where the first body of material is heat-activatable and the second body of material is heat-activatable.
Ved normal bruk tillater ventilasjonshullene operasjon av lampen uten for overoppheting. I et tilfelle med brann på en side av flaten så vil det første materiallegemet hemme forplantning av brann gjennom åpningen mellom lysarmaturen og flaten hvori lysarmaturen er montert. Det andre materiallegemet vil hemme forplantning av brann gjennom det minst ene ventilasjonshullet. In normal use, the ventilation holes allow operation of the lamp without overheating. In a case of fire on one side of the surface, the first body of material will inhibit the propagation of fire through the opening between the light fixture and the surface in which the light fixture is mounted. The second body of material will inhibit the propagation of fire through the at least one ventilation hole.
Lysarmaturlegemet kan innbefatte et hvilket som helst stivt, varmebestandig materiale som vil fremgå for fagmannen innen området. Egnede materialer inkluderer, men er ikke begrenset til, ulike metaller, spesielt stål. The light fixture body may include any rigid, heat-resistant material that will be apparent to the person skilled in the art. Suitable materials include, but are not limited to, various metals, especially steel.
Fortrinnsvis ekspanderer det første materiallegemet ved oppvarming. Aller helst er det første materiallegemet svellende (intumescent). Lysarmaturen kan således bli levert med det første materiallegemet i en enkel og/eller kompakt form for enkel installasjon. I tilfelle brann vil det første materiallegemet bli aktivert til å danne et arrangement som er effektivt i å hemme forplantning av brann. Preferably, the first body of material expands upon heating. Most preferably, the first body of material is swelling (intumescent). The light fixture can thus be delivered with the first material body in a simple and/or compact form for easy installation. In the event of a fire, the first body of material will be activated to form an arrangement effective in inhibiting the spread of fire.
I en foretrukket utførelsesform blir det andre materiallegemet aktivert ved hjelp av varme til å danne et arrangement der det hemmer forplantning av brann via det mest ene ventilsasjonshullet. Fortrinnsvis ekspanderer det andre materiallegemet ved oppvarming. Aller helst er det andre materiallegemet svellende. Dekslet kan således leveres med det andre materiallegemet på en enkel og/eller kompakt form for enkel installasjon. I tilfelle brann vil det andre materiallegemet bli aktivert til å danne et arrangement som er effektivt i å hemme beplantning av brannen. In a preferred embodiment, the second body of material is activated by means of heat to form an arrangement where it inhibits the propagation of fire via the at most one ventilation hole. Preferably, the second body of material expands upon heating. Most preferably, the second body of material is swelling. The cover can thus be supplied with the second material body in a simple and/or compact form for easy installation. In the event of a fire, the second body of material will be activated to form an arrangement effective in inhibiting the propagation of the fire.
I en foretrukket utførelsesform har det første materiallegemet og det andre materiallegemet de samme egenskaper. In a preferred embodiment, the first body of material and the second body of material have the same properties.
Egnede svellende materialer inkluder, men er ikke begrenset til, ekspanderbar granulat-eller pulvergrafitt, eller karbongranulat, benyttet til steinullfiber, termoherdende epoksy, polymerbasematerialer og glassfiber, blant andre, slik det enkelt vil fremgå for fagmannen innen området. Suitable swelling materials include, but are not limited to, expandable granulate or powder graphite, or carbon granulate, used for rock wool fiber, thermosetting epoxy, polymer base materials and fiberglass, among others, as will be readily apparent to those skilled in the art.
I en foretrukket utførelsesform er lysarmaturen utstyrt med et deksel for å forhindre fuktinntrengning fra rommet og til innsiden av lysarmaturen, hvilket deksel inneholder en i det minste delvis gjennomskinnelig del for å muliggjøre belysning av rommet som lysarmaturen er montert i. Dekslet gjør det mulig for lysarmaturen å bli benyttet i et miljø med relativt høy luftfuktighet, slik som i et baderom eller kjøkken, uten fare for at fuktigheten påvirke de elektriske koblinger i lampen. In a preferred embodiment, the light fixture is provided with a cover to prevent moisture ingress from the room and into the inside of the light fixture, which cover contains an at least partially translucent part to enable illumination of the room in which the light fixture is installed. The cover enables the light fixture to be used in an environment with relatively high humidity, such as in a bathroom or kitchen, without the risk of the humidity affecting the electrical connections in the lamp.
I en foretrukket utførelsesform innbefatter lysarmaturlegemet en stiv, varmeledende substans, og det andre materiallegemet er festet til en ytre overflate av denne. Fortrinnsvis er det andre materiallegemet utstyrt med en ventilasjonshull som tilsvarer hvert av det minst ene ventilasjonshullet i lysarmaturlegemet. Fortrinnsvis er et ytterligere lag med varmeledende substans festet til den ytre overflaten av det andre materiallegemet. Enda heller er det ytterligere laget med varmeledende substans utstyrt med et ventilasjonshull som tilsvarer hvert av det minst ene ventilasjonshullet i lysarmaturlegemet og det andre materiallegemet. Det andre materiallegemet er således beskyttet fra skade ved å være innklemt mellom de to varmeledende lagene. Videre forhindrer lagene på hver side av det andre materiallegemet lokal varmeoppbygging (f.eks. fra lampen) som kan aktivere det andre materiallegemet unødvendig. Det andre materiallegemet vil således bli aktivert for å blokkere ventilasjonshullene bare når omgivelsestemperaturen når det påkrevde nivå, slik det vil være tilfelle ved en brann. In a preferred embodiment, the light fixture body includes a rigid, heat-conducting substance, and the second material body is attached to an outer surface thereof. Preferably, the second material body is equipped with a ventilation hole which corresponds to each of the at least one ventilation hole in the light fixture body. Preferably, a further layer of heat-conducting substance is attached to the outer surface of the second material body. Even better, the further layer of heat-conducting substance is equipped with a ventilation hole corresponding to each of the at least one ventilation hole in the light fixture body and the other material body. The second body of material is thus protected from damage by being sandwiched between the two heat-conducting layers. Furthermore, the layers on either side of the second body of material prevent local heat build-up (eg from the lamp) which could activate the second body of material unnecessarily. The second body of material will thus be activated to block the ventilation holes only when the ambient temperature reaches the required level, as would be the case in a fire.
I en foretrukket utførelsesform er lysarmaturen festet mot flaten hvori den er montert ved hjelp av et elastisk deformerbart middel som vinger flensen mot panelet. Fortrinnsvis innbefatter det elastisk deformerbare midlet fjærklemmer festet til hver side av lysarmaturhuset. Enda heller er festepunktene for fjærklemmene forsenket inn i siden av lysarmaturhuset. Dette minimaliserer størrelsen til åpningen som kreves for installasjon, og reduserer dermed tapet av brannsikkerhet forårsaket av installasjon av lysarmaturen og reduserer således avhengigheten av de brannhemmende trekk ved selve lysarmaturen. In a preferred embodiment, the light fitting is fixed to the surface on which it is mounted by means of an elastically deformable means which wings the flange towards the panel. Preferably, the elastically deformable means includes spring clips attached to each side of the light fixture housing. Even better, the attachment points for the spring clamps are recessed into the side of the light fixture housing. This minimizes the size of the opening required for installation, thereby reducing the loss of fire safety caused by installation of the light fixture and thus reducing reliance on the fire-retardant features of the light fixture itself.
I en foretrukken utførelsesform har lysarmaturlegemet en dobbelveggkonstruksjon med et lag varmeisolasjon mellom de to veggene. Fortrinnsvis er varmeisolasjonen luft. Dette minimaliserer varmeoverføringen gjennom lysarmaturen fra det brennende rommet nedenfor, og reduserer dermed sannsynligheten for antennelese over flaten. In a preferred embodiment, the light fixture body has a double-wall construction with a layer of thermal insulation between the two walls. Preferably, the thermal insulation is air. This minimizes heat transfer through the light fitting from the burning room below, and thus reduces the likelihood of aerial reading above the surface.
En spesifikk utførelsesform av den foreliggende oppfinnelse vil nå bli beskrevet med henvisning til den medfølgende tegningen, som er et snitt gjennom en lysarmatur i henhold til den foreliggende oppfinnelse. A specific embodiment of the present invention will now be described with reference to the accompanying drawing, which is a section through a light fitting according to the present invention.
En lysarmatur 10 er montert i en åpning 11 i en innertaksflate 12. Lysarmaturen innbefatter et hus eller legeme 20, en lampe 12, og fjærklemmer 23. A light fixture 10 is mounted in an opening 11 in an inner ceiling surface 12. The light fixture includes a housing or body 20, a lamp 12, and spring clamps 23.
Legemet 20 til lysarmaturen innbefatter en i det vesentlige sylindrisk, kontinuerlig stiv sidevegg 25 som strekker seg for å danne en ringformet flens 26 som rager ut fra sideveggen i en åpen ende av det sylindriske legemet. Sideveggsmaterialet strekker seg videre for å danne en leppe 26a rundt den periferiske kanten av flensen 26. Den stive sideveggen 25, flensen 26 og leppen 26a til legemet 20 kan være konstruert av et hvilket som helst varmetolerant materiale som er innlysende for fagmannen innen området, slik som f.eks. 1 mm tykt stål. Montert på overflaten av flensen 26 rettet mot resten av legemet, (dvs. overflaten som ved bruk vil ligge tilstøtende flaten 12) er en ringformet silikongummipakning 28 som strekker seg rundt hele omkretsen av den stive sideveggen 25 og i det vesentlige fyller området mellom sideveggen 25 og leppen 26a. Et hvilket som helst annet egnet elastisk materiale kunne benyttes i pakningen. The body 20 of the light fixture includes a substantially cylindrical, continuous rigid side wall 25 which extends to form an annular flange 26 which projects from the side wall at an open end of the cylindrical body. The sidewall material extends further to form a lip 26a around the peripheral edge of the flange 26. The rigid sidewall 25, flange 26 and lip 26a of the body 20 may be constructed of any heat tolerant material apparent to those skilled in the art, such as like for example. 1 mm thick steel. Mounted on the surface of the flange 26 facing the rest of the body, (i.e. the surface which in use will lie adjacent to the surface 12) is an annular silicone rubber gasket 28 which extends around the entire circumference of the rigid side wall 25 and essentially fills the area between the side walls 25 and the lip 26a. Any other suitable elastic material could be used in the packing.
Silikongummipakningen 28 er avtrappet med et tykkere område ved en ytterkant og et tynner område ved sin innerkant. Det tykkere området er litt tykkere en høyden av leppen 26a strekker seg fra overflaten av flensen på hvilken pakningen 28 er montert. På det tynnere området av pakningen er det montert en ringformet paktning 27 av svellende materiale. Denne pakningen er litt tynnere enn høyden av den tykkere delen av silikongummipakningen 28, slik at den tykkere delen av silikongummipakningen rager over den svellende pakningen 27. The silicone rubber gasket 28 is tapered with a thicker area at an outer edge and a thinner area at its inner edge. The thicker area is slightly thicker than the height of the lip 26a extending from the surface of the flange on which the gasket 28 is mounted. On the thinner area of the gasket, an annular gasket 27 of swelling material is mounted. This gasket is slightly thinner than the height of the thicker part of the silicone rubber gasket 28, so that the thicker part of the silicone rubber gasket protrudes above the swelling gasket 27.
Et hvilket som helst svellende materiale kan benyttes i den svellende pakningen 27, slik det enkelt vil fremgå for fagmannen innen området, inkludert, men ikke begrenset til, ekspanderbar granulat- eller pulvergrafikk, eller karbongranulat, benyttet i steinullfiber, varmeherdende epoksy polymerbasematerialer og glassfiber, blant andre, slik det enkelt vil fremgå for fagmannen innen området. Any intumescent material may be used in the intumescent packing 27, as will be readily apparent to those skilled in the art, including, but not limited to, expandable granule or powder graphics, or carbon granules, used in rock wool fiber, thermosetting epoxy polymer base materials and fiberglass, among others, as will be readily apparent to the person skilled in the field.
Silikongummipakningen 28 har et antall funksjoner. Den hemmer forplantningen av varme fra lysarmaturen 10 til innertaksflaten 12 under normal bruk, og beskytter dermed innertaksflaten 12 fra varmeskade. Siden den tykkere delen av pakningen 28 vil kontakte en inntertaksflate hvori armaturen er installert, vil den danne i det minste en delvis tetting ved innertaksflaten som reduserer trekk og passasje av støv og skitt mellom flensen 26 og flaten, og dens elastiske egenskap vil også hemme overføringen av vibrasjoner mellom lysarmaturen 10 og innertaksflaten 12, og dermed hjelpe til å minimalisere forplantningen av støy inne i bygningen. Videre kan silikongummipakningen 28 danne en tetting mellom det svellende materialet 27 og den ytre leppen 26a av flensen 26, og tjener til å plassere den svellende pakningen 27 på flensen 26. The silicone rubber gasket 28 has a number of functions. It inhibits the propagation of heat from the light fixture 10 to the inner ceiling surface 12 during normal use, and thus protects the inner ceiling surface 12 from heat damage. Since the thicker part of the gasket 28 will contact a ceiling surface in which the fixture is installed, it will form at least a partial seal at the ceiling surface which reduces draft and passage of dust and dirt between the flange 26 and the surface, and its elastic property will also inhibit transfer of vibrations between the light fixture 10 and the ceiling surface 12, thus helping to minimize the propagation of noise inside the building. Furthermore, the silicone rubber gasket 28 can form a seal between the swelling material 27 and the outer lip 26a of the flange 26, and serves to place the swelling gasket 27 on the flange 26.
I tilfelle en vesentlig økning av temperaturen (f.eks. i tilfelle brann), vil silikonpakningen 28 smelte eller på annen måte forringes, å tillate varme å nå det svellende materialet 27, som da vil ekspandere for å tilveiebringe en brannsikker tetting mellom flensen 26 og flaten 12. In the event of a significant increase in temperature (e.g. in the event of a fire), the silicone gasket 28 will melt or otherwise deteriorate, allowing heat to reach the swelling material 27, which will then expand to provide a fireproof seal between the flange 26 and the surface 12.
Fjærklemmene 23 er montert i forsenkninger 40 i sideveggen 25 til lysarmaturen, og tvinger lysarmaturen mot innertaksflaten 12 for sikkert å montere lysarmaturen på plass. Det er foretrukket at fjærklemmene 23 er av høykvalitetsstål, slik som herdet stål, som kan motstå temperaturer på minst 400-500°C uten vesentlig tap av sine mekaniske egenskaper. Det er kjent at konvensjonelle fjærklemmer i konvensjonelle lysarmaturer kan svikte under en brann, slik at hele lysarmaturen kan falle vekk fra inntertaksflaten. The spring clamps 23 are mounted in recesses 40 in the side wall 25 of the light fixture, and force the light fixture against the inner ceiling surface 12 to securely mount the light fixture in place. It is preferred that the spring clamps 23 are of high-quality steel, such as hardened steel, which can withstand temperatures of at least 400-500°C without significant loss of its mechanical properties. It is known that conventional spring clamps in conventional light fixtures can fail during a fire, so that the entire light fixture can fall away from the ceiling surface.
Den sylindriske sideveggen 25 til lysarmaturen er lukket i den motsatte enden av flesen 26 for å danne toppoverflate 30. Et andre lag av svellende materiale 31 er festet til utsiden av toppoverflaten 30 og holdt på plass av en stålplate 32. Fagmannen vil forstå at et hvilket som helst stivt, varmeledende materiale kunne benyttes i stedet for stål. Stålplaten 32 er vist festet til toppoverflaten 30 av lysarmaturen ved hjelp av nagler, men fagmannen vil forstå at hvilke som helst egnede brannsikre festemidler kunne benyttes. En rekke ventilasjonshull 34 passerer gjennom toppoverflaten 30, det svellende materialet 31 og stålplaten 32. The cylindrical side wall 25 of the light fixture is closed at the opposite end of the fleece 26 to form the top surface 30. A second layer of intumescent material 31 is attached to the outside of the top surface 30 and held in place by a steel plate 32. Those skilled in the art will appreciate that any any rigid, heat-conducting material could be used instead of steel. The steel plate 32 is shown attached to the top surface 30 of the light fixture by means of rivets, but those skilled in the art will understand that any suitable fireproof fasteners could be used. A series of ventilation holes 34 pass through the top surface 30, the swelling material 31 and the steel plate 32.
I tilfelle en vesentlig tempertaturøkning (f.eks. i tilfelle brann), vil det svellende materiale 31 ekspandere for å tilveiebringe en brannsikker tetting over ventilasjonshullene 34. In the event of a significant increase in temperature (e.g. in the event of a fire), the swelling material 31 will expand to provide a fireproof seal over the ventilation holes 34.
Claims (18)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0501607A GB2422191B (en) | 2005-01-27 | 2005-01-27 | Fire-resistant lighting fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20060452L NO20060452L (en) | 2006-07-28 |
| NO328171B1 true NO328171B1 (en) | 2009-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20060452A NO328171B1 (en) | 2005-01-27 | 2006-01-27 | Fireproof light fixture |
Country Status (7)
| Country | Link |
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| EP (1) | EP1688663B1 (en) |
| AT (1) | ATE427454T1 (en) |
| DE (1) | DE602006005965D1 (en) |
| DK (1) | DK1688663T3 (en) |
| ES (1) | ES2324956T3 (en) |
| GB (1) | GB2422191B (en) |
| NO (1) | NO328171B1 (en) |
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-
2005
- 2005-01-27 GB GB0501607A patent/GB2422191B/en active Active
-
2006
- 2006-01-26 DE DE602006005965T patent/DE602006005965D1/en active Active
- 2006-01-26 AT AT06250433T patent/ATE427454T1/en not_active IP Right Cessation
- 2006-01-26 ES ES06250433T patent/ES2324956T3/en active Active
- 2006-01-26 EP EP06250433A patent/EP1688663B1/en active Active
- 2006-01-26 DK DK06250433T patent/DK1688663T3/en active
- 2006-01-27 NO NO20060452A patent/NO328171B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE427454T1 (en) | 2009-04-15 |
| GB0501607D0 (en) | 2005-03-02 |
| GB2422191A (en) | 2006-07-19 |
| NO20060452L (en) | 2006-07-28 |
| DK1688663T3 (en) | 2009-07-20 |
| ES2324956T3 (en) | 2009-08-20 |
| DE602006005965D1 (en) | 2009-05-14 |
| EP1688663A3 (en) | 2006-08-23 |
| EP1688663B1 (en) | 2009-04-01 |
| GB2422191B (en) | 2007-01-10 |
| EP1688663A2 (en) | 2006-08-09 |
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| MM1K | Lapsed by not paying the annual fees |