CA2013227C - System for the prevention of fire, water or (flue) gas and the like from propagating along cables - Google Patents
System for the prevention of fire, water or (flue) gas and the like from propagating along cables Download PDFInfo
- Publication number
- CA2013227C CA2013227C CA 2013227 CA2013227A CA2013227C CA 2013227 C CA2013227 C CA 2013227C CA 2013227 CA2013227 CA 2013227 CA 2013227 A CA2013227 A CA 2013227A CA 2013227 C CA2013227 C CA 2013227C
- Authority
- CA
- Canada
- Prior art keywords
- chute
- wall
- cables
- lead
- safety
- 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.)
- Expired - Lifetime
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
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
-
- 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
-
- 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
- H02G3/0437—Channels
Abstract
A system for the prevention of fire, water or (flue) gas and the like from propagating along cables, which system.is provided with a safety chute which can be mounted along the cables and with at least one sealing body substantially made of a fire-resisting material, which sealing body can be detachably installed slung at least a part of the inner wall of the safety chute.
Description
CSD zriternational S.V. , Opmeer, the Netherlands ~' ~ ~ ~' ~ ~ ~~
sYSTEM FE7R TFi'E PREVENTION OF PIRB, wz~x~ ~R t~xar~) c~,s .ANn TAE x.xxs ~ttoM ~topAC.~TIrrc uaox~ ~s~s The invention relates to a system for the prevention of fire, water or (flue) gas and the like from propagating along cables as well as to a safety chute arid a sealing body manifestly suited to be used in~the system. Such cables rnay, for instance, be electric cables.
A system in which cables have been disposed in a lead-through chute is generally known. The known system is formed by coated mineral-wool plates which may be mounted around the lead-through chute in, for example, a lead-in aperture in a wall.
One drawback of the known system is that in actual practice it is often very difficult to mount these mineral-wool plates from the outside in the lead-in aperture, around the lead-through chute and round about the cables passed through the said aperture an account of their poor accessibility from the outside. A further drawback is that when additional new cables are inserted into existing lead-throughs provided with mineral-wool plates, considerable damage may be inflicted upon these plates. Moreover, the known system has the disadvantage that it can hardly, if at all, withstand mechanical loads, so that in the event of a fire a jet of fire-fighting water can easily thrust the coated mineral-weal plates cut of the lead-in aperture.
It is an object of the present invention to provide a simple and aesthetically justified system for the prevention of fire, water or (flue) gas and the like from propagating along sables, which is easy to install for any size of lead--in aperture, which is capable of withstanding high mechanical loads and in which additional new cables can readily and simply be introduced into existing Iead-throughs.
sYSTEM FE7R TFi'E PREVENTION OF PIRB, wz~x~ ~R t~xar~) c~,s .ANn TAE x.xxs ~ttoM ~topAC.~TIrrc uaox~ ~s~s The invention relates to a system for the prevention of fire, water or (flue) gas and the like from propagating along cables as well as to a safety chute arid a sealing body manifestly suited to be used in~the system. Such cables rnay, for instance, be electric cables.
A system in which cables have been disposed in a lead-through chute is generally known. The known system is formed by coated mineral-wool plates which may be mounted around the lead-through chute in, for example, a lead-in aperture in a wall.
One drawback of the known system is that in actual practice it is often very difficult to mount these mineral-wool plates from the outside in the lead-in aperture, around the lead-through chute and round about the cables passed through the said aperture an account of their poor accessibility from the outside. A further drawback is that when additional new cables are inserted into existing lead-throughs provided with mineral-wool plates, considerable damage may be inflicted upon these plates. Moreover, the known system has the disadvantage that it can hardly, if at all, withstand mechanical loads, so that in the event of a fire a jet of fire-fighting water can easily thrust the coated mineral-weal plates cut of the lead-in aperture.
It is an object of the present invention to provide a simple and aesthetically justified system for the prevention of fire, water or (flue) gas and the like from propagating along sables, which is easy to install for any size of lead--in aperture, which is capable of withstanding high mechanical loads and in which additional new cables can readily and simply be introduced into existing Iead-throughs.
Generally speaking the above object is met by the present invention which provides a safety chute system for the prevention of fire, water, or gas from propagating along cables contained in an open top channel-shaped lead-through chute passing through a wall, the safety chute system comprising (a) an open top channel-shaped housing positioned in spaced surrounding relation with the lead-through chute externally of the wall and with the open top of the lead-through chute facing outwardly of the open top of the safety chute; (b) at least one sealing body of fire resisting material removably positioned in the space between the two chutes; and (c) cover means for covering the open top of the safety chute to fully enclose the lead-through chute therein.
One embodiment of a system according to the invention is characterized in that the sealing body can be installed along at least a part of the inner wall of the safety chute, whereby an air insulation clearance is allowed between the sealing body and the said part of the inner wall of the safety chute by means of spacers provided on the sealing body. The spacers may consist of, for instance, ribs or studs. The air insulation clearance prevents a filler present in the safety chute from being readily damaged by fire owing to the heat thereby generated.
Another embodiment of a system according to the invention is characterized in that the sealing body contains at least one inner cavity. This cavity also forms an air insulation clearance for the protection, in the event of a fire, of a filler present in the safety chute.
A further embodiment of a system according to the invention is characterized in that the system is provided with a filler substantially made of a fire-resisting material which can be applied in the safety chute. This filler serves to impart sufficient "density" to the interior of the safety chute such that fire, water or (flue) gas cannot propagate along the cablars through the safety chute.
A further embodiment of a system according to the invan~tion is characterized in that the filler substantially consists of at least one spongy body which may expand upon contact with, for instance, fire, water or (flue) gas. It is this expansion which insures that the interior of the safety chute retains sufficient "density"
also in the event. of a fire so as to prevent fire from propagating along the cables through the safety chute.
A further embodiment of a system according to the invention is characterized in that the filler contains a fire-resisting cement.
A further embodiment of a system according to the 13 invention is characterized in that the safety chute is substantially rectangular in section, that at least four sealing bodies can be detachably installed along corresponding sections of the inner wall of the safety chute, and that the filler can be applied between, below and above each layer of cables passed through the Iead-through chute.
A further embodiment of a system according to the invention in which the cables are laid in a lead-through chute and passed through a wall is characterized in that the safety chute can be installed on at least one side of the wall with the aid of a flange of the safety chute that is substantially perpendicular to the longitudinal direction of the cables, and that the safety chute comprises a detachable cover plate.
A further embodiment of a system according to the invention in which the cables are laid in a lead-through chute and passed through a floor/ceiling is characterized in that the safety chute can be installed on at least one side of the floor/ceiling with the aid of a flange of the iJ ~ ~. ~I' ~ FJ
safety Chute that is substantially perpendicular to the longitudinal direction of the cables, and that the safety chute when fully installed is sealed off, by a closing device. This closing device is formed by, for instance, a separate plate of fi~.ler material.
~ further embodiment of a system according to the invention is characterized in that the system comprises a gaakat which may be inserted between the flange and the wall/floor/ceiling.
A further embodiment og a system according to the invention in which cables are laid in a lead-through chute as part of a cable routing system is characterized in that the safety chute can be attached to the Lead-through chute by means of a detachable cover plate of the safety chute.
It is to be observed that the system according to the invention affords protection to cables accommodated in, for instance, a lead-through chute, not only against fire, but also against harmful gases or water and the like, because the waterproof, gasproof and flameproof sealing afforded by the system prevents fire, gases or water from propagating along the lead-through chute.
fihe invention will now be further elucidated with reference to the accompanying figures, in which Figures 1 and 2 depict one embodiment, Figure 3 shows a second embodiment and Figures 4 and 5 represent a third embodiment of the system according to they invention, whilst Figure 6 is a perspective view of a sealing body according to the invention.
Figure 1 is an exploded view of one embodiment of a system according to the invention, in which cables 2 inserted into a lead-through chute 1 are passed through a lead-in aperture in a wall 3. A safety chute 4 mounted along the lead-through chute 1 comprises a flange 5 that is perpendicular to the longitudinal direction of the cables 2, by means of which the safety chute 4 can be attached to one side of the wall 3 with a gasket 6 interposed. The safety chute 4, which is substantially rectangular in section, has all its inner walls provided with sealing bodies '7 made of a firs-resisting material, of which there are only two visible in thin figure. The interior of the safety chute 4 conta~ing a filler 8 applied between, below and above the cables 2 in the form of spongy bodies also made of a fire-resisting material. Furthermore the 1o safety chutes 4 comprises a detachable cover plate 9 and a detachable flanged section 10, both of which can be attached to a flange 13 of the safety chute 4 running parallel to the longitudinal direction of the cables 2.
Figure 2 shows the embodiment of the system of Figure 1 fully mounted.
Figure 3 represents an embodiment of a system according to the invention fully mounted, in which cables 2 inserted into a lead-through chute 2 are passed through a lead-in aperture in a floor/ceiling 11. In the assembled state, a safety chute 4 is sealed off at the top by a closing device in the form of a separate plate 12 of filler material, so that for this application it is not necessary to use the detachable cover plate 9 and the detachable flanged seot~.on 10 of Figure 1. The component parts of the system shown in Figure 3 which correspond with those of Figure 1 have been ind~.cated with the same reference nuatarala.
Figure 4 is a partly exploded view of an embodiment. of a system according to the invention in which cables 2 have been disposed in a lead-through chute 1 as part of a cable routing plan. A safety chute 4 is attached with its flange 13 to the lead-through chute i by means of a detachable cover plate 9. This cover plate 9 is here composed of two cover parts 9' arid two suspension straps 9°°. Tile cover parts 9' lightly compress the cables 2 and the filler 8.
zf the cables 2 have been laid in a highly irregular s pattern w say, cables with large and small diameter side by side - voids between these cables 2 may, if necessary, be filled up wittx a fire-resisting cement. Component parts represented in this figures which correspond with those of Figure 1 bear the same reference numerals.
Figure 5 shows the system of Figure 4 when fully mounted.
It is worth noting that the sealing bodies 7 represented in Figures l, 4 and 5 are provided with spacers in the , .
form of ribs 14, so that these sealing bodies 7 Can be installed along the inner walls of the safety chute 4, making allowances for an air insulation clearance. As a result, the filler 2 will be less liable to damage in the event of a fire by the heat thereby generated. Figure 6 is a perspective view of such a sealing body 7 containing several inner cavities 15, here indicated by dashed lines.
One embodiment of a system according to the invention is characterized in that the sealing body can be installed along at least a part of the inner wall of the safety chute, whereby an air insulation clearance is allowed between the sealing body and the said part of the inner wall of the safety chute by means of spacers provided on the sealing body. The spacers may consist of, for instance, ribs or studs. The air insulation clearance prevents a filler present in the safety chute from being readily damaged by fire owing to the heat thereby generated.
Another embodiment of a system according to the invention is characterized in that the sealing body contains at least one inner cavity. This cavity also forms an air insulation clearance for the protection, in the event of a fire, of a filler present in the safety chute.
A further embodiment of a system according to the invention is characterized in that the system is provided with a filler substantially made of a fire-resisting material which can be applied in the safety chute. This filler serves to impart sufficient "density" to the interior of the safety chute such that fire, water or (flue) gas cannot propagate along the cablars through the safety chute.
A further embodiment of a system according to the invan~tion is characterized in that the filler substantially consists of at least one spongy body which may expand upon contact with, for instance, fire, water or (flue) gas. It is this expansion which insures that the interior of the safety chute retains sufficient "density"
also in the event. of a fire so as to prevent fire from propagating along the cables through the safety chute.
A further embodiment of a system according to the invention is characterized in that the filler contains a fire-resisting cement.
A further embodiment of a system according to the 13 invention is characterized in that the safety chute is substantially rectangular in section, that at least four sealing bodies can be detachably installed along corresponding sections of the inner wall of the safety chute, and that the filler can be applied between, below and above each layer of cables passed through the Iead-through chute.
A further embodiment of a system according to the invention in which the cables are laid in a lead-through chute and passed through a wall is characterized in that the safety chute can be installed on at least one side of the wall with the aid of a flange of the safety chute that is substantially perpendicular to the longitudinal direction of the cables, and that the safety chute comprises a detachable cover plate.
A further embodiment of a system according to the invention in which the cables are laid in a lead-through chute and passed through a floor/ceiling is characterized in that the safety chute can be installed on at least one side of the floor/ceiling with the aid of a flange of the iJ ~ ~. ~I' ~ FJ
safety Chute that is substantially perpendicular to the longitudinal direction of the cables, and that the safety chute when fully installed is sealed off, by a closing device. This closing device is formed by, for instance, a separate plate of fi~.ler material.
~ further embodiment of a system according to the invention is characterized in that the system comprises a gaakat which may be inserted between the flange and the wall/floor/ceiling.
A further embodiment og a system according to the invention in which cables are laid in a lead-through chute as part of a cable routing system is characterized in that the safety chute can be attached to the Lead-through chute by means of a detachable cover plate of the safety chute.
It is to be observed that the system according to the invention affords protection to cables accommodated in, for instance, a lead-through chute, not only against fire, but also against harmful gases or water and the like, because the waterproof, gasproof and flameproof sealing afforded by the system prevents fire, gases or water from propagating along the lead-through chute.
fihe invention will now be further elucidated with reference to the accompanying figures, in which Figures 1 and 2 depict one embodiment, Figure 3 shows a second embodiment and Figures 4 and 5 represent a third embodiment of the system according to they invention, whilst Figure 6 is a perspective view of a sealing body according to the invention.
Figure 1 is an exploded view of one embodiment of a system according to the invention, in which cables 2 inserted into a lead-through chute 1 are passed through a lead-in aperture in a wall 3. A safety chute 4 mounted along the lead-through chute 1 comprises a flange 5 that is perpendicular to the longitudinal direction of the cables 2, by means of which the safety chute 4 can be attached to one side of the wall 3 with a gasket 6 interposed. The safety chute 4, which is substantially rectangular in section, has all its inner walls provided with sealing bodies '7 made of a firs-resisting material, of which there are only two visible in thin figure. The interior of the safety chute 4 conta~ing a filler 8 applied between, below and above the cables 2 in the form of spongy bodies also made of a fire-resisting material. Furthermore the 1o safety chutes 4 comprises a detachable cover plate 9 and a detachable flanged section 10, both of which can be attached to a flange 13 of the safety chute 4 running parallel to the longitudinal direction of the cables 2.
Figure 2 shows the embodiment of the system of Figure 1 fully mounted.
Figure 3 represents an embodiment of a system according to the invention fully mounted, in which cables 2 inserted into a lead-through chute 2 are passed through a lead-in aperture in a floor/ceiling 11. In the assembled state, a safety chute 4 is sealed off at the top by a closing device in the form of a separate plate 12 of filler material, so that for this application it is not necessary to use the detachable cover plate 9 and the detachable flanged seot~.on 10 of Figure 1. The component parts of the system shown in Figure 3 which correspond with those of Figure 1 have been ind~.cated with the same reference nuatarala.
Figure 4 is a partly exploded view of an embodiment. of a system according to the invention in which cables 2 have been disposed in a lead-through chute 1 as part of a cable routing plan. A safety chute 4 is attached with its flange 13 to the lead-through chute i by means of a detachable cover plate 9. This cover plate 9 is here composed of two cover parts 9' arid two suspension straps 9°°. Tile cover parts 9' lightly compress the cables 2 and the filler 8.
zf the cables 2 have been laid in a highly irregular s pattern w say, cables with large and small diameter side by side - voids between these cables 2 may, if necessary, be filled up wittx a fire-resisting cement. Component parts represented in this figures which correspond with those of Figure 1 bear the same reference numerals.
Figure 5 shows the system of Figure 4 when fully mounted.
It is worth noting that the sealing bodies 7 represented in Figures l, 4 and 5 are provided with spacers in the , .
form of ribs 14, so that these sealing bodies 7 Can be installed along the inner walls of the safety chute 4, making allowances for an air insulation clearance. As a result, the filler 2 will be less liable to damage in the event of a fire by the heat thereby generated. Figure 6 is a perspective view of such a sealing body 7 containing several inner cavities 15, here indicated by dashed lines.
Claims (12)
1. A safety chute system for the prevention of fire, water, or gas from propagating along cables contained in an open top channel-shaped lead-through chute passing through a wall, said safety chute system comprising:
(a) an open top channel-shaped housing positioned in spaced surrounding relation with said lead-through chute externally of said wall and with the open top of the lead-through chute facing outwardly of the open top of the safety chute;
(b) at least one sealing body of fire resisting material removably positioned in the space between the two chutes; and (c) cover means for covering the open top of the safety chute to fully enclose the lead-through chute therein.
(a) an open top channel-shaped housing positioned in spaced surrounding relation with said lead-through chute externally of said wall and with the open top of the lead-through chute facing outwardly of the open top of the safety chute;
(b) at least one sealing body of fire resisting material removably positioned in the space between the two chutes; and (c) cover means for covering the open top of the safety chute to fully enclose the lead-through chute therein.
2. A system according to claim 1, characterized in that said removable sealing body includes a section disposed between the cover means and the open top of the lead-through chute.
3. A system according to claim 1, characterized in that the sealing body includes spacers located along at least a part of the inner wall of the safety chute, whereby an air insulation clearance is allowed between the sealing body and the said part of the inner wall of the safety chute.
4. A system according to claim 3, characterized in the sealing body contains at least one inner cavity.
5. A system according to claim 3, characterized in that the system is provided with a filler substantially made of a fire-resisting material, said filler being disposed in the safety chute between said cables and said sealing body and of sufficient density to prevent propagation of fire, water or gas along said cables.
6. A system according to claim 5, characterized in that the filler substantially consists of at least one spongy body which expands upon contact with fire, water or gas.
7. A system according to claim 6, characterized in that the filler contains a fire-resisting cement.
8. A system according to claim 7, characterized in that the safety chute is substantially rectangular in section, that at least four sealing bodies are detachably installed along corresponding sections of the inner wall of the safety chute, and that the filler is disposed between, below and above each layer of cables passed through the lead-through chute.
9. A system according to any one of claims 2-8, in which the cables are laid in the lead-through chute and passed through the wall, characterized in that the safety chute is installed on at least one side of the wall and includes a flange extending substantially perpendicular to the longitudinal direction of the cables for attachment to the surface of the wall, and that the safety chute cover means comprises a detachable cover plate.
10. A system according to any one of claims 2-8, in which the cables are laid in the lead-through chute and passed through the wall characterized in that the wall is a floor and extends at an angle to a side wall, the safety chute is installed on at least one side of the floor and includes a flange extending substantially perpendicular to the longitudinal direction of the cables for attachment to the surface of the floor, and that the safety chute cover means is defined by said wall.
11. A system according to either one of claims 9 and 10, characterized in that the system comprises a gasket inserted between the flange and the wall.
12. A system according to any one of claims 2-8, in which the cables are laid in a lead-through chute as part of a cable routing plan, characterized in that the safety chute is attached to the lead-through chute independently of said wall by means of the detachable cover means of the safety chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2013227 CA2013227C (en) | 1990-03-28 | 1990-03-28 | System for the prevention of fire, water or (flue) gas and the like from propagating along cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2013227 CA2013227C (en) | 1990-03-28 | 1990-03-28 | System for the prevention of fire, water or (flue) gas and the like from propagating along cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2013227A1 CA2013227A1 (en) | 1991-09-28 |
| CA2013227C true CA2013227C (en) | 2000-07-18 |
Family
ID=4144620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2013227 Expired - Lifetime CA2013227C (en) | 1990-03-28 | 1990-03-28 | System for the prevention of fire, water or (flue) gas and the like from propagating along cables |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2013227C (en) |
-
1990
- 1990-03-28 CA CA 2013227 patent/CA2013227C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2013227A1 (en) | 1991-09-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |