NL1019909C1 - Fireproof system for cable or pipe lead through in wall, has fireproof sleeves spirally wound around e.g. cables - Google Patents

Abstract

The cables (3) etc. are protected by spirally winding fireproof sleeves (4) around them. An Independent claim is also included for passing e.g. cables through an opening in a wall, involving spirally winding fireproof sleeves around them after they have been passed through the opening.

Description

5 • i

FIRE-RESISTANT SYSTEM AND METHOD FOR ENTRYING AT LEAST ONE CABLE, PIPE OR LIKE THROUGH AN OPENING OF A WALL

The invention relates to a fire-resistant system for feeding at least one cable, tube or the like through an opening of a wall. The invention also refers to a method for passing at least one cable, tube or the like through an opening of a wall, with the aid of this system. For the sake of simplicity, "wall" or "wall" will hereinafter be referred to for the sake of simplicity, while this also includes other partitions, such as a bulkhead, a sheeting, etc.

Such a system and such a method are known from European patent publication no. 0 534 563 by the same Applicant. The feed-through system described herein consists of a steel feed-through housing mounted in a wall opening, through which a number of cables, which may or may not be multiple, are laid. A rubber housing means or hose part is arranged around each cable, while the remaining space in the wall opening is filled with similar hose parts. Finally, the wall opening is lubricated with a suitable sealant. The hose parts have a continuous slit to facilitate fitting thereof around the already drawn cables.

30

A drawback of this known system and this known method is that various housing means or hose parts that differ from one another in diameter are required if various types of cables with different diameters are passed through the wall opening. After all, only one corresponding type of hose section diameter fits with each type of cable diameter. It goes without saying that the manufacture, transport and storage j V '.

Different types of hose parts are perceived as cumbersome, while during assembly at the construction site it must be accurately determined which type of hose part fits which type I cable, which hinders efficient assembly.

The object of the invention is to improve the system described in the aforementioned European patent in the sense that the above stated drawbacks are obviated.

To this end, a feed-through system of the type mentioned in the preamble I according to the invention has the special feature that the continuous gap is arranged in the form of a helix I in the casing surface of the housing means. This has the advantage that with I different cable diameters a type I housing means or hose part can suffice. Namely, the housing material, preferably made from a resilient material, has the special property that it can be "wound" around a cable already pulled through the wall opening with the aid of a simple winding movement and firmly secured in that position by the material tension remains independent of the diameter of the cable 25. Optionally, several I cables, tubes or the like are pulled through one hose part.

In a preferred embodiment of a system I according to the invention, the housing means in its operating condition has a length between 10 and 30 cm, in particular between 15 and 25 cm. Research has shown that the housing material can be applied to almost any cable diameter, wherein the length can vary within the limits indicated, depending on the cable diameter, without prejudice to its fire-resistant properties.

3

In a further preferred embodiment of a system according to the invention, the fire-resistant housing means is at least substantially manufactured from a fire-resistant rubber. The rubber is an elastomer or a plastomer, in particular EVA rubber, whereby EVA otherwise stands for Ethylene / Vinyl / Acetate. In a preferred variant, the fire-resistant rubber can expand under the influence of heat, so that a sufficient "density" is always realized in the opening in the event of a fire. This expansion also has the important advantage that a longer and therefore better fire-resistant "transit mass" is thereby obtained.

In a further preferred embodiment of a system according to the invention, several second fire-resistant housing means are provided which extend in the same direction as the first housing means arranged around the at least one cable, tube or the like, and which fill up the remaining space in the opening. Due to these "fire-resistant fillers" there is sufficient air containment in the opening, so that a high heat insulation is obtained. In particular, the first and the second housing means are identical, so that only one type of housing means or hose part is present at the construction site, which considerably simplifies and simplifies the assembly of the present system.

In a further preferred embodiment of a system 30 according to the invention, the second fire-resistant housing means are at least substantially made of a fire-resistant rubber and bonded to each other. The rubber is preferably of the type as already explained above with respect to the first housing means. By connecting the housing means acting as a "filling" together to form a "unit", the advantage is achieved that the remaining space in the opening should not be filled one by one with the hose parts, but that this space can be filled with only one or a few "units", which considerably increases the mounting efficiency. This aspect of the invention can optionally also be detached from the specific shape of the previously indicated housing means, for example in the system described in the The aforementioned European Patent Publication No. 0 534 563, I are used and therefore constitutes an invention that can be claimed independently.

In a further preferred embodiment of a system I according to the invention, a heat-resistant and / or liquid-repellent material is provided which is arranged sealingly on at least one open side of the opening. This heat-resistant and / or liquid-resistant sealant kit increases the liquid and gas tightness of the system. Preferably, the kit is expandable under the influence of heat.

A method for passing at least one cable, tube or the like through an opening in a wall, using a system according to the invention comprises the following steps: a. Passing the at least one cable, tube or the like through the opening, I b. arranging, at least partially around a part of the at least one cable, tube or the like arranged at least partially in the opening I 30 a housing means with a continuous slit, wherein the slit in the form of a helix in the lateral surface of the household agent I is applied.

The method preferably also comprises the step of filling the remaining space in the opening with second housing means or hose parts, as well as the

sealingly applying a heat-resistant and / or I

liquid-repellent material on at least one open

side of the opening. I

The invention will be further elucidated with reference to I

of figures shown in a drawing, wherein

Figure 1 is a perspective view of an I

10 preferred variant of a system according to H

shows the invention schematically; H

Figure 2 is a perspective view of a bee

hose part I used in the system of figure 1

15 schematically shows that, for example, an I

cable is installed; and I

Figure 3 shows various as filler in the system I

H used in Figure 1 and bonded to each other

20 shows hose parts. I

In figure 1 a window 1 is distinguished that in a, in H

a steel deck or bulkhead of a ship installed H

opening is mounted. The window 1 contains one in the H

Flange 2 ter H located close to the steel deck

support. After sealing the window 1 in the opening H

electrical lines 3 are connected with I

different diameters through the window 1. I

A sleeve I is then made around each electrical line 3

Of fire-resistant rubber according to the invention H

applied. Applying to different

cable diameters are all the easier with this one H

type sleeve 4, since the sleeves 4 are provided with an H

continuous helical gap 5, which is still H

35 will be explained in more detail with reference to Figure 2. H

Then the remaining space in the window 1 is filled H

with sleeves 7 of the same fire-resistant rubber. H

Finally, a heat-resistant and / or water-repellent sealing kit 6 is applied to both open sides of the window 1. This kit 6 is chosen such that it has good adhesive properties and will cure within 24 hours with the air humidity vulcanizing into a rubbery material. The kit 6 is preferably expandable under the influence of fire. The heat-resistant and / or water-repellent kit 6 guarantees a water-tight and gas-tight passage of the electrical lines 3. It is noted that the sealing kit 6 in Figure 1 has been partially omitted in order not to complicate Figure 1 unnecessarily.

Figure 2 shows that the effective diameter of a sleeve 4 can be adjusted to the diameter of a respective electrical lead 3 by "winding" it in a winding movement around the lead, the length of the sleeve 4 being (with more or less the same pitch) depending on the diameter of the line I varies. Due to this specific shape of the continuous slit, the sleeve 4 is formed, as it were, by a rubber spring with turns 8.

Figure 3 shows a group I of six adhered sleeves 7 assembled as a "unit", which I serve to fill the remaining space in the opening of the window 1. This filling up is thus faster and simpler, since it is not necessary to place sleeves one by one in that space. The sleeves 7 are provided with an adhesive at the area of their contact surfaces 9 and have no continuous gap. The invention is not limited to the preferred variant shown, but also extends to other variants that fall within the scope of protection of the I attached conclusions.

Claims (7)

Claims 1. Fire-resistant system for passing through at least one cable, tube or the like through an opening in a wall, which system comprises a fire-resistant housing means with a continuous slit which is at least partially around the at least one cable, tube or the like and at least partially is arranged in the opening, characterized in that the continuous slit is arranged in the form of a helix in the casing surface of the housing means. 2. Fire-resistant system as claimed in claim 1, wherein in the operating condition the housing means has a length between 10 and 30 cm, in particular between 15 and 25 cm. 3. Fire-resistant system as claimed in claim 1 or 2, wherein the fire-resistant housing means is at least substantially made of a fire-resistant rubber. 4. Fire-resistant system as claimed in claim 1, 2 or 3, wherein several second fire-resistant housing means are provided which extend in the same direction as the first housing means arranged around the at least one cable, tube or the like, and which leave the remaining space in the Fill the opening 30. 5. Fire-resistant system as claimed in any of the foregoing claims 1-4, wherein the second fire-resistant housing means are manufactured at least substantially from a fire-resistant rubber and are adhered to each other. «. , 6. Fire-resistant system as claimed in any of the foregoing claims 1 to 5, wherein a heat-resistant and / or liquid-repellent material is provided which is arranged sealingly on at least one open side of the opening. 7. Method for passing at least one cable, tube or the like through an opening in an I wall, using a system according to any one of the preceding claims 1 to 6, which method comprises the following steps passing the at least one cable, tube or the like through the opening, b. arranging, at least partially around a part of the at least one cable, tube or the like, at least partially arranged in the opening, a housing means with a continuous slit, wherein the slit in the form of a helix in the slit the surface of the housing means is arranged.