DE2143195C3 - Arrangement for fire sealing of cabinets - Google Patents

Description

3 4

is - that a possible source of fire over the cabinets, which are artfully lined up one behind the other, is sufficient

Fabric-insulated cabling is not used by a cabinet for the purpose of fire sealing, which is one another

place to the other or from one cabinet to the facing, adjoining wall cladding

Can be transferred to the neighboring cabinet. fertilize Wl and W 2 subsequently with the required

Accordingly, the invention relates to a 5 borrowed window F to provide the intermediate layer M

Arrangement for fire sealing between and / to lay or insert the neighboring cabinet

or inside cupboards, in which the walls with its appropriately prepared wall surface

or intermediate floor made of a double jacket made of Wl and the wall surfaces Wl and

Sheet metal and a between this double jacket W 2 in this pressing position by riveting or screwing

inserted, refractory filler material, and io ben to connect with each other.

The ^ invention is that when next to each other to create a new fire transmission safe

standing, the electronics of control and regulation barriers or rows of cabinets, it is recommended that the

System-accommodating cabinet frames the intermediate wall cladding of neighboring, mostly from one

interwalls as just one such double jacket profile steel frame built in place

are executed, which - as if necessary also that of the 15 barrier at the points facing each other

Intermediate floor - on opposing, also prefabricated fire bulkhead building units

Establish recesses (windows) for the implementation, the cross-section of which is shown in FIG.

tion of connecting cables and that this is clear.

Filling material of this double figure consists of a mesh. According to FIG. 2, the fire bulkhead wall consists of braid with expandable meshes, through which ao of two metal plates provided with windows F !! through the Veroindungskabel from one to the an- Pl and P 2, between which the filling material M is pressed into the cabinet or from one to the other. Are guided for secure mounting of the bulkhead cabinet part. materials M between the two plates Pl and P 2

The sheet metal plates provided with windows and that can be one plate Pl around the other plate

Any filler material placed between them should be crimped around by 35 P 2. The illustrated

Riveting, gluing or flanging to form a firewall assembly can also be used alone or

be united in one structural unit. Such fire-proofing additionally by gluing or even more advantageous

bulkhead units can be riveted to prevent the

Gen- and width dimensions - already prefabricated parts are secured. A riveting or

Tigt - transported to the construction site and at the creation of 30 screwing of the components P and M near the

Location of the cabinets to vertical wall parts or edge zones and in rows between the windows

cut to size for horizontal floors and is particularly recommended when firewall

to be assembled. Structural units are to be used that are

An embodiment of the invention is pending according to the usual length and width dimensions explained in more detail on the basis of three figures. 35 are delivered and only at the processing point

Fig. 1 illustrates two next to each other to be cut to size. ... arranged metal control cabinets 51 and 52 in A riveting of the fire bulkhead structural unit is shown in a schematic representation. The adjoining Fig. 3 illustrates, according to which rivets N between vertical wall parts are shown with Wl and W2, the rows of windows the cohesion between them. The wall W1 of the cupboard 51 has the panels Pl and P 2 with the full material, just as the wall W2 of the cupboard 52 ensures window frames M. The cable to be carried out K holes F each in the same plane, around cable is pushed through the window F and the filling compound M and or connecting lines in different.

Levels of cabinets 51 and 52 from one cabinet. If desired, the Brandscnott construction

to be able to move through to the other cabinet. 45 unit of standard commercial size not only for panels

Between the two cabinets, i. H. between the or boards with wall unit format, but also

Cabinet walls Wl and W2, is a view of panels with ceiling, floor and intermediate floor

The wall length and width of the continuous intermediate format at the installation site of the cabinet frame

layer made of fire-retardant material M, eg made of parts. Thus - like Mg. 1

asbestos in sheet or tape form, illustrated - the ceiling tiles D1,, D2, the

adds that the windows F of both walls Wl and intermediate floor Z ₁₁ , Z ₁₂ or Z ₂₁ , Z ₂₂ and the floor

W 2 covers. By riveting, Vcrschrauben or denteileßl, Bl of the cabinets 51 and 52 as fire-

Gluing the wall parts Wl and W 2 of the sealing horizontal cabinet parts built

Barriers S1 and 52 will be the intermediate layer M between.

see the walls Wl and W2-dimensionally comparable 55 The plate-like or ribbon-shaped filler M presses. The intermediate layer M can also consist of a material thickness that is at least copper braided or a copper-asbestos braid with the sheet metal plate thickness of the cladding panels P , which, if necessary, also enables a sufficiently large static shielding, preferably several times larger. To be as this.

Carrying out the necessary cable connections 60 When using a preferably close-meshed cupboard to the other through the window F gen copper braid, i.e. a highly thermally conductive one, it is sufficient to cover the meshes of the asbestos and / or copper material as the filler material M by covering fergewlechtes M with a To widen the pen a little. and letting V of the edge zones of the fire bulkheads. It is essential that the cable assembly through a U-shaped bow Sch at the puncture point is tightly sheathed by the intermediate 65 for sufficient heat dissipation to the outside to material. ensure, to care; the bracket Sch should be through a central

For retrofitting existing and in-use coolant supply constantly on low tempe- rature located control systems are kept with auxiliary or temperatures.

1 sheet of drawings

Claims (1)

2143Ϊ95 represent supply lines and output lines. Claim: In _{addition, a} large number of connecting lines Arrangement for fire sealing between gene, which connect the building blocks or the building block groups and / or within cabinets, with deuen with each other and in many cases also the walls or intermediate floor from a Dop- S still through the intermediate floor of the individual single coat of sheet metal and a between these shoes are led. In the case of control installations that have double-walled, fireproof fillers, which are characterized by multiple barriers or even groups of cabinets, cable connections from net must also be installed so that the electrical cabinet to cabinet is laid next to one another,
record the electronics of control and regulation systems- io The connecting lines and cables in the cabinet frames, the partition walls (P), are usually plastic-insulated; also the frame for the halo-only one such double jacket (P ₁ , P.,) the prints are mostly made of plastic, in order to lead the - as if necessary also "the intermediate floor (Z) - the total weight of extensive control systems - The plastic massings provided in a lying position (window F) for 15 control cabinets and the passage of connecting cables (K) mean a considerable fire hazard, since many of them and that the filling material (M) these Components and building blocks can heat up during the loading double jacket from a mesh with expanding tricbes. If the mesh consists of such a mesh, the heat generated through the cabinet, for example through connecting cables (K) from one to the other 20 fans, will not or only dissipated in an inadequate cupboard or from one cupboard to the other, the heat build-up can lead to a softening the plastics, especially the cable insulation lations, lead, so that short circuits result and the risk of fire is further increased. Electronic components and assemblies as well as »5 One, for example, in one of the plug-in units Their power supply for industrial control and fire that occurs then often spreads quickly Control systems, such as B. for machine tools in the entire cabinet and also overlaps Controls, data processing systems and remote cabling systems laid between the cabinets Superstructures are usually transferred to other cabinet groups. In the event of such a fire in racks of control or switch cabinets 30, not only does a high thing arise, to damage a dust cover on the building blocks, but it can also kill human lives guarantee and they are endangered in rough operation, because plastic fires are poisonous To protect against damage. This is where the elec- tric gases will occur. or electronic control and regulating means It is common practice to connect each control cabinet to mostly to self-contained units suitable for electrical ventilation systems. agree or the individual, also completely separated and in the metal cabinet ventilation closed control modules are to be provided in groups on ducts and slots in order to Mounted carrier. It is also common to keep the bottom temperature well below the flash point elements of electronic control technology, such as B. to hold the plastic; but these are not so Transistors, resistors and diodes, designed in an open 40, that they counter a fire that has occurred. Construction and printed circuit can act on so-called. On the contrary, through the ongoing ten prints to arrange distributed and these prints in the oxygen supply and the chimney effect mostly vertical position in several rows behind air ducts may have occurred each other and next to each other on horizontal Trä- smoldering extremely quickly to an oile- To fasten gerplatten, which in turn are kindled ^{a part 45 NEN fire.} These inserts form, which are like drawers For example, in the case of toolmaking, fire to other parts of the cabinet and the machine controls required components and the spread of the fire to other, neighboring barriers at the installation site of such a control system on the way through which these rooms are usually only available to a limited extent to prevent electrical lines ,
There are already fire-proof cabinet arrangements of both the slide-in units and the cabinets fully known, in which the respective non-combustible ones are used and the components, building blocks and walls and intermediate floor from an outer assembly are packed tightly in such a control jacket to accommodate an inner jacket and an intermediate cabinet. In the case of especially umiangrei- these double jackets, refractory fillings control and regulating systems are usually also made of a material, such as, for. B. kieselguhr, glass wool, a plurality of such control cabinets side by side and 60 asbestos (US Pat. No. 2,808,307).
to be set up one behind the other, with the closet wall surfaces facing each other for fire-proof storage seamlessly delimiting one another, for example from files. In addition, every cabinet contains a sensor that does not easily meet the requirements, at least not without a large number of electrical connection lines, special effort for the accommodation of electrical components - grouped into cable harnesses - in the 65 or electronic components and their interior of the cabinet. cabling, which often goes from cabinet to speaking - is laid vertically or horizontally, cabinet must be used; It is necessary to take care of the necessary control lines, electricity supply - as explained above