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
  • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
  • A62C3/0292—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires by spraying extinguishants directly into the fire
• • 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
  • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
  • A62C3/0221—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for tunnels

Definitions

• Fire-fighting device for controlling and suppressing fire in railway or subway's route tunnel and fire extinguisher comprising at least two fire-fighting devices- Technical Field
• the present invention regards fire-righting devices and systems that can be installed in railway or urban subway's route tunnels, particularly compatible to the structural conformation of the trains and to the safety standards.
• the fight-fighting water plant design which in the "Guide lines to the railway's tunnel" (D.M. Italian 03/96 Fasc:4101) foresees the replenishment of the fire- fighting water system through the hand-fed of the pumps only after the Italian railway network staff confirms that the shutdown voltage took place, and the following usage of the fire hydrant, placed in the cubbies of the tunnel, by the W.F./R.F.I staff once the entry in the tunnel took place.
• This procedure postpone the action and fire-fighting time that are related to both the time necessary for the replenishment of the main pipe, and to the time necessary to the exchange of the stationary in use and to the placement of the earthing poles.
• the replenishment of the main pipe placed in the tunnel happens, normally, in a period of time that goes from 20 to 30 minutes; in this period of time, the concentration of the products of the combustion, reach high levels; contextually, due to the length of the tunnels, the exposure time to the smokes of different toxic elements is extended along the time.
• Eventual structural partitioning in vault or in cement footings are related to the Rating Heat produced, that being not able to get transmitted to the open air (adiabatic environment) react by radiation and convection on the structures.
• a shutdown system that consents the activation of any fire extinguisher when in presence of voltage on the power rail at 3600 V, it needs to wait the time related to the shutdown voltage procedure with the placement of the earthing poles, estimated time between 30 to 40 minutes. It is not possible therefore, obtain an immediate and localised shutdown to impede the extending of the fire.
• the main goal of the present invention is to give a fire-fighting control device and/or suppression of blazes in railway and urban subway's route tunnel where its activation is allowed in presence of voltage on the power rail.
• the extinguishing agent is an 20 extinguishing foam. Normally it's used for the extinguishing of blazes that involve both liquid (Class B) and solid (Class A) fuels.
• a water/foam blending system ensures to blend the correct quantity of concentrated foam liquid with water.
• the foaming solution that is obtained from the blending of the water with the concentrated foam liquid is therefore sent, through a distributing system, to the
• the Extinguishing action of the foam is mainly based on the following principles: To physically separate the oxidant (02) contained in the air of the fuel. Make cold the materials close to the blaze. - Impede the outflow of flammable steams by the fuel.
• a new fire-fighting controlling device and/or suppression of the blazes in the railway and urban subway's route tunnels of deluge type that comprises: at least one source of foam solution, at least a distributing system of the aforesaid foam solution, at least a controlling device to regulate the flow placed on the same distributor of the same foam solution, -- - -a-multiplicity of spray sprinklers; in which this sprinklers are placed on the aforesaid distributor system of the foaming solution with an inclination in a way to distribute the extinguishing foam on the upper and lower part of the train loading gauge, on the side where the passengers exiting is expected, allowing the activation of the fire-i ⁇ ghting device in presence of voltage on the power rail (fig.
• This spreading for the railway routes is equal to 3600 V.
• the position and orientation of the sprinklers are defined in function of the same tunnel's geometry considering the slope, the height variation respect to the entrances, curves, and the movements of the train in curve etc.
• the sprinklers are assembled preferably along the walls of the railway's tunnel.
• the fire-fighting device is a device that uses and extinguishing foam to control and suppress blazes in the railway and urban subway's route tunnels, where the word suppression, both in the description and in the claims, is to be intended as the drastic reduction of the Heat Rating produced by a fire (RHR).
• Numerical simulations made with computational fluid dynamics programs (free code Fire Dynamics simulator (FDS) made available by NIST; and the commercial code Fluent) allow to show that the smoke delivery further to the activation of the device S. P.I. S., comprising at least two devices according to the invention and having the features carried over in the evolution example, is reduced from a maximum of 40-45 m 3 /sec to values lower that 20-25 m 3 /sec.
• Alike processes in a quality level can be derived for CO concentrations, temperatures, etc... Consequently the evacuation's time by walking from the tunnel in sustainable situations for the people (temperatures, heat radiation level, visibility, ease of breathing), or better the pervious distances by the occupiers of the train in low risk situations, are raised by the mitigation action of the system S.P.I.S.. In other words the system is able to decelerate the advancement of the smoke front, the front of the high temperature and of the low visibility.
• the invention carried on in the dependent clauses also shows in contrast to the lacks of the other fire-fighting systems currently used in the railway tunnels, permit to: consent the activation by any occupier of train of the fire-fighting device in presence of voltage on the power rail (that is of 3600 V for the railway routes); — - " ⁇ consent”the-raising-of-the-pervious distance-by the-people-during-the exitings
• the fire-fighting control and/or suppress devices of the blazes in railway tunnels are useful where the inclination is an angle between 25-35° that lies on a transversal section of the railway tunnel and this angle is included between the axis (Z), perpendicular to the longitudinal axis (W) of the nozzle sprinkler, and a horizontal axis (K) parallel to the top of rail and passer-by the collector that joins the distribution system to the sprinkler (look at Fig. 7 details X and Y), where the top of rail is intended as guide rail of the wheel of the rolling units on the rails. It resulted more useful the fire-fighting devices with an inclination of the sprinklers equal to angles of about 30°.
• a part of these sprinklers are advantageously placed to a height from the top of rail equal to 3.660 - 4.060 m, preferably between 3.760-3.960 m, and a further part of these sprinklers is situated to a height from the top of rail equal to 1.440 - 1.840 m preferably between 1.540 - 1.740.
• the sprinklers that are placed on the minor height deliver foam to the height ofthe -under floor of-the- railway ⁇ coachrwhere-the-voltage-equipment ⁇ of the train- (power supply, batteries, electric cables, etc.).
• it can be present organic material on the top of rail and on the rolling trucks, caused by the lavatories of the toilettes of the train or by the lubrication of the moving organs, that can cause combustion further to the sparkles caused by the rolling of the rolling wheels on the rails and/or by the jamming of the brake system. It turned out to be particularly effective the fire-fighting devices according to the invention where the sprinklers are filled cone nozzle, especially if are specific for tunnel.
• the flow control device placed on the distribution system of the extinguishing foam comprises at least a flood valve, which can be advantageously motorised.
• An upstream pressure controller of this valve easily consents the opening in the moment in which the upstream piping of the valve is in pressure, is therefore convenient that the flow control device placed on the distribution system of the extinguishing foam comprises also an upstream pressure controller of the aforesaid flood valve.
• the source of the foaming solution in turn comprises: at least a source of water, at least a pumping device, at least a blending device for the foaming solution - at least a tank containing the concentrated foam liquid.
• the pumping device, the blending device of the foaming solution and the tank containing the concentrated foam liquid are comprise in a sole holder, called by the applicant " pumps primal holder and blending foam liquid stationary" and that the source of water is a water storage tank contained in a holder called by the applicant "fire-fighting water storage tank holder” As already anticipated is suggested that these holders are placed inside the aforesaidrailway " tunnels ' in specific " dedicated cubbies.
• the " pumps primal holder and blending foam liquid stationary" and that the "fire-fighting water storage tank holder” are constituted of a sole body assembled in factory with walls that are externally electro- welded, and have the following dimensions: • length between 5.955 - 6.155 m • length between 2.338 - 2.538 mm • length between 2.491 - 2.691 m regarding the appropriate dimensions to occupy the standard cubbies already existing along the railway tunnel (or easily doable); and that are provided of a winching device, so that can be placed easily, and of protections from the roaming draughts on the footing of this holders (to avoid possible corrosion phenomena).
• the blending foam solution device is advantageously a double concentrated foam water/liquid, and this blender allows conveniently to set up the dilution percentages of the concentrated foam liquid inside the water according to the concentrated foam liquid type that has been chosen.
• a concentrated foam liquid of a biodegradable kind to avoid the environmental pollution, being in this case, facilitated the treatment operation of the sullages of drainage in case of the device intervention.
• the film forming and biodegradable foam liquid AFFF type Fluorosynthetic film forming composed with hydrocarbons surfactants, which the dilution percentage inside the water for the usage is 6%. Therefore is better to put this concentrated foam liquid in the concentrated foam liquid tank of the fire-fighting device.
• the fire-fighting device according to the invention is able to distribute foam along a part of the tunnel long 400 - 460 m with a 5 minutes range allowing therefore to the passengers to evacuate and to walk away prominently from the railway coach in which the blaze have developed.
• zone the portion of the tunnel that is protected by the fire-fighting device according to the invention and section a part of this zone.
• each zone is present in the downstream of the main pumps holder and of the blending foam liquid stationary and of the fire-fighting water storage tank holder, at least a flood valve relative to the zone that is protected by the distribution system of the foam solution. This valve once is opened allows the passage of the foam solution in the entire distribution system that allows the distribution of foam along the entire trait of the zone.
• tunnels with length greater than 400-460 m is preferable to link at least two devices, both to cover a greater number of zones, and to be able to realize a fire-fighting extinguisher for railway tunnels, particularly with single or double tracks, comprising at least of two fire-fighting devices according to the invention in which the aforesaid devices are joint in an adjacent position and joint through collectors that consent to a first fire- fighting device, to work as a source of foam solution for a second fire-fighting device.
• the distribution autonomy of the second fire-fighting device doubles being doubled the quantity of foam solution available, consequently there will be a greater amount of time to evacuate the zone.
• the switch that allows to the first fire-fighting device to work as a source of foam solution for the second fire-fighting device can be remote-controlled and associated to a switch placed along the escape route or can be activated from a remote position, preferably through the "Supervision and Controlling System" expected by the "Guide lines to the railway's tunnel".
• each fire-fighting device can advantageously happen manually through local command with switches placed on the sidewall of the tunnel or ' from " a rcmlDte ' p ⁇ sitionT ⁇ preTerably tMough ' fhe " "Supervision and Controlling System”.
• the intervention area of the system has been defined during designing equal to the length of two coaches (2x40 metres).
• S.P.I.S. system use device
• S.P.I. S. is conceived as foam system for tunnel blaze controlling and suppressing, where with the term suppression is intent the drastic reduction of the Heat Rating produced by a fire (RHR).
• RHR Heat Rating produced by a fire
• the distribution autonomy of the illustrated system S.P.I.S. is of 5 minutes considering the worst simultaneous distribution hypothesis of two zones (more that 800 m of tunnel route). This value can be fatherly raised (to be more precised double, bringing to total 10 minutes of sprinkling net time) through the activation of a group storing/pumping (11) situated in the adjacent zone and comprising a tank "holder” to accumulate fire-fighting water (1) and of a pumps primal "holder” and blending foam liquid station (2).
• NFPA 11 National Fire Protection Association
• Standard for Low Expansion Foam • UNI 9490 Water supply for fire-fighting extinguishers.
• the S. P. I. S. system studied for the tunnels safety, is a fire-fighting blaze control and/or suppression system in railway tunnels constituted of at least two fire-fighting device according to the invention that is a foam deluge type system with the nozzles (10) ⁇ ⁇ " ⁇ opportunely ' pFacecl on thVs ⁇ de walls of the protected tunnel (look £t figure 4,5,6,7).
• the system comprises modular shut down stations (1,2), to be placed preferably inside the
• I l A deluge type system is composed by a control valve (flood valve (3) relative to one zone) usually closed, a distribution system (4), downstream of the flood valve (3), made by empty tubes and nozzles (10) always open protected with a plug with safety chain that is ejected by the foam when sprinkling.
• the cone nozzle filled up sprinklers will be placed with an inclination (30°) in a way to intervene on the upper and lower part of the train loading gauge and in the same time consent the activation of the system in presence of voltage on the power rail, obtaining therefore an immediate and localized shut down in a way to impede the spreading of the blaze.
• the control valve relative to the zone (3) gets opened further to the consent by the pressure controller (14) and the foam solution, through the distribution system (4), is sent by the nozzles (10) placed in a zone where all gets in function contemporarily.
• the railway tunnels are subdivided in zones and each zone is fatherly subdivided in sections (look Figure 3).
• the typical extension of a section is of 40-46 metres.
• a fire-fighting device according to the invention that has an own "fire-fighting water storage tank holder” (1) associated to "pumps primal holder and blending foam liquid stationary" (2) (look figure 9,10,11).
• Each section (40 metres) is served by at least one control valve (for ex. A flood valve (12) relative to the section) upstream of its own distribution system of the foam solution relative to the single section.
• a flood valve (12) relative to the section upstream of its own distribution system of the foam solution relative to the single section.
• the activation of the device can happen indifferently manually through local switch control or from remote position through the "Supervision and Controlling System” expected by the "Guide lines to the railway's tunnel", hi accordance with the rules inherent to the safety in force in more countries, the local switch control placed along the escape routes are not far from each other for more than 25m.
• the local switch control placed along the escape routes are not far from each other for more than 25m.
• deluge system control valves (12) also upstream each section in a way to activate only the nozzle of one or more section but not of the whole zone. Description of the "S.P.I.S.” System for railway tunnels
• Each fire-fighting device comprised in the fire-fighting system according to the invention for railway tunnels comprises:
• Tank “holder” to accumulate fire-fighting water (1) and pumps primal “holder” and blending foam liquid station (2) are preferably placed inside the railway tunnels in appropriate "dedicated cubbies” (13) opportunately realized (look figures 4,5).
• Figure 1 shows the placement of the control valves (12) (flood valves) upstream each section along the tunnel, in median position of the respective controlled section. Preferably these valves are placed in an appropriate cubby obtained on the tunnel's walls. Upstream these valves can be inserted some pressure controllers (14).
• the alarm and command managing station to be connected to the "Supervision and Controlling System” expected by the "Guide lines” can be installed inside the pumps primal holder and blending foam liquid stationary (2). Fire-fighting device supply system
• the tank holder tank to accumulate fire-fighting water (1) has a capacity of 30 m 3 (look figure 12,13,14,15) and is dimensioned in the hypothesis of activation of the fire-fighting device in one zone for a period of five minutes (look figure 4,5,6,7,).
• the pumps primal holder and blending foam liquid stationary (2) comprises two electric pumps " (9)7 a: main one and one in reserve, with each a capacity of 6 rh 3 /min with prevalence of about 9 bar (look figure 8).
• the collectors and the internal circuits of this "holder" are so to permit the controlling and efficiency of the system through an appropriate test system as prescribed in the standards UNI 9490.
• Each electric pump (9) has its own control panel.
• the water supply to the automatic blending groups (8) happens through a collector supplied by the pumps(9).
• the pumps primal holder and blending foam liquid stationary (2) (look figure 8A-8L) comprises besides the main pumps the following equipments:
• PA 6600 calibrated for a blending percentage of 6 % and appropriate to cover the capacity of one or two zones contemporarily;
• the electrical pumps are normally still and are activated manually, through switches placed along the escape route or through the "Supervision and Controlling System” Flood valve
• the flood valves (3) control the foam solution supply to the zones to them associated (look figure 2). Further flood valves (12) of each single section are inserted in the foam solution distribution system (4) upstream the nozzles (10) and downstream the flood valve relative to the zone (3) as it can be seen in figure 1.
• the valves preferably motorized, are normally closed and are opened with the consent of the pressure controller through an appropriate switch placed along the escape route or from remote station through the "Supervision and Controlling System" expected by the "Guide Lines for railway tunnels".
• the flood valves have their own accomplishment electrical type system . Distribution sysfenT ⁇ f the foam solution.
• the distribution system (4) of the foam solution develop along the length of the entire zone of the protected tunnel reaching more sections as shown in figure 1.
• the distribution system tubes (4) of the foam solution are placed on the two side walls on a height of about 4 metres above the upper surface of the rail (S.R.)
• the right and left collectors are supplied with appropriate water/foam nozzle sprinklers (10) of spray type which position and orientation are defined in function of the same tunnel's geometry.
• the distribution system of the foam solution (4) to the nozzle (10) is constituted of a stainless tubing by law UNI 6363, stainless quality Fe 410, hot galvanization by law UNI
• the tube junctions are preferably coated with self-amalgamate tapes in polyethylene. This coating is been adapted as for protection from the roaming draughts and from the accidental voltaging caused by the presence of the power rail.
• the foam solution distribution system to the nozzles is fixed through reinforcements; in order to protect from the roaming draughts such reinforcements are affixed prior placement, in the holes obtained for the supporting plugs, of insulator resin and in cohesion to the supporting surface directly in contact with the tunnel's structure will be placed tape in polyethylene.
• the container is equipped with a "" such to permit, with adequate movement system, the insertment inside the "cubbies" prepared in the tunnel. Sizes ⁇ Length: 6.055 m
• Container set up by a sole body assembled in factory with walls externally electro-welded.
• the main structure is made on a perimeter of spars and a number of traverses and jack rafters realized with sections in steel sheets cold pressed.
• the base is welded to the supporting structure, along the perimeter spars and segmented on the traverses. Is opportunately caulked through the application of a layer of mineral wool thick 100 mm. . Constructively is presented composed by three layers of materials:
• ⁇ ⁇ ⁇ 2° layer 100 mm mineral wool
• ⁇ ⁇ ⁇ 3° layer sheet of 1 mm thickness that has the function of containment of the mineral wool.
• n° 4 angle block able to consent the application of the container on a truck or a railway wagon equipped with twist-lock standard hook.
• Li advance the external profile of the manufacture is constituted by a bed molding in steel sheet cold pressed and have on the corners n°4 angle blocks according to Dima ISO.
• the " covering is realized in stainless-steel sheet " given thickness 10/10 " esplanade perimetrally, laid of the bed molding and to that welded in continuity.
• the walls are constituted by the assemblage of the panels in stainless-steel sheets given thickness 10/10.
• the four angles (corners) are realized with pressed steel sheets (4 mm of thickness) welded both to the angle blocks and to the spars. Doors
• the container has two doors.
• the first one with double wings placed on the side of 2438 mm.
• the second one also with double wings placed on the side of 6.055 mm.
• the doors have a size of 2.000 m x 2.300 m (H) supplied with panic lock and handle and are fixed to the walls through non-untwist hinges.
• the panels are realized with metal section welded in one piece able to guarantee a high grade of crush proofing and consistency. Paint The painting of the surfaces at sight (excluded the stainless parts) is made according to the following procedure that ensures the holding of the manufacture hi a humid environment and scarcely ventilated as the railway tunnels.
• the light loops and D.F. are realized with CEI 20-36 cables adequately protected with tubing and cable boxes in low emission and non-spreading PVC.
• the cable section is adequate to the required power.
• Earthing system AU the " electrical equipments and the installed accessories are regularly connected to an appropriate earthing system.
• the system will connect to the external system through appropriate devices, pile shoes or earth mesh installed during the realization of the base in c.a..
• Electro-pumps Horizontal centrifugal pump ISO 2858 - ISO 5199
• Lubrication oil locking ring: elastic base/piping: section/sheet Materials:
• the electro-pumps primer boards will be realized according to law UNI9490- 10779 and electrical law EN 60439-1 and CEI-EN 60204 file 2119e.
• Type of priming star-triangle
• the boards are constituted in painted steel sheets RAL 7032 with protection IP54. Are completed with:
• Valves and tools for pump diffuser collectors included: • priming pressure controllers (PSL) with one contact SPDT;
• Electric power and control cables non-extending flame type, comprising assemblage accessories, joint box, ramps, cable holder pumps for the connection of all the electrical equipment and tools to the pump station, from the ns. Electrical board (are excluded all the power cables to the ns. Electrical boards).
• Tank of the concentrated foam liquid Number of different accessories for the right installation of the pump groups comprising system attachments to the structure of the container, anti-vibrant seal, safe working protection.
• the tank is complete with all the following accessories: • upper hatch;
• Film forming foam liquid AFFF Fluorsynthetic film forming type composed with hydrocarbons surfactants (where the dilution percentage to obtain the foam liquid is 6%), particularly indicated for fires that implicate liquid (Call B) and solid (Class A) fuels.
• Automatic blending system Automatic blending system, comprising: Double automatic blender (8) of "pump blending) type comprising:
• Such holder is indicated in figures 12,-15 and comprises the following listed elements.
• the container is equipped with a "winching device” such to permit, with adequate movement system, the insertment inside the "cubbies" prepared in the tunnel.
• Container set up by a sole body assembled in factory with walls externally electro-welded.
• the main structure is made on a perimeter of spars and a number of traverses and currents realized with sections in steel sheets cold pressed.
• the base is welded to the supporting structure, along the perimeter spars and on the traverses.
• To the corners are placed n° 4 angle block able to consent the application of the container on a truck or a railway wagon equipped with twist-lock standard hook.
• the external profile of the manufacture is constituted by a bed molding in steel sheet cold pressed and have on the corners n°4 angle blocks according to Dima ISO.
• the covering is realized in stainless-steel sheet given thickness 10/10 esplanaded perimetrally, layed of the bed molding and to that welded in continuity.
• the roof has a manhol diameter 24" complete of air vent and stainless cap.
• the walls are constituted by the assemblage of the panels in stainless-steel sheets given thickness 10/10.
• the four angles (corners) are realized with pressed steel sheets (4 mm of thickness) welded both to the angle blocks and to the spars.
• the light sockets and and D.F., the the switches and the nonself-luminous are in execution
• the light loops and D.F. are realized with CEI 20-22 / 20-36 cables adequately protected with tubings and cable boxes in low emission and non-spreading PVC.
• the cable section is adequate to the required power.
• All the electrical equipments and the installed accessories are regularly connected to an appropriate earthing system.
• the system will connect to the external system through appropriate devices, pile shoes or earth mesh installed during the realization of the base in c.a..
• Drain valve complete of joint to connect to the flexible tube.
• Double flanged float valve PNl Double flanged float valve
• Aspiration collector reilized with painted carbon steel tubing complete of flange PN 16 and anti-vortex plate.
• Sphere valve DN 150 total passage monoblock straight route wafer split: • Body in steel ASTMA A 150.
• Nozzle sprinkler 10 with filled cone specific for tunnel:
• Dormant retainer flap DN 150 • Wafer type.
• Figure 2 shows the main deluge system components ; constructive scheme showing the fire-fighting water container holder and pumping station P & I Diagram
• Figure 2 shows the scheme relative ti the fire-fighting system zone N-I, N, and N+l relating to the storage-pumping and distributing system - Proper of the zones [check if proper for the zones and sections]
• Figure 4 shows a section of the tunnel protected with the fire-fighting system according to the invention along the section A-A
• Figure 5 shows a section of the tunnel protected with the fire-fighting device according to the invention along the section C-C
• Figure 6 shows the distribution plan in the tunnel of the fire-fighting system according to the invention
• Figure 7 shows a section of the tunnel protected with the fire-fighting system according to the invention along the section B-B and detail Y and X - In Figure 8 are carried back the different section of the pumps primal Holder and blending foam liquid station.
• Figure 8 A 20' pumps primal “holder” and blending foam liquid station VIEWED BY "B”.
• Figure 8D Pumps primal holder and blending station SECTION Z-Z;
• Figure 8E pumps primal holder and blending station VIEWED BY "D”.
• Figure 8F Pumps primal holder and blending station SECTION W-W;
• Figure 8G Pumps primal holder and blending station SECTION Y-Y;
• - Figure 8H pumps primal holder and blending station VIEWED BY "C”.
• Figure 81 pumps primal holder and blending station VIEWED BY "A”.
• Figure 8L pumps primal holder and blending station VIEWED FROM ABOVE.
• Figure 9 carry back the section X-X of the fire-fighting water storage tank holder and of the pumps primal holder and blending station .
• Proper for one zone - Figure 10 carry back the side view from the W angle of the fire-fighting water storage tank holder and of the pumps primal holder and blending station .
• Figure 11 carry back view from above the fire-fighting water storage tank holder and the pumps primal holder and blending station .
• Figure 12 shows the fire-fighting water storage tank holder - Proper for one zone - side A view
• Figure 13 shows the fire-fighting water storage tank holder - side B view
• Figure 14 shows the fire-fighting water storage tank holder - side C view
• Figure 15 shows the fire-fighting water storage tank holder - view from above

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• Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
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• Fireproofing Substances (AREA)

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• 2006
  • 2006-06-28 IT IT000068A patent/ITGE20060068A1/it unknown
• 2007
  • 2007-06-26 SI SI200730964T patent/SI2032215T1/sl unknown
  • 2007-06-26 AT AT07805667T patent/ATE553818T1/de active
  • 2007-06-26 WO PCT/IT2007/000455 patent/WO2008001409A1/en active Application Filing
  • 2007-06-26 EP EP07805667A patent/EP2032215B1/en active Active

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