EP1387381A1 - Fuse - Google Patents

Abstract

Safety device comprises a coiled body (2), a safety element (1) made from an electrically conducting meltable material connecting current connections (3, 4) and a high energy material (11) for melting the safety material above a limiting temperature. A die (8) made from electrically insulating material is held on the coiled body. The die has a cavity (10) filled with high energy material and covered with the safety element. The high energy material and the safety element are contacted with each other under pressure.

Description

TECHNICAL AREA

The invention is based on a fuse according to the preamble of claim 1. Such a fuse contains a winding body on the a fuse element connected in an electrically conductive manner with two power connections is wound from an electrically conductive, fusible material. Further the fuse contains a high energy material which is above a Limit temperature caused by heating the fuse element with a long-lasting overcurrent is determined, the melting of the Fuse element and thus limiting and / or switching off the Overcurrent causes.

Such a fuse generally contains several series connected Limiting points and is mainly used in medium and high voltage networks used, but can also be used in the low voltage range (10 V to 1 kV) and there loaded with nominal currents up to 10 kA and switch-off currents up to 300 kA become.

STATE OF THE ART

A fuse of the type mentioned at the outset is, for example, in FIGS. 4a and 4b of DE 198 24 851 A1. With this fuse is a Securing element designed as a wire strip. The wire strip is on one axially symmetrically designed electrically insulating winding body wound and carries at regular intervals with a high energy material, such as one Nitro compound from the group of guanides, filled capsules, which in axial guided grooves of the winding body are arranged. The two ends of the Strips are each with one of two fuse power connections connected. The wound bobbin is in an arc extinguishing agent, such as in particular quartz sand, filled housing. When a Long-lasting overcurrent of low strength, the fuse element is heated and thus the high-energy material is heated to ignition temperature. At the When the ignition temperature is reached, the high-energy material is activated and that overcurrent fuse element melted. Here, the Arcing is limited by the extinguishing agent suppressed and the overcurrent is finally interrupted.

This fuse is used to melt the fuse element Explosive-filled encapsulation requires and will also encapsulate also still fixed on the securing element. This increases the cost of manufacturing the Fuse not only considerably, but also enables thermal contact between the fuse element and the high-energy material only via the encapsulation. On to reach the ignition temperature and thus timely ignition of the The high heat flow required for high-energy material is thus made more difficult. The The fuse element will therefore go beyond the set ignition temperature heat to ignite the high energy material. In general, therefore this fuse with a longer pre-ignition time, which means the quality of the Tripping characteristic of the fuse is reduced.

To solve the problem of a large heat flow, two have so far Solutions suggested. The one in the form of a gel-like liquid High energy material is either directly on the fuse element brushed or the fuse element is in the high energy material dipped. Then the high-energy material becomes solvent evaporates. For this, the one provided with the high-energy material Fuse element in a heating cabinet at temperatures of typically Dried 80 ° C over a period of at least 24 h. The thickness of yourself However, the layer of dried high-energy material that forms is only difficult to control, so often more high energy material than necessary is applied. For cost reasons and for safety reasons However, these solutions are not suitable for economical mass production recommend. This is mainly because the manufacturing process is lengthy and there large amounts of high-energy material in the liquefied state are required. The dried high-energy material can be completely safe are processed. In the liquefied state because of the solvent on the other hand, there is a great potential for danger, which can only be achieved with complex Security measures can be controlled effectively.

PRESENTATION OF THE INVENTION

The object of the invention is as set out in the claims to create a backup of the type mentioned in the beginning, which in economically in a process suitable for mass production and can be produced with any trigger characteristic.

In the fuse according to the invention, a die made of electrically insulating material is held on the winding body with at least one cavity extending in the winding direction and the cavity is filled with high-energy material and covered by the fuse element in such a way that the high-energy material and the fuse element are thermally contacted with one another under pressure. Alternatively, in the securing according to the invention, the winding body contains at least two matrices made of electrically insulating material, each with at least one cavity extending in the winding direction, and the cavity of each of the matrices is filled with high-energy material and covered by the securing element in such a way that high-energy material and securing element are thermally interconnected under pressure are contacted. This has the following advantages:
Since the fuse according to the invention, as an independent basic component, depending on the embodiment, has either at least one die filled with high-energy material or at least two dies filled with high-energy material, the manufacture of the fuse can be made considerably easier. On the one hand, the matrices can be produced completely independently of the time and place of the manufacturing process of the fuse according to the invention, for example by a supplier experienced in handling explosive substances. Here, the amount of high-energy material can be dosed very precisely and, with low consumption of expensive high-energy material, matrices with a matching design and physical properties can be achieved within narrow tolerance ranges. Since the high-energy material is present in solvent-free form in these matrices, the matrices can be transported, stored and further processed without risk. When manufacturing a fuse according to the invention with a specification specified by the user of the fuse, suitable matrices can then be selected from pre-fabricated matrices with predetermined dimensions and properties. The manufacture of the desired fuse can then be carried out separately from the explosive processor in steps which are easy to handle in terms of production technology, such as fastening, plugging together, winding and contacting.

The fact that the die is made of insulating material ensures that that high-energy material with conductive components can be used. Barriers between the cavity and one or more additional cavities cause cross insulation of fuse elements and prevent a short circuit between these elements. For the sake of one sufficiently good operational reliability of the fuse according to the invention should However, it should be noted that the matrix has a fitting accuracy in the range of approx. 0.5 mm has that when filled with a liquid high energy material a subsequent drying process keeps the high-energy material dimensionally stable survives that when exposed to arcing no conductive material, such as soot arises, and that after breaking the arc one of the system voltage the insulation section corresponding to the fuse is constructed.

A technically and dielectrically advantageous embodiment of the Fuse according to the invention is characterized in that the winding body is formed substantially axially symmetrical and a cylindrical core has with attached, guided in the radial direction ribs, and that two consecutive ribs in the circumferential direction delimit a groove, in which the die with a radially outward facing surface into which the Cavity opens, is inserted. Because of this training at Manufacture of the fuse largely free of air gaps and voids in the dies Winding bodies are used. Unwanted for dielectric reasons This practically avoids air gaps and cavities.

The sides of the die lying on the flanks of the groove in the area of the cavity each have one of the leadership of the fuse element serving Wall recess on. That applied to the winding body by winding The securing element is therefore held very precisely on the winding body, which ensures safe operation of the fuse.

It is recommended that between the wall recess and the bottom of the groove length of each side of the die is greater than the depth of the ribs dimensioned, because when the securing element is put down during winding a desired large contact pressure between the securing element and the in the high-energy material provided in the cavity is reached. One over the entire High-energy material with a uniformly large contact pressure if the radially outward-facing surface of the die is concavely curved is trained.

The fuse generally has a housing receiving the die. Such a housing can be saved if the die on the Securing element-holding winding body is applied. On the one hand, this can can be achieved in that at least two each as a segment one Cladding matrices are pushed onto the winding body, such that high energy material and fuse element under pressure thermally are contacted with each other. On the other hand, this can also be achieved the matrix is formed by an elastically deformable band, which contains cavities filled with high-energy material and, if necessary, with Pre-tension is wound on the winding body holding the securing element, such that high energy material and fuse element under pressure thermally are contacted with each other.

A cheap solution for certain current limiting tasks Embodiment of the fuse according to the invention, in which an additional Winding body can be saved, is characterized in that it is a has segmented winding bodies and at least two matrices made of electrically insulating material contains at least one in each Direction of cavity extending, and that the cavity with each of the matrices High-energy material is filled and covered by the fuse element, such that high energy material and fuse element under pressure thermally are contacted with each other.

It is recommended that the matrix material of the fuse according to the invention is elastically deformable. Possibly formed during the manufacture of the fuse, undesirable air gaps and cavities can now occur for dielectric reasons can be avoided particularly easily by elastic deformation of the die. Such gaps and voids could result in critical situations that an arc forming when the current is limited does not form along the Fuse element spreads out, but along an air-insulating interface and thus leads to a short circuit between parallel fuse elements. In the case of a ceramic matrix, this requirement can be met by connecting the Matrix with the winding body by means of a cement, a ceramic mass or Adhesives, such as those based on silicone, must be met. But they have to geometrical parameters of winding body and die extremely small Show tolerances. When using elastically deformable material are produced in the manufacture of gaps and cavities by elastic deformation of the Matrix filled out. The manufacturing tolerances can be much larger.

The matrix material preferably contains a crosslinked silicone polymer or a mixture of crosslinked silicone polymers, in which a filler based on a mineral compound or a mixture of several mineral compounds is embedded in powder form. Particularly when the proportion of the filler in the silicone polymer is in the range from 5% by weight to 95% by weight, preferably in the range from 40% by weight to 85% by weight, and in particular in the range from 60% by weight. % to 80% by weight, calculated on the total weight of filler and polymer, and the filler has an average particle size in the range from 0.1 to 500 μm, preferably in the range from 10 to 250 μm and especially in the range from 20 up to 150 microns, preferably in the range from 30 to 130 microns, or in the range from 0.1 to 50 microns, preferably in the range from 0.5 microns to 10 microns, the matrix material also has arc-suppressing properties when a suitable filler is selected. In particular, if the filler is metal oxide, preferably aluminum and / or titanium oxide, glasses, mica, ceramic particles, boric acid, metal hydroxides, preferably aluminum hydroxide and / or magnesium hydroxide, and / or mineral substances containing water of hydration, preferably based on aluminum and / or magnesium oxide and / or magnesium carbonate are used, an arc extinguishing medium desired for a safe operation of the fuse is achieved. An additional extinguishing agent, such as typically sand, which thermally contacts the securing element in addition to the matrix material, is then generally no longer required. Alternatively, another insulating material can also be used as the matrix material, such as ceramic, glass, oxide compacts [Al ₂ O ₃ , Al (OH) ₃ , MgO, Mg (OH) ₂ ], concrete or polymers.

An improvement in the tripping characteristic of the fuse, especially the Ignition behavior, can be achieved by the Side of the die facing away from high-energy material with one material is coated, which compared with the high energy and the Matrix material has a low thermal conductivity and which at the same time should be electrically insulating and resistant to arcing.

DESCRIPTION OF THE DRAWINGS

Fig.1

in perspektivischer Darstellung eine erste Ausführungsform eines Aktivteils einer erfindungsgemässen Sicherung mit einer an einem Wickelkörper gehaltenen und Hochenergiematerial aufnehmenden Matrize und einem auf den Wickelkörper gewickelten Sicherungselement,

Fig.2

einen Abschnitt der Matrize gemäss Figur 1, die jedoch noch kein Hochenergiematerial enthält,

Fig.3

eine Aufsicht auf einen längs III-III geführten Schnitt durch die Matrize nach Figur 2,

Fig.4

eine Aufsicht auf einen längs IV-IV geführten Schnitt durch die Matrize nach Fig.2

Fig.5

ein erste abgeänderte Ausführungsform der Matrize nach Figur 2,

Fig.6

ein zweite abgeänderte Ausführungsform der Matrize nach Figur 2

Fig.7

in perspektivischer Darstellung eine zweite Ausführungsform des Aktivteils der erfindungsgemässen Sicherung mit einem aus mehreren Matrizen zusammengesetzten Wickelkörper, welcher noch nicht mit dem Sicherungselement bewickelt ist,

Fig.8

eine in Richtung einer Symmetrieachse geführte Aufsicht auf ein Aktivteil einer dritten Ausführungsform der erfindungsgemässen Sicherung, und

Fig.9

eine in Richtung einer Symmetrieachse geführte Aufsicht auf ein Aktivteil einer vierten Ausführungsform der erfindungsgemässen Sicherung.

Exemplary embodiments of the invention are shown in simplified form in the drawings, namely:

Fig.1

a perspective view of a first embodiment of an active part of a fuse according to the invention with a die held on a winding body and receiving high-energy material and a securing element wound on the winding body,

Fig.2

1 a section of the die according to FIG. 1, which however does not yet contain any high-energy material,

Figure 3

3 shows a top view of a section III-III through the die according to FIG. 2,

Figure 4

a top view of a section taken along IV-IV through the die according to Fig.2

Figure 5

2 shows a first modified embodiment of the die according to FIG. 2,

Figure 6

a second modified embodiment of the die according to Figure 2

Figure 7

a perspective view of a second embodiment of the active part of the fuse according to the invention with a winding body composed of several dies, which has not yet been wound with the securing element,

Figure 8

a supervision in the direction of an axis of symmetry of an active part of a third embodiment of the fuse according to the invention, and

Figure 9

a supervision in the direction of an axis of symmetry of an active part of a fourth embodiment of the fuse according to the invention.

WAYS OF CARRYING OUT THE INVENTION

In all figures, the same reference numerals refer to parts having the same effect. The Four active parts shown in FIGS. 1, 7, 8 and 9 are each part of one with Resilient nominal voltages from the medium or high voltage range Fuse. The active part is generally not one in the figures housing shown and has a current-carrying, fusible flat wire manufactured, parallel-wound fuse elements 1 (only shown in Fig.1), which is designed to be axially symmetrical Coil 2 are wound. For reasons of clarity is only in Fig.1 one winding each of the fuse elements 1 and of these Fuse elements only one shown as flat wire. Beginning and end of Fuse elements are each with a power connection 3 or 4 of the fuse connected. Instead of several fuse elements 1 wound in parallel, can if necessary, only a single securing element can also be provided.

The winding body 2 has a star-shaped profile and contains one cylindrical core 5 with attached, guided in the radial direction Ribs 6. Two successive ribs in the circumferential direction delimit one Groove 7. A die 8 is inserted into this groove. The die 8 is from one elastically deformable insulating material with arc extinguishing properties formed, such as one described in EP 1 162 640 A1 filler-filled silicone polymer (filler, for example 80 percent by weight quartz, based on the insulating material), and radially with a cover surface 9 Outside. Cavities 10 guided in the winding direction open into this cover surface 9 of approximately trapezoidal cross-section, each with High energy material 11 filled and each by a portion of a turn one of the securing elements 1 are covered. Are in the coverage area High energy material 11 and fuse element 1 under pressure thermally contacted each other.

The high energy material does its job at a relatively low temperature to release so much energy from typically 180 to 240 ° C that it is a metal high electrical conductivity, such as silver, copper or aluminum Fuse element 1 melts. A suitable high energy material is for example a stabilized nitro compound from the group of guanides. The Distance between the cavities 10 is chosen so that for a corresponding Design of the fuse the fuse elements 1 when winding on the High energy filled cavities 10 come to rest. Depending on the design of the For this reason, the cavities extending in the direction of the winding are below one in the fuse Angles of approx. 20 ° to 90 ° to the axis of the winding body 2.

The structure of the die 8 is shown in Figures 2 to 4. The matrix can be seen to have two long sides 12 and 13. After installation of the die 8 in the groove 7, these two sides bear against the flanks of the groove 7 which are guided in the manner of trapezoidal legs. In the direction of the trapezoidal legs, the sides have a length d ₅ . The distance d _{1 between} two cavities in the axial direction depends on the minimum still permissible distance between two adjacent securing elements 1. The dimensions of the securing element 1 determine the width d _{2 of} the cavity 10 and the height d _{3 of} two in the area of each cavity 10 on the two sides 12 , 13 provided wall recess 14 or 15. The securing element is aligned and held in these wall recesses. The length d ₅ -d _{4 of} each side 12 or 13 of the die, which extends between the wall recess 14 or 15 and the rounded base of the groove 7, is greater than the depth of the ribs 6. Sufficient contact pressure of the securing element against the high-energy material is thus achieved when the winding body 2 is wound. The required amount of high-energy material is determined by the depth d _{4 of} the cavity 10. The shape of the winding body, in particular the shape and number of the ribs 6 and the diameter of the cylindrical core 5 are predetermined by the specified electrical nominal values of the fuse, for example the nominal voltage.

Einstecken der mit dem Hochenergiematerial 11 befüllten Matrize 8 sowie weiterer Matrizen in den Wickelkörper 2,

geeignetes Bewickeln des Wickelkörpers 2 mit dem Sicherungselement 1 sowie gegebenenfalls weiterer Sicherungselemente 1,

Umhüllen eines so hergestellten Sicherungsaktivteils mit einem gegebenenfalls noch zusätzliches Löschmittel aufnehmenden Gehäuse,

und Kontaktieren der Enden des Sicherungselements 1 mit den Stromanschlüssen 3 und 4.

The matrix 8 is filled with the high-energy material 11 within a narrow tolerance range, regardless of the safety manufacturing process used by a supplier experienced in handling explosive substances. The amount of high-energy material can be dosed very precisely and, with low consumption of expensive high-energy material, matrices with a matching design and matching properties can be achieved within narrow tolerance ranges. Since the high-energy material is present in the matrices in a solvent-free form, the matrices can be transported, stored and further processed without any problems. When manufacturing a fuse according to the invention with a specification specified by the user of the fuse, the suitable die 8 can then be selected from a large number of prefabricated dies with predetermined dimensions and properties. The manufacture of the desired fuse can then be detached from the explosive processor in steps that are easy to handle in terms of production technology. The steps include:

Inserting the die 8 filled with the high-energy material 11 and further dies into the winding body 2,

suitable winding of the winding body 2 with the securing element 1 and optionally further securing elements 1,

Enclosing a security active part produced in this way with a housing, which may also contain additional extinguishing agent,

and contacting the ends of the fuse element 1 with the power connections 3 and 4.

The formation of the matrix 8 from silicone ensures that even then, if the geometric dimensions of starting components for the Manufacturing the fuse, such as winding body 2 and die 8, within a very large Tolerance ranges lie easily due to elastic deformation void-free active part can be formed.

A base surface 16 of the die lying on the rounded bottom of the groove 7 8 - as can be seen from Fig.1 - is also rounded. Alternatively, you can the base surface 16 as well as the cover surface 9 may be flat and parallel run to the top surface 9 (die according to FIG. 5). The bottom of the groove 7 should then be be expediently designed for dielectric reasons. How out 6 can be seen, the top surface 9 can be rounded, in particular concave be curved, formed. Between the high energy material 11 and the Securing element 1 is a particularly good positive fit and when winding so that a particularly good thermal contact is achieved.

In the embodiment of the active part shown in FIG. 7, the winding body 2 not yet wound with the securing element 1 and is the winding body 2 segmented. Each of six segments of the winding body 1 is from a die 8 is formed in which the cavities filled with high-energy material 11 10 are molded. There are successive cavities 10 in the circumferential direction separated from each other by insulating partitions 17. Through the segmented Structure of the winding body 2 from matrices 8, the individual matrices first be filled individually with liquid high-energy material without the liquid high-energy material can run away. After drying the High energy material, the individual matrices 8 to form Winding body 2 assembled and the winding body 2 with the Securing element 1 wound in such a way that high-energy material and Fuse element are thermally contacted with each other under pressure.

In a further alternative of the active part of the fuse according to the invention the die 8 on the winding body 2 holding the securing element applied.

In the embodiment according to FIG. 8, this is achieved in that several Matrices 8 designed as segments of an envelope, each of which contain dried high energy material 11 on which already with the Securing element wound winding body 2 to form the sheath be attached. The high-energy material is then in thermal contact with the securing element 1, which cannot be seen from FIG. 1, the active part surrounding fuse housing can then generally be omitted because the The outer surface of the active part is then no longer the securing element or contains several possibly provided securing elements, but from Insulating material, such as in particular a weatherproof filler-filled silicone, is formed becomes.

In the embodiment according to FIG. 9, the die is applied to the Winding body through a matrix formed by an elastically deformable band 8 reached, the tape on one of its two sides with the Contains high energy material 11 filled cavities 10. This band is with Preload on the winding body 2 holding the securing element in such a way that wrapped high energy material 11 and fuse element under pressure are thermally contacted. In this embodiment, too there is no separate fuse housing.

In all embodiments, an im general powdery extinguishing agent such as sand. This Extinguishing media should be all that may still be present in the fuse Fill in cavities and exposed surfaces of the securing element 1 contact thermally. In the embodiment according to Fig.1, this is Extinguishing agent especially between the wound bobbin 2 and one not shown, the wound body 2 receiving fuse housing, fills but at the same time also all cavities inside the housing. The Extinguishing agent covers the exposed surfaces of the securing element 1. As a result, arcing occurs quickly when limiting overcurrents deleted. By filling all cavities with extinguishing agent, the dielectric Backup properties improved.

In all embodiments, an improvement in the ignition behavior of the High energy material 11 and thus an improvement in the tripping characteristic can be achieved in that the side facing away from the high energy material Die 8 with one compared to the high energy and die material a low thermal conductivity material is coated. This The material should be electrically insulating and resistant to arcing at the same time. A the corresponding effect can also be achieved by applying the material to the High energy material facing surface of the fuse element 1 reached become.

LIST OF REFERENCE NUMBERS

1

fuse element

2

bobbin

3, 4

power connectors

5

core

6

ribs

7

groove

8th

die

9

cover surface

10

cavity

11

High Energy Materials

12, 13

pages

14, 15

wall recesses

16

footprint

17

partitions

d ₁

Distance between two cavities 10

d ₂

Width of the cavity 10

d ₃

Depth of the cavity 10

d ₄

Height of the wall recesses 14, 15

d ₅

Length of pages 12, 13

Claims (17)

Fuse with a winding body (2), a fuse element (1) wound on the winding body (2) and electrically conductively connected with two power connections (3, 4) made of an electrically conductive, fusible material and with a high-energy material (11) for melting the fuse element (1) above a limit temperature, characterized in that a die (8) made of electrically insulating material is held on the winding body (2) with at least one cavity (10) extending in the winding direction, and that the cavity (10) with high-energy material (11) is filled and covered by the securing element (1) in such a way that high-energy material (11) and securing element (1) are in thermal contact with one another under pressure. Fuse according to claim 1, characterized in that the winding body (2) is essentially axially symmetrical and has a core (5) with attached ribs (6) guided in the radial direction, and that two ribs (6) which follow one another in the circumferential direction are one Limit the groove (7) into which the die (8) is inserted with an outwardly facing surface (9) into which the cavity (10) opens. Fuse according to claim 2, characterized in that sides (12, 13) of the die resting on the flanks of the groove (7) each have a wall recess (14, 15) serving to guide the securing element (1) in the region of the cavity (10) , Fuse according to claim 3, characterized in that the length (d ₅ ) of each side (12, 13) of the die (8) extending between the wall recess (14, 15) and the base of the groove (7) is greater than the depth of the ribs (6) is dimensioned. Fuse according to one of claims 2 to 4, characterized in that the outwardly facing surface (9) of the die (8) is concavely curved. Fuse according to claim 1, characterized in that the die (8) is applied to the winding body (2) holding the securing element. Fuse according to claim 6, characterized in that at least two matrices (8) each designed as a segment of a sheath are pushed onto the winding body in such a way that high-energy material (11) and securing element are thermally contacted with one another under pressure. Fuse according to claim 6, characterized in that the die (8) is formed by an elastically deformable band which contains cavities filled with high-energy material (11) and is optionally wound with pre-tension on the winding body (2) holding the securing element, in such a way that High-energy material (11) and fuse element are thermally contacted with each other under pressure. Fuse with a winding body (2), a fuse element (1) wound on the winding body (2) and electrically conductively connected with two power connections (3, 4) made of an electrically conductive, fusible material and with a high-energy material for melting the fuse element above a limit temperature characterized in that the winding body (2) is segmented and contains at least two matrices (8) made of electrically insulating material, each with at least one cavity (10) extending in the winding direction, and in that the cavity (10) of each of the matrices (8) is filled with high-energy material (11) and is covered by the securing element such that high-energy material (11) and securing element are thermally contacted with one another under pressure. Fuse according to one of claims 1 to 9, characterized in that the matrix material is elastically deformable. Fuse according to claim 10, characterized in that the matrix material contains a crosslinked silicone polymer or a mixture of crosslinked silicone polymers, in which a filler based on a mineral compound or a mixture of several mineral compounds is embedded in powder form. Fuse according to Claim 11, characterized in that the proportion of the filler in the silicone polymer is in the range from 5% by weight to 95% by weight, preferably in the range from 40% by weight to 85% by weight, and in particular in the range from 60% by weight to 80% by weight, calculated on the total weight of filler and polymer, and that the filler has an average particle size in the range from 0.1 to 500 μm, preferably in the range from 10 to 250 μm and especially in the range from 20 to 150 µm, preferably in the range from 30 to 130 µm, or in the range from 0.1 to 50 µm, preferably in the range from 0.5 µm to 10 µm. Fuse according to Claim 12, characterized in that the filler contains metal substances, preferably aluminum oxide and / or titanium oxide, glasses, mica, ceramic particles, boric acid, metal hydroxides, preferably aluminum hydroxide and / or magnesium hydroxide, and / or water of hydration the base of aluminum and / or magnesium oxide and / or magnesium carbonate. Fuse according to one of claims 1 to 13, characterized in that the side of the die facing away from the high-energy material is coated with a material having a low thermal conductivity compared to the high-energy and the die material. Fuse according to one of claims 1 to 14, characterized in that the securing element is thermally contacted with an extinguishing agent additionally provided in addition to the die material. Fuse according to one of claims 1 to 15, characterized in that the fuse has a housing. Fuse according to claim 16, characterized in that the housing is formed by the die (8) and is applied to the winding body (2) holding the securing element (1).

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