Protective equipment for control panels and control panel monitoring system

Abstract

Protective equipment for control panels and control panel monitoring system The invention relates to a protective device for control panels comprising a support (10), further comprising at least one fuse base (1a) for fixing a fuse (1b), at least one thermal fuse (7), at least one supply / drain contact (3), at least one disconnection contact (4), at least one input / output contact (2a) adapted to connect conductors for bidirectional flow of electric current, the fuse base (10) being removably connected, the thermal fuse (7) being arranged to perform the function of activating a disconnection and / or extinguishing function, and / or further comprising at least one network module for monitoring the protective device, and / or at least one mounting block for an extinguishing agent tank, the extinguishing agent tank being removably connected to the support (10).Figure to be published with the abstract: Figure 1a.

Description

Title of the invention: Protective equipment for control panels and control panel monitoring system Field of the invention

[0001] The invention relates to the protection of electrical installations, low and high voltage electrical control panels, low and high voltage distribution control panels and electrical junction boxes, control panels for public distribution networks, control panels for busbar distribution systems and construction site control panels against undesirable temperature rise and / or flame combustion. Background of the invention

[0002] The closest prior art is Czech patent application No. CZ PV 2022-246, with a priority date of June 8, 2022, which describes a passive device for protecting an electrical junction box supplying electrical energy to a building against undesirable high temperature or flaming combustions, which comprises a tank containing the extinguishing agent, a plunger arranged in an opening in the upper part of the tank and a plunger immersed inside the tank, in which a gasket for sealingly sealing the extinguishing agent tank is part of the plunger, and a disconnecting contact made of electrically conductive material is attached to the upper part of the plunger, and a thermal fuse is attached to the upper part of the plunger and a protective frame is arranged above the thermal fuse, which is rigidly connected to the holder,wherein the passive device for protecting the electrical junction box is arranged in a first part of the holder and a fuse is arranged in a second part of the holder in the fuse base for protecting the electrical circuits of the building against short circuit and overload, wherein the first part of the holder and the second part of the holder form a compact unit, wherein at least one input contact and at least one bypass contact are arranged at the end of the first part of the holder and an output contact is arranged at the end of the second part of the holder.

[0003] The disadvantage of this solution is the possibility of using only one type of fuse compatible with the fuse base. The passive device can only be used with a tank for extinguishing agent, it cannot be used when only disconnection from the power source is necessary. The protection device can only be inspected by direct inspection on site. Summary of the invention

[0004] The above-mentioned disadvantages are eliminated by the present invention which relates to a protection device for control panels, comprising a support, further comprising at least one fuse base for fixing a fuse, at least one thermal fuse, at least one supply / drain contact, at least one disconnection contact and at least one input / output contact, characterized in that the at least one input / output contact is adapted to connect conductors for bidirectional flow of electric current, the fuse base is removably connected, the thermal fuse is arranged to perform the function of activating a disconnection and / or extinguishing function, and / or further comprising at least one network module for monitoring the protection device, and / or at least one mounting block for an extinguishing agent tank, wherein the extinguishing agent tank is removably fixed to the support,and / or a fixed or removable partition for mechanical separation of contacts and / or a temperature detector.

[0005] The removable fuse base is compatible with all fuse variants, types and sizes. The fuse is selected based on voltage and current amplitudes. The fuse protects electrical circuits against short circuit and overload. The fuse base is placed in the second part of the holder.

[0006] The protection device is compatible with currents from 0 to 1500 A and voltages from 0 to 1000 V.

[0007] The thermal fuse is designed to act as an activator of the disconnection or possibly extinguishing function; it is used for disconnection from the power supply. It consists, for example, of a glass capsule which breaks when the temperature of the low and high voltage electrical control panel increases, thus disconnecting the electrical circuits and releasing the thermal fuse for the possible discharge of the extinguishing agent if the device has one.

[0008] In another embodiment, fuses made from less temperature-resistant materials, such as plastics, are used with different application points.

[0009] Advantageously, the thermal fuse is made of materials having a definable deformation temperature or is a screw made of polyamide or bimetal.

[0010] Advantageously, the thermal fuse consists of a screw made of a temperature-sensitive material, for example polyamide, the structure of which degrades and deforms when the temperature in the low and high voltage control panels increases, thus disconnecting the electrical circuits and releasing the thermal fuse for the possible discharge of the extinguishing agent if the device has one.

[0011] Another embodiment provides pins which soften after exceeding the given temperature and break, thus disconnecting the electrical circuits and releasing the thermal fuse for the possible discharge of the extinguishing agent if the device has one.

[0012] Another embodiment is switching using a bimetallic element or cable, which ignites upon contact with fire and releases the fuse.

[0013] The type of thermal fuse defines the temperature at which disconnection from the power source and / or switching off occurs. Another possibility of adjusting the temperature in the case of electronics is, for example, depending on the type of bimetallic element, to adjust the switching temperature using a temperature sensor, smoke or other indicator.

[0014] For example, the feed / drain contact is located between the fuse base and the disconnect contact. The disconnect contact is located on the feed / drain contact connection and the feed / drain contact at the fuse bases. The feed / drain contact routes electricity through the protection device of the control panel to the electricity consumer or diverts electricity obtained, for example, from renewable sources from the consumer back to the distribution network.

[0015] The input / output contact carries electricity from the distribution system to the grid, or further to the consumer, or acts as a contact distributing electricity to another low or high voltage electrical control panel. The input / output contact is compatible with v-yoke, cable eyelet, etc. type mountings. The input / output contact is compatible with cables having cross-sections ranging from 10 to 240 mm2 in terms of shape, material and function. The cables are, for example, made of aluminum, copper, plated or other electrically conductive materials.

[0016] If the device has more than one contact, there is a fixed / removable partition between the contacts to separate the contacts mechanically.

[0017] The protection device according to the present invention is mounted in a control panel, for example, by mounting it on a rail compatible with the mounting of fuse bases, fuses and circuit breakers.

[0018] Advantageously, the protection device is modular in nature. At least one protection device can be arranged in the control panel for at least one phase. In the case of three phases, there are three protection devices in the control panel. The protection devices can be installed even under live power lines.

[0019] Advantageously, in the case of multiple protection devices arranged side by side, the individual devices are separated by a partition. When protection devices protection devices are installed side by side in such close proximity that there are no standard distances for arc flashover, partitions are placed between the individual devices.

[0020] If the device has multiple contacts, there is a fixed or removable partition between the contacts to mechanically separate the contacts.

[0021] Advantageously, the tank for the extinguishing agent is removably fixed to the support, for example by screwing, snapping, gluing, using a screw thread, etc. The device also exists without a tank.

[0022] Advantageously, the extinguishing agent in the tank is gaseous or liquid or solid, for example in the form of granules. The extinguishing agent is selected according to the set temperature for extinguishing.

[0023] In another embodiment, the protection device comprises a temperature sensor, for example a bimetallic strip, a temperature detector, a smoke indicator or another indicator.

[0024] The protective device described above protects the control panel against an undesirable rise in temperature and / or flaming combustions. The protection is provided by disconnection from the power source only or by extinguishing only, by discharging the extinguishing agent from the extinguishing agent tank or by disconnection from the power source and extinguishing at the same time.

[0025] The advantages of this solution are the possibility of using any fuses thanks to the removable fuse base. Use of any thermal fuse. Thanks to the removable tank, it is possible to use the protection device without the extinguishing option, or to replace the tank without having to uninstall the entire protection device. Another advantage is the possibility of choosing any thermal fuse. The design of the protection device allows for great variability of use.

[0026] If the protection device contains an Internet of Things (IoT) module, the device can be monitored remotely, and the fault can be detected and repaired very early.

[0027] The present invention also relates to a control panel monitoring system, for example low or high voltage, comprising at least one electrical cabinet, for example a junction box, receiving at least one protection device as described above, a network module, for example an loT module, and / or a fire extinguisher; the system further comprises at least one distribution box, at least one parent entity / object transceiver, at least one transformer station, wherein the at least one electrical cabinet is connected by cable to the at least one distribution box, the at least one distribution box is directly, or via another distribution box, connected by cable to the at least one transformer station, and the at least one electrical cabinet is connected to at least one parent entity / object transceiver via a wireless communication network, for example IoT.

[0028] Advantageously, the network module is located in the electrical cabinet and / or in the protection device.

[0029] Advantageously, the network module is a monitoring device capable of sending information on the fault status in the low and high voltage control panels. It uses communication networks such as the Internet of Things, for example loT SIGFOX, ILoRaWAN, NB-IoT. When the loT networks are unavailable, it can use other communication networks nearby because it has a radio communication module.

[0030] Advantageously, the network module comprises a microcontroller, a test contact for connecting a fault indication source, for example a temperature or smoke detector, at least one temperature sensor / detector, for example an analog temperature sensor, a control unit, a power source, a radio communication module, a communication device and a power supply control unit.

[0031] Advantageously, the network module is equipped with an internal or external power source, for example an induction, a power cable or a battery, which ensures the functionality of the device throughout its lifetime and distributes the necessary voltage to the entire network module.

[0032] Advantageously, to ensure maximum safety and functionality, the network module comprises a test contact for connecting the fault indication source which sends messages about the functionality, for example a test message after installation in the electrical box is sent. This message is used to check the functionality and availability of a communication network, for example loT. It also sends messages at specific time intervals, and warns of insufficient power supply, for example end of battery life, etc. The test contact for connecting the fault indication source is designed in such a way that it cannot be activated by mistake or unauthorized use, a special tool is used, for example a needle or special keys. The test message is different from an alarm message, so that the parent entity / object does not trigger an alarm.

[0033] Advantageously, the network module includes encryption to verify the authenticity and validity of the message.

[0034] The network module sends information to the transceiver of the parent entity / object to which it is connected wirelessly via networks of communication, for example a cloud, a control center, a fire service control center or a building manager.

[0035] Advantageously, the network module is manufactured without external metal parts.

[0036] The fire extinguisher is manufactured, for example, in the form of a fire hose.

[0037] Advantageously, the network module also includes a unique serial number and an encrypted part to verify the validity of the message (either as part of the loT protocol / service or as part of a customized solution). A unique identifier is also placed on the cover of the network module in the form of a QR code.

[0038] The system monitors the temperature inside the distribution boxes of the distribution system. The system is connected to the transceiver of the parent entity / object via the communication network and, in case of an increase in the temperature inside the distribution box, it is activated and sends information about exceeding the permitted temperature.

[0039] Before placing it in the distribution box, the operator scans the QR code of the network module and the application adds this device to the system including the location (GPS coordinates plus optional description).

[0040] After installing the network module in the distribution box, the operator activates the test contact to connect the fault indication source, which sends the test message to the transceiver of the parent entity / object and verifies the functionality.

[0041] During its lifetime, the network module sends status information about its status and a power supply status at a defined time interval. It monitors the functionality of all protective devices installed in the network. It informs the operator, for example by displaying the location of the event, by acoustic, visual or other signaling, or by other means. The setting of the time interval is configured according to the customer's request regarding the traffic cost (cost per message sent). These messages are processed without intervention by the operator of the parent entity / object. Only if no status message is received does the parent entity / object inform the operator of this situation.

[0042] If the temperature in the junction box increases, an alarm message is sent to the transceiver of the parent entity / object. A preferred embodiment is equipped with at least two temperature detectors, which allows for double temperature monitoring and thus avoids false reports of temperature increase. Once the temperature increase is detected by the first detector, the measurement is performed by the second detector. If a temperature increase is also detected by the second detector, an alarm message is sent to the transceiver of the parent entity / object. To ensure delivery, the alarm message is sent multiple times. Immediately after receiving the alarm message, the parent entity / object informs the operator of this event. If the temperature in the junction box continues to rise, the fire extinguisher is activated.

[0043] Before the end of the device lifetime (1 to 12 months in advance), the network module sends a message with this information to the transceiver of the parent entity / object, which evaluates it and informs the operator. Brief description of the drawings

[0044] [Fig. la] illustrates a spatial representation of a protection device equipped with an loT module.

[0045] [Fig. 1b] illustrates another spatial representation of the protection device equipped with the loT module.

[0046] [Fig. le] illustrates yet another spatial representation of the protection device equipped with the loT module.

[0047] [Fig.2] represents the system diagram.

[0048] [Fig.3] represents the functional diagram of the network module.

[0049] [Fig.4] shows the arrangement of the protection device and the network module in the electrical box.

[0050] [Fig.5] shows a detail of the tank with the inlet valve.

[0051] [Fig.6] represents the removable tank of extinguishing agent.

[0052] [Fig.7] represents a fuse screw for disconnection.

[0053] [Fig.8] represents a thermal fuse in the form of a fuse screw for a discharge of extinguishing agent.

[0054] [Fig.9] shows a detail of the thermal fuse in the form of an element bimetallic - in flawless condition.

[0055] [Fig. 10] shows the protection device with the pressure slide.

[0056] [Fig. 11] shows a detail of the thermal fuse in the form of an element bimetallic - in a fault condition.

[0057] [Fig. 12] represents the protection device with the valve.

[0058] [Fig. 13] represents four three-dimensional views of the designed protection device for 1500 A.

[0059] [Fig. 14] represents four three-dimensional views of the protective device equipped with the thermal fuse in the form of the glass capsule for disconnection of electrical circuits.

[0060] [Fig. 15a] shows a section of the detail of the thermal fuse of the protection device in the form of a bimetallic element for disconnection of electrical circuits - in a fault-free condition.

[0061] [Fig. 15b] shows a section of the detail of the thermal fuse of the protection device in the form of a bimetallic element for disconnection of electrical circuits - under a fault condition.

[0062] [Fig. 16] represents a three-dimensional view of the detail of the removable extinguishing agent tank with the net for fixing.

[0063] [Fig. 17] shows a three-dimensional view of the detail of the safety door of the protection device containing a network module with the thermal fuse for disconnecting electrical circuits in the form of a glass capsule - in a fault-free condition.

[0064] [Fig. 18] shows eight three-dimensional views of the protective device equipped with an actuator for disconnecting electrical circuits, views a, b, c and d showing the protective device only with the extinguishing agent tank mounting block, and views e, f, g and h showing the protective device with the extinguishing agent tank removably attached to the extinguishing agent tank mounting block.

[0065] [Fig. 19] shows eight three-dimensional views of the protective device with the removable extinguishing agent tank, views a, b, c and d showing the protective device only with the extinguishing agent tank mounting block, and views e, f, g and h showing the protective device with the extinguishing agent tank removably attached to the extinguishing agent tank mounting block.

[0066] [Fig.20] represents four three-dimensional views of the equipped protection device thermal fuse in the form of glass capsule for disconnecting electrical circuits with the extinguishing agent tank mounting block in position by a locking ring.

[0067] [Fig.21] represents four three-dimensional views (a, b, c and d) of the device of protection equipped with the thermal fuse in the form of a bimetallic element for disconnecting electrical circuits and the extinguishing agent tank mounting block - in a fault condition, represents a side view (e) of the protection device equipped with the thermal fuse in the form of a bimetallic element for disconnecting electrical circuits and the extinguishing agent tank mounting block - in a fault condition, and represents a section (f) of the detail of the thermal fuse of the protection device in the form of a bimetallic element for disconnecting electrical circuits - in a fault condition.

[0068] [Fig.22] represents four three-dimensional views (a, b, c and d) of the device of protection equipped with the thermal fuse in the form of a bimetallic element for disconnecting electrical circuits - in a fault-free condition, represents a side view (e) of the protection device equipped with the thermal fuse under the form of a bimetallic element for disconnecting electrical circuits - in a fault-free condition, and represents a section (f) of the detail of the thermal fuse of the protective device in the form of a bimetallic element for disconnecting electrical circuits - in a fault-free condition.

[0069] [Fig.23] represents two three-dimensional views of the equipped protection device of the screw with the definable plastic deformation temperature to discharge the extinguishing agent - in a defect-free condition.

[0070] [Fig.24] represents two three-dimensional views of the equipped protection device of the screw with the definable plastic deformation temperature to discharge the extinguishing agent - under a fault condition. Examples of embodiments of the invention

[0071] The attached figures illustrate exemplary embodiments.

[0072] Example 1

[0073] The protection device consists of a support 10 and further comprises at least one removable fuse base 1a for fixing the fuse 1b, compatible with all types and sizes of fuses, the protection device being compatible with currents of 0 to 1500 A and voltages of 0 to 1000 V.

[0074] Furthermore, the protection device comprises at least one supply / drain contact 3, which is located between the fuse base 1a and the disconnect contact 4. The supply / drain contact 3 routes electrical energy through the protection device in the control panel to the electricity consumer or diverts electrical energy obtained, for example from renewable sources, from the consumer back to the distribution network.

[0075] The protective device further comprises at least one mounting block 10.1 for the extinguishing agent tank 5. The extinguishing agent tank 5 is removably connected to the support 10, in this exemplary embodiment, by a screw.

[0076] The extinguishing agent in the extinguishing agent tank 5 is gaseous.

[0077] The protection device comprises two input / output contacts 2a and 2b, and there is a fixed partition 11 between the contacts for mechanical separation of the input / output contacts 2a and 2b.

[0078] The protection device is modular in nature. There is one protection device in the control panel for each phase. In the case of three phases, there are three protection devices in the control panel. The protection devices can be installed even under live power lines.

[0079] The three protective devices are installed side by side; in order to comply with the standard distance specified for arc flashover, partitions are placed between the individual devices.

[0080] Furthermore, the protection device comprises a thermal fuse 7 for disconnecting the control panel from the power source, the thermal fuse 7 comprising a glass capsule which, when the temperature of the low or high voltage electrical control panel increases, bursts, thereby disconnecting the electrical circuits / disconnecting the electrical control panel from the power source and / or releasing the thermal fuse for possible discharge of the extinguishing agent from the extinguishing agent tank 5.

[0081] The device also includes an loT module.

[0082] Example 2

[0083] The thermal fuse of the protection device consists of a polyamide bolt arranged on a support, the structure of which degrades and deforms as the temperature increases in the low or high voltage control panels, thus disconnecting the contacts and disconnecting the electrical control panel from the power supply and / or releasing the thermal fuse for the possible discharge of the extinguishing agent if the device has one.

[0084] Example 3

[0085] The thermal fuse of the protection device is in the form of a shear pin, which is placed in the door where it fixes the push pin. After exceeding the temperature given / defined in the electrical control panel, the pin softens and breaks / snaps, which causes the push pin to come out, disconnect the contacts and disconnect the electrical control panel from the power supply and / or release the discharge pin for the possible discharge of the extinguishing agent if the device has one.

[0086] Example 4

[0087] The thermal fuse of the protection device is switched by a bimetallic element, a wire which ignites on contact with the fire and the fuse is released.

[0088] Example 5 - Control Panel Monitoring System

[0089] The system comprises six electrical boxes 25, each receiving three protection devices, a network module 26, in this exemplary embodiment an loT module, and a fire extinguisher, as well as three distribution boxes 28, a transceiver 29 of the parent entity / object, in this case of a control center, and two transformer stations 30, wherein the electrical boxes 25 are connected by cable to the distribution box 28, the distribution boxes 28 are directly, or via another distribution box 28, connected by cable to the transformer station 30, and the electrical boxes 25 are connected by a wireless communication network, in this case an loT network, to the receiver 29 of the control center.

[0090] The loT modules 26 are located in the electrical cabinet 25, one loT module 26 being located in each electrical cabinet 25.

[0091] The loT module 26 is a monitoring device capable of sending information on the fault status in the low and high voltage electrical cabinet 25. It uses communication networks, in this case Internet of Things networks, loT SIGFOX. When the loT networks are not available, it can use other communication networks nearby because it is equipped with a radio communication module 36.

[0092] The loT module 26 comprises a microcontroller 31, a test contact 32 for connecting the fault indication source, a first temperature detector 33.1 and a second temperature detector 33.2, in this case an analog temperature detector, a control unit 34, a power source, in this case a battery 35, a radio communication module 36, a communication device 27 and a power supply control unit 37.

[0093] To ensure maximum safety and functionality, the loT module 26 includes a test contact 32 for connecting the fault indication source that sends messages about the functionality, for example by sending a test message after installation in the electrical box 25. This message is used to check the functionality and availability of the loT network. It also sends messages at certain time intervals, and warns of insufficient power supply, for example the end of the battery life 35, etc. The test contact 32 for connecting the fault indication source is designed so that it cannot be activated by mistake or without authorization, a special tool is used, for example a special needle. The test message is different from an alarm message, so that the parent entity / object does not trigger an alarm.

[0094] The loT 26 module contains encryption to verify the authenticity and validity of the message.

[0095] The loT module 26 sends information to the receiver 29 of the control center, to which it is connected wirelessly via loT networks.

[0096] The loT 26 module is manufactured without the presence of metal parts.

[0097] The fire extinguisher is, for example, in the form of a hose.

[0098] The loT module 26 also contains a unique serial number and an encrypted portion to verify the validity of the message. The unique identifier is also located on the cover of the network module 26 in the form of a QR code.

[0099] The system monitors the temperature inside the electrical boxes of the distribution system. The system is connected to the receiver 29 of the control center via the loT network and, in the event of an increase in the temperature inside from the distribution box, it is activated and sends information about exceeding the permitted temperature.

[0100] Before placing it in the electrical box 25, the operator scans the QR code of the loT module 26 and the application adds this device to the system including the location (GPS coordinates and optional description).

[0101] After installing the loT module 26 in the electrical cabinet 25, the operator activates the test contact 32 to connect the fault indication source, thereby sending the test message to the receiver 29 of the control center and verifying the functionality.

[0102] During its lifetime, the loT module 26 sends status information regarding its status and a power supply status at a defined time interval. It monitors the functionality of all three protective devices installed in the electrical cabinet. It informs the operator, for example by displaying the location of the event, by acoustic, visual and other signaling, or by other means. The setting of the time interval is configured according to the demand for the traffic cost (cost per message sent). These messages are processed without intervention by the control center operator. Only if no status message is received does the control center inform the operator of this situation.

[0103] If the temperature increases in the electrical box 25, an alarm message is sent to the receiver 29 of the control center. The described embodiment is equipped with two temperature detectors 33.1 and 33.2, which allows double monitoring of the temperature and thus avoids false temperature increase messages. Once the temperature increase is detected by the first detector 33.1, the measurement is carried out by the second detector 33.2. If the second detector 33.2 detects a temperature increase, an alarm message is sent to the receiver 29 of the control center. To ensure delivery, the alarm message is sent several times. Immediately after receiving the alarm message, the control center informs the operator of this event. If the temperature in the electrical box 25 continues to increase, the fire extinguisher is activated. List of reference signs

[0104] Fuse Base

[0105] 1b Fuse

[0106] 2a Input / output contact

[0107] 2b Input / output contact

[0108] 3 Power / Drain Contact

[0109] 4 Disconnect contact

[0110] 5 Extinguishing agent tank

[0111] 6 Lower cover of the fixed extinguishing agent tank

[0112]

[0113]

[0114]

[0115]

[0116]

[0117]

[0118]

[0119]

[0120] 7 Thermal fuse 8 Safety door 9 Relief pin 10 Bracket 10.1 Extinguishing agent tank mounting block 11 Removable partition 12 Three-point compression spring 13 Spacer 14 Screw with definable plastic deformation temperature for disconnection

[0121]

[0122]

[0123]

[0124]

[0125]

[0126]

[0127]

[0128]

[0129] 15 Inlet valve 16 Sealing screw 17 Electrically operated pressure slider 18 Electrically operated relief valve 19 Pressure slider 20 Bimetal element 21 Locking stop 22 Disconnecting pin 23 Screw with definable plastic deformation temperature for discharge of the extinguishing agent

[0130]

[0131]

[0132]

[0133]

[0134]

[0135]

[0136]

[0137]

[0138]

[0139]

[0140]

[0141]

[0142]

[0143]

[0144] 24 Lifting spring 25 Electrical box 26 Network module 27 Communication device 28 Distribution box 29 TransceiverParent entity / object 30 Transformer station 31 Microcontroller 32 Test contact for connection of fault indication source 33.1 Detector / sensor 33.2 Detector / sensor 34 Control unit 35 Power source 36 Radio communication module 37 Power control unit

Claims

Claims

1. Protective device for control panels comprising a support (10), further comprising at least one fuse base (1a) for fixing a fuse (1b), at least one thermal fuse (7), at least one supply / drain contact (3), at least one disconnection contact (4) and at least one input / output contact (2a), (2b), characterized in that the at least one input / output contact (2a), (2b) is adapted to connect conductors for bidirectional flow of electric current, the fuse base (1a) is removably connected, the thermal fuse (7) is arranged to perform the function of activating at least one of a disconnection function and an extinguishing function.

2. Protective device according to claim 1, characterized in that the device further comprises a mounting block (10.1) for an extinguishing agent tank (5), the extinguishing agent tank (5) being removably attached to the support (10).

3. A protective device according to claim 1 or claim 2, characterized in that the device comprises more than one input / output contact (2a), (2b), and further comprises a fixed or removable partition (11) for mechanical separation of contacts.

4. Protective device according to any one of claims 1 to 3, characterized in that the device further comprises a temperature detector.

5. Protective device according to any one of claims 1 to 4, characterized in that the thermal fuse (7) is made of materials having a definable deformation temperature or is a screw made of polyamide or bimetal.

6. A protection device according to any one of claims 1 to 5, characterized in that the device further comprises at least one network module (26) for monitoring the protection device.

7. Control panel monitoring system, characterized in that it comprises at least one electrical cabinet (25) receiving at least one protection device according to any one of claims 1 to 5, and a network module (26) located in the at least one electrical cabinet (25) and / or in the at least one protection device, the system further optionally comprising a fire extinguisher, the system further comprising at least one distribution box (28), at least one parent entity / object transceiver (29), at least one transformer station (30), wherein the at least one electrical cabinet (25) is connected by cable to the at least one distribution box (28), the at least one distribution box (28) is directly, or via another distribution box (28), connected by cable to the at least one transformer station (30), and the at least one electrical cabinet (25) is connected to at least one transceiver (29) of the parent entity / object via a wireless communication network.

8. System according to claim 7, characterized in that the network module (26) comprises a microcontroller (31), a test contact (32) for connecting a fault indication source, at least one temperature sensor / detector (33), a control unit (34), a power source (35), a radio communication module (36), a communication device (27) and a power control unit (37).

9. A system according to claim 7 or claim 8, characterized in that the system comprises multiple protective devices arranged side by side, the individual devices being separated by a partition.

10. A system according to claim 7 or claim 8, characterized in that there is a protection device for each phase in the control panel.

Images