Protective equipment for control panels and control panel monitoring systems

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 disconnect contact (4), at least one input / output contact (2a) designed 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 disconnect 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 a fire extinguishing agent tank, the fire extinguishing agent tank being removably connected to the support (10).Figure to be published with the abbreviation: 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 power to a building against undesirable high temperature or flame combustion, comprising a tank containing the extinguishing agent, a plunger disposed in an opening in the upper part of the tank and a plunger immersed inside the tank, wherein a sealing gasket for hermetically sealing the extinguishing agent tank is part of the plunger, and a disconnect contact made of electrically conductive material is fixed to the upper part of the plunger, and a thermal fuse is fixed to the upper part of the plunger and a protective frame is disposed above the thermal fuse, which is rigidly connected to the support,wherein the passive device for protecting the electrical junction box is disposed in a first part of the support and a fuse is disposed in a second part of the support in the fuse base to protect the building's electrical circuits against short circuits and overloads, wherein the first part of the support and the second part of the support form a compact unit, wherein at least one input contact and at least one branch contact are disposed at the end of the first part of the support and an output contact is disposed at the end of the second part of the support.

[0003] The drawback of this solution is that only one type of fuse compatible with the fuse base can be used. The passive device can only be used with a fire extinguishing agent tank; it cannot be used when only disconnection from the power source is required. The protective device can only be inspected by direct on-site inspection. Summary of the invention

[0004] The aforementioned drawbacks 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 disconnect contact, and at least one input / output contact, characterized in that the at least one input / output contact is designed 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 disconnect 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 a fire extinguishing agent tank, in which the fire 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 variants, types, and sizes of fuses. The fuse is selected based on the voltage and current ratings. The fuse protects electrical circuits against short circuits and overloads. 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, optionally, extinguishing function; it is used for disconnection from the power supply. It consists, for example, of a glass capsule that breaks when the temperature of the low- and high-voltage electrical control panel rises, 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 based on materials less resistant to temperature, 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, whose structure 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 for 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 a switching using a bimetallic element or a cable, which ignites on contact with the fire and releases the fuse.

[0013] The type of thermal fuse defines the temperature at which disconnection from the power source and / or shutdown occurs. Another possibility for 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 sensor, or other indicator.

[0014] For example, the supply / drain contact is located between the fuse base and the disconnect contact. The disconnect contact is located on the connection of the supply / drain contact, and the supply / drain contact is located at the fuse bases. The supply / drain contact carries the electricity through the control panel's protective device to the electrical consumer or diverts the electricity obtained, for example, from renewable sources from the return consumer to the distribution network.

[0015] The input / output contact carries electricity from the distribution system to the network, 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-shaped yoke, cable eyelet, and other mounting methods. The input / output contact is compatible with cables having cross-sectional areas 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 protective devices arranged side by side, the individual devices are separated by a partition. When devices of Protective devices are installed side by side in such close proximity that there are no standard distances for arc bypass; partitions are placed between 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 reservoir for the extinguishing agent is removably attached to the support, for example by screwing, snapping, gluing, using a screw thread, etc. The device also exists without a reservoir.

[0022] Advantageously, the extinguishing agent in the tank is gaseous, 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 includes a temperature sensor, for example a bimetallic strip, a temperature detector, a smoke indicator or another indicator.

[0024] The protection device described above protects the control panel against an undesirable rise in temperature and / or flame combustion. Protection is ensured by disconnection from the power supply only, or by extinguishing the fire only, by venting the extinguishing agent from the extinguishing agent tank, or by disconnection from the power supply and extinguishing the fire simultaneously.

[0025] The advantages of this solution include the ability to use any type of fuse thanks to the removable fuse base. Any thermal fuse can be used. Thanks to the removable reservoir, it is possible to use the protective device without the extinguishing option, or to replace the reservoir without having to dismantle the entire protective device. Another advantage is the ability to choose any thermal fuse. The design of the protective device allows for a wide range of applications.

[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 enclosure, for example a junction box, receiving at least one protective device as described above, a network module, for example a IoT 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, in which at least one electrical enclosure is connected by cable to at least one distribution box, and at least one distribution box is directly, or via another distribution box, connected by cable to at least one transformer station, and 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 fault status information to low- and high-voltage control panels. It uses communication networks such as the Internet of Things, for example, SIGFOX IoT, ILoRaWAN, and NB-IoT. When IoT networks are unavailable, it can use other nearby communication networks because it has a radio communication module.

[0030] Advantageously, the network module includes 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 supply, 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 voltage required to the entire network module.

[0032] Advantageously, to ensure maximum safety and functionality, the network module includes a test contact for connecting the fault indication source, which sends messages about functionality. For example, a test message is sent after installation in the electrical cabinet. This message serves to verify the functionality and availability of a communication network, for example, IoT. It also sends messages at specific time intervals and warns of insufficient power supply, for example, the end of battery life, etc. The test contact for connecting the fault indication source is designed so that it cannot be activated accidentally or by unauthorized use; a special tool is used, for example, a needle or special keys. The test message is different from an alarm message, so 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 wirelessly connected via networks of communication, for example a cloud, a control center, a fire department 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 portion to verify the validity of the message (either within the framework of the IoT protocol / service or within the framework 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 parent entity / object's transceiver via the communication network and, if the temperature inside the distribution box increases, 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 parent entity / object transceiver and verifies functionality.

[0041] During its lifetime, the network module sends status information regarding its own status and power supply status at a defined time interval. It monitors the functionality of all protection devices installed in the network. It informs the operator, for example, by displaying the location of the event, through audible, visual, or other signaling, or by other means. The time interval setting is configured according to the customer's request regarding the traffic cost (cost per message sent). These messages are processed without intervention from the parent entity / object operator. 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 rises, an alarm message is sent to the parent entity / object's transceiver. A preferred embodiment is equipped with at least two temperature detectors, enabling dual temperature monitoring and thus preventing false temperature increase reports. Once the temperature rise is detected by the first detector, the measurement is taken by the second detector. If a temperature rise is also detected by the second detector, an alarm message is sent to the parent entity / object's transceiver. To ensure delivery, the alarm message is sent multiple times. Immediately upon 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's lifespan (1 to 12 months in advance), the network module sends a message with this information to the parent entity / object's transceiver, 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 a 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 diagram of the system.

[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] represents a detail of the tank with the inlet valve.

[0051] [Fig.6] represents the removable extinguishing agent reservoir.

[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] represents a detail of the thermal fuse in the form of an element bimetallic - in flawless condition.

[0055] [Fig. 10] represents the protective device with the pressure slider.

[0056] [Fig. 11] represents 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 protection device designed for 1500 A.

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

[0060] [Fig. 15a] represents a section 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-free condition.

[0061] [Fig. 15b] represents a section 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.

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

[0065] [Fig. 19] represents eight three-dimensional views of the protective device with the removable extinguishing agent tank, views a, b, c and d representing the protective device only with the extinguishing agent tank mounting block, and views e, f, g and h representing 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 protective device thermal fuse in the form of a glass capsule to disconnect 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 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 protection equipped with a 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 - in a fault condition. Examples of embodiments of the invention

[0071] The attached figures illustrate examples of embodiments.

[0072] Example 1

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

[0074] In addition, the protection device includes 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 carries electrical energy through the protection device in the control panel to the electrical consumer or diverts the electrical energy obtained, for example from renewable sources, from the consumer back to the distribution network.

[0075] The protective device further includes 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 embodiment example, 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 the 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 bypass, partitions are placed between the individual devices.

[0080] In addition, the protection device includes a thermal fuse 7 for disconnecting the control panel from the power supply, the thermal fuse 7 having 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 supply and / or releasing the thermal fuse for possible discharge of the extinguishing agent from the extinguishing agent tank 5.

[0081] The device also includes a 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, thereby 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 protective device is in the form of a shear pin, which is placed in the door where it secures the push-pin. After exceeding the given / defined temperature in the electrical control panel, the pin softens and breaks, causing the push-pin to extend, the contacts to disconnect, and the electrical control panel to disconnect from the power supply and / or the discharge pin to release 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 cabinets 25, each receiving three protection devices, a network module 26, in this embodiment by way of example a loT module, and a fire extinguisher, as well as three distribution boxes 28, a transceiver 29 of the parent entity / object, in this case a control center, and two transformer stations 30, in which the electrical cabinets 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 cabinets 25 are connected by a wireless communication network, in this case a loT network, to the receiver 29 of the control center.

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

[0091] The IoT module 26 is a monitoring device capable of sending fault status information to the low and high voltage electrical cabinet 25. It uses communication networks, in this case Internet of Things (IoT) SIGFOX networks. When IoT networks are unavailable, it can use other nearby communication networks because it is equipped with a radio communication module 36.

[0092] The loT module 26 includes 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 supply, 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, which sends messages about functionality, for example, by sending a test message after installation in the electrical cabinet 25. This message serves to verify 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 of the 35, etc. The test contact 32 for connecting the fault indication source is designed so that it cannot be activated accidentally or without authorization; a special tool is used, for example, a special needle. The test message is different from an alarm message, so the parent entity / object does not trigger an alarm.

[0094] The loT 26 module contains an 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 wirelessly connected via loT networks.

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

[0097] The fire extinguisher is presented, 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 cabinets of the distribution system. The system is connected to the receiver 29 of the control center via the IoT network and, in the event of an increase in 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 functionality.

[0102] During its lifetime, the loT 26 module sends status information regarding its own condition and 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, through audible, visual, and other signaling, or by other means. The time interval setting is configured according to the traffic cost requirement (cost per message sent). These messages are processed without intervention from 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 rises in the electrical cabinet 25, an alarm message is sent to the receiver 29 in the control center. The described embodiment is equipped with two temperature detectors 33.1 and 33.2, which allows for dual temperature monitoring and thus prevents false temperature increase messages. Once the temperature rise is detected by the first detector 33.1, the measurement is taken by the second detector 33.2. If the second detector 33.2 detects a temperature rise, an alarm message is sent to the receiver 29 in 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 cabinet 25 continues to rise, the fire extinguisher is activated. List of reference signs

[0104] the Fuse Base

[0105] 1b Fuse

[0106] 2a Input / Output Contact

[0107] 2b Input / Output Contact

[0108] 3 Supply / drain contact

[0109] 4 Disconnection contact

[0110] 5 Fire extinguishing agent reservoir

[0111] 6 Lower cover of fixed extinguishing agent tank

[0112]

[0113]

[0114]

[0115]

[0116]

[0117]

[0118]

[0119]

[0120] 7 Thermal fuse 8 Safety door 9 Relief pin 10 Support 10.1 Fire 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 slide 18 Electrically operated relief valve 19 Pressure slide 20 Bimetallic element 21 Locking stop 22 Disconnect pin 23 Screw with definable plastic deformation temperature for discharge of extinguishing agent

[0130]

[0131]

[0132]

[0133]

[0134]

[0135]

[0136]

[0137]

[0138]

[0139]

[0140]

[0141]

[0142]

[0143]

[0144] 24 Lifting spring 25 Electrical cabinet 26 Network module 27 Communication device 28 Distribution box 29 TransceiverParent entity / object 30 Transformer station 31 Microcontroller 32 Test contact for fault indication source connection 33.1 Detector / sensor 33.2 Detector / sensor 34 Control unit 35 Power supply 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 a disconnection and / or switching off function, and / or further comprising at least one network module (26) for monitoring the protective device, and / or at least one mounting block (10.1) for an extinguishing agent tank (5), in which the extinguishing agent tank (5) is removably attached to the support (10), and / or a fixed or removable partition (11) for mechanical separation of contacts and / or a temperature detector.

2. Protective device according to claim 1, characterized in that, in the case of multiple protective devices arranged side by side, the individual devices are separated by a partition.

3. Protective device according to claim 1 or 2, 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.

4. Protective device according to claim 1, characterized in that at least one protective device is arranged in the control panel for at least one phase.

5. Control panel monitoring system, characterized in that it comprises at least one electrical box (25) receiving at least one protection device according to any one of claims 1 to 3, a network module (26) and / or a fire extinguisher, 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 box (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 box (25) is connected to at least one transceiver (29) of the parent entity / object via a wireless communication network.

6. System according to claim 5, 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).

7. System according to claim 5 or 6, characterized in that the network module (26) is located in the electrical cabinet (25) and / or in the protection device.

Images