EP3811480A1 - Elektrische anlage mit einer mehrzahl elektrischer stromkreise und schutzausrüstung gegen stromschlag - Google Patents
Elektrische anlage mit einer mehrzahl elektrischer stromkreise und schutzausrüstung gegen stromschlagInfo
- Publication number
- EP3811480A1 EP3811480A1 EP19732337.1A EP19732337A EP3811480A1 EP 3811480 A1 EP3811480 A1 EP 3811480A1 EP 19732337 A EP19732337 A EP 19732337A EP 3811480 A1 EP3811480 A1 EP 3811480A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- person
- protective device
- emergency signal
- radio
- electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/16—Screening or neutralising undesirable influences from or using, atmospheric or terrestrial radiation or fields
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6804—Garments; Clothes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/033—Details with several disconnections in a preferential order, e.g. following priority of the users, load repartition
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/15—Indicating the presence of current
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
Definitions
- the present invention relates to an electrical system with a plurality of electrical circuits, each having a switch for switching the associated circuit to a voltage-free state, an arrangement for performing work on the electrical system and a method for performing work on the electrical system by a person.
- DE 39 03 025 A1 describes such a method and such a device, wherein an electrode is arranged on at least two extremities of the person, for example arms or legs, which are connected to a control device.
- a body current through the contact of an external electrical potential is detected by the control unit via the electrodes. If such a current flow is detected, the control device activates a switch-off device with which the further current supply to the contact point is interrupted.
- the electrodes and the control device can be arranged on a piece of clothing and the connection between control device and switch-off device is wireless.
- a similar protective device is shown in DE 44 38 063 A1. With such protective devices, the safety of live parts or live parts against electric shock from accidental contact can be increased.
- a safety module is provided on the electrical system, an emergency signal input being provided on the safety module, which, when an external emergency signal is received at the emergency signal input, switches a configured first circuit free of voltage via the assigned switch and De-energizes at least one further circuit via the assigned switch if the safety module still receives the emergency signal at the emergency signal input after a specified period of time.
- a circuit can be de-energized when an emergency signal is received, and several circuits can be de-energized if the emergency signal should still be present despite a first switching action. This can increase the safety of the person working on the electrical system. Any hierarchy of switching operations can also be defined.
- the emergency signal is very particularly advantageously generated with a protective device for detecting an electrical body current, which is carried by the person and which, in the event of a detected impermissible body current, outputs an emergency signal and transmits it to the emergency signal input of the security module.
- a protective device for detecting an electrical body current, which is carried by the person and which, in the event of a detected impermissible body current, outputs an emergency signal and transmits it to the emergency signal input of the security module.
- an impermissible body current which can be configured accordingly
- an emergency signal is triggered, which in turn triggers the switching action by the safety module.
- the protection of the person is no longer tied to the presence of another person who, for example, forces a switching action by operating an emergency stop.
- FIGS. 1 to 8 show exemplary, schematic and non-limiting advantageous embodiments of the invention. It shows
- FIG. 3 shows a protective device worn by a person
- FIG. 4 shows an embodiment of the inventive method for communication a remote location about an electrical accident involving a person wearing a protective device
- FIG 8 shows an arrangement with a plurality of radio receivers for transmitting the emergency signal from the protective device.
- a plurality of circuits 51 are usually provided in such an electrical system 10, the subject invention of at least two circuits 51 a,
- Electrical systems 10 generally include switches 54a, 54b (circuit breakers) for the circuits 51a, 51b in order to disconnect a circuit 51a, 51b from the voltage. Any electrical consumer 53a, 53b can be provided in a circuit 51a, 51b.
- a typical example of the electrical system 10 is an electrical distributor of a building with a number of circuit breakers and circuit breakers (residual current circuit breaker or total current circuit breaker) as switch 54.
- Another example is a control cabinet for a production system.
- circuits 51a, 51b In order to carry out work on circuits 51a, 51b, these are generally disconnected from the power supply, for example by the associated switches 54a, 54b, such as Breakers. However, it may also be the case that certain circuits 51 a, 51 b may not be switched off and therefore work in this circuit 51 a, 51 b must be carried out under voltage. This can be the case, for example, in a production or manufacturing system or in machine tools, where switching off a circuit 51 a, 51 b can lead to an undesired interruption in operation. Sockets 52a, 52b are often also provided in the circuit 51a, 51b, to which electrical consumers can also be connected.
- a circuit 51a is designed as an emergency stop circuit.
- at least one well-known emergency stop switch 20 is connected in this circuit 51a, which switches the circuit 51a in a voltage-free manner when actuated, for example via an isolating unit 23, for example an isolating relay, as in FIG.
- a security module 22 with an emergency signal input 21 is provided.
- the security module 22 can be arranged, for example, in the control cabinet or in the distributor, but can also be arranged in the region of the circuit 51a, 51b or a consumer 53a, 53b.
- An external emergency signal S can be received at the emergency signal input 21, for example wired or wireless (as in FIG. 1). If the emergency signal input 21 receives an emergency signal S, the safety module 22 sets a switching action which ensures that a circuit 51a, 5ab is de-energized. For this purpose, the security module 22 can open a switch 54a, 54b of a circuit 51, 51b, either directly or indirectly. A direct opening could for example be realized by a switch 54a, 54b with an external switching input. For indirect opening, the circuit 51 a, 51 b could be short-circuited (e.g. by connecting a phase to the neutral conductor), which would trigger automatic circuit breakers (as switches 54a, 54b).
- the safety module 22 could also generate a sufficient earth fault current in the electrical circuit 51 a, 51 b, for example by connecting a phase to earth via a resistor, which would trigger a residual current circuit breaker (as a switch 54a, 54b).
- the safety module 22 could also act on any emergency stop switch 20 (as a switch 54a, 54b), in order to actuate the disconnection unit 23, so that the disconnection unit 23 interrupts the circuit 51a, 51b. Which type of action is triggered naturally depends on the type and design of the electrical system 10 and can be adapted accordingly.
- the external emergency signal S is generated in order to protect the person 8 working on the electrical system 10 against an electrical accident or against the effects of an electrical accident.
- the person 8 may touch a live part of the electrical system 10, which may result in an electric shock through the body of the person 8.
- the triggering of the safety module 22 via the externally received emergency signal S is intended to disconnect the circuit 51 a, 51 b on which the person 8 is working in order to minimize the duration of an electric shock that has occurred.
- a hierarchy of the circuits 51a, 51b can be defined in the safety module 22, which are switched off one after the other as long as an emergency signal S is received.
- a plurality of circuits 51a, 51b are simultaneously disconnected in a hierarchy level, either by opening all switches 54a, 54b of the circuits 51a, 51b concerned or by implementing a corresponding switch hierarchy.
- this hierarchy can be tree-like with several hierarchy levels A, B, C, as shown in FIG.
- the switches 54a, 54b (etc.) are provided, which are first switched by the security module 22. These are, for example, the switches 54a, 54b for the individual circuits 51 a, 51 b. If a switching action in this hierarchy level A is unsuccessful, then another circuit in this hierarchy level A can be disconnected as the next switching action, whereby it can also be defined in what order - for example, first neighboring circuits and then others. If this is also unsuccessful, a switch 55a of the next hierarchical level B can be actuated, which switches off all circuits 51a, 51b below.
- all switches 54a, 54b of the circuits 51a, 51b below can also be activated for opening. This could be used, for example, to disconnect all circuits in a part of a building, for example an entire floor. In a next hierarchy level C, all circuits in a building could then be disconnected. It is obvious that the hierarchies can be arbitrary and can be freely configured. Just like the order in which the circuits 51a, 51b are deactivated.
- a plurality of safety modules 22 could also be provided in the electrical system 10, as indicated in FIG. 2, each safety module 22 being responsible for different parts of the electrical system 10.
- the person 8 can additionally be equipped with a protective device 1 against electric shock, as indicated in FIG.
- a protective device is known per se in its basic function from the prior art.
- DE 39 03 025 A1 describes such a protective device, an electrode being connected to a control device on at least two extremities of the person, for example arms or legs. About the electrical A body current is detected by the control device through contact with an external electrical potential. If such a current flow is detected, the control device activates a switch-off device with which the further current supply to the contact point is interrupted.
- the electrodes and the control unit can be arranged on a piece of clothing and the connection between the control unit and the shutdown device is wireless.
- a similar protective device is also shown in DE 44 38 063 A1.
- the subject invention uses a protective device 1 which is known in its basic function from the prior art and which is explained in more detail with reference to FIG. 3 for better understanding.
- the protective device 1, or at least parts thereof, is arranged or integrated on an item of clothing 2, here a shirt.
- clothing item 2 e.g. a pair of pants, a sweater, a T-shirt, a jacket, a jumpsuit, etc.
- Combinations of several parts can also be considered as clothing item 2, e.g. a combination of trousers and shirt, etc.
- At least one sensor 3 is arranged on the item of clothing 2 in order to detect an electric body current flowing through the human body.
- Electrodes 5 can be used as sensor 3, for example, in order to detect an electrical potential or an electrical current.
- the electrodes 5 are preferably arranged at exposed points of the item of clothing 2, for example in the region of extremities, that is to say for example on sleeves, trouser legs or hoods.
- a sensor 3 is also a bio-metric sensor 7 in order to detect a biometric signal, for example the frequency of the heartbeat, the amplitude or the course of the heartbeat, the respiratory rate, the skin resistance, etc.
- a biometric signal for example the frequency of the heartbeat, the amplitude or the course of the heartbeat, the respiratory rate, the skin resistance, etc.
- the senor 3, or the sensors can preferably be integrated in the item of clothing 2, but can also be applied separately, for example by means of a cuff, a bracelet or a belt.
- a sensor 3 could be designed as an electrode 5 in the form of a known Rogowski coil (as in FIG. 3) in order to detect an electrical current flowing through an extremity or other part of the human body.
- the electrode 5 can be placed in a ring around an extremity, e.g. in a waistband of a sleeve or a trouser leg of the item of clothing 2.
- the electrode 5 For the detection of an electrical potential, the electrode 5 must be in contact with the skin in an electrically conductive manner, whereas this would not be absolutely necessary in the case of a Rogowski coil, for example.
- a resistance measurement can also be carried out regularly or continuously between two electrodes 5 in order to check whether the item of clothing 2 is properly connected to the body of the person 8.
- a corresponding biometric sensor 7 for example a heart rate sensor, could be found in the clothing 2 extension piece 2 can be integrated in the area of the chest, or a corresponding chest strap could be put on.
- a sensor 3 is connected via at least one signal line 4 to an evaluation unit 6 (for example in the form of a computing unit, possibly also with appropriate software).
- the signals recorded with the at least one sensor 3 are evaluated in the evaluation unit 6.
- an electrical potential detected with an electrode 5 as sensor 3 or a detected flowing electrical current can be evaluated.
- An applied electrical voltage can be determined between two detected electrical potentials, for example with two sensors 3 designed as electrodes 5, and evaluated in the evaluation unit 6.
- a resistance measurement can also be carried out regularly or continuously between two electrodes 5 in order to check whether the item of clothing 2 is properly connected to the body of the person 8.
- the body current or potential difference can be evaluated analogously using suitable hardware or digitally, which necessitates an A / D conversion and corresponding hardware and software.
- a detected dangerous body current for example in the event of an abnormal heartbeat, a detected dangerous current flow or a dangerous potential difference (voltage) between two electrodes 5, which in turn leads to a current flow through the body
- the evaluation unit 6 In the event of a detected dangerous body current, for example in the event of an abnormal heartbeat, a detected dangerous current flow or a dangerous potential difference (voltage) between two electrodes 5, which in turn leads to a current flow through the body, the evaluation unit 6 generates an emergency signal S which can be used to trigger a desired action.
- Corresponding limit values for a permissible body current for example a permissible potential difference or a permissible current, which can also be changeable, can of course also be stored or specified in the evaluation unit 6.
- patterns of a biometric signal can be stored in the evaluation unit 6, which indicate a dangerous body current.
- different sensors 3 can be provided on the item of clothing 2 in order to increase the security of the detection of dangerous electrical body currents.
- electrodes 5 could be provided on extremities and additionally a biometric sensor 7 for detecting the heartbeat, as shown in FIG.
- the safety of the protective device 1 can also be increased by providing redundancies.
- more than one signal line 4 can be provided per sensor 3, as a result of which possible cable breaks or contact errors do not have to lead to the failure of the safety function or a cable break or contact error can even be recognized and, if appropriate, also displayed.
- the evaluation unit 6 is preferably held or carried by the person 8 who wears the protective device 1.
- this could be arranged in a shoulder bag or a backpack, but could also be in a pocket of the item of clothing 2, or could advantageously, wholly or partially, also be integrated in the item of clothing 2, for example in the form of an intelligent item of clothing with integrated electronics.
- the emergency signal S can in principle be output in a wired or wireless manner and can be received wirelessly or in a wired manner at the emergency signal input 21.
- the protective device 1 thus consists, for example, of an item of clothing 2 with at least one sensor 3 and an evaluation unit 6, which is connected to at least one signal line 4 with the at least one sensor 3 and which evaluates a signal detected by the sensor 3 in order to detect a dangerous electrical signal To capture body flow.
- the emergency signal S of the evaluation unit 6, or generally of the protective device 1, can be used by the security module 22 to take certain configured actions in order to increase the security of a person 8 against electric shock.
- At least one further sensor 9 can optionally be provided for detecting a further variable, with the further variable representing a further state of the person 8 (in addition to a possible body current) is recorded.
- the further sensor 9 can be an acceleration sensor, for example, in order to be able to determine a fall of the person 8.
- a position sensor as a further sensor 9 can be used to detect when the person 8 is lying.
- the further sensor 9 can be designed to record an EKG (electrocardiogram), which can provide important information about the condition of the accident victim 8 in connection with a power accident.
- the breathing of the accident victim 8 can also be detected by means of an acceleration sensor or motion sensor as a further sensor 9.
- several further sensors 9 can also be provided on the protective device 1, any combinations of the above sensors 9 being conceivable.
- Values acquired with sensor 3 or sensors 3 and / or values acquired with at least one further sensor 9 can also be stored in protective device 1 in a memory unit, for example in evaluation unit 6. This makes it possible to read out stored values at a later time or to transfer them to other locations.
- an emergency signal S is triggered, for example wirelessly, for example over a radio link.
- the protective device 1 thus triggers a configured switching action via the emergency signal input 21 of the safety module 22 on the electrical system 10, the switching action aiming at the part which is touched by a person 8, to switch voltage-free. If the protective device 1 is activated, an electric shock has already occurred in these situations.
- the affected person 8 can, however, sometimes work in very remote places or on his own, so that despite the activation of the protective device 1, no help for the accident victim 8 comes. The same applies if the protective device 1 fails for whatever reason, that is to say the protective device 1 responds, but no voltage-free connection can be established.
- the protective device 1 not only generates and outputs an emergency signal S, but also with a transmitting unit 64, e.g. a mobile radio transmitter 63 also establishes a radio connection 62 (indicated by the dashed line) to a configured location 60 that is remote from the location of the power accident, so that help for the accident victim 8 is initiated or coordinated, preferably by a further person 61 in the remote location Position 60, as shown in Fig. 4.
- “removed” means that this additional person 61 is at least so far from the accident victim 8 that this additional person 61 does not visually or acoustically identify the condition of the accident victim. perceivable.
- the additional person 61 can, for example, sit in an emergency center, which can be in a completely different place.
- the protective device 1 can set up the radio connection 62 directly via the transmission unit 64, for example by means of a mobile radio transmitter 63 which is integrated in the item of clothing 2, for example again as part of an intelligent clothing.
- the protective device 1 can also establish the radio connection 62 indirectly, for example by connecting the protective device 1 via the transmission unit 64 via a suitable data connection 65, for example Bluetooth, to a mobile terminal 66 of the person 8, for example a smartphone Bluetooth), which then establishes the radio connection 62 to the remote location 60, as shown in FIG. 5.
- a predetermined message can be sent via the radio link 62, for example a text message (SMS), a data transmission (for example by e-mail) or a call.
- SMS text message
- a data transmission for example by e-mail
- the other person 61 in the remote location 60 can also carry a mobile terminal 67 with them, which can be connected to the radio link 62 if required, for example via a mobile radio network. It is obvious that the remote location 60 (e.g. emergency center) does not have to be location-specific, especially if the additional person 61 also uses a mobile terminal 67 for contacting.
- the transmission unit 64 for example in the form of a mobile radio transmitter 63, is preferably itself integrated in the evaluation unit 6 or also in the item of clothing 2 (for example in the form of an intelligent clothing).
- the transmission unit 64 can be controlled by the evaluation unit 6 of the protective device 1.
- the further person 61 can then coordinate help for the accident victim 8.
- the location of people 8 who are working on live or live electrical systems 10 can be known.
- maintenance work on the electrical system 10 (as in FIG. 4) is planned and it is known when and where it is carried out.
- the protective device 1 can be assigned to a specific person 8 and can also have a unique identification (for example a mobile phone number).
- An incoming emergency call (also as a text message or an e-mail) from a protective device 1 can thus be assigned to a location and / or person 8 in the emergency center, with the help of a helper being able to be coordinated by the other person 61 in a targeted manner ,
- the protective device 1 can also be equipped with a unit 72 for position determination.
- the unit 72 for determining the position for example a GPS (Global Positioning System) sensor, can be arranged on the item of clothing 2 (as indicated by dashed lines in FIG. 6), or can be integrated therein, for example in intelligent clothing with integrated electronics.
- GPS Global Positioning System
- GALILEO satellite navigation systems
- the availability of WLAN (Wireless LAN) networks could be used to draw a conclusion about the current position.
- a position could also be determined via a mobile radio network, for example using GSM location.
- the protective device 1 can also be connected to an external unit 71, which can carry out a position determination, as a unit 72 for position determination, as shown for example in FIG.
- an external unit 71 can carry out a position determination, as a unit 72 for position determination, as shown for example in FIG.
- Today's mobile phones or smart phones generally have integrated position determination, so that a mobile terminal 66 can be used particularly advantageously as an external unit 71 (as in FIG. 6).
- the external unit 71 can also be a GPS receiver.
- the protective device 1 can thus be connected to the external unit 71 via a suitable data connection 65, for example Bluetooth, in order to obtain the current position of the person 8 from the external unit 71.
- a transmission unit 64 could again be provided in the protective device 1 for the connection.
- the current position can be stored in the protective device 1, preferably in the evaluation unit 6 of the protective device 1, preferably with further details of a power accident, such as date, time, duration of the body current, level of the current flow, for later evaluation to enable.
- the current position is understood to mean both geocoordinates and a specific location. Since many external units 71 often also have a location function, the location can also be used directly as the current position.
- the current position or the current location can also be transmitted to the remote location 60 (as in FIG. 4 or 5) in order to support the coordination of help for the accident victim 8.
- the current position or the current location could also be transmitted to the remote location 60 at certain time intervals in order to always know a current position or a current location of the person 8.
- the position or location of the person 8 can be recorded and stored in the protective device 1, for example for documenting power accidents or for statistical records or evaluations of power accidents.
- further details such as date, time, duration of power contact, etc. can be saved.
- the remote location 60 can of course also be automated in such a way that, in the event of an incoming message about a power accident to a person 8, certain actions are taken automatically, for example the notification of an emergency medical service or helper, possibly also with the specific position or location the person 8, possibly also with other available data.
- the additional person 61 would not be absolutely necessary.
- the remote location 60 could also determine one or more helpers in the vicinity of the person 8 involved in the accident and inform them specifically about the power accident.
- the assistant who is closest to the accident victim 8 is preferably determined.
- the helper can be equipped with a communication unit, for example a mobile phone or smart phone, which is contacted by the remote location 60 or by another person 61 in the remote location 60 with a corresponding message.
- the message could be an SMS, email, or something similar, or a call.
- a helper in the vicinity of the accident victim could be determined by knowing the positions of all the assistants in question in the remote location 60.
- the current location could be continuously transmitted to the remote location 60 via the communication units of the helpers at predetermined intervals.
- Proximity could also be determined in such a way that it is determined whether a communication unit of the accident victim 8, for example a mobile terminal 66, can exchange messages with a communication unit of a helper, for example via Bluetooth. tooth, or whether both can receive the same WiFi network. This could also be continuously communicated to the remote location 60 by the respective communication unit so that the remote location 60 always has a current status.
- a protective device 1 according to the invention can also be used advantageously in such cases, as is described by way of example with reference to FIG.
- each protective device 1a, 1b can be designed with a communication unit 80a, 80b in order to be able to set up a communication connection 81, for example by means of Bluetooth.
- the communication connection 81 can, however, also be established indirectly, for example as explained in FIG. 5, via a mobile terminal 66 of a person 8a, 8b.
- the communication units 80a, 80b of the two protective devices 1 a, 1 b also do not have to communicate with one another directly.
- a communication center 82 be set up in the area of the work, with which the individual protective devices 1a, 1b connect via their communication units 80a, 80b, as indicated in FIG.
- the communication link 81 is then established via the communication center 82.
- the communication link 81 can be permanently set up or can also be set up on a case-by-case basis. If a protective device 1 a triggers an emergency signal S for a person 8 a because this person 8 a gets into a circuit, the at least one further person 8 b in the vicinity is communicated via the communication unit 80 a of the protective device 1 a via the communication link 81 and the communication unit 80 b of the protective device 1 b informed about it.
- a corresponding signaling unit for example an acoustic, visual or palpable alarm, can also be provided on a protective device 1. If a protective device 1 is additionally provided with a unique identifier, it can also be transmitted which protective device device 1 is affected in order to be able to find the accident victim 8a more easily. This can considerably accelerate the help for an accident victim 8a.
- the described communication could also take place via a (arbitrarily) distant location 60 as a communication center, for example as described in FIG. 4 or 5.
- An acoustic warning such as "Warning - power accident - this person is under voltage. Do not touch per person. Interrupt the circuit or knock the person off the circuit ”or“ Warning - electrical accident - this person received an electric shock. Touchable live parts are nearby ” would be conceivable, for example.
- a radio connection for transmitting the output signal S from the protective device 1 to a radio receiver 90 of the electrical system 10 it can of course be checked, either continuously or at least at the beginning of the work, whether there is a radio connection at all. If not, a corresponding alarm can be displayed on the protective device 1, for example acoustically, visually or palpably. The same naturally applies if a low charge state of an energy supply of the protective device 1 is determined in the protective device 1.
- the radio connection between the protective device 1 and the radio receiver for receiving the emergency signal can break off easily and undetected, in particular when the person wearing the protective device 1 is moving. This can lead to false triggers if a missing radio signal in the radio receiver triggers a switching action. In the worst case, the protective person 1 no longer provides protection for the person wearing 8 without being noticed.
- the electrical system 10 could also be configured differently depending on the danger of the application, so that an interruption of the radio connection in a very dangerous application forces a switch-off process, and does not do so in a less critical application.
- radio receivers 90a, 90b each with an emergency signal input 21 for receiving an emergency signal S from the protective device 1, can be provided in the work area of the person 8, as shown in FIG. 8.
- a radio receiver 90a, 90b can be connected to the security module 22 of the electrical system 10 as described above in order to receive an emergency signal S from the protective device 1 record and trigger a switching operation.
- the emergency signal input 21 would be arranged externally from the electrical system 10.
- the protective device 1 can be in a bidirectional radio connection with the radio receivers 90a, 90b.
- a signal receiver 91 is provided on the protective device 1 in order to be able to receive a radio signal F which is emitted by a transmitter 92a, 92b in the radio receiver 90a, 90b.
- the signal receiver 91 is preferably arranged on the item of clothing 2 or integrated in the item of clothing 2 and connected to the evaluation unit 6 or another computing unit in the protective device 1.
- the radio signal F from a radio receiver 90a, 90b is emitted continuously or at least at regular intervals, and is received by the signal receiver 91 of the protective device 1.
- the protective device 1 is thus able to evaluate the signal quality of the radio channel between the protective device 1 and a radio receiver 90a, 90b.
- the protective device 1 can thus decide via which of the available radio channels the emergency signal S is sent.
- a large number of such radio receivers 90a, 90b can be arranged in a building or a system, and the protective device 1 selects a radio receiver 90a, 90b, for example the radio channel with the best signal quality, in order to transmit the emergency signal S thereover. In this way, the person 8 wearing the protective device 1 can move through the building or the system without losing the radio connection.
- the decision is made about which radio receiver 90a, 90b is to be used for communication.
- the decision could be made in the signal receiver 91, in the radio receivers 90a, 90b or in the security module 22 or elsewhere.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Alarm Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT505132018A AT521135B1 (de) | 2018-06-21 | 2018-06-21 | Elektrische Anlage mit einer Mehrzahl elektrischer Stromkreise und Schutzausrüstung gegen Stromschlag |
PCT/EP2019/066118 WO2019243381A1 (de) | 2018-06-21 | 2019-06-19 | Elektrische anlage mit einer mehrzahl elektrischer stromkreise und schutzausrüstung gegen stromschlag |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3811480A1 true EP3811480A1 (de) | 2021-04-28 |
Family
ID=66999831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19732337.1A Withdrawn EP3811480A1 (de) | 2018-06-21 | 2019-06-19 | Elektrische anlage mit einer mehrzahl elektrischer stromkreise und schutzausrüstung gegen stromschlag |
Country Status (4)
Country | Link |
---|---|
US (1) | US11951306B2 (de) |
EP (1) | EP3811480A1 (de) |
AT (1) | AT521135B1 (de) |
WO (1) | WO2019243381A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020114216A1 (de) * | 2020-05-27 | 2021-12-02 | Westnetz Gmbh | Spannungswarner, Spannungswarnsystem sowie elektrische Anlage |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784842A (en) * | 1972-02-03 | 1974-01-08 | F Kremer | Body current activated circuit breaker |
US4310770A (en) * | 1979-07-25 | 1982-01-12 | Ohio Agricultural Research And Development Center | Demand load control |
DE3903025A1 (de) | 1989-02-02 | 1990-08-09 | Asea Brown Boveri | Verfahren zum schutz von personen |
DE4438063A1 (de) | 1994-10-25 | 1995-05-24 | Rene Haimerl | Drahtlose Schutzvorrichtung zur Arbeit an spannungsführenden Teilen |
US5844326A (en) * | 1997-06-23 | 1998-12-01 | Cruising Equipment Company, Inc. | Managed electrical outlet for providing rank-ordered over-current protection |
DE102016123954A1 (de) | 2016-12-09 | 2018-06-14 | Eaton Industries (Austria) Gmbh | Schaltschrank |
WO2018114304A1 (de) * | 2016-12-23 | 2018-06-28 | Omicron Electronics Gmbh | Vorrichtung und verfahren zum schutz einer person vor einem elektrischen signal |
-
2018
- 2018-06-21 AT AT505132018A patent/AT521135B1/de active
-
2019
- 2019-06-19 EP EP19732337.1A patent/EP3811480A1/de not_active Withdrawn
- 2019-06-19 US US17/254,593 patent/US11951306B2/en active Active
- 2019-06-19 WO PCT/EP2019/066118 patent/WO2019243381A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
US20210128909A1 (en) | 2021-05-06 |
AT521135B1 (de) | 2019-11-15 |
AT521135A4 (de) | 2019-11-15 |
US11951306B2 (en) | 2024-04-09 |
WO2019243381A1 (de) | 2019-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT521697B1 (de) | Mobiler Elektroverteiler mit Notsignaleingang | |
AT521137B1 (de) | Mobiler Elektroarbeitsplatz mit Schutzausrüstung gegen Stromschlag | |
EP3588717B1 (de) | Relaisprüfgerät mit schutzausrüstung gegen stromschlag | |
AT521371B1 (de) | Elektrische Anlage mit Notsignaleingang zum Empfangen eines über Funk gesendeten Notsignals | |
AT521135B1 (de) | Elektrische Anlage mit einer Mehrzahl elektrischer Stromkreise und Schutzausrüstung gegen Stromschlag | |
EP3811347B1 (de) | Anordnung und verfahren zur erhöhung der sicherheit einer person im falle eines stromunfalls | |
AT521366B1 (de) | Schutzvorrichtung gegen Stromschläge | |
EP3588718B1 (de) | Schalterprüfgerät mit schutzausrüsten gegen stromschlag | |
EP3588715B1 (de) | Transformatorprüfgerät mit schutzausrüstung gegen stromschlag | |
AT521138B1 (de) | Anordnung und Verfahren zur Koordination von Hilfe im Falle eines Stromunfalls | |
EP3588716B1 (de) | Wandlerprüfgerät mit schutzausrüstung gegen stromschlag | |
WO2019243383A1 (de) | Elektroarbeitsplatz mit schutzausrüstung gegen stromschlag | |
WO2019243380A1 (de) | Hochspannungsprüfplatz mit schutzausrüstung gegen stromschlag |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210118 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ADAPTIVE REGELSYSTEME GESELLSCHAFT MBH |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20220818 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20230103 |