DE3001168A1 - Automatic electrical equipment safety system testing - performed continuously as defined intervals, or on demand using dedicated circuits for testing e.g. isolation resistance and leakage current - Google Patents
Automatic electrical equipment safety system testing - performed continuously as defined intervals, or on demand using dedicated circuits for testing e.g. isolation resistance and leakage currentInfo
- Publication number
- DE3001168A1 DE3001168A1 DE19803001168 DE3001168A DE3001168A1 DE 3001168 A1 DE3001168 A1 DE 3001168A1 DE 19803001168 DE19803001168 DE 19803001168 DE 3001168 A DE3001168 A DE 3001168A DE 3001168 A1 DE3001168 A1 DE 3001168A1
- Authority
- DE
- Germany
- Prior art keywords
- test
- testing
- leakage current
- isolation resistance
- tests
- 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- Withdrawn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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2827—Testing of electronic protection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
Patentschrift:Patent specification:
"Automatische Prüfung von Sicherheitseinrich-tungen" Neben der Funktion eines Apparates ist es wichtig, daß die Benutzung des Apparates weder den Benutzer noch Dritte schädigt."Automatic testing of safety devices" In addition to the function of an apparatus, it is important that neither the user nor the user can use the apparatus harms third parties.
Solche Schäden können sowohl durch Fehlbedienung bei intakten Geräten entstehen, als auch durch Mängel am Gerät oder System verursacht werden.Such damage can be caused by operating errors in intact devices as well as caused by defects in the device or system.
Es sind verschiedene Sicherheitseinrichtungen und -forderungen Stand der Technik, die solche geräte- oder systembedingte Schäden verhindern sollen. Die Praxis zeigt jedoch, daß solche Sicherheitseinrichtungen oder -forderungen durch Einflüsse, wie Alterung, bewußte oder fahrlässige Ausschaltung durch den Anwender, ineffektiv werden, ohne daß der Benutzer dies feststellen kann.There are various safety devices and requirements the technology that is intended to prevent such device or system-related damage. the Practice shows, however, that such safety devices or requirements by Influences such as aging, deliberate or negligent deactivation by the user, become ineffective without the user being able to tell.
In diesen Fällen ist das Gerät nicht mehr durch die Sicherheitseinrichtung geschützt, d.h. bei einem Geräte-Mängel können Gefährdungen auftreten.In these cases the device is no longer through the safety device protected, i.e. in the event of a device defect, hazards can arise.
Die vorgeschlagene Erfindung knüpft an die sich einbürgernde Methode an, die ordnungsgemäße Funktion eines Apparates nicht nur durch den Benutzer zu überprüfen, sondern diese Prüfung durch Knopfdruck oder durch -Zeitablauf selbstätig ablaufen zu lassen (Test). Z.B. bei kleinen Taschenrechnern werden solche Funktions-Tests durch Druck auf einer Testtaste ausgelöst. Der Rechner überprüft in einem festgelegten Ablauf seine Funktion - mehr oder weniger vollständig - und zeigt in geeigneter Weise das Ergebnis dem Benutzer an.The proposed invention ties in with the naturalization method that the proper functioning of an apparatus is not restricted to the user alone check, but this check automatically by pressing a button or by timing to run (test). Such function tests are carried out e.g. on small pocket calculators triggered by pressing a test button. The calculator checks in a set Expires its function - more or less completely - and shows in appropriate Direct the result to the user.
Alle bekannten Testmethoden sind für den Benutzer ilinweise der ordnungsgemäßen Funktion, die für ihn im Vordergrund steht. Wie oben angeführt, sind jedoch Sicherheitseinrichtungen im Gerät oder außerhalb des Gerätes erforderlich, um nicht einen Gerätemängel zu einer Gefährdung werden zu lassen.All known test methods are correct for the user Function that is in the foreground for him. As stated above, however, there are safety devices Required inside or outside the device in order not to cause a device defect become a hazard.
Zur Sicherung der Effektivität dieser-Sicherheitseinrichtungen sind in den einschlägigen Vorschriften gewisse Maßnahmen gefordert, deren Einhaltung dem Hersteller aufgegeben sind und deren Fortbestand im wesentlichen Aufgabe der Instan-dEaltung des Gerätes und dort der regelmäßigen Inspektion ist. Es kann sogar gesagt werden, daß die Inspektion eines Gerätes neben der ordnungsgemäßen Funktion sich vornehmlich auf die Prüfung des ordnungsgemäßen Zustandes dieser Sicherheitseinrichtung erstreckt.To ensure the effectiveness of these safety devices are In the relevant regulations, certain measures are required, compliance with them are given up to the manufacturer and their continued existence is essentially the task of Installation of the device and regular inspection there. It can even It can be said that the inspection of a device is in addition to its proper function primarily on checking the proper condition of this safety device extends.
Z.B. werden für ein elektro-medizinisches Gerät die folgenden Anforderungen (Auswahl gestellt (VDE 107, VDE 7050): - Isolationswiderstand, - Schutzleiteranschluß, - Maximaltemperatur an gewissen Stellen, z.B. in der Sekundarwicklung und/oder an gewissen Oberflächen, - Ableitstrom von gewissen Oberflächen.For example, for an electro-medical device, the following requirements become (Selection made (VDE 107, VDE 7050): - insulation resistance, - protective conductor connection, - Maximum temperature at certain points, e.g. in the secondary winding and / or on certain surfaces, - leakage current from certain surfaces.
Erfindungsgemäß wird vorgeschlagen, in einem Apparat eine Einrichtung einzubauen oder eine Zusatzeinrichtung zeitweise oder dauernd zu benutzen, womit dauernd nach vorgegebenem Zeitablauf selbstätig oder durch willkürliche Auslösung eine oder mehrere Messungen gleichzeitig oder nacheinander im Gerät oder durch eine Zusatzeinrichtung durchgeführt werden, deren positives Ergebnis durch geeignete Anzeige oder Warneinrichtung den Benutzer informiert, ob, bzw. daß alle notwendigen ausgewählten Sicherheitseinrichtungen ordnungsgemäß funktionieren. Hierbei sind nach Möglichkeit die Original-Prüfmethoden der einschlägigen Vorschriften zu benutzen. Wenn dies unmöglich ist, so zumindest äquivalente Prüfmethoden.According to the invention it is proposed to have a device in an apparatus to build in or to use an additional device temporarily or permanently, with which continuously after a specified period of time automatically or by arbitrary triggering one or more measurements simultaneously or one after the other in the device or by a Additional equipment can be carried out, the positive result of which by suitable Display or warning device informs the user whether or that all necessary selected safety devices are functioning properly. Here are to use the original test methods of the relevant regulations if possible. If this is impossible, at least equivalent test methods.
Als Beispiel sei die automatische Messung des Ableitstromes angeführt.An example is the automatic measurement of the leakage current.
Die Einrichtung soll so ausgelegt sein, daß Fehler der Einrichtung nicht zu einem positiven Meßergebnis bei defektem Prüfling führen.The facility should be designed to prevent failure of the facility do not lead to a positive measurement result in the case of a defective test item.
Eine solche Einrichtung kann z.B. aus einem Extra-Einschub bestehen, der auch das Netzteil enthält. Hier werden-die o.a. Messungen oder eine Auswahl davon dauernd ausgeführt, z.B.Such a device can, for example, consist of an extra slot, which also contains the power supply. The above measurements or a selection are made here of which carried out continuously, e.g.
Ableitstrom durch Meßgerät mit Meßbereich 1OmV/i = lkOhm, Maximaltemperatur durch Überwachung eines in die SekdWicklung eingebauten temperaturabhängigen Schalters oder Widerstandes, evtl. Leakage current through measuring device with measuring range 1OmV / i = 1kOhm, maximum temperature by monitoring a temperature-dependent switch built into the secondary winding or resistance, possibly
Übergangswiderstand der Schleife Schutzleiter/Potentialausgleich. Contact resistance of the loop protective conductor / equipotential bonding.
Auf Knopfdruck oder durch eine Zeituhr (clock) werden die nachstehenden Messungen (Auswahl) durchgeführt, die ein Abschalten vom Netz erforderlich machen: - Isolationswiderstand durch eingebautes Meßgerät und Spannungswandler, - Schutzleiteranschluß'durch Messung des Übergangswiderstandes von 0,3 -Ohm bei einem Strom von 10 A entsprechend einer Speisung von 2 V.At the push of a button or by a clock, the following Measurements (selection) carried out that require disconnection from the grid: - Insulation resistance through built-in measuring device and voltage transformer, - Protective conductor connection through Measurement of the contact resistance of 0.3 ohms at a current of 10 A accordingly a supply of 2 V.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803001168 DE3001168A1 (en) | 1980-01-15 | 1980-01-15 | Automatic electrical equipment safety system testing - performed continuously as defined intervals, or on demand using dedicated circuits for testing e.g. isolation resistance and leakage current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803001168 DE3001168A1 (en) | 1980-01-15 | 1980-01-15 | Automatic electrical equipment safety system testing - performed continuously as defined intervals, or on demand using dedicated circuits for testing e.g. isolation resistance and leakage current |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3001168A1 true DE3001168A1 (en) | 1981-07-23 |
Family
ID=6092042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803001168 Withdrawn DE3001168A1 (en) | 1980-01-15 | 1980-01-15 | Automatic electrical equipment safety system testing - performed continuously as defined intervals, or on demand using dedicated circuits for testing e.g. isolation resistance and leakage current |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3001168A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2584550A1 (en) * | 1985-07-05 | 1987-01-09 | Baumer Electric Ag | PROXIMITY SENSOR |
-
1980
- 1980-01-15 DE DE19803001168 patent/DE3001168A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2584550A1 (en) * | 1985-07-05 | 1987-01-09 | Baumer Electric Ag | PROXIMITY SENSOR |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69122316T2 (en) | Sensor with insulated display device for faulty circuits | |
DE1081804B (en) | Fire alarm system | |
DE3001168A1 (en) | Automatic electrical equipment safety system testing - performed continuously as defined intervals, or on demand using dedicated circuits for testing e.g. isolation resistance and leakage current | |
DE1085925B (en) | Circuit arrangement for displaying faults in telecommunications equipment using rectifiers | |
DE3523805A1 (en) | CONTROL ARRANGEMENT AND METHOD FOR A DC POWER SYSTEM, ESPECIALLY A VEHICLE SYSTEM | |
DE3421829A1 (en) | Measuring method for checking protective measures in electrical installations and measuring instrument for carrying out the method | |
EP0240875B1 (en) | Testing device for measuring the contact resistance of an electrical connector between an energy source and an electrical apparatus | |
DE2855809C2 (en) | Device for automatic monitoring of the state of charge of a network-independent power supply and the humidity in the response device of a system for determining the location of traffic facilities | |
DE3712783A1 (en) | Method for checking the operability of a test device for high-voltage conductors and test device | |
DE1167229B (en) | Room protection system with measuring electrodes included in a bridge circuit and periodic checking of the system | |
DE602927C (en) | Fault indicator for three-phase four-wire meter that responds in the event of an interruption or short-circuit in one or two voltage coils | |
DE971423C (en) | Device for earth fault monitoring of circuits, in particular signal circuits in mining operations | |
DE2640929C2 (en) | Arrangement for testing the cable wiring of conveyor systems with peripheral equipment | |
DE1588924A1 (en) | Testing device for electronic protection and control elements | |
DE1176253B (en) | Circuit arrangement for testing residual current and residual voltage circuit breakers | |
DE9404607U1 (en) | All-pole protective conductor test facility with monitoring | |
DE1868745U (en) | TESTING EQUIPMENT FOR ELECTRICAL SYSTEMS, IN PARTICULAR RAILWAY SAFETY SYSTEMS, THE ASSEMBLIES OF WHICH ARE INSTALLED IN A FRAME. | |
DE1093478B (en) | Circuit arrangement for testing the continuity of the protective conductor with its connections to movable supply lines for electrical devices with an earthed socket outlet | |
DE2429564C3 (en) | Testing device for determining shortfalls between lines running next to one another | |
DE1072739B (en) | Device for testing protective contact sockets | |
DE102014218481A1 (en) | voltage detection system | |
AT240953B (en) | Circuit arrangement for testing residual current and residual voltage circuit breakers | |
DE1296261B (en) | Device for functional testing of relays or other controllable electromechanical switching devices | |
DE918319C (en) | Relay timing device | |
DE586987C (en) | Arrangement for testing and monitoring the insulation condition of certain points in telecommunication cable systems with the help of test lines, which are routed directly or indirectly to the deepest point of the joint to be monitored, the terminal to be monitored or the like |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: PHILIPS PATENTVERWALTUNG GMBH, 2000 HAMBURG, DE |
|
8139 | Disposal/non-payment of the annual fee |