IT1297454B1 - Earthing system detecting and residual current circuit breaker testing electronic circuit - Google Patents
Earthing system detecting and residual current circuit breaker testing electronic circuitInfo
- Publication number
- IT1297454B1 IT1297454B1 ITPA970023A IT1297454B1 IT 1297454 B1 IT1297454 B1 IT 1297454B1 IT PA970023 A ITPA970023 A IT PA970023A IT 1297454 B1 IT1297454 B1 IT 1297454B1
- Authority
- IT
- Italy
- Prior art keywords
- residual current
- earthing
- test
- circuit breaker
- circuit
- Prior art date
Links
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
An electronic circuit is composed of two resistances of variable values, I.e. between 330 and 68 kilo-ohms and a light emitting diode, while the terminal points (4,5,6) of the circuit must be connected respectively to the phase, neutral and earth. The electric circuit is connected to a tool with a residual current circuit breaker and the test result is indicated by lighting of a colored light emitting diode : Independent claims are included for tools including electronic circuits, for an electrical safety and residual current test tool, for a plug with earthing/test connection to an appliance, for cables and extensions with permanent earthing control and for electrical safety/earthing test accessory for hand-held appliances.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPA970023 IT1297454B1 (en) | 1997-11-27 | 1997-11-27 | Earthing system detecting and residual current circuit breaker testing electronic circuit |
PCT/IT1998/000330 WO1999028755A2 (en) | 1997-11-27 | 1998-11-23 | Electronic circuits for detecting the earthing system and for testing the efficiency of residual current circuit-breakers connected to phase, neutral and earth of electrical users |
AU22467/99A AU2246799A (en) | 1997-11-27 | 1998-11-23 | Electronic circuits for detecting the earthing system and for testing the efficiency of residual current circuit-breakers connected to phase, neutral and earth of electrical users |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPA970023 IT1297454B1 (en) | 1997-11-27 | 1997-11-27 | Earthing system detecting and residual current circuit breaker testing electronic circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
ITPA970023A1 ITPA970023A1 (en) | 1999-05-27 |
IT1297454B1 true IT1297454B1 (en) | 1999-12-17 |
Family
ID=11388862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITPA970023 IT1297454B1 (en) | 1997-11-27 | 1997-11-27 | Earthing system detecting and residual current circuit breaker testing electronic circuit |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1297454B1 (en) |
-
1997
- 1997-11-27 IT ITPA970023 patent/IT1297454B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITPA970023A1 (en) | 1999-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |