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Experimental verification of a new method of loop resistance testing in low voltage systems with residual current devices
Abstract
A periodical verification of the effectiveness of protection against electric shock shall be performed in low voltage systems. The scope of this verification includes loop impedance/resistance testing. If a residual current device is installed in a tested circuit, this testing is problematic. A residual current device trips out during the test, because of the high value of measurement current. This precludes the execution of the test. In the paper a new method of loop resistance testing in low voltage systems is presented. Experimental verification of this method has proved that it enables performing the evaluation of the effectiveness of protection against electric shock without nuisance tripping of residual current devices. The advantage of this method is the high value of the measurement current – many times higher than the rated residual operating current of commonly used residual current devices. It is very important in terms of measurement accuracy.
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- Category:
- Conference activity
- Type:
- materiały konferencyjne indeksowane w Web of Science
- Title of issue:
- 21st IMEKO TC-4 International Symposium on Understanding the World Through Electrical and Electronic Measurement, and 19th International Workshop on ADC Modelling and Testing strony 245 - 250
- Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Czapp S., Borowski K..: Experimental verification of a new method of loop resistance testing in low voltage systems with residual current devices, W: 21st IMEKO TC-4 International Symposium on Understanding the World Through Electrical and Electronic Measurement, and 19th International Workshop on ADC Modelling and Testing, 2016, ,.
- Verified by:
- Gdańsk University of Technology
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