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IEC 61643-351 Ed. 1.0 b:2016

Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
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IEC 61643-351 Ed. 1.0 b:2016

Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)

PUBLISH DATE 2016
PAGES 58
IEC 61643-351 Ed. 1.0 b:2016
Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
IEC 61643-351:2016 defines test circuits and test methods for determining and verifying the SIT surge parameters. Preferred performance values for key parameters are given. Surge isolation transformers (SITs) are used for signal transformer applications with signal levels up to 400 V peak to peak. SITs are transformers, with or without an internal-winding screen, with a rated impulse withstand voltage greater than the peak voltage of the expected common-mode surge environment. SITs are applicable to components for surge protection against indirect and direct effects of lightning or other transient overvoltage. SITs are used to mitigate the onward propagation of common-mode voltage surges. This part of IEC 61643 does not cover SIT operation under differential-mode lightning surge conditions. Keywords: Surge isolation transformers (SITs)
SDO IEC: International Electrotechnical Commission
Document Number IEC 61643
Publication Date Oct. 1, 2016
Language b - English & French
Page Count 58
Revision Level 1.0
Supercedes
Committee 37B
Publish Date Document Id Type View
Oct. 1, 2016 IEC 61643-351 Ed. 1.0 b:2016 Revision
Oct. 1, 2016 Revision