| Publication CODE |
Title |
| NBN EN 61643-351:2017 (2017-02) |
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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| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3 P.. |
Description
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)
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| Class |
C
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Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 61643-351:2016.
For the series NBN EN 50XXX, the standards are however complete.
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DE version
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EN version
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FR version
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|
| Status |
Registered trilingual Belgian standard EN or FR or DE |
| Situation |
Currently active
|
|
| Committee |
TC 37/SC 37B
SPECIFIC COMPONENTS FOR SURGE ARRESTERS AND SURGE PROTECTIVE DEVICES
|
| Responsible |
De heer VAN HECKE Luk
|
| BEC Approval |
2016-12-02 |
| NBN Approval |
2017-03-22 |
| Registration |
176220 |
| ICS-Code (International Standards Classification) |
33.040.99
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2016-12-02 |
| Date of availability (d.a.v.) |
2017-02-10 |
| Date of announcement (d.o.a.) |
2017-03-02 |
| Date of publication (d.o.p.) |
2017-09-02 |
| Date of withdrawal former edition (d.o.w.) |
2019-12-02 |
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