Publication details
| Publication CODE |
Title |
| NBN EN IEC 61643-331:2018 (2018-03) |
COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 331: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR METAL OXIDE VARISTORS (MOV) |
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| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3. |
Description
IEC 61643-331:2017E) is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power line, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages. This specification applies to MOVs having two electrodes and hybrid overvoltage protection components. This specification also does not apply to mountings and their effect on the MOV's characteristics. Characteristics given apply solely to the MOV mounted only in the ways described for the tests. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Update of the nominal varistor voltage test method;
b) Addition of thermally protected varistors - component symbol and test methods;
c) Addition of nominal discharge current - test methods;
d) Addition of voltage ratings for disc types (Table 1);
e) Addition of test currents for clamping voltage of disc types (Table 2);
f) Addition of typical voltage ratings of SMD types (Table 3); and
g) Addition of Limited current and temporary overvoltage tests for thermally protected varistors.
Keywords: metal oxide varistors (MOV), high transient voltages.
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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 61643-331:2017.
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
Origin
| Committee |
TC 37/SC 37B
SPECIFIC COMPONENTS FOR SURGE ARRESTERS AND SURGE PROTECTIVE DEVICES
|
| Responsible |
De heer VAN HECKE Luk
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Approval
| BEC Approval |
2018-01-11 |
| NBN Approval |
2018-04-27 |
| Belgian Official Journal |
2018-06-11 |
| Registration |
185601 |
| ICS-Code (International Standards Classification) |
31.040
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2018-01-11 |
| Date of availability (d.a.v.) |
2018-03-16 |
| Date of announcement (d.o.a.) |
2018-04-11 |
| Date of publication (d.o.p.) |
2018-10-11 |
| Date of withdrawal former edition (d.o.w.) |
2021-01-11 |
|
Correspondences with international standards
| Relation |
International standard |
Date |
| is identical to |
EN IEC 61643-331:2018
|
2018-03-16 |
| is identical to |
IEC 61643-331:2017
|
2017-12-07 |
Relations to belgian/foreign publications
| Type |
Origin |
Code |
Date |
| Standard |
Belgium |
NBN EN 60068-1:2014 |
|
| Standard |
Belgium |
NBN EN 60068-2-20:2009 |
|
| Standard |
Belgium |
NBN EN 60068-2-21:2007 |
|
| Standard |
Belgium |
NBN EN 60068-2-78:2013 |
|
| Standard |
Belgium |
NBN EN 61000-4-2:2009 |
|
| Standard |
Belgium |
NBN EN 61643-11:2012 |
|
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