Telephone: +41 22 02 11 Telefax: +41 22 03 00 E-mail: [email protected] Web: INTERNATIONAL. STANDARD. IEC. Third edition. So how many are aware of the difference between these two Standards? I had these highlighted to me a few years ago and it was news to me. BS EN applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which.
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BS EN Low-voltage switchgear and controlgear. Circuit-breakers
What is the right thing to say if they questioned us why we offered 6kAIC breaker? Reply Hello Jonas, No, your statement is not correct. Thanks Reply Thank you for the useful infprmation. Yes Hagar and Eaton will make devices to both Standards so when filling out certs we should be stating 69047-2 are installed.
I was aware of the IEC standards of identical designations but didn’t know British Standards had adopted them. Is there more in common? Reply I have started working in the industrial sector and am having trouble completing test 609447-2 for installations fed from panels.
No, create an dn now. I have started working in the industrial sector and am having trouble completing test certs for installations fed from panels.
IEC AND IEC a tale of two standards
Hello Lim, It is higher because of lower Icu breaking capacity ratio to service breaking capacity Ics, eg. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
Supplementary requirements for circuit-breakers used as direct-on-line starters are given in IECapplicable to low-voltage contactors and starters.
IEC covers all the types of the breakers: I am in search of complete MCCB test procedure with graphical explanation. Want access to British Standards? Kindly let me know if it is available on the Schneider site appreciate if Schneider can up load a youtube video Reply Dear Sumedha, Test procedures are explained in the mentioned standards. In any case you should eb attention on technical characteristics of devices like: Reply Hello Lim, It is higher because of lower Icu breaking capacity ratio to service breaking capacity Ics, eg.
What this A or A meaning. MarvoSep 3, As for IECit relates to the a.
The requirements and test methods for electromagnetic compatibility of circuit-breakers are contained in Annex J. In other words — in final distribution een switchboards of buildings which nominal current does not exceed A. The Red document status indicator indicates that the document is an old version The document has likely been withdrawn by the publisher, also the meta data 609477-2 here may be out of date as it is no longer being maintained by the editorial teams at NBS.
Consequences can be dire if residential CBs are used instead of industrial ones. Blogger Directory View All Posts. Reply Thanks for useful information!!! Dear Sumedha, Test procedures are explained in the mentioned standards. This is the reason why manufacturers in addition provide a wide scope of different curves: I had these highlighted to me a few years em and it was news to me.
Reply Good 06947-2 making Technical specification for electrical tender. NOTE Circuit-breakers which are dealt with in this standard may be provided with devices for automatic opening under predetermined conditions other than those of over-current and undervoltage as, for example, reversal of power or current. Really very useful information. If you need 15kA accordingplease check with local offer available, typically it is range of C Icu is given only for range 5SY8.
Reply Thanks for your reply.
Usually these circuit breakers sold by electrical retailers: Stephen, the Max Zs value is not always published in technical guides. Technical Documents White Papers. Pollution degree 2, impulse voltage 4kV, isolation voltage is the same as nominal voltage V.
Users found this page by searching for: Reply i like this Reply I have never confused them yet maybe because its not much since I started working. Just those basic tech specs tell us how different the use of circuit breakers defined by our two standards are. Do you already have an account? Reply Kevin, You should keep it simple: The best way to avert them is tightly worded, highly enforced national regulations. For certain specific applications for example traction, rolling mills, marine service particular or additional requirements may be necessary.
Posting a message to the forum will remove the above advertisement. This standard does not deal with the verification of operation under such pre-determined conditions.
I can say is that mix-ups of standards happen. Hello Jonas, No, your statement is not correct. And for prescribers to specify what CBs will be used for and then to check the standard for that use.