CENELEC EN 61439-3 (FAULTY STANDARD) Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO) - Incorporating corrigendum September 2013
Данный раздел/документ содержится в продуктах:
- Техэксперт: Машиностроительный комплекс
- Картотека зарубежных и международных стандартов
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- Картотека зарубежных и международных стандартов
European Committee for Electrotechnical Standardization
(FAULTY STANDARD) Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO) - Incorporating corrigendum September 2013
N EN 61439-3
Annotation
This part of IEC 61439 defines the specific requirements for distribution boards intended to be operated by ordinary persons (DBO).
DBOs have the following criteria:
– intended to be operated by ordinary persons (e.g. switching operations and replacing fuse-links), e.g. in domestic (household) applications;
– outgoing circuits contain protective devices, intended to be operated by ordinary persons, complying e.g. with IEC 60898-1, IEC 61008, IEC 61009, IEC 62423 and IEC 60269-3;
– rated voltage to earth does not exceed 300 V a.c.;
– rated current (Inc) of the outgoing circuits does not exceed 125 A and the rated current (InA) of the DBO does not exceed 250 A;
– intended for the distribution of electrical energy;
– enclosed, stationary;
– for indoor or outdoor use.
DBOs may also include control and/or signaling devices associated with the distribution of electrical energy.
This standard applies to all DBOs whether they are designed, manufactured and verified on a one-off basis or fully standardised and manufactured in quantity.
DBOs may be assembled outside the factory of the original manufacturer.
