BS EN 61439-3:2012 PDF Download
Standard EN Sample
Low-voltage switchgear and controlgear assemblies. Distribution boards intended to be operated by ordinary persons (DBO)
Also Known As:
What is this standard about?
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.
| Descriptors | Consumer units, Domestic electrical installations, Indoor electric equipment, Design, Switchboards (switchgear), Corrosion tests, Temperature rise, Fuseboards, Electric control equipment, Ratings, Specimen preparation, Switchgear, Type testing, Low-voltage equipment, Thermal testing, Fire tests, Heating tests |
| ICS Codes | 29.130.20 - Low voltage switchgear and controlgear |
| Language(s) | English |
| ISBN | 978 0 539 04457 7 |
| File Size | 1.0 MB |
