Low-voltage switchgear and controlgear assemblies - Distribution boards intended to be operated by ordinary persons (DBO) Ingestion-build-95349 or lessees with a reasonably

or lessees with a reasonably long period of interest in the property and/or responsibility for maintenance and /or operational costs

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notification and enroute obstacle lighting

and of the remedies required to maintain efficiency and maximize the life of the hot water central heating system

Low-voltage switchgear and controlgear assemblies - Distribution boards intended to be operated by ordinary persons (DBO) Ingestion-build-95349 or lessees with a reasonablyWhat 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