Basics of IEC 61439 / EN 61439 Legal Basis of LVD 2014/35/EU* Compliance with this legal basis is confi rmed by the declaration of conformity by the manufacturer of a switchgear assembly. Reference to EN 61439 implies that the basic requirements of the directive have been met. If the legal requirements are not met, the purchaser has no liability protection! EU only In the European Union, the Low Voltage Directive LVD 2014/35/EU forms the legal basis for all electrical equipment between 50 and 1000 V a.c., or 75 and 1500 V d.c.
If harmonized standards are not applied, the manufacturer of the switchgear assembly has a duty to establish compliance with the above protection objectives by appropriate means. This directive pursues the pro- tection objective that electrical equipment must not jeopardize the safety of persons, livestock, and the preservation of property, and refers to the harmonized standards, which are published in the Offi cial Journal of the EU.
*LVD = Low Voltage Directive Structure of IEC 61439 / EN 61439 IEC/TR 61439-0 Planning guide for low-voltage switchgear assemblies IEC 61439-1 / EN 61439-1 General requirements for low-voltage switchgear assemblies IEC 61439-1 / EN 61439-1 is a general part which must be read in conjunction with the product section IEC 61439-2 to -7 / EN 61439 -2 to -7. Does not include product- specifi c requirements. Describes operating conditions, assembly requirements, technical properties and requirements, as well as verifi cation options for low- voltage switchgear assemblies and lists the terms used. New terminology of product responsibility:
Original manufacturer (system manufacturer) and manufacturer of switchgear assembly (panel builder) with new regulation for product responsibility. More safety through the defi nition of requirements for switchgear assemblies that affect the construction of the system, e.g. rated short-time withstand current, current carrying capacity, resistance to temperature rise. More safety by determining the rating data that are essential for the function of a switchgear assembly under operating conditions. For this purpose, the switchgear is considered as a BLACK BOX.
5 IEC 61439-2 / EN 61439-2 Power switchgear and controlgear assembly (PSC) IEC 61439-3 / EN 61439-3 Distribution boards intended to be operated by ordinary persons (DBO) IEC 61439-4 / EN 61439-4 Construction site distributors C 61439-5 / EN 61439-5 ble Distribution Cabinets IEC 61439-6 / EN 61439-6 Busbar distributors IEC/TS 61439-7 Distributor for camping, market places, marinas and charging stations for electric vehicles