The IEC standard for electrical panels “Assemblies of protection and low voltage switching devices” is EN 61439-1 (CEI 17-113) which replaced the old 60439-1 and applies to any type of low voltage switchgear, regardless of size and shape (classical power panels, busbar ducts, building boards, etc.).. For this kind of switchgear, the nominal voltage must not exceed 1000 V in alternating current and 1500 V in direct current.
How should the electrical panels according to the IEC
Based on their installation and location, the electrical panels can be fixed, movable and transportable, open, indoor or outdoor, while depending on their function they can be control, distribution, generation, transformation and regulation. Our control panels comply with IEC EN 61439-1 and IEC EN 60204-1 “Safety of machinery. Electrical equipment of machines. General rules”. To the realization of the finished framework only one subject assumes all responsibility for compliance with the regulations in force, ie the manufacturer, whose name must also be reported on a plate attached to the electrical panel itself.
The evolution of modern electrical panels
The IEC standard for electrical panels defines the electrical panel as a complex element composed of mechanical components with the function of protection and support of all the equipment contained within them, electrical equipment, which includes the command, maneuver and control instruments, and segregations, that is internal subdivisions through insulating barriers. Over the years, the electrical panel has abandoned the function of simple container assuming also that of a system composed of different devices with the aim of making the system functional and safe. An electrical panel is considered compliant with IEC 61439-1 if at least one of the verification procedures has been performed on it through laboratory tests, calculations and elaborations of project rules.