Electrical systems for public lighting with high energy efficiency and high technological content

Public lighting systems consist in a complex of different technical systems: lighting, electrical, mechanical and electronic. The presence of electrical components and power lines exposed to atmospheric stresses and accessible to all citizens determines a situation of electrical risk that must be managed during the entire life cycle of the system: design, installation and maintenance, in order to guarantee the highest level of safety for all. The paper suggests energy and safety criteria useful for the optimized design of the system andto improve its maintainability. The prospected energy performance of the system can be considered as an important design criterion. The adoption of a class II insulation system needs special requirements for the check of its performance during the life. The paper suggests the adoption of a special smart panel with a special component useful to make the periodic insulation verification.