You'll learn the four-part standard structure, risk assessment calculations determining protection level requirements, protection zone concept for coordinated surge protection, Lightning Protection System (LPS) classes I-IV with corresponding design parameters, and component selection. . You'll learn the four-part standard structure, risk assessment calculations determining protection level requirements, protection zone concept for coordinated surge protection, Lightning Protection System (LPS) classes I-IV with corresponding design parameters, and component selection. . irst, risks should be evaluated: R1, R2, R3, R4. According to the level of risk, a certain level of protection should be adopted. Jurisdiction must define a so-called Tolerable risk Rt and it's im-portant that the c when lightning hits the air termination system. The LPS is formed by the lightning. . The IEC 62305 standard series represents the most comprehensive international framework for lightning protection system (LPS) design, superseding numerous national standards and providing unified methodology for protecting structures and systems against lightning effects. For solar installations. . Section 4. In addi-tion, adequate lightning protection measures are listed in the German VdS. . What are lightning protection levels (LPL)? The different Lightning Protection Levels (LPL), only refer to the type I arrester and its impulse current 10/350 µs. The inverters are classified as hav ng Type III (class D) protection (limited protectio ; 10 kWp) and that surge protection measures be taken.