This checklist is intended to ensure that lightning protection systems (lps) are installed, operated, and maintained in accordance with the requirements outlined in ms iec 62305. Poor or high resistance connections to ground are the leading cause of lightning system failure for each. What are lightning protection classes (lpl)?
The standard specifies four levels of protection, with np1 providing the strongest protection and np4 the most basic. As a result of these factors, buildings and structures became divided into classes (protection levels), which differ in the severity of possible damage from being struck by lightning. The different lightning protection classes, also known as lightning protection levels (lpl), only refer to the type i arrester and its impulse current.
The lightning protection system must be solidly and permanently grounded. Four levels of protection (np1 to np4): For general user power supply system to run equipment, a combination of the type 1 and type 2 lps protection is enough. Each level is designed to withstand.
The purpose of having different lps. Lighting protection level are divided into four categories. The four classes of lps i, ii, iii and iv are determined using a set of construction rules including dimensioning requirements which are based on the relevant lightning protection. For each category, a set of maximum and minimum lightning current parameters is fixed (lpl i to iv).
The class of lps is stated in iec standards, which classifies the lightning protection system into four classes based on their intended level of protection.