In order to monitor the operation of the SS device properly, amongst other things, a quality analysis of the lighting influence is important. The effect of the lighting on the operation of the SS device can be easily monitored using a LLS system. The advantage of the LLS system its connection to the actual geographic data which allows using data from the database for the exact part of the railway track. Therefore, it is advisable to use data from the LLS database for the purpose of designing a system protection from lighting. The goal of this procedure is to analyze the impact of the lighting discharge on the operation of the SS device. The actual lighting events from the railway level crossing “Fratrov” and “Žitnić 2” have been presented. Furthermore, it is necessary to perform measurements in accordance with the applicable standards, so that a proper quality control of each ground resistance value could be performed. In order to perform a proper quality control of each ground resistance value, it is necessary to perform measurements in accordance with the applicable standards. In addition, for the purpose of proper recording of the ground resistance, it is necessary to make official metering lists accessible in the official places. In the case of determining time schedules for measuring ground resistance on SS devices, it is important to take into account the number of hours required for this type of measurement in order to ensure adequate maintenance staff. In the case of using FID switch and surge protection combination, it is recommended to use the FID switch with time delay as it prevents the possibility of unwanted disconnection due lighting. Surge protection needs to be controlled regularly. After connecting overvoltage to the ground by the surge protection, sometimes certain elements still continue to be connected to the ground. The state, in which surge protection elements continually achieve a ground-based connection (without overvoltage), causes the earth fault that consequently disables the proper work of the IT system. The condition, in which the overvoltage protection elements are defective after lighting, at the first subsequent lighting the overvoltage will not be grounded, which will result in the burnout of the SS elements. It is important to point out that quality preventive maintenance, reduces the harm that can be caused by lighting.