This part of IEC 62561 specifies the requirements and tests for devices intended to count the number of lightning strikes based on the current flowing in a conductor. This conductor may be part of a lightning protection system (LPS) or connected to an SPD installation or other conductors, which are not intended to conduct a significant portion of lightning currents. LSCs for use in hazardous atmospheres, extra requirements for the components may be necessary to be taken. NOTE In CENELEC countries, testing requirements of components for explosive atmosphere are specified in CLC/TS 50703-2.