For protecting consumer systems against direct lightning strikes to the overhead line feed or to the external lightning protection system (IEC 62305), application in accordance with IEC 60364-5-53 Clause 534, test class I in accordance with IEC 61643-1, SPD type T1 in accordance with EN 61643-1, encapsulated design: no hot ionized gases are emitted during the discharge process. Therefore, no safety distances to flammable materials need to be observed
