Internal Lightning Protection

Image

Internal Lightning Protection

OBO lightning and surge protectors are classified into type 1, type 2 and type 3 (previously B, C and D), which conform to the different requirements with regard to location, protection level and surge current arresting capacity. This selective lightning and surge protection guarantees a low protection level and a high arresting capacity. The classification satisfies the requirements of DIN EN 61643-11 and other international regulations. These standards contain building regulations as well requirements and tests for surge arresters used in AC networks with nominal voltages of up to 1.000 V and nominal frequencies of between 50 and 60 Hz.