5 of 164 Safety InstructionsDANGERDanger to life from electric shock!► Disconnect all devices and units from the power supply during installation.► In order to comply with the regulations for outdoor installation, it is recommended to havea residual current circuit breaker with a residual current of 0.03 A installed.► Make sure that modifications to electrical installations are only carried out by a specialist.Do not make any unauthorised changes yourself!WARNINGRisk of severe injuries during installation!► Wear sturdy shoes with non-slip soles.► Use a work platform.► Make sure that the person carrying out the installation/repair has a secure position tostand and hold on whilst working.► Make sure that the person carrying out the installation/repair does not suffer from vertigoand can move around safely on the roof or installation site.► Make sure that the roof is sufficiently stable.► Make sure that there is nobody below the antenna during installation.► Make sure that the roof and the climbing aid are dry, clean and non-slip.