The electrical systems and equipment may only be put into operation if they are in proper condition (see Sec. 5(1) Electrical systems and equipment DGUV-V 3). According to the Ordinance on Industrial Safety and Health, work equipment must be checked for defects before use so that it is ensured to the extent possible that they are free of defects during use.
If defects are found which affect the safety of employees or guests, the work equipment may not be used (see Sec. 11 DGUV V1, correspondingly for the place of assembly in accordance with Sec. 37 of the Assembly Venue Ordinance).