Working alone, but not left alone
Personal security at dangerous workplaces by means of deliberate and automatic alerting with locating of victims
Working alone with potential hazards is part of everyday life in many areas, for example for security personnel on night-time patrols, product and process controls in cold rooms, boilers or low-oxygen locations, or maintenance and cleaning work in confined containers.
If dangerous work is carried out by one person alone, the employer is obliged to ensure suitable technical and organisational personal safety precautions. The employers' liability insurance associations provide relevant guidelines to ensure that in an emergency the necessary assistance or rescue can be called and directed to the place of action in time.
In case of an increased hazard, the use of a Personal Alarm Signal System according to the German DGUV-112-139 (formerly BGR 139) is recommended or is even necessary in case of critical hazards. It must also be possible to trigger the chain of rescue if the injured person is unable to act and no one has noticed the accident.