In proximity to overhead electric lines, work is permissible only if
- it is assured that the lines do not carry any electric voltage while work is being carried out;
- the height and operating range of the work equipment used prevents it from coming close to overhead electric lines;
- thanks to technical (i.e. barriers) or organizational measures (i.e. warning devices) physical proximity is prevented during such work.
- Only persons having the required technical qualifications may be employed.