Safety measures of electric installation maintenance (all-Union State Standard 12.1.019-79)

Safety of electric installation maintenance must be provided by:

- electric installations construction;

- technical methods and protective means;

- organizational and technical arrangements.

The technical methods and protective means, that provide electric safety, are ought to set taking into account:

a) nominal voltage, current type and frequency used by electro-installations;

b) power supply method (from stationary network of the electric power, from autonomous power source, etc);

c) neutral mode (middle point) of electric power source (isolated or earthed neutral);

d) execution type (stationary, movable, portable);

e) conditions of external environment:

- specially dangerous workplaces,

- workplace of raised danger,

- workplace without raised danger,

- in the open air;

f) possibilities for voltage taking down from current conducting parts, on which or not far from which a work ought to be fulfilled;

g) disposition of possible human touch to current curcuit elements;

- monophase (unipolar) touch,

Потім вказати, як передбачене підключення об'єкта, що проектується, до системи електропостачання ПК або до мережі змінного струму, до якої системи ланцюга, мережі. При цьому потрібно керуватися вимогами Правил улаштування електроустановок - ПУЭ - 86, ПТЭ і ПТБ та ГОСТ 12.1.019-79.