Annex III of NR10 – Training


I – For authorized workers: minimum course load – 40 hours:

Minimum Program:

1. Introduction to Electrical Safety.
2. Risks in electrical installations and services:
a) electric shock; mechanisms and effects;
b) electric arcs; burns and falls;
c) electromagnetic fields.
3. Techniques for Risk Analysis.
4.Electrical Risk Control Measures:
a) de-energization.
b) functional grounding (TN / TT / IT); protection; temporary;
c) equipotentialization;
d) automatic isolation system;
e) residual current devices;
f) extra-low voltage;
g) barriers and enclosures;
h) blockages and impediments;
i) obstacles and shields;
j) insulation of live parts;
k) double or reinforced insulation;
l) placing out of reach;
m) electrical separation.
5. Brazilian Technical Standards (NBR) in ABNT: NBR-5410, NBR 14039 and others;
6. Regulations of the MTE:
a) NRs;
b) NR10 (Safety in Electrical Installations and Services);
c) qualification; training; capacity development and authorization;
7. Collective protective equipments.
8. Personal protective equipments.
9. Work routines – Procedures.
a) de-energized installations;
b) released for services;
c) tag out;
d) inspection of areas, services, tools and equipments.
10. Documentation of electrical installations.
11. Additional risks:
a) height;
b) confined spaces;
c) hazardous areas;
d) humidity;
e) atmospheric conditions.
12. Fire protection and fighting :
a) basics;
b) preventive measures;
c) methods of extinguish;
d) practice;
13. Accidents with electrical origin:
a) direct and indirect causes;
b) case discussions;
14. First aid:
a) notions on injuries;
b) prioritization of patient care;
c) application of artificial respiration;
d) cardiac massage (CPR);
e) techniques for removal and transportation of injured;
f) practices.


It is prerequisite to participate, with satisfactory use, in previously defined basic course in order to attend this additional course.

Minimum course load – 40 hours

(*) These topics will be developed and specifically tailored to the work conditions characteristic to each branch, operation patterns, voltage level and other peculiarities specific to the special type and condition of activity, regarding to the hierarchy in the worker’s technical improvement.

I – Minimum Program:
1. Organization of the Electric Power System (SEP).
2.Work organization:
a) scheduling and programming of the services;
b) teamwork;
c) log book and register of the installations;
d) work methods; and
e) communication.
3. Behavioral aspects.
4. Impeditive conditions for services.
5. Typical risks in SEP and prevention(*):
a) proximity and contact with energized parts;
b) induction;
c) atmospheric discharges;
d) static;
e) electric and magnetic fields;
f) communication and identification; and
g) working at height, special machines and equipments.
6. Risk analysis techniques in SEP.(*)
7. Work procedures – analysis and discussion.(*)
8. Techniques of working under the energized parts:(*)
a) live lines;
b) potential difference;
c) indoors;
d) work from distance;
e) night works; e
f) underground environments.
9. Work equipments and tools (selection, use, maintenance, checking, testing)(*).
10. Collective protective systems(*).
11. Personal protective equipments(*).
12. Postures and clothings (*).
13. Vehicle safety and transportation of people, materials and equipments(*).
14. Marking and isolation of work areas(*).
15. Releasing installations for service, operation and use(*).
16. Training on techniques for removal, care, transportation of injured (*).
17. Typical accidents (*) – Analysis, discussion, protective measures.
18. Responsibilities (*).