Technical Name: NR 10 TRAINING COURSE – SAFETY IN ELECTRICAL INSTALLATIONS AND SERVICES – TAUGHT IN ENGLISH
Reference: 214007
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What Is the Purpose of the NR-10 English Course?
The NR-10 English Course, or Regulatory Standard No. 10, is a Brazilian standard that establishes safety guidelines for work in electrical installations and services. It was created by the Ministry of Labor and Employment (MTE) and aims to ensure the protection and health of workers who perform activities involving electricity, preventing accident risks such as electric shocks, fires, and explosions.
NR-10 is essential for ensuring safety in activities involving electricity, preventing accidents and maintaining operational continuity. The NR-10 course in English focuses on training professionals to work safely in compliance with legislation, through the identification and control of electrical risks.
The standard seeks to ensure that workers have practical and technical knowledge to preserve their physical integrity and the integrity of facilities. Therefore, its application is a shared responsibility between employers and workers, involving the provision of training and strict adherence to safety practices.
What Is NR-10?
NR-10 (Regulatory Standard No. 10), established by the Ministry of Labor, defines the minimum requirements and conditions to ensure the safety and health of workers who work in electrical installations and services, covering both low- and high-voltage systems.
This standard guides the planning, execution, and control of electrical activities, focusing on essential aspects such as risk analysis, mandatory use of PPE and safety devices, technical qualification, signage of energized areas, documentation organization (installation records), and emergency procedures, ensuring safer, more organized, and legally compliant work environments. In this way, NR-10 promotes a safer work environment in compliance with current legislation.
Therefore, NR-10 standardizes and professionalizes how electrical work is carried out in Brazil, being mandatory for any company or professional who works directly or indirectly with electrical systems.

What Types of Electrical Installations and Services Exist?
The types of installations and electrical services covered by NR 10 are broad and involve all stages of the electrical cycle, from power generation to final consumption. In addition, this scope ensures that any activity involving electrical risk is regulated by the standard. Therefore, the main types are highlighted below:
Electrical Installations (fixed and mobile):
Power generation installations:
Hydroelectric, thermoelectric, solar, and wind plants.
Backup systems such as generators.
Transmission and distribution installations:
High-voltage transmission lines.
Overhead and underground distribution networks.
Building and industrial installations:
Electrical panels, distribution boards, and busbars.
Lighting systems, outlets, motors, transformers, etc.
Temporary installations:
Construction sites, events, temporary maintenance.
Mobile installations such as platforms, containers, mobile units.
Automation and control systems:
PLCs, frequency inverters, sensors, and supervisory systems.
Energized data networks (e.g., PoE).
Electrical Services:
Electrical projects and assemblies;
Inspections, tests, and measurements (thermography, grounding, insulation resistance);
Operations in energized or de-energized installations (switching, lockout, interventions);
Preventive, corrective, and predictive maintenance;
Installation and replacement of electrical components and equipment;
Commissioning and decommissioning of electrical systems;
Electrical safety and continuity tests;
Risk analyses and preparation of technical reports.
What Are the Main Points of NR 10 – Safety in Electrical Installations and Services?
Scope: The standard applies to all activities carried out in electrical installations, including the generation, transmission, distribution, and use of electrical energy.
Responsibilities: NR 10 establishes that both employers and workers have responsibilities regarding electrical safety. The employer must provide a safe work environment and adequate training, while workers must follow safety guidelines.
Safety Measures: The standard establishes several protection measures, including:
Adoption of protective devices (such as circuit breakers and fuses)
Use of Personal Protective Equipment (PPE).
Adequate signage in risk areas.
Periodic maintenance of electrical installations.
Training: It is mandatory for workers who deal with electricity to receive specific training addressing the associated risks and the safe practices they must adopt.
Documentation: NR 10 requires companies to maintain records of inspections and maintenance of electrical installations, in addition to documents that prove the qualification of the professionals involved.
When Is the NR 10 English Course Applied – Safety in Electrical Installations and Services?
The NR 10 English Course is applied whenever there are activities with electrical risk, covering everything from power generation to energy consumption. It is mandatory in industrial environments, construction sites, electrical maintenance, hospitals, areas with critical equipment, and explosion-risk zones. It also applies in training programs and educational institutions to promote a culture of electrical safety among professionals who work in international contexts.
What Are the Control Measures in the NR 10 English Course – Safety in Electrical Installations and Services?
The control measures of NR 10 include essential strategies and procedures to protect the health and safety of workers who handle electricity, aiming to reduce accident risks as much as possible. Therefore, these practices must be followed rigorously to ensure both the safety of professionals and the integrity of electrical installations.
De-energization and Lockout
De-energization: Whenever possible, services must be performed in de-energized installations (without electrical current), which eliminates direct risk.
Lockout and Tagout System: In this process, lockout and tagging devices are applied to ensure that the system cannot be accidentally re-energized during the work.
Personal Protective Equipment (PPE)
Essential PPE: The use of PPE such as insulating gloves, helmets, protective glasses, and insulated footwear is indispensable for worker safety in electrical operations.
PPE Testing: It is crucial to test this equipment and ensure that it fully complies with established safety specifications.
Collective Protective Equipment (CPE)
Barriers, Signaling, and Insulating Protections: These elements are used to clearly delimit and signal risk areas, helping to prevent accidental exposure.
Insulated Tools: The use of appropriate tools such as insulated pliers and screwdrivers offers protection against electric shock, increasing safety during activities.
Training and Qualification
Specific Training: All workers involved must undergo specific training, such as the NR 10 course, which addresses safety procedures and risk awareness.
Qualification and Renewal: Additionally, workers must complete this qualification and renew it periodically, especially for tasks involving high-voltage activities, ensuring constant updates on safety practices.

What Are the Benefits of Applying the NR-10 Standard?
NR-10 reduces electrical accidents, ensures legal compliance, prevents fines and lawsuits, and standardizes technical procedures. It values trained professionals, integrates with other standards (such as NR 12 and ISO 45001), increases the reliability of installations, and strengthens document management for audits. In summary: more safety, efficiency, and legal protection for the company.
Check the main benefits:
Reduction of Electrical Accidents
Effective prevention against electric shocks, arc flashes, and burns.
Reduction of fatal accidents through technical and administrative controls.
Legal Compliance and Avoidance of Fines
Meets the obligations established in the Regulatory Standards of the Ministry of Labor.
Prevents fines, shutdowns, and legal actions due to negligence in electrical safety.
Standardization of Procedures
Establishes technical routines, risk analyses, and work permits.
Ensures traceability, uniformity, and control in activities involving electricity.
Professional Valorization
Trains workers to perform with greater responsibility and technical skill.
Enables the professional to access energized areas and perform critical services.
Integration with Other Standards
Compatible with NR 01, NR 12, NR 33, and ISO 45001.
Strengthens integrated occupational health and safety management.
Increase in Operational Reliability
Improves preventive maintenance and reduces failures and unexpected shutdowns.
Increases the availability and performance of electrical systems.
Support for Audits and Inspections
Promotes document management with updated records, reports, and training.
Facilitates approval in audits and continuous improvement processes.
What Are the Consequences of Not Taking the NR-10 Course?
Failure to apply NR-10 – Safety in Electrical Installations and Services – results in serious, immediate, and structural consequences for workers, companies, and technical supervisors. Therefore, among the main impacts, the following stand out:
Increase in Serious Accidents: Greater risk of shocks, burns, explosions, and therefore deaths due to failure in electrical risk prevention.
Legal Liability: Possibility of civil and criminal lawsuits against the company and the technical supervisor for negligence.
Fines and Shutdowns: Administrative sanctions and shutdowns imposed by labor inspectors.
Labor Lawsuits: Legal claims due to accidents or leave, resulting in indemnities and pensions.
Loss of Insurance Coverage: Insurance companies may deny claims due to noncompliance with standards.
Damage to Image and Reputation: Damage to credibility in contracts, certifications, and institutional relationships.
Technical Failures and Operational Downtime: Increase in electrical failures, rework, waste, and production losses.

What Is the Importance of the NR-10 Course?
The NR-10 Course is essential for anyone working with electricity, ensuring safety in activities and compliance with the requirements of the Ministry of Labor. It teaches about electrical risks, use of PPE, and correct procedures, and it is mandatory for accessing energized areas.
In addition to meeting legislation, the training enhances the professional’s value, reduces accidents, and integrates with other standards such as NR 33 and NR 35, expanding qualification and operational safety. It is a strategic advantage in the job market.
Click the Link: Criteria for Issuing Certificates According to the Standards
Certificate of completion
NR 10 English Course
TRAINING COURSE NR 10 – SAFETY IN ELECTRICAL INSTALLATIONS AND SERVICES – TAUGHT IN ENGLISH
Workload: 40 Hours
Module 1: (2 HOURS)
Introduction to Electrical Safety
Module 2: (6 HOURS)
Risks in Electrical Installations and Services
a) Electric shock, mechanisms, and effects
b) Electric arcs; burns and falls
c) Electromagnetic fields
Module 3: (4 HOURS)
Risk Analysis Techniques
Module 4: (8 HOURS)
Electrical Risk Control Measures
a) De-energization
b) Functional grounding (TN/TT/IT); protective; temporary
c) Equipotential bonding
d) Automatic power disconnection
e) Residual current devices
f) Extra-low voltage
g) Barriers and enclosures
h) Lockout and impediments
i) Obstacles and shields
j) Insulation of live parts
k) Double or reinforced insulation
l) Placing out of reach
m) Electrical separation
Module 5: (3 HOURS)
Brazilian Technical Standards – ABNT NBR
NBR-5410, NBR 14039 and others
Module 6: (3 HOURS)
Ministry of Labor Regulations
a) Regulatory Standards (NRs)
b) NR-10 (Safety in Electrical Installations and Services)
c) Qualification, certification, training, and authorization
Module 7: (2 HOURS)
Collective Protective Equipment
Module 8: (2 HOURS)
Personal Protective Equipment
Module 9: (3 HOURS)
Work Routines – Procedures
a) De-energized installations
b) Work authorization
c) Signaling
d) Inspections of areas, tasks, tools, and equipment
Module 10: (2 HOURS)
Electrical Installation Documentation
Module 11: (3 HOURS)
Additional Risks
a) Work at height
b) Confined spaces
c) Indoor areas
d) Humidity
e) Atmospheric conditions
Module 12: (3 HOURS)
Fire Protection and Firefighting
a) Basic concepts
b) Preventive measures
c) Extinguishing methods
d) Practice
Module 13: (2 HOURS)
Electrical-Origin Accidents
a) Direct and indirect causes
b) Case discussions
Module 14: (4 HOURS)
First Aid
a) Notions of injuries
b) Prioritizing care
c) Application of artificial respiration
d) Cardiac massage
e) Techniques for removing and transporting injured individuals
f) Practice
Module 15: (1 HOUR)
Responsibilities
Completion and Certification:
Practical Exercises:
Evidence Records;
Theoretical Assessment;
Practical Assessment (When contracted);
Certificate of Participation.
Observation: The content presented follows the guidelines established by NR-10 (Regulatory Standard No. 10), which addresses safety in electrical installations and services. The purpose of the standard is to ensure the physical integrity of workers and prevent accidents involving electricity through safety measures and training.
NOTE:
We emphasize that the General Normative Program Content of the Course or Training may be modified, updated, with items added or removed as necessary by our Multidisciplinary Team. Our Multidisciplinary Team is authorized to update, adjust, modify, and/or remove items, as well as include or exclude Standards, Laws, Decrees, or technical parameters they deem applicable, whether related or not. The Contractor is responsible for ensuring compliance with all applicable legislation.
NR 10 English Course
NR 10 English Course
Participants without experience:
Minimum workload = 80 class hours
Participants with experience:
Minimum workload = 40 class hours
Update (Refresher):
Minimum workload = 16 class hours
Update (Refresher): The employer must provide periodic training annually and whenever any of the following situations occur:
a) change in procedures, conditions, or work operations;
b) event indicating the need for new training;
c) return to work after leave longer than ninety days;
d) change of employer;
e) replacement of machine or equipment.
NR 10 English Course
NR 10 English Course
Normative References (Sources) for the applicable provisions, their updates, and replacements up to the present date:
NR 01 – Disposições Gerais e Gerenciamento de Riscos Ocupacionais;
NR 10 – Segurança em Instalações e Serviços em Eletricidade;
ABNT NBR 5410 – Instalações Elétricas de Baixa Tensão;
ABNT NBR 14039 – Instalações Elétricas de Média Tensão;
ABNT NBR 5419 – Proteção contra Descargas Atmosféricas (SPDA);
Protocolo – Guidelines American Heart Association;
Target Normas;
Associação Brasileira de Normas Técnicas – ABNT;
Note: This Service exclusively meets the requirements of the MTE (Ministry of Labor and Employment). When dealing with requests from other Agencies, please inform this at the time of application.o.
NR 10 English Course
NR 10 English Course
What Are Free Courses?
Given the variety of short-term courses that promise professional qualification, the question about their validation and the need for registration with competent authorities frequently arises, with questions such as: “For offering technical courses, is authorization and/or registration with the MEC required?” or “For offering technical courses, is authorization and/or registration with the State Department of Education required?”
Let us examine what the legislation says about these courses:
Professional education is regulated by the National Education Guidelines and Framework Law (Law No. 9.394/96), specifically in Article 39, which states:
Art. 39. Professional and technological education, in fulfilling the objectives of national education, is integrated into the different levels and modalities of education and the dimensions of work, science, and technology.
§ 1 Professional and technological education courses may be organized by technological areas, allowing the construction of different training pathways, according to the rules of each level and type of education.
§ 2 Professional and technological education includes the following courses:
I – initial and continuing training or professional qualification;
II – technical professional education at the secondary level;
III – technological professional education at the undergraduate and postgraduate levels.
§ 3 Technological professional education courses at the undergraduate and postgraduate levels will be organized according to national curriculum guidelines established by the National Education Council.
The National Education Council, through Resolution CNE/CP No. 1 of January 5, 2021, defined the General National Curriculum Guidelines for Professional and Technological Education. This resolution, in Article 4, establishes that Professional and Technological Education, based on § 2 of Art. 39 of the LDB and on Decree No. 5.154/2004, is developed through courses and programs of:
I – professional qualification, including initial and continuing training of workers;
II – Technical Professional Education at the Secondary Level, with intermediate exits for technical professional qualification and technical specialization courses;
III – Technological Professional Education, at the undergraduate and postgraduate levels, with intermediate exits for technological professional qualification, technological specialization courses, and professional master’s and doctoral programs.
According to the questions mentioned, these refer to mid-level technical professional courses, considering the need for registration with the State Department of Education and/or the State Education Council.
For these courses, Resolution CNE/CP No. 1/2021 establishes, in Chapters V and VI, the rules for offering, structuring, and organizing them. Article 16 defines:
Art. 16. Technical courses will be offered in integrated, concurrent, or subsequent forms to High School, as described below:
I – integrated, for those who have already completed Elementary School, with a single enrollment at the same institution, leading the student to the technical professional qualification while completing High School;
II – concurrent, for those who are currently enrolled or entering High School, with separate enrollments for each course, taking advantage of educational opportunities in different institutions;
III – intercomplementary concurrent, offered simultaneously in different institutions but integrated in content through agreements or partnerships;
IV – subsequent, intended for those who have already completed High School.
Article 17 specifies that the offering of a technical course, in any form, must be preceded by accreditation of the educational unit and authorization of the course by the competent authority of the respective education system, in this case, the State Education Council (CEE).
The authorizations and accreditations carried out by the CEE are published in the State Official Gazette. In Espírito Santo, these resolutions can be consulted on the CEE website.
Institutionally accredited providers must display in their promotional materials the authorization/accreditation number issued by the CEE, which can be verified on the Council’s website.
Considering other types of “technical” courses in the market, it is worth mentioning the existence of free courses. Law No. 9.394/96, in Article 42, establishes:
Art. 42. Institutions of professional and technological education, in addition to regular courses, shall offer special courses, open to the community, with enrollment subject to the student’s ability to follow the course, without the need for specific schooling level.
According to the Ministry of Education’s website, free courses can be offered as initial and continuing training or professional qualification, open to the community, with no schooling requirement.
Free courses do not have a predetermined workload and are focused on professional or personal qualification in specific areas. They do not require prior schooling, and MEC regulation does not apply to them. These courses are valid throughout the country and can be offered in person or online.
Finally, since free courses do not require accreditation with the MEC, they are not subject to oversight by educational regulatory agencies. Institutions may issue certificates for these courses, but with no official recognition value, only as proof of acquired qualification.
Clarification: The purpose of our Course is to enhance the student’s knowledge step by step on how to prepare the Technical Report; What enables the student to sign as the Technical Responsible is, above all, the professional attributions they possess before their Professional Council, such as CREA.
Our pedagogical project follows the guidelines imposed by Regulatory Standard No. 1.
After payment confirmation, Purchase Order, signed Contract between the parties, or another form of agreement confirmation, the instructional material will be released within 72 business hours (up to 9 days), due to the adaptation of the program content and alignment with Technical Standards applicable to the scenario provided by the Client; as well as additional adjustments to the instructional material made by our Multidisciplinary Team for technical language according to the nationality of the student and the specific Operational Technical Instruction and Maintenance Manuals of the activities to be performed.
Attention: The Course teaches how to Apply normative concepts of the standard; what authorizes someone to sign Projects, Reports, Expert Opinions, etc., are the attributions the Legally Qualified Professional holds with their respective Professional Council, such as CREA.
This course aims to study situations where the application of Concepts and Calculations according to relevant Standards is necessary; it does not replace the analysis and responsibility of each professional accredited with CREA or other Professional Councils in various situations, where it is unavoidably necessary to respect equipment preservation conditions, periodic calibration of instruments, and the primary capacity limits predetermined by PPE manufacturers, among other requirements based on applicable Standards.
Causes of Occupational Accidents:
Lack of employer alertness;
Lack of employee care;
Even performing all mandatory Occupational Health and Safety Training and Reports, in case of a work accident the employer will be subject to the following proceedings:
Police Investigation – Civil Police;
Forensic Analysis through the Criminalistics Institute;
Investigation Process by the Regional Labor Authority;
Public Civil Inquiry by the Public Labor Prosecutor’s Office to verify if other workers are at risk;
INSS will question whether the accident could have been prevented and may deny benefit payments to the employee;
Family members may file lawsuits in the Labor Court claiming Moral and Material damages, injuries, etc.;
A “Procedural Tsunami,” forcing the Employer to develop Defense Strategies even when innocent;
Although Labor Delegation Law does not expressly apply “culpa in vigilando,” but only the responsibility to provide equipment, it is important to stress that the Employer is also responsible for supervision;
When an accident occurs, beyond destroying the “good atmosphere” among employees, it creates the serious problem of defending multiple procedures at the same time—therefore, investing in prevention is worthwhile;
The Employee cannot perform activities exposing them to risks that may compromise their safety and health, therefore the Employer may respond in both criminal and civil spheres.
OTHER ELEMENTS WHEN APPLICABLE AND CONTRACTED:
Introduction to electrical safety;
Risks in electrical installations and services;
Electric shock, mechanisms and effects, arc flashes, burns and falls;
Electromagnetic fields, Risk Analysis Techniques;
Electrical Risk Control Measures, de-energization;
Functional grounding (TN / TT / IT); protective, temporary;
Equipotential bonding, automatic power disconnection;
Residual current devices, extra-low voltage, barriers and enclosures;
Lockout and impediments, obstacles and shields, insulation of live parts;
Double or reinforced insulation, placing out of reach, electrical separation;
Brazilian Technical Standards – ABNT NBR: NBR-5410, NBR 14039 and others;
Ministry of Labor Regulations, NRs;
Qualification, habilitation, training and authorization, Collective protection equipment;
Personal protective equipment, Work routines – Procedures;
De-energized installations, work authorization, signaling;
Area inspections, tasks, tools and equipment;
Electrical installation documentation, Additional risks, height;
Confined spaces, classified areas, humidity, atmospheric conditions;
Fire protection and firefighting, basic concepts, preventive measures;
Extinguishing methods, practice, Electrical-origin accidents;
Direct and indirect causes, case discussions, First aid;
Injury concepts, prioritization of care, artificial respiration;
Cardiac massage, techniques for removal and transport of injured persons;
Practices, Responsibilities
Source: NR 10
Activity Complements – Awareness of Importance:
APR (Preliminary Risk Analysis);
PE (Emergency Plan);
PGR (Risk Management Plan);
GRO (Occupational Risk Management);
Understanding the need for a Rescue Team – NBR 16710;
The importance of task knowledge;
Accident prevention and first aid notions;
Fire protection – NBR 14276;
Risk perception and factors affecting individual perception;
Impact and behavioral factors in safety: Fear factor;
How to discover the fastest and easiest way to develop Skills;
How to control the mind while working;
How to manage and organize work time;
Why balance energy during activity to achieve productivity;
Consequences of Risk Habituation;
Causes of occupational accidents;
Notions of Cause Tree Analysis;
Understanding Ergonomics, Job Analysis, and Ergonomic Risks.
Basic notions of:
HAZCOM – Hazard Communication Standard;
HAZMAT – Hazardous Materials;
HAZWOPER – Hazardous Waste Operations and Emergency Response;
PDCA Cycle (Plan-Do-Check-Act) – ISO 45001;
FMEA – Failure Mode and Effect Analysis;
SFMEA – Service Failure Mode and Effect Analysis;
PFMEA – Process Failure Mode and Effect Analysis;
DFMEA – Design Failure Mode and Effect Analysis;
Failure Mode, Effects and Criticality Analysis (FMECA);
Bow Tie Risk Management Tool;
Accident Analysis Tool – TRIPOD Method;
Hazard Communication Standard – OSHA;
Hawkins Scale (Scale of Consciousness);
Practical Exercises:
Evidence Records;
Theoretical and Practical Assessment;
Certificate of Participation.
NR 10 English Course
Learn More: NR 10 English Course
NR 10, or Regulatory Standard 10, is an essential guideline for safety in activities involving electricity, covering everything from power generation and transmission to its use in electrical installations. Its main objective is to protect workers’ health and integrity by establishing strict control measures to prevent accidents such as electric shocks, burns, and explosions.
With NR 10, employers and workers must adopt safe practices, such as the use of Personal Protective Equipment (PPE) and Collective Protective Equipment (CPE), and perform regular maintenance. The standard also requires professional training, ensuring that workers are prepared to identify and manage electrical risks in the workplace.
In addition to preventing accidents, the application of NR 10 reduces operational costs, ensures legal compliance, and promotes a culture of safety. It is an essential standard for any company that works with electricity and aims to transform workplaces into safer and more productive environments.
S: NR 10
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NR 10 English Course: Contact us.