| Scope: |
This ESSENTIAL describes the regulatory requirements for electrical installation based on the specific Brazilian laws and regulatory standards NR 10 and NR 12.
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| Legislation in force: |
Approval of Regulatory Standards NR
(Normas Regulamentadoras) by the MTE
NR-10 - Instalações e Serviços em Eletricidade (ELECTRICAL SAFETY - INSTALLATIONS AND SERVICES)
Content:
1. Objective and Scope
2. Control Measures
3. Safety in Design
4. Safety in Construction, Assembly, Operation and Maintenance
5. Safety at De-energized Electrical Installations
6. Safety in Energized Electrical Installations
7. Work Involving High Voltage (HV)
8. Training, Qualification, Capacity Development and Authorization of the Workers
9. Protection against Fire and Explosion
10. Safety Signs
11. Work Procedures
12. Emergency Situation
13. Responsibilities
14. Final Provisions
ANNEX I - Glossary
ANNEX II - Risk Zone and Controlled Zone
ANNEX III - Training
NR-12 - Machinery and Work Equipment Safety (SEGURANÇA NO TRABALHO EM MÁQUINAS E EQUIPAMENTOS)
Chapter 12.3: Electrical devices and installations (Instalações e dispositivos elétricos)
12.3.1 The electrical command and power circuits of machinery and equipment must be designed and maintained in such a way as to prevent, by safe means, the dangers of electric shock, fire, explosion and other types of accidents, as provided for in official technical standards and, in the absence of of these, in the applicable international standards.
12.3.2 The housings, casings, shields or conductive parts of machines and equipment that are not part of electrical circuits, but that may be under voltage, must be grounded, in accordance with the official technical standards in force.
12.3.3 The electrical control and power circuits of machines and equipment that are or may be in direct or indirect contact with water or corrosive agents must be designed with means and devices that guarantee their shielding, tightness, isolation and grounding, in order to prevent the occurrence of accidents.
12.3.4 The electrical supply conductors of machines and equipment must meet the following minimum safety requirements:
a) offer mechanical resistance compatible with its use;
b) have protection against the possibility of mechanical breakage, abrasive contacts and contact with lubricants, fuels and heat;
c) location so that no segment is in contact with moving parts or sharp corners;
d) do not hinder the movement of people and materials or the operation of machines;
e) not pose any other types of risks in its location; It is
f) be made of materials that do not spread fire.
Law no. 6.214 (22-DEC-1977) - Occupational Safety and Health
Chapter V - Safety and Health at Work
Section IX - Electrical Installations
Art. 179 - The Ministry of Labor shall provide for the safety conditions and the special measures to be observed in relation to electrical installations, in any of the phases of production, transmission, energy distribution or consumption.
Art. 180 - Only qualified professionals may install, operate, inspect or repair electrical installations.
Art. 181 - Those who work in electricity services or electrical installations must be familiar with the methods of rescue to injured by electric shock.
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| Comment on the comparability to EU legislation: |
Brazilian NR-12 and NR-10 are not comparable to the EU Machinery Directive and EU Low Voltage Directive.... |