ROCHA, J. M. L.; http://lattes.cnpq.br/6165974292610941; ROCHA, João Marcos Leal.
Abstract:
Electrical installations are nothing more than the infrastructure responsible for allowing
electrical equipment to receive electrical energy from utilities or other sources of energy so that
they can perform the functions for which they were designed. For the electrical equipment to
function properly, it is necessary that the electrical installations are correctly sized, otherwise,
the operation of this equipment will be compromised and not only that, the entire electrical
installation itself may represent a risk to people's lives. In order for low voltage electrical
installations to be dimensioned and properly executed, the Brazilian Regulatory Standard 5410
of 2004 (NBR 5410: 2004) establishes the requirements that these installations must meet.
However, the majority of low voltage electrical installations in Brazil do not comply with NBR
5410: 2004. In this sense, the present work analyzed the state of the electrical installations of a
flour mill in Santana do Piauí/PI, verifying the main points of non-conformities with NBR 5410:
2004. In addition, an electrical project was prepared as a proposal to adapt to the nonconformities
found and their respective budget. The analysis of the electrical installations under
study was made based on a survey of information “in loco”. It was found that the electrical
installation presents several points of non-conformities such as NBR 5410: 2004, such as: the
correct dimensioning of the protection devices, the division of the circuits and the section of
the conductors. The results obtained show that the electrical installation in question needs
numerous corrections. They also show that the project prepared by a qualified professional
avoids numerous inconveniences to the building owners.