A gestão eficiente de projetos de instalações elétricas para edificações

Abstract

Electrical installations are one of the foremost subsystems within the multidisciplinary reality of a civil construction project, since its inadequacy may lead to hazardous consequences, resulting not only in the need to rerun services but also in fire occurrence. To develop a good design, the professional should be aware of all its stages, which begin with the contact with the client, require attention to norms and specific regulations, and culminate in the delivery of the product and feedback. However, such process is not always followed among Brazilian professionals, who are unaware of the rules and therefore have the mistaken understanding that a design would only consist of a set of drawings, resulting in little attention to other necessary documentation. The aim of this study is to propose procedures for the management of the design of low-voltage electrical installations of buildings within the project as a whole and its compatibility with other designs, regarding attention to relevant standards. The standard base from which other rules of specific nature derive is the ABNT NBR 5410. In addition to the literature review, the significant contribution of my 25 years of professional experience in electrical engineering, both in the private sector and in the public sector, was used in this work. The need to review the training of professionals was found, due not only to the little emphasis on technical standards and on electrical installations provided by undergraduate courses, but also because only a small number of professionals get involved in continuing education, such as scientific events and postgraduate courses. Thus, we propose that the electrical installations design be developed within a clear flowchart, with precise definition of interfaces, elaboration of often neglected project steps and the appropriate use of standards and regulations. This study provides subsidies for the construction of such flowchart. Also, the need for periodic review of standards, along with technological progress, was found.