A methodology for the elaboration of projects of the electrical systems.


The development of projects for electrical systems basically consists of providing an arrangement of conductors, materials and equipment of all kinds, in order to use electrical energy safely and efficiently from the source of supply to the last utility: lamps, motors and the various control and protection devices, which constitute the system.

Before “running the pencil on paper”, to start the project, the following general guidelines must be considered:

1.- Keep in mind the scope of the system to be projected to evaluate the concepts of energy supply and the basic configurations of wiring paths and main and derived feeders at each point of use thereof.

2.- Take into consideration all the practical concepts of the electrical circuits, with their conductors, devices, equipment devices, fittings, duly selected according to the environment and use, sizes, models, characteristics, specifications and additionally intrinsic or specific values ​​of the necessary equipment and of the materials.

3.- Evaluate the cost of the construction of the complete electrical system, as determined in the first two concepts listed, based on the actual dimensions of the buildings and areas involved in the system, the type of construction and structure of the buildings, showing as clear as possible the locations and details of the equipment installations, pipelines and pipes, connections to the main feeders and derivatives and other elements that need particular attention.

In any case, the three previous parts are very intertwined in such a way that the contributions derived from one affect the other two in any stage state.

This part of the electrical system design is expressed in the form of electrical, reproducible either by photocopying or by electronics, which include the secondary systems derived from the system diagrams and detailed drawings, isometric and sketches, equipment lists perfectly specified in terms of their characteristics, voltage, frequency, nominal operating current, interruptive current capacity, generic types and models, in short, everything that does not leave the imagination, interpretation or criteria, for which they will acquire the equipment, devices and accessories, installers and system builders.

Gathering for design

A particular design of the electrical system is required for each building and the success of this design depends on the appropriate method, the designer engineer and the knowledge of the support factors, their skill and experience. Take into consideration the existing relationship of pure technology in an electrical system and those of these flat design parts digital or main form; single diagrams, wiring connections, safe application, providing for the immediate, medium, or distant future, extensions to the extent allowed without exceeding the limit of the economic balance of the installation. The safe operation of the electrical system and the effective arrangement, with increases in load, and flexibility in the use of the system must be taken into account. With this collection you will have the certainty of making a good design.

System security

Equipment, devices, drivers, and devices

The regulatory provisions for devices, conductors and devices are considerably dynamic, technological progress is increasing very rapidly and technologies are modern designer must learn techniques at the same pace in order to be updated and continue with the most suitable trends; therefore its activity is not mechanical and template, or to only apply formulas and join parts, but to truly exercise the engineering applied to the design, taking the principles and bases of accepted old techniques and that for their reason are immutable (physical laws universal) and that survive the test of years of application and the new ones that combined must harmonize to constitute a unit in the system; devise circuits and arrangements with the old wiring techniques and the ability to constitute original circuits and arrangements, for the interconnection of new and special technology equipment, such as intelligent control circuits by means of programmable logic devices (PLCs). The designer can determine the selection of circuits and arrangements of power lines, type and classifications of equipment and installation methods, only with full knowledge and total mastery of the subject.