SUBSCRIBE TO THE WORLD OF ELECTRICITY ???? ​​https://eletri.ca/SUBSCRIBE-TO-THE-CHANNEL Knowing how to size and choose cables and conductor wires for an electrical installation is part of the mandatory knowledge for building electricians. Choosing the correct electrical cable depends on well-defined standards and calculations. Cables for showers, grounding, sockets, lighting and motors have sizing standards with important variations and details. Knowing how to calculate how many amps a cable should support can help with sizing by using the table provided by the manufacturers. The correct sizing of circuit breakers in each phase, circuit and general is also related to the sizing of the conductors. The Prysmian Club app can be downloaded from the following links: Android - http://bit.ly/29wtPV8, IOS - http://apple.co/1PgggEw, Windows (NEW) - http://bit.ly/2b8zjW1 Among the objectives of this video, we highlight: Presenting the sizing method and tables of NBR5410. Presenting support material from Prysmian on electrical cables. We address the following items throughout this video: The NBR-5410 standard stipulates some criteria that must be taken into consideration when sizing an electrical conductor. One of the main points is knowing the cable installation method. In the case of residential installations, most of the installation is in conduits embedded in masonry. According to table 33 of NBR-5410, the installation method is number 7 and the reference for installation is B1. Then find out how many cables in the circuit are loaded, according to table 46, also of NBR-5410. Now, simply consult the current conduction table for conductors according to the cable that will be used, for residential installations the PVC cable, in this case table 36. Then check if the current that was found for the circuit that you want to size is within the minimum cross-section criterion, it stipulates the minimum gauge of a cable according to its use in low voltage. In the Prysmian Club application, you can find the reference tables as well as several other informative and technical materials about this sizing method. Highlighted parts in this video (edit notes): 00:34 - Every electrical installation as well as its components are governed by standards, just like the cables are. 01:52 - The standard stipulates standardization as in the case of cable color, the NBR5410 standard is very specific regarding which colors are used for each function within the electrical installation. 02:35 - There are many tables for sizing, avoiding the need for many calculations, such as the table for sizing electrical conduits. 03:58 - Loaded cables refer to phase and neutral cables and circuit types. 04:56 - There are wires and cables, and the name can be confusing, but the difference between them is quite simple. 06:45 - Voltage drops are found in long circuits; the greater the distance, the greater the voltage drop. 07:30 - Cables and loads are protected by circuit breakers. 08:56 - For dimensioning, it is necessary to understand the correction factors that are applied. 09:50 - Cables outside the correct occupancy rate tend to heat the circuits more, thus requiring resizing of the cables. Participating in this video: Henrique Mattede / henrique.mattede Video editing: Alex Teixeira Benfica #MEL_00383 -- The World of Electricity is an electricity, electrical and electronics channel with quality videos for you to learn on your cell phone, tablet or on your living room TV. Electricity for everyone! Electrical command course, online electrical classes, PDF manuals, electrical diagrams and explanations about NR 10 and other concepts! Join the World of Electricity: On Youtube (click and subscribe): http://goo.gl/vXru8M Mundo da Elétrica Website: http://www.mundodaeletrica.com.br On Facebook: /mundodaeletrica On Google Plus: https://plus.google.com/+Mundodaeletr... On Twitter: /mundodaeletrica On Linkedin: https://goo.gl/S8lcwp