Link to purchase the Electrical Calculations Spreadsheet: https://hotm.art/ytd-planilha-calculo... Link to purchase the Load Panel Calculation Spreadsheet: https://hotm.art/ytd-planilha-quadro-... Link to purchase the Electrical Plant Sizing Spreadsheet: https://hotm.art/ytd-planilha-plantas... __________________________________________________ If you like the Eletricity channel and want to contribute to the generation of quality content, then access one of the options below: PIX KEY ???? [email protected] QR CODE ???? https://bit.ly/doacao-pix __________________________________________________ Receive Eletricity content straight to your email! Register using the link below: ???? https://bit.ly/cadastro-eletricity __________________________________________________ ???? Check out our content ???? ???? https://linktr.ee/Eletricity __________________________________________________ ???? Most Watched Videos: What they DIDN'T TELL you about the 3-PIN SOCKET CONTROVERSY. ???? https://bit.ly/2JE4P07 How to Make a Curve and Unevenness in Electrical Cable Trays. ???? https://bit.ly/2ABlrk4 Higher Voltage Lower Current, Truth or Myth? We'll Prove It for You (Part 01). ???? https://bit.ly/2xvtzRB Do You Know All the Functions of the Wire Stripping Pliers? ???? https://bit.ly/2GD5Sun What's Best for Derivations in Electrical Panels? We Tested It For You, See the Result. ???? https://bit.ly/2MDdrHl We Connected 3 Bulbs in a Star without Neutral. Will It Work? The Result is Impressive. ???? https://bit.ly/2BzUkH1 We Tested the WAGO 221 Connector and the Result Was Incredible. ???? https://bit.ly/2PknMoz Insulator Test. ???? https://bit.ly/2wEYcDV Connection Test. ???? https://bit.ly/2MHQdzZ_ Do You Know Threaded Rivets? Do You Know How to Use Them? ???? https://bit.ly/2J8bSMC We Tested the Porcelain Connector. ???? https://bit.ly/2AddKRh __________________________________________________ For correct sizing of conductors, it is necessary to take into account at least 5 criteria according to NBR-5410: 1-Minimum cross-section; 2-Current carrying capacity; 3-Voltage drop; 4-Protection against overloads; 5-Protection against short circuits; Item 2 (Current carrying capacity) will depend on some factors: 1-Type of conductor (PVC, EPR or XLPE); 2-(Conductor Material (Copper or Aluminum); 2-Installation Method; 3-Correction by Temperature; 4-Correction by Grouping. Guys, here I mentioned a few, but if you open the NBR-5410 standard in the conductor sizing section you will notice that there are a series of rules for correctly sizing the conductor. If you have a cable that will carry a current of 34A for example, it is not enough to just go to the standard table and pick a cable that has the capacity to support this current. First we need to know some details: What temperature this cable will be exposed to; How many circuits will be grouped together with this cable; What is the type of installation (conduit, tray, buried, etc.); What are the characteristics of the cable (PVC, EPR, XLPE). All these questions are answered by the NBR-5410 standard which has a lot of tables that help us find correction factors for the cable current according to each type of installation. After applying the factors and finding the new current “Corrected” current of the cable means that you can go to the table and find the correct cable for the installation. We must be careful not to confuse “corrected current” with the design current. They are completely different from each other: Design current – ​​This is the current that will pass through the cable to supply the load. This current is found by knowing the electrical characteristics of the load (power, voltage, etc.). Corrected current – ​​This is the current that serves as a parameter to facilitate the location of the correct cable in the standard table after all the correction factors have been applied. This design current will not pass through the cable and cannot be considered as the cable current. It is not enough to just take a table and look at the cable current according to its cross-section. This is wrong. We need to know the 5 methods presented above to properly size the conductor for a given load. In the future, we will talk more about the other sizing methods to keep electrical professionals informed about the need to know and apply the requirements of the standard when sizing cables. I hope this video has helped you understand in practice a concept that is so forgotten by some professionals. I hope to see you in the next videos. ???? A hug to all. ???? Stay tuned for #eletricity ????