⚡️ FREE CLASS: How to Do a Complete Electrical Installation from Scratch, Easily, Even if You Are Not a Professional Electrician: ➽ https://eletr.co/aula?utm_content=yt1... ------ ???? FAAALA ENGEHALL COMMUNITY ???? Join our community on WhatsApp to receive valuable tips and news in the electrical area, important information and much more. ???? ???? https://eletr.co/fala-eng?utm_content= ------ Did you like this video? ???? ✔️ Leave your comment and share with your friends ✔️ Follow our networks ➽ https://eletr.co/links - - - - - - - - - - - - - - - - - - - - - - - - - - - - - BEFORE BECOMING an ELECTRICIAN see the BO in PRACTICE +++++++++++++++++++++++++++++++++++++++++++ Many people have had the courage to tell me, you are an air conditioning engineer! But few people know that I was only able to pay for my engineering college because I worked hard as an electrician like this here. This was a job we took on last week, there was a short circuit in the QDC power supply branch, the cables melted and welded together with the piping, we had to locate the obstruction, break the wall and try every way to restore the power, in addition to that we also renovated the client's entire panel, which was horrible, look how it was before, now look how it turned out! An old client of mine called me last week saying that he had recently moved into a new house and only half of the house was working. I arranged to visit him and when I got there I saw that it was a two-phase 220V panel but only one of the two phases was showing voltage. I went to the standard and saw that both phases were showing voltage, so the problem was in the power supply branch between the standard and the QDC. A possible short circuit caused a conductor to break and thus the power outage in half the house. I also noticed that the QDC was a mess, with poorly sized circuit breakers, poor cable organization. There was even a three-pole circuit breaker in a two-phase QDC. Can you believe it? As a result, I closed a deal with him to replace the power cable from the standard to the QDC and to renovate the panel, sizing it correctly and installing DPS. The first step before dismantling the panel is to identify all the circuits. We did several tests and identified the phase cables with colored insulating tape, writing down on a piece of paper what we discovered. Luckily, the electrician who did it knew at least the color standard and how to divide the lighting circuits from the socket circuits. Most of the time, this doesn't happen, which makes the job even more difficult. Everything identified. The first thing to do to work safely is to de-energize the entire installation at the meter panel, the energy standard. We started the disassembly by cutting the phase cables. The funny thing is that a 16mm² cable comes in and suddenly a 6mm² splice is added to power the circuit breakers. It's horrible. Then we started to remove the circuit breakers. In this case, they didn't use a busbar and made bridges with 4mm² blue cables. The power cable for the QDC is 16mm². This house still has 3 showers at 127V. You can understand why it didn't last that long, right? Also, look at this three-pole circuit breaker here. I don't know what it's doing there. The installation is two-phase, right? But let's go ahead. It's already had a short circuit, and it looks like it was due to a bad connection. Look at the condition of the component. Everything was separated. It was time to tie the new cable and pull it to the standard. Then we had a big surprise. The 16mm² rigid cables didn't even move. We tried really hard, but nothing. So we had the idea of ​​probing to try to find where the obstruction was. And bingo. We could hear the probe hitting the wall, and we started to break it. After a few good blows and a few minutes, we started to discover the hose. That's right, folks, they used a black irrigation hose. That's not familiar. Pay close attention to the fact that when it went into the baseboard, the hose was crushed. That's where the cables were held, and that's why we couldn't remove it.