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The neutral cable, despite its name, carries electric current, and therefore it is extremely necessary that it has the same gauge as the phase cable. The neutral must be grounded in the standard to maintain the neutral grounding at the transformer output. This is what makes the neutral have the same ground potential, and that is why when we measure the voltage between phase and ground, it is the same voltage between phase and neutral, since we have the same potential between neutral and ground. One of the functions of the BEP busbar, which is the equipotentialization busbar in an electrical installation, is to ensure the connection between ground and neutral, keeping the neutral in the same reference as zero, thus avoiding fluctuation of the neutral, due to load imbalance, and which can cause overvoltages in the sockets, and cause equipment to burn out. COMPLETE ELECTRICIAN INSTALLER COURSE! PRE-LAUNCH: https://eletricidadeonline.com/cursoe... ???? TAKE ADVANTAGE OF: ???? Discover our courses: http://eletricidadeonline.com ???? Download our material: http://eletricidadeonline.com/DOWNLOAD/ ???? Join our WhatsApp group: https://chat.whatsapp.com/KmchGflxdyF... See how to assemble a panel with the DR: • WHY NOT USE THE DR IN GENERAL?? UNDERSTAND... What are the classifications of people and environments by NBR5410: • YOU KNOW HOW TO USE NBR-54 CORRECTLY...