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In this video, the team specializing in electrical installation works AG ELECTRO will show what measurements need to be made before and after electrical installation works. The video will show how, and most importantly, why to measure short-circuit currents. Moreover, the measurement of short-circuit currents will be made in old and new funds, both on input cables and at the most distant points. The video will also show how to check the insulation condition of the input cable, how to check automatic switches and RCDs, how to check the voltage relay by the lower and upper threshold of operation and how to use a multimeter and why it is needed! Link to our boosty, it has a lot of interesting content, including a six-hour video on SPD - https://boosty.to/stroyploshchadka Electrician Georgy - https://vk.com/away.php?to=https%3A%2... Electrician Alexander - https://vk.com/away.php?to=https%3A%2... For cooperation: WhatsApp / Telegram +7 (982) 481-10-23 ASSEMBLY OF SHIELDS TO ORDER: WhatsApp / Telegram +7 (982) 469-94-34 Our Instagram: / stroy_ploschadka Our VK: https://vk.com/stroy_ploschadka You can buy electrical installation products (sockets, switches, fast chargers) in the ETM online store. Upon presentation of the promo code you will receive a 10% discount (valid only when purchasing in the online store, but through it you can also buy in the ETM branch) - STROYKA_3000