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Ordered here: https://goo.gl/QXZIFf -------------------- Review and testing of piercing type OB couplers. OB couplers are not new and have been present on the electrical engineering market for a long time. Until now, I had not dealt with them, and now, to tell the truth, they are not particularly interesting to me. But still, I decided to experiment with them a little, suddenly this information will be useful to someone. -------------------- Article on the website: http://zametkielectrika.ru/obzor-i-is... -------------------- Similar videos on the channel: 1. Poor contact is the cause of fires!!! • Poor contact is the cause of fires!!! 2. Breakage of the neutral wire in a three-phase network. What does this lead to? • Breakage of the neutral wire in a three-phase s... 3. Wiring diagram for switches without junction boxes • Connecting switches without distrib... 4. Installation and connection of RGB LED strip. Selecting a power supply and controller • Installing and connecting an LED ... 5. RCD connection diagrams. Selecting an RCD by rated current and leakage current • RCD connection diagrams. Selecting an RCD by n... ------------------- Thanks to the channel: http://zametkielectrika.ru/blagodarno... Website: http://zametkielectrika.ru Electricians' Forum: http://forum-electrikov.ru VK group: https://vk.com/public34691582 Instagram: / zametkielectrika -------------------- Thank you for your attention. Until next time. Best regards, Dmitry.