電線・幹線の許容電流(配線器具2)　第二種電気工事士学科試験解説

This video explains the allowable current per wire and the current reduction coefficient when it is housed in a conduit, how to calculate the allowable current of the trunk line in a branch circuit, and the operating time of a wiring circuit breaker. [Chapters] 0:00 Introduction 0:25 Allowable current of the wire 2:15 Current reduction coefficient 4:38 Example 1 6:26 Allowable current of the trunk line 10:24 Example 2 12:43 Rated current and operating time of a wiring circuit breaker 14:58 Example 3 [Recommended content] 🐯 Electrician's Examination Tiger Site https://www.hozan.co.jp/corp/denko2/p... In addition to the explanatory videos published on YouTube, we also have content that is useful for exam preparation. You can also purchase the tool sets necessary for the skill test from here! 🐯 Electrical Engineering Exam Tiger App For iPhone users: https://apps.apple.com/us/app/id16589... For Android users: https://play.google.com/store/apps/de... This is the official app from Hozan Co., Ltd., where you can study stress-free without in-app purchases or ads! [Extra column/SNS] 📖Column https://www.hozan.co.jp/corp/denko2/p... We introduce the extra column as a way to get information about exam preparation and a break from exam preparation! 🟩LINE Official Account https://lin.ee/xdspvKc 🐦️X (formerly Twitter) https://x.com/hozan_denko ・Tik Tok   / hozan_denko   ・Instagram   / hozan_denko   ・Facebook   / hozan.denko   [Other] Recommended playlist: https://www.youtube.com/@HOZANdenko/p... ・Easy-to-understand even for beginners. Academic exam preparation by category ・Explanation of past academic exam questions by year ・Explanation of how to draw multi-line diagrams, which is popular among test takers. We have many explanatory videos for both academic and practical exams! ❔Frequently Asked Questions for Electrical Engineering Examinations http://faq.hozan.co.jp/denko/ The Electrical Engineering Examination Tiger website provides "Frequently Asked Questions and Answers" regarding electrical engineering examinations and tools. [Subtitles] This video is available in Japanese and Vietnamese. The Vietnamese subtitles were provided by Saomai Japan Co., Ltd. Saomai Japan Co., Ltd. Website: https://www.saomai.co.jp/ [BGM used] Free BGM and music material MusMus