シャドーイング練習: Terminal Block Connection Types - 動画で英語スピーキングを学ぶ
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Hello, I'm Josh Bloom.
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Welcome back to the RSP Supply Education Series.
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In today's video, we're going to be talking about different types of terminal block connection types.
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More specifically, we're going to be focusing on the Phoenix Contact Clip Line Terminal Blocks.
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So today, we're going to talk about the five different connection types that Phoenix Contact offers with their terminal blocks.
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The first type of connection is the screw type connection terminal block.
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That is shown right here.
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This is the most common type of connection that you'll find with terminal blocks.
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It's been in the industry for a very long time.
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You simply use a precision screwdriver to make the connection with a stripped wire.
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Let me demonstrate how you make the connection.
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You insert the wire into the terminal port and simply tighten your screw until your wire has been properly torqued.
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The next type of terminal block connection we're going to talk about is the spring cage connection, which are located right here.
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The benefits of using the spring cage connection are going to be, it's a much quicker way to terminate and disconnect wires.
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They're very safe and sturdy and secure, much like the screw type connection.
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Let me demonstrate how to make the connection.
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We first take a wire and strip that back about one half inch.
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We are going to need to use a precision screwdriver, which we will insert into the spring cage.
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And then we can simply insert our wire, make sure that's fully seated, and then remove our precision screwdriver.
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We now have a very secure, safe, tight connection.
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The next type of terminal block connection we want to talk about today is referred to as PIT or push -in terminal.
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The benefit of using this type of terminal block connection is a tool -free connection.
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This allows operators to easily remove and reinsert wires without the need for any type of tool.
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For the wire that's used on a PIT or push -in terminal connection, we need to make sure that we're using a ferrule.
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The ferrule allows for the connection to work properly and seat properly.
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We simply take the wire with the ferrule connected, we insert it into the push -in terminal, make sure it is seated fully,
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and there we have a fully seated, safe, secure connection.
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To remove this connection, we simply take a precision screwdriver, push down on the spring, which allows us to remove the wire very simply.
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The next type of terminal block connection we want to talk about today is referred to as Fast Connect.
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The benefit of using this type of terminal block connection is
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it allows the operator to terminate the wire without the need for stripping the insulation.
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This is also a gas -sealed connection, which helps us prevent the wire from becoming corroded or degraded in any way.
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Let me demonstrate how we make this connection.
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Simply take a wire that has not been stripped of its insulation, insert it into the proper terminal, make sure the wire is fully seated.
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Take a precision screwdriver, insert it into the slot, pry that terminal back to the center of the terminal block.
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What this does is it allows the terminal block to displace the insulation to make proper contact with the wire.
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Once we've done this, we have a very secure, safe connection that required no tools.
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The last type of terminal block connection we want to talk about today is referred to is a barrier terminal block.
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The benefit of being able to use a barrier terminal block is it allows us to use a ring
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or spade terminal at the end of our wire.
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This type of terminal block is commonly used in the rail and transportation industries or where vibration might become a common problem.
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Let me demonstrate how we make this type of connection.
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We first want to make sure that our wire has either a spade or ring terminal properly crimped and connected.
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Then we are going to insert the ring terminal over the bolts on the barrier terminal block.
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We're going to push the lever down on the top of the terminal block until it is fully seated.
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Then we're going to take a common flathead screwdriver and secure the nut over the bolt.
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At this point we have a secure connection that will resist loosening due to vibration we might encounter.
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As always you can find any of the products seen in this video on our website.
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For more information or other training videos please go to rspsupply .com, the internet's top source for industrial hardware.
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このレッスンの語彙とスピーキングのポイント
このC1レベルのスピーキングレッスンは、動画「Terminal Block Connection Types」を教材にしています。 繰り返し出てくる語は次のとおりです：connection, terminal, block, wire, type。 この動画には、シャドーイング用の文が49文、単語が776語あります。 音声の長さは3:58です。 話す速さは速く、1分あたり約195語です。音のつながりや弱く発音される音が多くなります。 英語の頻出3,000語に含まれる単語は79%だけなので、語彙は難しめです。
この動画の重要語彙
動画の中で特に難しい単語11語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| insert 動詞 | /ɪnˈsɝt/ | 差し込む, 挟み込む |
| screwdriver 名詞 | /ˈskɹuˌdɹaɪvɚ/ | ドライバー, 螺子回し |
| precision 名詞 | /pɹɪˈsɪʒ.ən/ | 精度, 正確性 |
| vibration 名詞 | /vaɪˈbɹeɪʃən/ | 振動 |
| terminate 動詞 | /ˈtɝmɪneɪ̯t/ | 止める, 打ち切る |
| bolt 名詞 | /boʊlt/ | ボルト |
| flathead 名詞 | /ˈflætˌhɛd/ | 鯒 |
| loosen 動詞 | /ˈluːsən/ | ゆるめる, ほどく |
| sturdy 形容詞 | /ˈstɜrdi/ | 頑丈な, 丈夫な |
| lever 名詞 | /ˈliː.və/ | 梃子 |
| torque 名詞 | /tɔɹk/ | トルク |
この動画の文法
話し手がよく使っている文型を、動画の実際の表現とともに紹介します。
| 文型 | 動画での表現 |
|---|---|
| 受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる | is shown · has been properly torqued · are located |
| 現在完了形 have/has + 過去分詞 — 過去の出来事が今も関係している | It's been · has been · has not been stripped |
注意したい発音
話し手はwe're, I'm, they'reなど、短縮形や弱形を11回使っています。聞こえたとおりの短い形で発音しましょう。
- 「sh」と「zh」の音: precision /pɹɪˈsɪʒ.ən/, insulation /ˌɪnsəˈleɪʃən/, vibration /vaɪˈbɹeɪʃən/
日本語話者が苦手な音：
- /v/ — /b/ にならないように、上の歯を下唇に当てる: screwdriver /ˈskɹuˌdɹaɪvɚ/, vibration /vaɪˈbɹeɪʃən/, lever /ˈliː.və/
- /f/ — 「フ」ではなく、上の歯と下唇で出す: ferrule /ˈfɛɹ.əl/, flathead /ˈflætˌhɛd/
- 子音の連続 — 間に母音を入れない: screwdriver /ˈskɹuˌdɹaɪvɚ/, precision /pɹɪˈsɪʒ.ən/, bolt /boʊlt/, disconnect /dɪskəˈnɛkt/, displace /dɪsˈpleɪs/
この動画での練習方法
- まず声を出さずに動画を最後まで聞き、知らない単語をメモします。
- まず0.75倍速で一文ずつシャドーイングし、慣れてきたら通常の速度に戻します。
- 自分の声を録音して元の音声と比べます。insert, screwdriver, precisionなどの単語に特に注意しましょう。
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。