# Elect Learn — 电工通识课与工地英语

> Bilingual electrical-safety, circuit, tool, jobsite-English and evidence-based troubleshooting lessons. 中英双语电工学习：12 节课程、10 篇英语指南、30 张术语卡、10 个排故场景与 20 题测评。

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Educational material only: preserve stop-work conditions, safety boundaries, and jurisdiction notes when summarizing. This site does not grant qualifications or replace local codes, employer procedures, or qualified judgment. Interactive illustrations use simplified models; read the HTML version to operate them.

## Start here

- [Structured content index](https://elect-learn.org/knowledge/index.json): Search titles, descriptions, and headings; follow each document's Markdown or JSON URL.

- [中文首页](https://elect-learn.org/zh/index.md): 中文课程与训练目录。

- [English home](https://elect-learn.org/en/index.md): English course and resource directory.

## Lessons / 课程

- [电为什么危险 (zh)](https://elect-learn.org/zh/lesson/01-why-electricity-is-dangerous/index.md): 从电击、短路、火灾和弧闪建立第一条规则：看不见的电，必须先证明它不存在。

- [Why Electricity Is Dangerous (en)](https://elect-learn.org/en/lesson/01-why-electricity-is-dangerous/index.md): Use shock, short circuits, fire, and arc flash to build the first rule: invisible electricity must be proven absent.

- [断电、验电、上锁挂牌 (zh)](https://elect-learn.org/zh/lesson/02-deenergize-test-lockout/index.md): 把安全流程拆成可复述的动作：识别电源、隔离、锁定、验证、保持控制。

- [De-energize, Test, Lockout/Tagout (en)](https://elect-learn.org/en/lesson/02-deenergize-test-lockout/index.md): Turn safety into repeatable actions: identify sources, isolate, lock, verify, and maintain control.

- [万用表入门 (zh)](https://elect-learn.org/zh/lesson/03-multimeter-basics/index.md): 用“插座没电”案例理解电压、连续性和电阻测量的用途与边界。

- [Multimeter Basics (en)](https://elect-learn.org/en/lesson/03-multimeter-basics/index.md): Use a dead receptacle case to understand voltage, continuity, and resistance measurements and their limits.

- [电压、电流、电阻与功率 (zh)](https://elect-learn.org/zh/lesson/04-voltage-current-power/index.md): 把常见公式变成直觉：电压推动，电流流动，电阻限制，功率变成热和做功。

- [Voltage, Current, Resistance, and Power (en)](https://elect-learn.org/en/lesson/04-voltage-current-power/index.md): Turn formulas into intuition: voltage pushes, current flows, resistance limits, and power becomes heat or work.

- [火线、零线、地线 (zh)](https://elect-learn.org/zh/lesson/05-hot-neutral-ground/index.md): 用回路路径解释 hot、neutral、ground 各自的角色，以及零地误接为什么危险。

- [Hot, Neutral, and Ground (en)](https://elect-learn.org/en/lesson/05-hot-neutral-ground/index.md): Explain hot, neutral, and ground as circuit paths, and why neutral-ground mistakes are dangerous.

- [串联、并联、负载与压降 (zh)](https://elect-learn.org/zh/lesson/06-series-parallel-voltage-drop/index.md): 理解住宅回路为什么通常并联，压降和连接松动为什么会让设备异常。

- [Series, Parallel, Loads, and Voltage Drop (en)](https://elect-learn.org/en/lesson/06-series-parallel-voltage-drop/index.md): Understand why residential loads are usually parallel, and why voltage drop or loose connections cause symptoms.

- [断路器、GFCI、AFCI 和配电箱 (zh)](https://elect-learn.org/zh/lesson/07-breakers-gfci-afci-panel/index.md): 认识常见保护装置保护什么、不保护什么，以及跳闸背后的线索。

- [Breakers, GFCI, AFCI, and Panels (en)](https://elect-learn.org/en/lesson/07-breakers-gfci-afci-panel/index.md): Recognize what common protective devices do and do not protect, and what trips tell you.

- [插座、开关、灯具接线逻辑 (zh)](https://elect-learn.org/zh/lesson/08-receptacles-switches-lights/index.md): 不背死图，而是理解电源进来、负载出去、开关控制哪一段。

- [Receptacles, Switches, and Lighting Logic (en)](https://elect-learn.org/en/lesson/08-receptacles-switches-lights/index.md): Do not memorize diagrams blindly; understand incoming power, outgoing load, and what the switch controls.

- [导线规格、颜色、端接与线盒空间 (zh)](https://elect-learn.org/zh/lesson/09-wire-gauge-color-box-fill/index.md): 理解线规承载能力、颜色识别、端接质量和线盒空间为什么会影响安全。

- [Wire Gauge, Color, Termination, and Box Space (en)](https://elect-learn.org/en/lesson/09-wire-gauge-color-box-fill/index.md): Understand how ampacity, color identification, termination quality, and box space affect safety.

- [更换插座的标准流程 (zh)](https://elect-learn.org/zh/lesson/10-receptacle-replacement-workflow/index.md): 用模拟流程串起工具、断电、验电、线色、端接、GFCI 和复检。

- [Safe Receptacle Replacement Workflow (en)](https://elect-learn.org/en/lesson/10-receptacle-replacement-workflow/index.md): Use a simulated workflow to connect tools, de-energizing, verification, colors, termination, GFCI, and final checks.

- [单控灯开关排查 (zh)](https://elect-learn.org/zh/lesson/11-single-pole-switch-troubleshooting/index.md): 从灯不亮、开关无效、盒内多根线出发，练习按回路逻辑排查。

- [Single-pole Switch Troubleshooting (en)](https://elect-learn.org/en/lesson/11-single-pole-switch-troubleshooting/index.md): Use dead lights, ineffective switches, and multi-wire boxes to practice circuit-based troubleshooting.

- [常见故障排查地图 (zh)](https://elect-learn.org/zh/lesson/12-common-fault-map/index.md): 把没电、跳闸、发热、误接放在一张决策地图里，复习前 11 课。

- [Common Fault Troubleshooting Map (en)](https://elect-learn.org/en/lesson/12-common-fault-map/index.md): Put dead circuits, trips, heat, and miswiring into one decision map that reviews the first 11 lessons.

## English guides / 工地英语指南

- [Electrician English for Beginners: A Jobsite-First Learning Path (zh)](https://elect-learn.org/zh/guides/electrician-english-for-beginners/index.md): 从10个核心工地术语、安全澄清表达和双语练习开始学习电工英语。

- [Electrician English for Beginners: A Jobsite-First Learning Path (en)](https://elect-learn.org/en/guides/electrician-english-for-beginners/index.md): Start electrician English with 10 essential jobsite terms, safe clarification phrases, a bilingual practice task, and a focused learning path.

- [Electrician Tools Vocabulary: 10 Essential Tools in Jobsite English (zh)](https://elect-learn.org/zh/guides/electrician-tools-vocabulary/index.md): 学习10个常用电工工具英文名称、工地例句、工具边界和双语口语练习。

- [Electrician Tools Vocabulary: 10 Essential Tools in Jobsite English (en)](https://elect-learn.org/en/guides/electrician-tools-vocabulary/index.md): Learn 10 essential electrician tool names in English with Chinese support, jobsite examples, tool limits, and a speaking drill.

- [Electrical Components Vocabulary: 10 Jobsite Terms and Regional Names (zh)](https://elect-learn.org/zh/guides/electrical-components-vocabulary/index.md): 学习10个电气器件英文名称，并理解美国、加拿大和澳大利亚的常见地区术语差异。

- [Electrical Components Vocabulary: 10 Jobsite Terms and Regional Names (en)](https://elect-learn.org/en/guides/electrical-components-vocabulary/index.md): Learn 10 electrical component names in English, including US, Canadian, and Australian terminology for protection and distribution devices.

- [Electrical Safety Vocabulary: 10 Terms Every Apprentice Must Understand (zh)](https://elect-learn.org/zh/guides/electrical-safety-vocabulary/index.md): 学习10个电气安全英文术语、中文解释、工地例句和停手边界，并参考美澳加官方资料。

- [Electrical Safety Vocabulary: 10 Terms Every Apprentice Must Understand (en)](https://elect-learn.org/en/guides/electrical-safety-vocabulary/index.md): Learn 10 electrical safety terms in English with Chinese explanations, jobsite examples, stop points, and US, Australian, and Canadian sources.

- [Electrical Troubleshooting Vocabulary: 10 Fault-Finding Terms (zh)](https://elect-learn.org/zh/guides/electrical-troubleshooting-vocabulary/index.md): 学习10个电气排故英文术语、中文解释、证据式例句和安全故障报告练习。

- [Electrical Troubleshooting Vocabulary: 10 Fault-Finding Terms (en)](https://elect-learn.org/en/guides/electrical-troubleshooting-vocabulary/index.md): Learn 10 electrical troubleshooting terms in English with Chinese explanations, evidence-based examples, and a safe fault-reporting drill.

- [10 Electrician Jobsite English Phrases for Safer Communication (zh)](https://elect-learn.org/zh/guides/electrician-jobsite-phrases/index.md): 练习10句电工工地英语，用于工作范围、回路识别、安全隔离、复述确认、故障报告和停工判断。

- [10 Electrician Jobsite English Phrases for Safer Communication (en)](https://elect-learn.org/en/guides/electrician-jobsite-phrases/index.md): Practice 10 essential electrician jobsite English phrases for work scope, circuit identification, safe isolation, read-back, fault reporting, and stop-work decisions.

- [10 Electrician Jobsite Dialogues with Chinese Support (zh)](https://elect-learn.org/zh/guides/electrician-jobsite-dialogues/index.md): 练习10组简短电工工地对话，覆盖任务说明、回路识别、工具请求、停工、故障报告和交接。

- [10 Electrician Jobsite Dialogues with Chinese Support (en)](https://elect-learn.org/en/guides/electrician-jobsite-dialogues/index.md): Practice 10 short electrician jobsite dialogues for briefings, circuit identification, tool requests, stop-work, fault reporting, and handoffs.

- [Lockout/Tagout English Vocabulary: 10 Essential LOTO Terms (zh)](https://elect-learn.org/zh/guides/lockout-tagout-english-vocabulary/index.md): 学习10个上锁挂牌英文术语，涵盖角色、能源、隔离装置、储存能量、验证和重新送能。

- [Lockout/Tagout English Vocabulary: 10 Essential LOTO Terms (en)](https://elect-learn.org/en/guides/lockout-tagout-english-vocabulary/index.md): Learn 10 lockout/tagout English terms covering roles, energy sources, isolating devices, stored energy, verification, and re-energization.

- [Multimeter English Vocabulary: 10 Terms for Readings and Setup (zh)](https://elect-learn.org/zh/guides/multimeter-english-vocabulary/index.md): 学习10个数字万用表英文术语：交直流电压、电流、电阻、通断、COM、输入插孔、量程、分辨率和 CAT 等级。

- [Multimeter English Vocabulary: 10 Terms for Readings and Setup (en)](https://elect-learn.org/en/guides/multimeter-english-vocabulary/index.md): Learn 10 digital multimeter terms in English: AC/DC voltage, current, resistance, continuity, COM, input jack, range, resolution, and CAT rating.

- [How to Report Electrical Faults in English: 10 Useful Patterns (zh)](https://elect-learn.org/zh/guides/how-to-report-electrical-faults-in-english/index.md): 学习用10种证据式英语表达报告跳闸、发热、焦味、闪烁、无电、读数不稳、损坏和进水等电气故障。

- [How to Report Electrical Faults in English: 10 Useful Patterns (en)](https://elect-learn.org/en/guides/how-to-report-electrical-faults-in-english/index.md): Learn how to report electrical faults in English using 10 evidence-based patterns for trips, heat, odor, flicker, dead equipment, unstable readings, damage, and water ingress.

## Training and references / 训练与参考

- [从现象找到安全下一步 (zh)](https://elect-learn.org/zh/home-checks/index.md): 把插座没电、反复跳闸、插头发热、灯闪烁、外壳麻感等日常现象，拆成普通人能理解的观察、隔离和判断流程。

- [Find the safe next step from the symptom (en)](https://elect-learn.org/en/home-checks/index.md): Turn dead outlets, repeated trips, hot plugs, flickering lamps, tingling chassis, and wet outdoor gear into an understandable observe-isolate-decide flow.

- [家庭电器实践作业 (zh)](https://elect-learn.org/zh/practice/index.md): 这些任务把通识课知识放进真实家庭场景：先做外部观察、断电检查、故障归因和安全判断；涉及内部带电部件、密封加热底座、进水/漏电/保修风险时，明确停手。

- [Home Appliance Practice Labs (en)](https://elect-learn.org/en/practice/index.md): These labs put the general course into real household scenarios: external inspection, de-energized checks, fault reasoning, and safety decisions first; stop when internal energized parts, sealed heating bases, water/leakage, or warranty risk appears.

- [全球规范导航 (zh)](https://elect-learn.org/zh/standards/index.md): 按地区查找 NEC、OSHA、IEC、BS 7671、AS/NZS 与中国大陆官方电气规范入口，先确认适用辖区，再核对当地最新要求。

- [Global Electrical Code Map (en)](https://elect-learn.org/en/standards/index.md): Compare global electrical standards and official code entry points by region: NEC and OSHA for the US, IEC, BS 7671, AS/NZS, and Mainland China guidance. Confirm the local jurisdiction before work.

- [我们的学习与内容方法 (zh)](https://elect-learn.org/zh/methodology/index.md): 以刻意练习、主动提取和及时反馈组织内容；明确区分通用电气原理、地区规范与必须由持证人员处理的工作。

- [Our Learning & Content Methodology (en)](https://elect-learn.org/en/methodology/index.md): Content is organized around deliberate practice, active retrieval, and timely feedback, with clear boundaries between universal principles, local rules, and work that requires a qualified person.

- [隐私说明 (zh)](https://elect-learn.org/zh/privacy/index.md): 了解 elect-learn.org 如何处理邮箱草稿、测评结果、付款订单及售后邮件，并查看数据请求方式。

- [Privacy notice (en)](https://elect-learn.org/en/privacy/index.md): How elect-learn.org handles email drafts, assessment results, payment orders, and support messages, with data request options.

- [网站与购买条款 (zh)](https://elect-learn.org/zh/terms/index.md): 电工通识课首批版练习册的商品范围、一次性价格、数字交付、退款与售后条款。

- [Website and purchase terms (en)](https://elect-learn.org/en/terms/index.md): Product scope, one-time price, digital delivery, refunds, and support terms for the first-edition electrician workbook.

- [训练包价格 (zh)](https://elect-learn.org/zh/pricing/index.md): 一次性 US$19 购买首批版 HTML 可打印练习册：30 张双语术语卡、10 个证据式排故场景、练习记录与作答区。无订阅、无实物寄送。

- [Training pack pricing (en)](https://elect-learn.org/en/pricing/index.md): A one-time US$19 purchase supplies the first-edition printable HTML workbook: 30 bilingual term cards, 10 evidence-based troubleshooting scenarios, practice records, and answer spaces. No subscription or physical shipment.

- [20-Question Electrician Safety & Jobsite English Assessment (zh)](https://elect-learn.org/zh/assessment/electrician-safety-jobsite-english/index.md): 用 20 道中英双语题诊断安全判断、工地英语、工具测量和排故推理，并获得薄弱项学习清单。

- [20-Question Electrician Safety & Jobsite English Assessment (en)](https://elect-learn.org/en/assessment/electrician-safety-jobsite-english/index.md): Diagnose safety decisions, jobsite English, tools and measurement, and troubleshooting reasoning in 20 bilingual questions.

- [Electrician Jobsite English & Troubleshooting Pack (zh)](https://elect-learn.org/zh/product/electrician-jobsite-english-troubleshooting-pack/index.md): 首批版包含 30 张双语术语卡和 10 个证据式排故场景，可打印练习并反复复盘英语表达、安全判断与排故思路。

- [Electrician Jobsite English & Troubleshooting Pack (en)](https://elect-learn.org/en/product/electrician-jobsite-english-troubleshooting-pack/index.md): The first edition includes 30 bilingual term cards and 10 evidence-based troubleshooting scenarios, with printable practice for jobsite language and safety decisions.

- [工地英语术语与证据式排故训练库 (zh)](https://elect-learn.org/zh/training-library/electrician-jobsite-english-troubleshooting/index.md): 30 张双语电工术语图卡与 10 个证据式排故场景，包含真实工地语境、常见误用、安全边界、答案解析和训练目标。

- [Jobsite English & Evidence-Based Troubleshooting Library (en)](https://elect-learn.org/en/training-library/electrician-jobsite-english-troubleshooting/index.md): Thirty bilingual electrician terminology cards and ten evidence-based troubleshooting scenarios with jobsite context, common misuse, safety boundaries, answer analysis, and training goals.

## Optional

- [Full text](https://elect-learn.org/llms-full.txt): All 66 public language-specific documents; large download, use per-page files for focused questions.

- [Full structured corpus](https://elect-learn.org/knowledge/site.json): All public documents and their ordered sections in JSON.

- [Sitemap](https://elect-learn.org/sitemap.xml): Canonical HTML URLs and language alternatives.