电工小李在检修一台带电的三相异步电动机时，未佩戴绝缘手套，且脚下直接踩在潮湿的水泥地面上。当他用手接触电动机金属外壳时，突然发生触电事故。已知电动机外壳未接地，且内部绕组绝缘损坏导致外壳带电。请分析该触电事故发生的直接原因及预防措施。 江苏开放大学 234 问题反馈 反馈回复 推广有佣金 内容查看查看价格2 元VIP免费升级VIP立即购买申请退款 点点赞赏，手留余香 给TA打赏 AI创作 页内查找 0 猜你喜欢 2026年秋江苏开放大学计算机绘图050083过程性作业3答案 2026-10-08 Part V Writing (写作题。根据题目与写作要求写作。请不要用附件或者图片上传作文！禁止雷同作文！禁止直接用AI写作！) Directions: For this part, you are allowed 30 minutes to write a short essay on the applications of robots in future life. You should write at least 150 words but no more than 180 words. 4周前 2026年秋江苏开放大学社会保障学060200第二次过程性考核作业答案 2026-09-22 简述我国中央与地方关系改革的成效。 2026-04-01 China’s online literature and short-video sectors have seen explosive growth in recent years, with platforms hosting over 20 million original literary works and 500 million daily active users for short-video apps. To ensure healthy development, regulators have introduced guidelines to curb content and protect intellectual property rights. Content creators are now encouraged to produce works that promote traditional culture and positive values, such as historical stories and scientific popularization. Live-streaming e-commerce, another booming sector, has integrated with rural revitalization, helping farmers sell local products to national and global markets through real-time interactions. 4周前 请阐述文献检索途径 2026-09-09 评论0 请先 登录
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