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提问人:网友90000002
发布时间:2023-09-14
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![焊接用电缆线外皮必须完整、绝缘良好、柔软,绝缘电阻不得小于()](https://img2.soutiyun.com/shangxueba/askcard/2023-09/14/215/2023091418411954.jpg)
[单选题]
焊接用电缆线外皮必须完整、绝缘良好、柔软,绝缘电阻不得小于()
A.0.5MΩ
B.1MΩ
C.1.5MΩ
D.2MΩ
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_q_ckda.png)
A.0.5MΩ
B.1MΩ
C.1.5MΩ
D.2MΩ
A.应采用单股粗铜线电缆
B.电缆外皮必须完整、绝缘良好、柔软
C.电缆长度不宜超20~30m
D.禁止利用厂房内金属结构做导线电缆
E.焊接电缆可以与油脂等易燃物料接触
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