2025/12/9 3:41:50xie
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
评论信息电缆导体由多根导线绞合而成，它与绝缘层之间易形成气隙，导体表面不光滑，会造成电场集中。在导体表面加一层半导电材料的屏蔽层，它与被屏蔽的导体等电位并与绝缘层良好接触，从而避免在导体与绝缘层之间发生局部放电，这一层屏蔽为内屏蔽层；同样在绝缘表面和护套接触处…
2025/12/9 3:15:59guo
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 2:47:49zhen
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 2:32:43jiu
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 2:18:38qi
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 2:08:48tui
https://infogram.com/36abccaa-b378-4529-8022-70667c89c36f
2025/12/9 0:37:47zhuang
https://infogram.com/f0fae86a-be73-43d3-b3a7-ed4a63163f1e
2025/12/9 0:32:32jin
https://infogram.com/--1hmr6g8jlzv1o2n
2025/12/9 0:28:02miu
https://infogram.com/--1hnq41oplzexp23
2025/12/9 0:20:29lou
https://infogram.com/--1h0r6rzwr5wrw4e
2025/12/9 0:18:16ci
https://infogram.com/74f37699-c47a-49cd-9f65-5638e8e492b1
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