工频电磁辐射的危害不容忽视

dvdtdidt · 发表于 2008-1-18 10:23:26

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根据研究及相关测试表明，变压器、超高压配电装置和超高压输电线在运行中，会形成一定强度的工频电磁辐射。据相关资料显示，550KV输电线的工频电场辐射在距地面1.5m处可以达到9.7KV/m之高。工频磁场对计算机显示器偏转系统可能产生较严重的干扰，具体现象是，使显示器的显示画面发生抖动，显示器边缘可能出现色斑。高强度的工频电磁辐射还可能造成计算机死机。高压架空电力线路和变电站的运行，会产生无线电噪声，这种无线电噪声严重时，会对电力线路和变电站附近居民的无线电（主要是中、短波广播）接收和专业无线电台站的工作造成骚扰影响。由于电力线路和变电站占地大，尤其是电力线路长度可能达几百公里，影响范围广，通常情况下，架空电力线路和变电站无线电噪声的产生有三类根源：分别是，在导线及其金属表面处空气中的电晕放电；绝缘子承受高电位梯度区域中放电并产生火花；连接松动或接触不良产生的间隙火花放电。当运行电压在100KV以上（通常导线表面电位梯度>12KV/cm）时，第一种根源占据主导地位，成为不可消除的，属线路固有的特性。 <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">到<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-fareast-font-family: 宋体"><a href="http://www.emcgarden.net/">电磁兼容(EMC)和电磁干扰(EMI)学习园地</a>( <a href="http://www.emcgarden.net/">http://www.emcgarden.net</a> )<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">学习各种电磁兼容<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-fareast-font-family: 宋体">(EMC)<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">设计整改经验知识以及各种电磁干扰<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-fareast-font-family: 宋体">(EMI)<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">解决措施，到<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-fareast-font-family: 宋体"><a href="http://www.studyemc.net/">电磁兼容(EMC)和电磁干扰(EMI)下载园地</a>( <a href="http://www.studyemc.net/">http://www.studyemc.net</a> )<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">下载各种<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-fareast-font-family: 宋体">EMC<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">标准和<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-fareast-font-family: 宋体">EMC<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">资料以及安规防雷静电放电<span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-fareast-font-family: 宋体">ESD<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt">等资料。此文侧重电磁辐射的个体防护和测试，有必要就电磁辐射对其他电子设备的干扰和其他电磁兼容问题作进一步的论述。

roger_cai · 发表于 2008-4-6 21:29:59

生命很重要，
我们大家要经常关心关心这些贴子，
感谢楼主。

hambot · 发表于 2008-4-9 05:03:23

没这么严重吧。。一般不会靠高压线这么近

sharonhuang · 发表于 2008-5-29 14:41:19

工频磁场很少测的哦

dzy198364 · 发表于 2008-5-29 15:04:22

那时因为大家都错误的以为频率越高辐射越大

emilystudy · 发表于 2008-7-26 11:50:24

什么电器都没有辐射就好了,减少对人类的危害, [s:24]

阿里巴巴 · 发表于 2008-9-13 21:14:16

电业局里边在变电站甚至带电在高压线上工作的人群死亡率、癌症率、绝育率是多少？

cqliym · 发表于 2008-10-21 17:58:52

工频电场有什么危害?

zhu_ji888 · 发表于 2009-10-16 16:35:46

关键还是接地做的好不好，高变需要做屏蔽柜进行屏蔽。

deco_2010 · 发表于 2010-1-2 17:00:42

这样看来小区里面的高压电线确实对人体没有好处啊，怕怕

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工频电磁辐射的危害不容忽视

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