<dd id="mimiw"><samp id="mimiw"></samp></dd>

<address id="mimiw"><nav id="mimiw"><delect id="mimiw"></delect></nav></address>

    Suzhou Electric Appliance Research Institute
    期刊號: CN32-1800/TM| ISSN1007-3175

    Article retrieval

    文章檢索

    首頁 >> 文章檢索 >> 往年索引

    基于微觀形貌的電纜腐蝕現(xiàn)象研究

    來源:電工電氣發(fā)布時(shí)間:2018-06-15 14:15 瀏覽次數(shù):698
    基于微觀形貌的電纜腐蝕現(xiàn)象研究
     
    何春光,賀賢華
    (國網(wǎng)浙江省電力公司寧波供電公司,浙江 寧波 315200)
     
        摘 要:對沿?;@區(qū)中運(yùn)行十年的電力電纜進(jìn)行腐蝕情況的觀測與分析,采用掃描電子顯微鏡觀測腐蝕部位的微觀形貌,并進(jìn)行元素分析。測試結(jié)果顯示:電纜的鎧裝層發(fā)生了嚴(yán)重腐蝕,尤其是在鋼帶交疊處;銅屏蔽層處腐蝕明顯,微觀形貌粗糙有腐蝕產(chǎn)物附著,并且含有氧、氯、硅、鐵、硫等元素。研究結(jié)果表明,在長年運(yùn)行過程中,即使外護(hù)套沒有破損,電纜內(nèi)部也會(huì)發(fā)生腐蝕,仍需加強(qiáng)對電纜外護(hù)套的巡視和監(jiān)測,并在制作中間接頭等時(shí)觀察腐蝕情況,及早發(fā)現(xiàn)腐蝕問題,對電纜進(jìn)行修復(fù)或者更換,避免造成嚴(yán)重后果。
        關(guān)鍵詞:電力電纜;堿性環(huán)境;微觀形貌;腐蝕
        中圖分類號:TM726.4     文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2018)06-0050-04
     
    Research on Cables Corrosion Phenomena Based on Micro Morphology
     
    HE Chun-guang, HE Xian-hua
    (State Grid Zhejiang Province Ningbo Power Supply Company, Ningbo 315200, China)
     
        Abstract: Observation and analysis of corrosion condition were made to the power cable operating in a coastal chemical industrial park for ten years. This paper adopted a scanning electron microscope to observe the micro morphology of corrosion parts and carried out elemental analysis. The test results showed that there was serious corrosion of steel armor, especially in the overlapping part. Corrosion was also obvious at the copper shield. The microstructure was rough with corrosion products adhered to it, which consisted of oxygen, chlorine, silicon, iron, sulfur and other elements. The research results show that even if the insulating sheath has a waterproof effect on the cable, the corrosion is unavoidable due to the operation for all the year round, so that it is necessary to strengthen the inspection and monitoring of the outer sheath of the cable to find out the defects early so as to carry out cables repairing and replacement, avoiding further aggravating the corrosion.
        Key words: power cable; alkaline environment; micro morphology; corrosion
     
    參考文獻(xiàn)
    [1] 段在鵬. 化工園區(qū)供配電工程風(fēng)險(xiǎn)分析及事故救援研究[D]. 北京:北京理工大學(xué),2015. 
    [2] 董兆林,王社峰,葉常青. 交聯(lián)聚乙烯絕緣電纜防水的必要性及其措施[J].  光纖與電纜及其應(yīng)用技術(shù),2017(1) :43-44. 
    [3] 宋卓,郭軍科. 地埋電力電纜塑料外護(hù)套腐蝕因素分析及評價(jià)[J]. 內(nèi)蒙古電力技術(shù),2008,26(1) :16-18. 
    [4] 沈華東. 煤礦電纜腐蝕因素分析及對策[J]. 煤礦機(jī)械,2014,35(1) :173-175.
    [5] 牛海清,徐濤,黃嘉盛,等. 單芯電纜外護(hù)層絕緣缺陷及其差異化檢修策略[J]. 絕緣材料,2015,48(11) :64-68. 
    [6] 徐銳,唐囡,伍發(fā)元. 220 kV變電站電纜屏蔽線腐蝕斷裂的原因[J]. 材料保護(hù),2013,46(1) :62-64. 
    [7] 斯培燦. 單芯中壓交聯(lián)電纜金屬屏蔽層的使用和選擇[J]. 電線電纜,2001(3) :22-24. 
    [8] 趙春梅,賈夢秋,霍金花. 苦咸水中氯離子對銅腐蝕行為的影響[J]. 北京化工大學(xué)學(xué)報(bào)(自然科學(xué)版),2000,27(2) :62-65. 
    [9] 羅正貴,聞荻江. 銅的腐蝕及防護(hù)研究進(jìn)展[J]. 武漢工程大學(xué)學(xué)報(bào),2005,27(2) :17-21. 
    [10] 雷驚雷,李凌杰,蔡生民,等. 弱堿性介質(zhì)中氯離子對銅電極腐蝕行為的影響[J]. 物理化學(xué)學(xué)報(bào),2001,17(12) :1107-1111. 
    [11] 程慶利,侯保榮. 氯化鈉鹽粒覆蓋下銅的腐蝕行為[J].材料保護(hù),2013,46(12) :20-23. 
    [12] WILLIAM A T. 電力電纜工程[M]. 孫建生,譯. 3 版. 北京:機(jī)械工業(yè)出版社,2014. 

     

    亚洲无码av成人在线,亚洲影院AV无码一区二区,亚洲无码第二页,成人无码AV网站在线观看不卡 (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })();