電力電纜線路交接試驗(yàn)標(biāo)準(zhǔn)中電纜絕緣電阻規(guī)定的探討
孫建生,張大鵬,夏俊峰,施楠楠
(上海電纜研究所有限公司,上海 200093)
摘 要:對電力電纜線路交接試驗(yàn)中電纜絕緣電阻以及外護(hù)套和內(nèi)襯層絕緣電阻試驗(yàn)進(jìn)行了研究,分析了絕緣電阻的原理以及測量方法,通過理論研究和數(shù)值計(jì)算得到了電纜外護(hù)套和內(nèi)襯層絕緣電阻的合理的技術(shù)規(guī)定,對相關(guān)標(biāo)準(zhǔn)和規(guī)范的修訂提出了建議,并通過計(jì)算給出了電纜護(hù)套和內(nèi)襯層材料的體積電阻率的最低要求值,供相關(guān)人員參考。
關(guān)鍵詞:電力電纜;交接試驗(yàn);絕緣電阻;體積電阻率
中圖分類號:TM934.1 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2020)07-0063-03
Study on the Regulation of Cable Insulation Resistance in the National Standard of Power Cable Line Handover Test
SUN Jian-sheng, ZHANG Da-peng, XIA Jun-feng, SHI Nan-nan
(Shanghai Electric Cable Research Institute Co., Ltd, Shanghai 200093, China)
Abstract: In this paper, the cable insulation resistance and the insulation resistance test of the outer sheath and inner lining of the power cable line connection test are studied, and the principle and measurement method of insulation resistance are analyzed.Through theoretical studies and numerical calculations, reasonable technical regulations for the insulation resistance of the outer jacket and inner lining of the cable were obtained, and suggestions were made for the revision of relevant standards and specifications.And through calculation, the minimum required value of volume resistivity of cable sheath and inner lining material is given for the reference of relevant personnel.
Key words: power cable; hand-over test; insulation resistance; volume resistivity
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