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(duì)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(cè)量方法,通過(guò)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(duì)相關(guān)標(biāo)準(zhǔn)和規(guī)范的修訂提出了建議,并通過(guò)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(lèi)號(hào):TM934.1 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):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
參考文獻(xiàn)
[1] 中華人民共和國(guó)住房和城鄉(xiāng)建設(shè)部. 電氣裝置安裝工程電氣設(shè)備交接試驗(yàn)標(biāo)準(zhǔn):GB 50150—2016[S]. 北京:中國(guó)計(jì)劃出版社,2016:41-42.
[2] 李偉,吳麟琳,張幸,等. 交聯(lián)聚乙烯電纜的老化及其診斷方法研究進(jìn)展[J]. 絕緣材料,2016,49(11):36-44.
[3] 全國(guó)電氣絕緣材料與絕緣系統(tǒng)評(píng)定標(biāo)準(zhǔn)化技術(shù)委員會(huì). 固體絕緣材料介電和電阻特性 第2 部分:電阻特性(DC方法) 體積電阻和體積電阻率:GB/T 31838.2—2019[S]. 北京:中國(guó)標(biāo)準(zhǔn)出版社,2019:2-6.
[4] 卓金玉. 電力電纜設(shè)計(jì)原理[M]. 北京:機(jī)械工業(yè)出版社,1999.
[5] 全國(guó)電線電纜標(biāo)準(zhǔn)化技術(shù)委員會(huì). 額定電壓1 kV(Um=1.2 kV) 到35 kV(Um=40.5 kV) 擠包絕緣電力電纜及附件 第1 部分:額定電壓1 kV(Um=1.2 kV)和3 kV(Um=3.6 kV) 電纜:GB/T 12706.1—2008[S]. 北京:中國(guó)標(biāo)準(zhǔn)出版社,2008:15-20.