【正文】 copper tape or copper wire.隔離套（有鎧裝電纜）Inner sheath（Armoured cables）采用聚氯乙烯（PVC）或聚乙烯（PE）擠包在纜芯上。金屬帶采用雙層間隙繞包，金屬絲采用多根同心絞合。The amour of the multiple cable shall be zincplated steel tape or wire, but the amour of the single cable used in AC circuit shall be nonmagnetic metaltape or metalwire. The tapering mode of metal tape should adopt double layer open tapering, and the mode of metal wire shall multiple concentric stranding.Note: A large number of facts show that the single cable with the special structure amour in the AC circuit exists the heating phenomenon, thus causing the reduction of current capacity. The manufacturer don39。交聯(lián)聚乙烯絕緣阻燃電力電纜采用阻燃聚氯乙烯護(hù)套料或阻燃聚乙烯（PE）護(hù)套料擠包在鎧裝、金屬屏蔽或纜芯上交聯(lián)聚乙烯絕緣無鹵低煙阻燃電力電纜采用無鹵低煙阻燃護(hù)套料擠包在鎧裝、金屬屏蔽或纜芯上。The outer sheath of the cable shall have the following information printed at regular intervals throughout the length of the cable: Manufacturer39。For the parameters of technical performance index of cables, please see table 717 表7 電纜通用技術(shù)性能參數(shù)Table 7 The parameters of technical performance index of cables試驗(yàn)項(xiàng)目Test items技術(shù)參數(shù)Technical performance index6/66/1012/2018/3021/3526/35局部放電試驗(yàn)（ U0下最大局部放電量）/pCPartial discharge test Maximum discharge at U0/ pC≤5工頻交流電壓試驗(yàn)（ U0，持續(xù)時間5min）/kVPower –frequency .AC. voltage( U0,/5min)/kV214263914h工頻交流電壓試驗(yàn)（4U0，持續(xù)時間4h）/kV Highvoltage test four 4 hours－2435487284104沖擊電壓試驗(yàn)/kVImpulse voltage－6075759512517020020090℃時介質(zhì)損耗角正切（tgδ）Dielectric loss tangent in 90℃（tgδ）≤80*104絕緣熱延伸試驗(yàn)（溫度200177。3℃, the duration time is 15m,the mechanical stress is 20N/cm2 )－負(fù)載下最大伸長率/％－The maximum extensibility on load/％－冷卻后最大永久伸長率/％ －the maximum Permanent extensibility after being cooled/ %1000～10絕緣電阻常數(shù)（Ki）/MΩ?kmInsulation resistance constant （Ki）/MΩ?km－20℃時－90℃時367表8 導(dǎo)體電阻Table 8 Resistance of conductor 導(dǎo)體標(biāo)稱截面/mm2Nominal cross area of conductor/mm220℃導(dǎo)體直流電阻≤/Ω/kmResistance of conductor in 20℃ ≤導(dǎo)體交流電阻/Ω/kmConductor AC resistance/Ω/km銅導(dǎo)體Copper core鋁導(dǎo)體Aluminium core.銅導(dǎo)體Copper core鋁導(dǎo)體Aluminium core.101625355070951201501852403004005006308001000——1200——表9 電纜電容Table9 Capacitance of cable導(dǎo)體標(biāo)稱截面/Nominal cross area of conductor/mm2每相電容/μF/kmCapacitance of each phase/μF/km6/66/1012/2018/3026/3510—————16—————25———35——507095120150185240300400500630表10 單芯電纜電感 (S=2D)* Table10 Inductance for singe core cable(S=2D)* 導(dǎo)體標(biāo)稱截面/mm2Nominal cross area of conductor/mm2電感/μH/km Inductance/μH/km6/66/1012/2018/3021/3526/3510—————16—————25———35——507095120150185240300400500630注：*：S — 相鄰兩根電纜之間的中心距離，D — 電纜外徑 S —The distance between the two adjacent cable center, D —The overall diameter of the cables.表11 三芯電纜電感Table11 Inductance for three core cable導(dǎo)體標(biāo)稱截面/mm2Nominal cross area of conductor/mm2電感/μH/kmInductance/μH/km6/66/1012/2018/3021/3526/3510—————16—————25———35——507095120150185240300400500——630————表12 Table12 敷設(shè)條件：導(dǎo)體最高溫度：90℃，環(huán)境溫度：25℃，℃?m/W，單根敷設(shè)。導(dǎo)體標(biāo)稱截面/mm2Nominal cross area of conductor/mm2非鎧裝電纜Unarmored鎧裝電纜Armored單芯 singe—core三芯three—core三芯three—core銅芯Copper core鋁芯Aluminium core.銅芯Copper core鋁芯Aluminium core.銅芯Copper core鋁芯Aluminium core.空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried2516516013012013515010511513515010511535205190155145160180130140165175130140502452251901751952101551651952051501657030527523521524526019020024525519019595370330290255300305235240300300230235120430375335290345350270275345345265270150490425380330395390310305390385305300185560480435370455445355350445435350340240665555515435540515420405525505410390300765630595490615580485455595565470445400890725695565720660575525695645550510500950840780660————————6301060950885760————————800117010801000870————————1000127011901100970————————12001310127011701060————————表13 6/6kV和6/10kV電纜載流量Table13 6/6kV and 6/10kV current carrying of cable敷設(shè)條件：導(dǎo)體最高溫度：90℃； 環(huán)境空氣溫度：40℃； 土壤溫度：20℃；℃?m/W，單根敷設(shè)。導(dǎo)體標(biāo)稱截面/mm2Nominal cross area of conductor/mm2非鎧裝電纜Unarmoured鎧裝電纜Armoured單芯 singe—core三芯three—core三芯three—core銅芯Copper core鋁芯Aluminium core.銅芯Copper core鋁芯Aluminium core.銅芯Copper core鋁芯Aluminium core.空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried空氣中In air土壤中Buried25165160130120140148105116140148105116352051901551451651801301381651751301385024522519017520021015516420520816016