秋霞久久精品国产亚洲av日韩_大学生一级毛片免费视频√_久久热在线视频精品店5_一级大片亚洲无码第一页_久久天堂精品视频_最近完整的2019中文字幕视频_免费国产黄网站在线看_欧美午夜影院一二三区_国产无遮挡裸免费视频在线观看_国产三级精品专1

　　產(chǎn)品簡介Introduction

　　該產(chǎn)品是在緊壓的銅、鋁導體擠制內(nèi)屏蔽層和耐候交聯(lián)聚乙稀或耐候型黑色高密度聚乙稀絕緣層和外屏蔽層而制得(1kV架空絕緣電纜沒有內(nèi)外 屏蔽層)，結(jié)構(gòu)簡單、安全可靠，同時又具有優(yōu)良的機械物理性能和電氣性能，耐電痕、耐沿面放電、耐大氣性能優(yōu)良，與祼電線相比，敷設 間隙小，節(jié)約線路走廊，線路電壓降減小，尤其是減少供電事故發(fā)生，確保人生安全。

　　The products are manufactured by extruding a conductor screen layer, an insulated layer of rough-weather-adaptive XLPE or rough-weather-adaptive black HD-PE or PVC, and an insulation screen layer over the compacted copper/aluminium conductor(no conductor screen layer and insulation screen layer for cables of rated voltage 1kV),with the advantage of simple construction, and excellent mechanical,physical and electrical property as well as fine performance of anti-creeping- discharge, rough-weather-adaptive and creepage-proof. Compared with bare conductor, the product can be laid more closely to save the line gallery, and have less voltage-drop. Above all, the products installed reduce power accidents to insure lives safety.

　　產(chǎn)品標準Standard

　　本產(chǎn)品按GB12527-90、GB14049-93進行生產(chǎn)。

　　The products shall comply with the standards GB12527-90 and GB14049-93.

　　適用范圍Applications

　　本產(chǎn)品適用于高層建筑群、旅游開發(fā)區(qū)及樹木多叢地區(qū)的1kV、10kV、35kV架空輸配電線路。

　　The products fit for transmitting line and distributing line of rated voltage 1kV, 10kV and 35kV in tall buildings, traveling development area and wooded tract.

　　使用特性Operating characteristics

　　1、 電纜額定電壓U0/U分為三種：a.0.6/1kV b. 10kV c.. 35kV。

　　The rated voltage of cable has three classes:

　　2、 電纜導體的長期允許工作溫度：

　　Continuous permissible operating temperature:

　　聚氯乙烯絕緣為70℃;

　　PVC Insulation:70℃

　　聚乙烯絕緣為70℃;

　　PE Insulation: 70℃

　　高密度聚乙烯為75℃;

　　HDPE Insulation: 75℃;

　　交聯(lián)聚乙烯絕緣為90℃;

　　XLPE Insulation: 90℃;

　　3、 短路時(長持續(xù)時間不超過5秒)，電纜的高溫度：

　　Max.Temperature of cable under short-circuit(5sec.Max.Duration)

　　聚氯乙烯絕緣為160℃;

　　PVC Insulation: 160℃;

　　聚乙烯絕緣為130℃;

　　PE Insulation: 130℃

　　高密度聚乙烯為150℃;

　　HDPE Insulation: 150℃;

　　交聯(lián)聚乙烯絕緣為250℃;

　　XLPE Insulation: 250℃;

　　4、 電纜的敷設溫度應不低于-20℃。

　　Laying temperature of cable not less than -20℃

　　5、 電纜使用的環(huán)境溫度為-40~+-40℃，相關濕度雨季不小于90%。

　　Operating ambient temperature of cables:-40~40℃,Relative humidity in rainy season not less than 90% 6、 電纜的允許彎曲半徑：

　　Permissible bending radius of cable:

　　額定電壓0.6/1kV及以下電纜;

　　cable for rated voltage up to and including 0.6/1kV:

　　電纜外徑D<25mm者，彎曲半徑不小于4D;

　　bending radius not less than 4Dfor cable diameter<25mm

　　電纜外徑D≥25mm者，彎曲半徑不小于6D;

　　bending radius not less than 6Dfor cable diameter≥25mm

　　額定電壓10kV、35 kV電纜;

　　cable for rated voltage 10 kV and 35 kV;

　　單芯電纜：20(D+d)±5%;

　　single-core cable:20(D+d)±5%;

　　多芯電纜：15(D+d)±5%;

　　multi-core cable:15(D+d)±5%;

　　式中：D-電纜的實際外徑，mm;

　　Note:D-Over all Diameter of cable

　　d-電纜導體的實際外徑， mm

　　d-Over all Diameter of conductor