YJV高壓電力電纜10/35KV-3*2.5 小貓電纜
電纜額定電壓的選擇 Voltage designation
· 電纜的額定電壓應適合于電纜系統(tǒng)的運行狀況,用U0/U(Um)kv表示。
U0-電纜設計用的導體對地或金屬屏蔽之間的額定工頻電壓;
U-電纜設計用的導體間的額定工頻電壓;
Um-設備可承受的“最高系統(tǒng)電壓"的最大值。
The rated voltage of the cable for a given applixation shall be suitable for the operating conditions
in the system in which the cable is used,and is expressed in the form of U0/U(Um)kv
Where:
U0-The rated power-frequency voltage between conductors and earth metallic screen ,for which the cable designed;
U - The rated power-frequency voltage between conductos, for which the cable designed;
Um- The maximum value of the“highest system voltage"for which the equipment may beused.
· 三相系統(tǒng)用電纜的U0值推薦如下表:
The values of U0 recommened for cable to be used in three-phase systems are listed below:
高壓電力電纜專業(yè)生產廠家
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U kv
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U m kv
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U 0 * kv
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A 和 B 類系統(tǒng) System categories A and B
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C 類系統(tǒng) Systems categories C
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6
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7.2
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3.6
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6
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10
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12
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6
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8.7
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15
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17.5
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8.7
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12
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20
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24
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12
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18
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30
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36
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18
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-
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35
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40.5
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21
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26
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A類系統(tǒng)──該類系統(tǒng)任何一相導體與地和接地導體接觸時,能在1min內與系統(tǒng)分離
B類系統(tǒng)──該類系統(tǒng)僅包括單相接地故障短時運行的條件,接地故障時間應不超過1h, 但在任何情況下,最長不超過8h每年接地故障總持續(xù)時間不超過125h;
C類系統(tǒng)──不屬于A類、B類的系統(tǒng)。
System category A──This category comprises those systems in which any phase conductor that comes in contact with earth or an earth conductor. is disconnected from the system within 1 min.
System category B ──This category comprises those system which,under faultconditions,are operated,are operated for ashorttimewith one phase earthed.This period should not exceed 1 h..Fora longer period, not exceeding 8h on any occasion, can be tolerated.The total duration of earth faults in any year should not exceed 125h.
System categeory C──This category comprises all systems which do not fall into A and B
電纜的型號Type of cable
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型號 Type
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名稱 Designation
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適用范圍 Application
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YJV
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銅芯交聯(lián)聚乙烯絕緣氯乙烯護套電力電纜 Copper conductor,XLPE insulated and PVC sheathed power cable
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室內、隧道及電纜溝等場所,不能承受機械外力。單芯電纜不允許敷設在磁性管道中。 For laying indoors 、 intunnel or cable trench,unable to bear external mechan-icalforces.Single-core cable in magnetic duct is not permissible
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YJLY
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鋁芯交聯(lián)聚乙烯絕緣乙烯護套電力電纜 Aluminium conductor, XLPE insulated and PVC sheathed power cable
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YJY
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銅芯交聯(lián)聚乙烯絕緣氯乙烯護套電力電纜 Copper conductor ,XLPE insulated and PEsheathed power cable
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YJLY
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鋁芯交聯(lián)聚乙烯絕緣氯乙烯護套電力電纜 Alumimium conductor ,XLPE
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YJV高壓電力電纜10/35KV-3*2.5 小貓電纜
本廠鄭重聲明:
1、簽訂產品質量保障書,承諾-不合格產品絕不出廠。
2、兩年內產品質量跟蹤服務,并將客戶服務記錄在檔案保存20年。
3、確因產品質量問題,我廠將保修、包退、包換、滿足客戶要求。
產品規(guī)格:根據(jù)客戶的要求定做
產品數(shù)量:起訂量為100米,100米-200米價格上浮
包裝說明:米數(shù)短的盤包裝,米數(shù)長的電纜軸包裝
價格說明:電話商議,價格根據(jù)銅價的上浮下降隨時更新
天津市電纜總廠橡塑電纜廠
銷售部:李經(jīng)理
手 機:13613264222
銷售熱線:0316-5962881
0316-5962882
傳真:0316-5961111
YJV高壓電力電纜10/35KV-3*2.5 小貓電纜
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