當前位置:天津市電纜總廠橡塑電纜廠>>電力電纜>> YJV 8.7/10KV 1*120銷售YJV 8.7/10KV 1*120高壓電力電纜國標電纜
銷售YJV 8.7/10KV 1*120高壓電力電纜國標電纜
銷售YJV 8.7/10KV 1*120高壓電力電纜國標電纜
中低壓交聯電纜產品標準 Standard 本產品按GB12706《額定電壓35V及以下銅芯、鋁芯塑料絕緣電力電纜》標準生產,同時還可根據用戶需要按電工委員會*標準IEC、英國標準、德國標準及美國標準生產。 The product is manufactured according to the standard of《GB12706 or IEC、BS、DIN and ICEA upon request. 適用范圍 Applications 于 本產品適用于工頻額定電壓3.6/6kv~26/35kv輸配電線路作配送電能子用。 The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6/6kv~26/35kv. 使用特性 Operating characteristics · 工頻額定電壓U0/U為3.6/6kv~26/35kv。 Rated power-frepuency voltage U0/U: 3.6/6kv~26/35kv. · 電纜導體的zui高允許工作溫度:90℃。 Max.admissible operating temperature of the conductor:90℃. · 短路時(zui長時間不超過5s)電纜導體的zui高溫度不超過2500C。 Max. short-circurt temperature of conductor shall not exceed 2500C. (5s maximum duration) · 電纜敷設時環境溫度應不低于00C。 The ambient temperature under installation should not below 00C. · 電纜彎曲半徑:三芯電纜不小于電纜外徑15倍;單芯電纜不小于電纜外徑20倍。 The bending radius of a single-core cable should not less than 20 times of the cable diameter. The bending radius of a single-core cable should not less than 15 times of the cable diameter. 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“zui高系統電壓”的zui大值。于 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. · 三相系統用電纜的U0值*如下表: The values of U0 recommened for cable to be used in three-phase systems are listed below:
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A類系統──該類系統任何一相導體與地和接地導體接觸時,能在1min內與系統分離 B類系統──該類系統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,zui長不超過8h每年接地故障總持續時間不超過125h; C類系統──不屬于A類、B類的系統。 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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生產范圍Production range of cable | ||||||||||||||||||||||||||||||
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