額定電壓35KV及以下銅芯、鋁芯塑料絕緣電力電纜
| 添加時間： | 2022-04-14 19:03:26 |
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產(chǎn)品標(biāo)準(zhǔn) Standard
本產(chǎn)品按GB12706-91《額定電壓35KV及以下銅芯、鋁芯塑料絕緣電力電纜》、GB12666.5-90《電線電纜成束燃燒試驗》、GB/T17650-1998《取自電纜或光纜的材料燃燒時釋出氣體的試驗方法》和GB/T17651-1998《電纜或光纜在特定條件下燃燒的煙密度測定》標(biāo)準(zhǔn)生產(chǎn)0.6/1kv~26/35kv塑料絕緣電力電纜，同時還可根據(jù)用戶需要按國際電工委員會推薦標(biāo)準(zhǔn)IEC、英國標(biāo)準(zhǔn)、德國標(biāo)準(zhǔn)及美國標(biāo)準(zhǔn)生產(chǎn)。
The product is manufactured according to the standard of GB12706-91、GB12666.5-90、GB/T17650-1998 and GB/T17651-1998 or IEC and DIN and ICEA.
適用范圍 Applications
本產(chǎn)品適用于工頻額定電壓0.6/1kv~26/35KV 輸配電線路作配送電能之用。
The product is suitable for power transmission and distribution lines with rated voltage 0.6/1kv~26/35kv.
使用特性 Operating characteristics .
工頻額定電壓U0/U為0.6/1kv~26/35kv.
Rated power frequency voltage U0/U:0.6/1KV~26/35KV.
PVC絕緣電纜導(dǎo)體的長期z高工作溫度為70℃。XLPE絕緣電纜導(dǎo)體的長期允許z高工作溫度為90℃
PVC insulated power cable Max . permissible continuous operating temperature of the conductor should not exceed 70 ℃,XPLE permissible continuous operating temperature of the conductor should not exceed 90℃.
短路時（z長持續(xù)時間不超過5s）電纜導(dǎo)體的z高溫度不超過250
Max Short –circurrt temperature of conductor shall not exceed 250.(5s maximum duration)
電纜敷設(shè)時環(huán)境溫度不低于0℃
The installation temperature should not below 0℃
電纜阻燃性能滿足GB12666.5-90標(biāo)準(zhǔn)A類相應(yīng)指標(biāo)要求。
The flame-ratardant properties of cable comply with the requirements specified in A kind of GB12666.5-90
低鹵電纜除應(yīng)滿足GB12666.5-90標(biāo)準(zhǔn)中A類相應(yīng)指標(biāo)要求外，還應(yīng)滿足GB/T17650.1-1998標(biāo)準(zhǔn)規(guī)定的相應(yīng)指標(biāo)。
The flame-retardant properties of lower halogen cable comply with requirements specified in A kind of GB12666.5-90 except compluing with requirements specified in GB/T17650.2-1998 .
無鹵電纜除應(yīng)滿足GB12666.5-90標(biāo)準(zhǔn)中A類相應(yīng)指標(biāo)要求外，還應(yīng)滿足GB/T17650.2-1998和GB/T17651-1998標(biāo)準(zhǔn)規(guī)定的相應(yīng)指標(biāo)。
The flame-retardant properties of no halogen cable comply with requirements specified in A kind of GB12666.5-90 except compluing with requirements specified in GB/T17650.2-1998 .and GB/T17651-1998.
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。
Three bending radius of a single core should not less than 20 times of the cable diameter
Two bending radius of a three-core cable should not less than 15 times of the cable diameter.
電纜額定電壓的選擇 Voltage designation
電纜額定電壓應(yīng)適合于電纜的系統(tǒng)的運行狀況，用U0/U（Um）表示，均為有效值，單位為kv
U0- 電纜設(shè)計用導(dǎo)體與屏蔽或金屬套之間的額定工作電壓；
U—電纜設(shè)計用導(dǎo)體之間的額定工頻電壓；
Um –設(shè)備可承受的“z高系統(tǒng)”電壓的z大值。
The rated voltage of the cable for a given application shall be suitable for the operating condition in the system in which the cable is used , and is expressed in the form of U0/U（Um）are applied to the system voltages and running state , and expressed in the form U0/Ukv.
U0-The rated power-frequency voltage between conductor and earth or metallic screen ,for which the cable designed .
U-The rated power –frequency voltage between conductors for which the cable designed.
Um- –The maximum value of “the highest system voltage ”for which the equipment may be used.
三相系統(tǒng)用電纜的U0值推薦如下表：
The values U0 recommended for cables to be used in three-phase systems are listed below:
第一類——用于單相接地故障時間每一次一般不大于1min，亦可用于z長不超過8小時，每年累計不超過125小時的系統(tǒng)。
第二類——用于接地故障時間更長的系統(tǒng)及對電纜絕緣性能要求較高的場合。
The first class cable – suitable for one single –phase earthing – block time does not exceed one minute each time. Max. time not exceed 8 hours ,and not exceed 125 hours in all in one year.
The second class cable – suitable for more the earthing – block time and more better insulated performa. 電纜的型號 Type of cable
