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高阻燃電力電纜

閱讀次數：2295 發布時間：2014-6-10 20:13:03

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產品標準 Standard
　　本產品按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》標準生產0.6/1kV-26/35kV塑料絕緣電力電纜，同時還可根據用戶需要按國際電工委員會推薦標準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 GB12706-91、GB12666.5-90、GB/T17650-1998 and GB/T17651-1998 or IEC and DIN and ICEA.

適用范圍 Applications
　　本產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絕緣電纜導體的長期最高工作溫度為70℃。XLPE絕緣電纜導體的長期允許最高工作溫度為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（最長持續時間不超過5s）電纜導體的最高溫度不超過250
Max Short –circurrt temperature of conductor shall not exceed 250.(5s maximum duration)
　　電纜敷設時環境溫度不低于0℃
The installation temperature should not below 0℃
　　電纜阻燃性能滿足GB12666.5-90標準A類相應指標要求。
The flame-ratardant properties of cable comply with the requirements specified in A kind of GB12666.5-90
　　低鹵電纜除應滿足GB12666.5-90標準中A類相應指標要求外，還應滿足GB/T17650.1-1998標準規定的相應指標。
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 .
　　無鹵電纜除應滿足GB12666.5-90標準中A類相應指標要求外，還應滿足GB/T17650.2-1998和GB/T17651-1998標準規定的相應指標。
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
　　電纜額定電壓應適合于電纜的系統的運行狀況，用U₀/U（U_m）表示，均為有效值，單位為kv
　　U₀- 電纜設計用導體與屏蔽或金屬套之間的額定工作電壓；
　　U—電纜設計用導體之間的額定工頻電壓；
　　U_m –設備可承受的“最高系統”電壓的最大值。
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（U_m）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.
U_m- –The maximum value of “the highest system voltage ”for which the equipment may be used.

三相系統用電纜的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，亦可用于最長不超過8小時，每年累計不超過125小時的系統。
第二類——用于接地故障時間更長的系統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

0.6/1kv高阻燃（隔氧層）電纜的生產范圍
Production Range of high performance flame –retardant cable

1.8/3~26/35kv高阻燃（隔氧層）電纜的生產范圍
Production Range of high performance flame- retardant cable

型號 Type		芯數 cores	電壓 Rated voltage kV
銅芯 Copper conductor	鋁芯 Aluminum conductor		1.8/3	3.6/6 6/6	6/10 8.7/10	8.7/15 ~12/20	18/30 ~26/35
銅芯 Copper conductor	鋁芯 Aluminum conductor		標稱截面 Nominal Cross-section Mm²
GZR-YJV GZR-DL(WL)-YJV GZR-YJV22 GZR-DL(WL)-YJV22 GZR-YJV32 GZR-DL(WL)-YJV32	GZR-YJLV GZR-DL(WL)-YJLV GZR-YJLV22 GZR-DL(WL)-YJLV22 GZR-YJLV32 GZR-DL(WL)-YJLV32	1	10~630 10~630 10~630	25~630 25~630 25~630	25~630 25~630 25~630	35~630 35~630 35~630	35~630 35~630 35~630
GZR-YJV GZR-DL(WL)-YJV GZR-YJV 22 GZR-DL(WL)-YJV22 GZR-YJV 32 GZR-DL(WL)-YJV32	GZR-YJLV GZR-DL(WL)-YJLV GZR-YJLV 22 GZR-DL(WL)-YJLV22 GZR-YJLV 32 GZR-DL(WL)-YJLV32	3	10~500 10~500 10~500	25~500 25~500 25~500	25~500 25~500 25~500	35~500 35~500 35~500	35~500 35~500 35~500

注：單芯鎧裝型高阻燃（隔氧層）電纜僅用于直流系統，應采用非磁性材料的鎧裝層或采用隔磁措施。
Note: The single-core armoured high performance flame-retardant cables are used for d.c system only, as for a . c. system non-magnetic aromour materials should be or magnetic isolation should be applied.

電纜結構圖

電纜主要技術參數 Main technical data of cable
20℃時導體最大直流電阻 Max.D.C resistance of conductor at 20℃

電壓試驗、局部放電試驗 Voltage test and partial discharge

導體短路電流 Short –circuit current

電容、電感（參考值） Capacitance and inductance of cable (reference value)
電容 Capacitance

單芯電纜電感 Inductance of single core cable

三芯電纜電感 Inductance of three cores cable

電流載流量 The current carrying capacity
0.6/1kv聚氯乙烯絕緣電力電纜 0.6/1kv PVC insulated power cable (A)

在土壤中的敷設 Buried (A)

0.6/1KV交聯聚氯乙烯絕緣非鎧裝型電力電纜 0.6/1kv XPLE insulated unarmoured power cable (A)

0.6/1KV 交聯聚乙烯絕緣鎧裝型電力電纜 0.6/1kv XLPE insulated armoured power cable (A)

3.6/6~26/35kv

金屬屏蔽層的短路電路 Short circuit current of screen
單芯電纜 Single core

三芯電纜 Three-cores

·載流量計算條件：
Current ratings are calculated for the following installation conditions:
導體最高工作溫度 Max. Rated temperature of the cable conductor
聚氯乙烯絕緣為70℃，交聯聚乙烯絕緣為90℃
PVC insulated 70℃ ,XPLE insulated 90℃
環境空氣溫度：
Ambient air temperature 40℃
土壤溫度：
soil temperature 25℃
土壤熱阻系數：
Rating factors for ground thermal resistive 1.0. ℃ m/w
埋設深度： Depth 0.8m
僅考慮一個回路 Single circuit parallel laid
單芯電纜為水平敷設,間距為一個電纜外徑
Single core is paralleled installation .Adjacent space is equivalent to the diameter of cable.

環境條件對電纜載流量的修正系數
Rating factors of current rating for ambient condition
土壤敷設 Direct in ground
不同土壤溫度下載流量修正系數 Rating factors of current rating for ambient temperature