產品標準 Standard 本產品按GB12706《額定電壓35kv及以下銅芯、鋁芯塑料J緣電力電纜》標準生產。 The product is manufactured according to the stand of GB12706 or IEC,BS,DIN and ICEA upon request. 適用范圍 Applications 本產品適用于工頻額定電壓0.6/1KV及以下配電網或工業裝置中固定敷設之用。 The product is suitable for use in power distribution lines or fixed insta-llations with rated power-frequency voltage up to and including 0.6/1KV.
使用特性 Operating characteristics 工頻額定電壓Uo/U為0.6/1KV。 Rated power-frequency voltage Uo/U:0.6/1KV. 電纜導體的允許長期工作高溫度為70℃ Max.permissible continuous operating temperature of conductor: 70℃ 短路時(長持續時間不超過5s)電纜導體的允許高溫度: 導體截面 ≤ 300mm2 – 160℃; 導體截面 300 – 140>℃; Max.short-circuit temperature of the conductor shall not excssd: (5smaximum duration).Cross-section of conducter ≤ 300mm2 – 160℃; Cross-section of conducter > 300mm2 – 140℃, 電纜敷設時環境溫度應不低于0℃。 The ambient temperature under installation should should not below0℃ 電纜彎曲半徑不小于電纜外徑10倍。 The bending radius of a cable should not be less than 10 times of the cable diameter. 電纜的型號 Type of cable
生產范圍 Production range of cable
·0.6/1kv,單芯聚氯乙烯J緣聚氯乙烯護套電力電纜(VV,VLV) 0.6/1kv,Single-core,PVCInsulated,PVCSheathed Power Cable
說明: 單芯鎧裝電纜僅用于直流系統,若用生交流系統,應采用非磁性材料鎧裝或司磁措施。 Note : The armoured single-core cables are used for d.c. system only. As for a.c. system , non magenetic armour material should be used , or a magnetic isolation should be applied .
在空氣中敷設 1、單芯電纜平行敷設時中芯距離:185mm2及以下為電纜直徑的2倍;240 mm2及以上為90 mm。 2、周圍環境空氣溫度:40℃ 3、導體的長期高工作濕度:70℃ In air 1、 The single – core cables are parallel laid , the distance between the cable center is 2 times of the cable diameter for cross – section area of conductor ≤185mm2 and 90 mm for cross- sectional area of conductor ≥240 mm2 2 Ambient air temperature : 40℃ 3 Max.Contionous operating temperature of conductor : 70℃ 不同環境溫度下載流量的修正系數 Current rating factors for variation in ambient air temperatare
環境空氣溫度 Ambient air temperature
20 ℃
25 ℃
30 ℃
35 ℃
40 ℃
45 ℃
修正系數 Rating factor
1.29
1.22
1.15
1.08
1.0
0.91
直埋敷設 1、單芯電纜不接觸敷設時,電纜中芯距離為電纜直徑的2倍. 2、土壤溫度: 25℃ 3、導體的長期高工作溫度: 70℃ 4、土壤熱阻系數: 1.0℃.m/w 5、直埋深度:0.7m Direct in the ground 1、The single – core cables are installed separtely , the distance between the cable center is 2 times of the cable diameter . 2、Soil temperature : 25℃ 3、Max . Contionous operating temperature of conductor : 70℃ 4、Thermal resistivity of soil : 1.0℃.m/w 5、Depth of laying: 0.7m
不同土壤溫度下載流量的修正系數 Current rating for variation in soil temperature