VLV42 VV42 VLV42電纜 粗鋼絲鎧裝電纜產(chǎn)品標(biāo)準(zhǔn) Standard 本產(chǎn)品按GB12706《額定電壓35kv及以下銅芯、鋁芯塑料絕緣電力電纜》標(biāo)準(zhǔn)生產(chǎn)。 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(chǎn)品適用于工頻額定電壓0.6/1KV及以下配電網(wǎng)或工業(yè)裝置中固定敷設(shè)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(dǎo)體的允許長期工作最高溫度為70℃ Max.permissible continuous operating temperature of conductor: 70℃ 短路時(shí)(最長持續(xù)時(shí)間不超過5s)電纜導(dǎo)體的允許最高溫度： 導(dǎo)體截面 ≤ 300mm2 – 160℃； 導(dǎo)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(shè)時(shí)環(huán)境溫度應(yīng)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(hào) Type of cable
在空氣中敷設(shè) 1、單芯電纜平行敷設(shè)時(shí)中心距離:185mm2及以下為電纜直徑的2倍；240 mm2及以上為90 mm。 2、周圍環(huán)境空氣溫度:40℃ 3、導(dǎo)體的長期最高工作濕度: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(huán)境溫度下載流量的修正系數(shù) Current rating factors for variation in ambient air temperatare
直埋敷設(shè) 1、單芯電纜不接觸敷設(shè)時(shí),電纜中心距離為電纜直徑的2倍. 2、土壤溫度: 25℃ 3、導(dǎo)體的長期最高工作溫度: 70℃ 4、土壤熱阻系數(shù): 1.0℃.m/w 5、直埋深度:0.7m Direct in the ground 1、The single – core cables are installed separby , 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(shù) Current rating for variation in soil temperature
