NHVV電纜-供應(yīng)商使用特性 ·工頻額定電壓U0/U:0.6/1kV。 Rated power-frequency voltage U0/U:0.6/1kV. ·電纜導(dǎo)體的最高允許長(zhǎng)期工作溫度(PVC/XLPE):70℃/90℃. Max.permissible continuous operating temperature of conductor (PVC/XLPE): 70℃/90℃ ·短路時(shí)(最長(zhǎng)持續(xù)時(shí)間不超過(guò)5s)電纜導(dǎo)體最高允許溫度 PVC:導(dǎo)體截面≤300mm2-160℃ 導(dǎo)體截面>300mm2-140℃ XLPE:250℃ Max.short-circuit temperature of the conductor shall not exceed(5s maxiumduration): PVC:cross-section of conductor≤300mm2-160℃ cross-section of conductor>300mm2-140℃ XLPE:250℃ ·電纜敷設(shè)時(shí)環(huán)境溫度應(yīng)不低于0℃ The ambient temperature under installation should not below 0℃ ·電纜的彎曲半徑:多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。