rs485屏蔽雙絞線RVVSP2*2*0.5通訊軟電纜
耐火銅芯聚氯乙烯絕緣絞型連接用軟電纜TheFire-proofCopperconductorPVCinsulatedtwistedflexiblecable型號(hào)規(guī)格TypeandSizeNHRVS-300/300V2×1.0mm2檢驗(yàn)項(xiàng)目TestItems單位Unit標(biāo)準(zhǔn)要求StandardRequirement檢驗(yàn)結(jié)果TestResults1.20℃時(shí)導(dǎo)體直流電阻DCresistanceofconductorat20℃Ω/KM≤19.519.42.工頻交流電壓試驗(yàn)PowerfrequencyACvoltagetest-施加2.0KV5min不擊穿NobreakdownatACvoltage2.0kV,5min通過(guò)Pass3.絕緣厚度平均值A(chǔ)veragethicknessofinsulationmm≥0.60.74.絕緣厚度點(diǎn)Minimumthicknessofinsulationmm≥0.440.61
rs485屏蔽雙絞線RVVSP2*2*0.5通訊軟電纜