H3C设备硬件安装基础知识V1[1].0

2008-04-30(-)-PERTN(+)+LNNULL*PENLIEC)220V230V240VULCSA100V110V120VLNPE„L3L2L1()()„,0.1=1.341=0.746kW(kw)(HP)1kj=0.9481(Btu)=1.055kJ(kj)(Btu)oF=9oC/5+32oC=5(oF-32)/9(oC)(oF)1=100kPa(kPa)(bar)1kPa=0.011,=249Pa(Pa)(inH2O)1KPa=0.011Pa=0.004,1=98kPa(kPa)1kPa=0.1451=6.89kPa(kPa)(PSI)1N=0.1021=9.81N(N)(kgforce)1N=0.2251=4.45N(N)(lbforce)1cm2=0.1551=6.45cm2(cm2)(ft2)1mm2=0.0021=645mm2(mm2)(in2)1m=0.621=0.914km(km)(mile)1m=1.091=0.914m(m)(yard)1m=3.281=30.5cm(cm)(m)(ft)1cm=0.3941=25.4mm(mm)(cm)(in)„„„‡‡‡‡‡‡‡‡‡‡‡‡‡‡„„„„„„„„„„„„„(4):(3):(2):(1):„6mm2(1)(2)(3)(4)(6)(5)(6):(5):(4):(3):(2):(1):„0.5m50505mm3.5mm(2):(1):„PEPEPEPEPE„5Ω10Ω„„„„„„„„„„„„„„„„„„2030cm20cm(14):(13):(12):(11):(10):(9):(8):(5):(7):(6):(4):SFP(3):(2):(1):„----„„„„„„„„„„„„„„„„„„„„„„„„„V¾200V~400V¾600V¾800V~900V¾1000V2.ESD¾8000V3‡‡‡„„„„„‡‡411‡‡‡‡~452510%~90%40%-60%5~40255m31043/m³0.01Cl20.05NH30.006H2S0.2SO2mg/m3„„„„„„10CM„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„24„403—41224„„„„„„„