5、rtoftheforcefulelectricpowermainlyincluding:thedistributionsystemofthelowvoltage,lightingsystemandroundingforlighteningsystematicalcompose,amongothersincludeloadcalculation,illuminationcalculation.Themajoronesare lighting andsocketsystem plan layout, equipment selection,accordingtothe
6、roomilluminationrequirementsofthedifferentilluminationcalculationbasedontheresultsofthecalculation results choosethe appropriate lighting. Also on the supplyandlightningprotectiongroundingsystemdesign.Thepartofthelightcurrentmainlyincluding:CATV,elephoneandInternetsystemsandsoon.Thede