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1、西部交通建设科技项目交通编号：合同号：2002-318-000-30单位编号：CCRDI－DK－2A8密级：秘密分类号：U41桥面铺装材料与技术研究研究报告简本重庆交通科研设计院重庆渝东高速公路有限公司长安大学东南大学二00五年六月indicatethedirectionofthearrowmark;avarietyofemergencylights,emergencyresponsetimeofnotlessthan45min.5.protectivegrounding(1)electrica
2、lequipmentformetalhousings,metalframe,metalwiringpipesandaccessories,cableprotectiontubes,metalsheathofthecable,suchaschargedbaremetalpartsshallbegroundedorneutral.(2)electricalequipmentandfittingsofdedicatedgroundwireshouldbesingledoutandgroundingli
3、neorthezeroconnectionprotectionline(network)connectedtoelectricalwiringworkinthezerolineshouldnotbeusedasprotectiveearthingwire.(3)electricalequipmentandearthingconnection,usemultiplesoftstrandedwire,theircopperwireminimumareashallnotbelessthan4mm2,v
4、ulnerabletomechanicaldamageofpartsshouldbeinstalledinprotectiontubes.(4)electricaldeviceforarmoredcableandgroundorneutralwireshouldbeconnectedtotheequipmentgroundingboltsinside,steelandmetalcasingshouldbeconnectedtotheequipmentgroundingbolt.(5)ground
5、ingboltsshouldhavealockingdeviceorpetty,beforefasteningthegroundingline,onitsgroundterminaland...Projectorganization.Projectorganizationiscomposedofthreelayers:thecorelayer,managementandoperationallevel.1.corelayer:formedbytheprojectmanager,Assistant
6、ProjectManager,responsibleforconstructionwork,materialsandequipment,managementandcoordination.2.Management:engineering,technology,financeandbudget31西部交通建设科技项目交通编号：合同号：2002-318-000-30单位编号：CCRDI－DK－2A8密级：秘密分类号：U41桥面铺装材料与技术研究研究报告简本重庆交通科研设计院indicatethedi
7、rectionofthearrowmark;avarietyofemergencylights,emergencyresponsetimeofnotlessthan45min.5.protectivegrounding(1)electricalequipmentformetalhousings,metalframe,metalwiringpipesandaccessories,cableprotectiontubes,metalsheathofthecable,suchaschargedbare
8、metalpartsshallbegroundedorneutral.(2)electricalequipmentandfittingsofdedicatedgroundwireshouldbesingledoutandgroundinglineorthezeroconnectionprotectionline(network)connectedtoelectricalwiringworkinthezerolineshouldnotbeusedasprotectiveearthingwire.(
