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1、securityropefence.(2)mustbeequippedwiththeropetubeprotection.(3)positionoftheswitchboxmustbeplacedcorrectly,prohibitreverseswitchoperationsightmustbegood,ifpushbuttonswitch,theoperatorhasapowerswitch,movethebuttonswitchmustbeinthe36-Volt...(2)powercordin
2、tothedropofbend,entrymustbeenteredafterthefusebeforegoingintotheswitchinsidetheoventocompletethegroundingandzeroconnectionterminalBoard,metalcasingshouldbezeroprotection.(3)tapinsidetheboxwheretheairswitch,GFCIabovetosetaseparateswitch.(4)theboxtoseparat
3、esingle-phasethree-holeoutlets,toploadingprotector,usingsingle-phaseequipmentmustbeequippedwithamonophaseplugofthepowersupply.(5)whereamobileswitchbox,housingareliableprotectionofzero(ground),equippedwithabrakeleak.(6)tobeclearlyseparatedfromthe"power","
4、illumination","welding".3,electricitylines:(1)electricline,requiredforoverheadinstallationofresilientrubbersheathedcableorplastic.Adoptedatthelaneorroadprotectionpipeburiedunderground,setupsigns,connectorsmustbeoverheadorlocatedconnectorbox.(2)rubbercabl
5、eportablepowertools,leadlengthnotmorethan5mfromtheswitchbox,withoutjoints.(3)usemobilepowertoolsandlightingaresoftrubbercord,donotuseplasticresinlineinstead.(4)temporarywiringinstallations,usearubberorplasticinsulatedwiresmustbeknobcablessetup,switchset.
6、4,groundingandzeroingdevice:(1)groundingelectrodeavailableangles,steelofnotlessthantwo,depthofnotlessthan2mandnotlessthan2.5metresindistancebetweentwogrounding,groundingresistanceislessthan4ohm.(2)ground(neutral)wiresusinginsulatedcopperwire,donotusealum
7、iniumwireforgrounding(neutral)wirejointsbywelding,crimpingareliableelectricalconnection.(3)rubbercablecoreinthe"black"or"green/HuangShuang-color"lineasthegroundwire.5,highvoltagelineprotection:(1)inthevicinityofoverheadpowertransmissionlineconstruction,e
8、rectionofbambooprotectionframe.(2)inthevicinityofhighvoltagecableerectionDerrick(gantry),scaffoldingoutsidepowerlinesabovethewater,allsafetynets(Booth).6,handheldormobilemotor:switchboxmusthaveleakageprotectiondevices,leak
