apple技術(shù)標(biāo)952the top5specific risks and responses9 52針對項(xiàng)目安全特殊風(fēng)險及控制措施

9.5SafetyandHealthyManagement9.5.29.5.2Specialhazardandcontrolmeasuresonproject第一節(jié)針對本項(xiàng)目分Section ysisonprojecthazard根據(jù)以往類似大型辦公樓項(xiàng)目的經(jīng)驗(yàn)以及針對本工程特點(diǎn)，認(rèn)為本工程存在以下重點(diǎn)：Accordingtothepastlargeofficebuildingprojectsexperienceofour andthefeaturesofthisproject,our thinksthatthisprojecthasthefollowingmajorhazardEHSconstructiontformwithIndoorheightGuardrailofequipmentchannel,elevator,staircase,andcorridorSafetycontroloftransportationandstorageofflbleControlofelectricsafetyonFirecontrolonPreventionandcontrolofcuttingandweldingLiftingandmaterialverticallytransportationWherein,themostspecialhazardsrelatingtoprojectsafetyarepredictedas序 重

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ClimbingHotMachinePoweruseDemolishingandhoistingEdge-adjoiningNight

MajorhazardUnstablelaying,nosafetyprotectionmeasuresNofiresafetymeasures,noanti-backfiredeviceWearingnogloves,goggles,orotherprotectiondevicesduringNoinsulationdetectionperformedbeforeuse,andnocontactprotectiondeviceUn-isolatedconstructionarea,un-fixedliftingobjectsTrafficsafetyofundergroundNoguardrailontheedge,anduncoveredopening nel,weaksafety

probablycausedfallingaccident,objectstrikingFire,explosionharm,electricElectricshock,CrashinjuryofheavyobjectCaraccidentobjectstrikingVarious第二節(jié)Section2MeasuresonsafetyhazardFivespecialhazardsandavoidance1DevicedemolishingandCause:thisprojecthasagreatdealofdemolishingwork,suchasthedemolishingofsuspendedaluminumboard,airductandventilationdevice,inwhichprocessmisoperationmaydamagethedeviceandendangerthesafetyofthebuilders.較大的物件每拆除一件設(shè)備時應(yīng)做到拆除并至地面完成后方可暫停b.Countermeasures:inthedismantlementoperation,redandwhiteflagsshallbeusedtoisolatethedemolishingarea,andalternatingconstructionisnotallowedtoperformbelowthedismantlingarea.Itshallbecheckedpriortothedemolishingorhoistingwhetherallthetoolsandtheusedhoisteraresafe,firmandreliable.Thedismantledobjectshallnotbethrowndirectlyontotheground,butshallbetiedfirmlywithropesanddeliveredtothebuildersontheground.Inthedismantlementoperation,thedismantledobjectshallbedeliveredtothegroundintime,andtheusedtoolsshallbecarriedabout.Thedismantlementisnotallowedtostopatwillespeciallyforthelargeequipmentorheavyobject;theoperationmaybesuspendedtohavearestafterthedismantledequipmentisdismantledanddeliveredtotheground,incasethattheequipmentcrashesthebuildersbelowduetoinsufficientsupport.Duringequipmenthoisting,thehoistingropesarenotallowedtounfastenuntiltheequipmentisfirmlyinstalled,andthehoistingoperationshallnotbestoppedatwillduringhoistingifthereisnopotentialsafetyhazardorotherreasons.Safedemolishingoforiginalpower燈具、線管拆除后及難免出現(xiàn)大量電線及線頭露，一般施工人員無法識別線路是否有電，Cause:theprojecthasagreatdealofdemolishingwork;becausethepreliminarydecorationworkhasbeencompleted,variousenergymediumshavebeeninnormaloperation,andtherewillbeunavoidablyalargetyofexposedcablesandwireendsafterthelampsandwirepipesaredismantledonsite,butcommonbuilderscannotidentifywhetherthewiresareelectrifiedornot,soelectricshockaccidentsareeasytohappen.絕緣膠布包裹好露線頭。Countermeasures:priortoconstruction,afull-timeelectricianshallcheckthepowercontrolcircuitoneachfloor;apowerwireshallbeconnectedfromtheswitchroomoneachfloortosupplypowerfortheconstructionofthefloor;theconstructionpowerwireshallbemarkedclearlyontheway;thepowersofallothercircuitsshallbecutoffandpastedwiththe“forbidtoswitchon”sign;thepoweroftheconstructionpowercircuitshallbesignedseparay;thepowerdistributionboxshallbelocked,andthestaffbesidesthefull-timeelectricianarenotallowedtoentertheswitchroom.Constructionshallnotcommenceuntilthefull-timeelectricianchecksandconfirmsthatthepowercircuitissafepriortotheconstructioneveryday.Anyexposedwireend,oncefound,shallbeenwrappedwithinsulatingtapesimmediay.FloorperforatingandedgeCause:equipmentholesarerequiredtobeperforatedoneachfloorinthisprojecttoinstallequipment,somebigopeningswillcausesomepotentialsafetyhazardsduringandafter0.25㎡，切割的混凝土塊應(yīng)及時空口四周使用擋板進(jìn)行Countermeasures:theopeningsshallbeperforatedbythesequencefromupperfloortolowerfloor;thecorrespondingareaonthelowerfloorshallbeenclosedforisolationduringperforation,andshallbesuspendedwiththewarningsloganof“perforatingabove,cautionofcrash”.Thecutconcreteblocksarenotallowedtodirectlyfallontothelowerfloorduringperforation;thecutareaeachtimeshallnotbelargerthan0.25squaremetersasrequiredbypracticalsituation;thecutconcreteshallbetimelydeliveredoutofsite.Aftertheopeningcuttingiscompleted,theopeningshallbeblockedwithawoodtebelowwhichkick-proofbattensshallbecustomizedaccordingtothesizeoftheopening.Theopeningsshallbeisolatedwithbaffletesaround.4HotCause:thisprojecthasagreatdealofhotworkwhichhasinfluencedtheenvironment，影響影響應(yīng)采取保護(hù)措施。動火作業(yè)結(jié)束半小時后監(jiān)護(hù)人員確認(rèn)現(xiàn)場無火災(zāi)隱患，Countermeasures:theelectricweldingoperationonconstructionsitemustbeoperatedbythespecialoperationstaffhavingtheelectricwelding ;iftheelectricweldingoperationisrequired,hotworkshallbeappliedtothesafetyofficeoftheprojectdepartmentatleastonedaypriortotheoperation;full-timesupervisorandfire-extinguishingapparatusmustbeequippedonthehotworksite;safetyeducationshallbeperformedonthehotworkoperatorandsupervisortoimprovetheirsafetyawareness.Thesupervisorshallcheckpriortohotworkwhetherthereareinflbleobjectsinthehotworkareaandwhethertheflyingsparkshaveaninfluenceontheenvironmentaround;ifthecurtainwallglassandcompletedconstructionsurfacelayeraredamagedorinfluenced,thenisolationprotectionmeasuresshallbetaken.Thesupervisorshallconfirmthatthereisnopotentialfiredangeronsitebeforeleavinghalfanhourlaterafterthehotworkis5.Builderexit-entrance，原因：由于施工人員及材料進(jìn)出通道設(shè)置在室車庫現(xiàn)已正常運(yùn)轉(zhuǎn)，交通安全存在，Cause:thebuilderandmaterialexit-entrancepassageisarrangedinthebasement;theundergroundgaragehasbeeninnormaloperation,sotherearesomepotentialsafetyhazardsfortrafficsafety.：：Countermeasures:theundergroundgarageisprovidedwithabuilderexit-entranceprivatepassage,andconstructionguardrailsforseparatedprotection;warningsignswillbearrangedalongtheroad;andsecurity nelwillbearrangedtosupervisetheworkerstoabidebythetrafficrulesduringtherushhours.Safeproductionandcontrolmeasuresofthe30cm為宜，不缺檔，使用負(fù)荷≯1100N。Laddersorotherclimbingfacilitiesshallbeusedinclimbingactivity.Thestructureoftheclimbingfacilityshallbefirmandreliable;thespacebetweentheladderpedalsshallbe30cmwithoutabsence,andtheappliedloadshallnotbemorethan1100N.75度±535度～45度，且鉸鏈牢固，拉撐可靠。梯子如需Thebottomofthetravellingladdershallbefirmandsolid,beprovidedwithanti-skids,andshallnotbepaddedhigh;thetopoftheladdershallbefixedfirmly;theworkingangleoftheerectedladdershallbe75±5degrees,andthetopincludedangleofafoldingladdershallbe3545degreeswiththefoldingladderhingedfirmlyandstayedreliably.Iftheladdersarerequiredtobeelongatedforuse,thentheconnectionshallbereliableandthejointshallnotbemorethanone;andthestrengthoftheconnectedladdershallnotbelessthanthebeamstrengthofasingleladder.Firmfootholdsshallbeprovidedintheoverheadoperation;protectivegratingnet,guardrailothersafetymeasuresshallbeequippedas4、各工種進(jìn)行上下立體作業(yè)時，在同一垂直方向操作，下層作業(yè)的范圍位置必須在上Whenallkindsofworksareperformedsimultaneouslyondifferentfloors,itisnotallowedtooperateonthesameverticaldirection;thelowerflooroperationmustbebeyondtheradiusofthepotentialfallingrangeoftheupperflooroperation,andshallbeprovidedwithsafetyprotectingThepopenings,rubbishshafts,fluesandconduitshaftsshallbeprotectedbyprovidingwithsafetyfenceasrequiredbypracticalsituationaftermobilization.Temporaryguardrailsshallbearrangedontheedgeofthestairandatthestairwayonthetopfloor.Gauzemaskorfiltratedanti-dustrespiratormaskshallbewornindustoperation;coloredgoggleshallbeworninelectricweldingoperation;anti-skidshoesshallbewornintheoverheadoperationandthecuffandtrousersshallbefastened;andtheothertypesofworkshallstrictlyabidebythesafetyoperationspecificationofeachtypeofwork.Anyoperationtformhigherthan2mshallbeprovidedwithprotectiveguardrailsaroundthetform,andtheheightoftheguardrailshallbemorethanorequalto800mm.8、有的移動式操作平臺，與Forthetravellingoperationtformwithwheels,thejointbetweenthewheelsandthetformshallbefirmandreliable,anddistancebetweenthecolumnbottomandthegroundshallnotbemorethan8cm.950110One10literfireextinguishershallbeequippedforevery50squaremetersoneachfloor;thestorehouseandhotworkareashallbestrictlydivided;andonesuitabletypeoffireextinguishershallbeequippedforevery25squaremetersinthetemporarycarpentryroom,paintroom,woodimplementroomandthelike.乙炔瓶等物品距離不少于10m，與易燃易爆品的距離不少于30m，否則設(shè)安全措Thefirefightingequipmentshallbeeffectiveandingoodcondition,shallbestoredwithnoobjectsaround,andshallbemaintainedandmanagedbyafull-time .Thewelding-cuttingoperationsiteshallnotbelessthan10mawayfromthehazardobjectssuchasoxygenbottle,acetylenecylinderandthelike,andshallnotbelessthan30mawayfrominflbleexplosives,otherwisesafeisolationmeasuresshallbetaken.Theeffectivedistanceoftheoxygenbottleandacetylenecylindershallnotbelessthan2m,andtheusedistanceshallnotbelessthan5m;thesafetyattaentsonthewelding-cuttingdevices,suchasoxygenbottle,acetylenecylinderandthelike,shallbecompleteandeffective.ATN-Sthree-phasefive-wirezeroingprotectionsystemshallbeappliedinaprivatepowersystemwhoseneutralpointisdirectlyconnectedtotheground.Onepowersystemshalladoptthesameprotectionmethod;thatis,itisnotallowedtoperformzeroingprotectiononapartofthedevices,andperformgroundingprotectionontheotherpartofdevices.Thepowerdistributionboxandswitchboxshallbeclean;allkindsofelectricaldevicesshallbesensitive,effective,complete,undamagedandwell-insulated,havenoexposedelectrifiedparts,installedfirmly,andwiredregularly.Thewireoutletshallbearrangedonthelowerbottomsurfaceofthebox.Thefixedsuspendeddistributionboxshallbeinstalledrightlyandfirmly;theverticaldistancefromthelowerbottomtothegroundshallbemorethan1.5mandlessthan3m.Thetravellingverticaldistributionboxshallbeinstalledonafirmbracket;theverticaldistancefromthelowerbottomtothegroundshallbemorethan0.6mandlessthan1.5m.380V220V兩種電壓。保護(hù)地線或保護(hù)零線應(yīng)通過端子板連接，漏電保護(hù)器應(yīng)Thepowerandlightingcircuitsshallbearrangedseparay;aleakageprotectorhavingareasonableratingleakageactionpowershallbeselectedtodividethedevicesintodifferentgroupsforcooperation;eachdevicewillbeprovidedwithoneprivateswitch;theleakageswitchesmatchingwiththepowerusedevicesshallbeselected.Itisstrictlyforbiddentoarrange380Vand220Vvoltagesinthesameswitchboxwithfour-corepowerwires.Theprotectivegroundwireortheprotectivezerowireshallbeconnectedthroughaterminalstrip;theleakageprotectorshallbearrangedonthenegativeloadsideofthepowerisolationswitch;thefusewireshallbematchedwiththepracticalloadofthepowerusedevice,andisstrictlyforbiddentoberecednonspecificfusewiressuchassteelwireandthelike;anditisstrictlyforbiddentorecealargefusewirewithmultiplestrandsoffusewires.Alllightingcircuitsonsiteshalladoptthesoftrubbersheathedwireswithaleakageprotector;thelightingwiresarenotallowedtobedraggedeverywhereonthegroundorboundonscaffoldorotherfacilitiesbracket.Protectivegroundingorzeroingmeasuresmustbetakenforthemetalcasingandmetalbracketofthelightingfixtures.維修記錄和交記錄Thetemporarypoweruseworkcheckandacceptancerecord,theground leakageswitchtestandregularmaintenancerecord,theelectricianoperationandmaintenancerecord,andtheworkshiftrecordshallbewell-storedforinspectionatanytime.20mm，且裂縫末端沖止裂孔，傳動部位有可靠防護(hù)罩或檔板。Aprotectivecovershallbearrangedabovethesawbladeofacarpentrycircularsawingmachine;thesawbladeshallbeflat,andshallinstalledconcentricallywiththeaxis;thesawtoothshallbesharp;thecontinuousmissingteethshallnotbemorethanfour;thecracklengthshallnotbemore20mm;acrackarrestopeningshallbeperforatedattheendofthecrack;areliableprotectivecoverorbaffleteshallbearrangedatthedrivingposition.Thecircularsawingmachineusesaunidirectionalinchingswitch,itisstrictlyforbiddentousethetumblerswitch,andshallhaveleakageprotection.Themachineframeshallhavegrounding(zeroing)protection.5m，二次側(cè)線使用線鼻子。配線不亂拉亂Thecasingoftheelectricweldershallbecompleteandundamaged,andhaverain-proof,moisture-proofandsunshine-proofmeasures;theprotectivecoveroftheprimary/secondaryside(power,spigot)bindingpostshallbesafe;theprimarysidewireusestherubbercablewhichisnotlongerthan5m;andthesecondarysidewireusesanosewire.Thewiresshallbearrangedingoodorder;theweldingtongsandwelderhandleshallbeconnectedfirmly;thewelderhandlershallbewell-insulated;theoperatorsshallworkwitheffective.Variousgasbottlesshallhaveobviouscolorcodesandshockproofcircles;thegasbottlesshallhavecompleteandeffectivesafetyprotectiondevicessuchasanti-backfiredevice,pressureredactor,protectivecapandthelike;theleatherhoseshallbefastenedwithagripholderwithoutleakinggas.Theprotectivecovers/casingsofthehand-held(travelling)electrictoolsshallbecompleteandundamaged.Thecasingoftheimplementshallhavegoodgrounding(zeroing)protection.Wheninuse,aqualifiedleakageprotectorshallbeequipped.Therubbercableshallbesplice.Thesitecivilizedmanagementstandardshallbestrictlyexecuted;eachkindofmaterialshallbestockpiledseparaylayerbylayeringoodorder.Tworubbishbinsshallbearrangedoneachfloor,whereinoneisusedforcingnon-inflblewaste,andtheotherisusedforcinginflbleburnablewaste.Afull-time willbeassignedtocleantherubbishbinseveryday.Andtherubbishshallbeclearedanddeliveredintimetotherubbishyardoutsidethesiteappointedbytheowner.Afirepermitsystemshallbeadoptedfortheopenfireuseduringconstruction;afirepermitmustbeappliedtothefull-timesafetyofficerasstatedpriortofireconstruction,shallbesubmittedforapprovalandmakeacopytotheconstructionunitfortherecord.Anofficershallbespeciallyassignedforsupervisionduringprojectimplementation,andfire-proofequipmentshallbeequipped.TemporarypowerusesafetyandcontrolmeasuresonconstructionElectricianandpower 電工必須經(jīng)過按國家準(zhǔn)考核合格后，持證上崗工作；其他用電人員必須通過相關(guān)安全和技術(shù)交底，考核合格后方可上崗工作。Theelectricianmustpasstheexistingnationalstandardexamination,andworkwiththe;theotherpower nelmustpasstherelevantsafetyeducationandmusthavebeenexinedwithtechnologicaldetails,andworkafterpassingtheexamination.Theinstallation,polling,maintenanceordemolishingofthetemporarypowerusefacilitiesandwiresmustbecompletedbytheelectricianunderthesupervisionofsomeoneelse.Thegradeoftheelectricianshallbecorrespondingtotheprojectdifficultyandtechnicalcomplexity.Allpowerusenelshallmasterbasicpowersafe-useknowledgeandtheperformancethedevice,andshallalsoabidebythefollowing設(shè)備的開關(guān)箱必須分?jǐn)嚯娫撮_關(guān)，并應(yīng)關(guān)門上鎖。Beforeusingtheelectricalequipment,correspondinglaborprotectionappliancesmustbewornwellasregulated;theelectricalequipmentandtheprotectionmeasuresshallbechecked;thedefectequipmentisstrictlyforbiddentorun.Allequipmentshallbekeptandmaintained,andanyproblemfoundshallbereportedandsolvedintime.Theswitchboxstoppedusefortemporarymustcutoffthepowerisolationswitch,andshallbeclosedandlocked.Whenmovingtheelectricalequipment,theelectricianmustfirstlycutoffthepoweranddealwiththepowerproperly.2IndoorIndoorwiremustadoptinsulatedconductororPE線相連接。Indoorwiresshallbelaidbyusingporcelainvase,porcelain(stic)clip,insetinsulationgroove,throughpipeorsteelropeaccordingtothetypeofthewire.Thenon-cablewireinmoistceorembeddedundergroundmustbelaidbyusingthroughpipewhoseopeningandjointshallbesealed;whenthemetalpipeisusedforlaying,themetalpipemustconductwithequipotentialconnection,andmustbeconnectedwiththePEwire.Theindoornon-embeddedopenlaidmaintrunkcircuitshallhavetheheightnolessthan2.5mtotheground.Theoutdoorendoftheservicedropshallbefixedwithaninsulator,andthepositionpenetratingthroughthewallshallbeprotectedbyathroughpipe,andshallhavetheheightnolessthan2.5mtotheground;andrain-proofmeasuresshallbetakenaccordingtothesafeconstructionmanagementregulations.Thesectionsoftheconductorsorcablesusedasindoorwireshallbedeterminedaccordingtothecalculatedloadofthepowerusedeviceorthecircuit.However,thesectionofcopperwireshallnotbelessthan1.5mm2,andthesectionofaluminumwireshallnotbelessthan2.5mm2.用瓷夾固定導(dǎo)線時，導(dǎo)線間距不應(yīng)小于35mm，瓷夾間距不應(yīng)大于800mm；采用瓷瓶固定導(dǎo)線時，導(dǎo)線間距不應(yīng)小于Thespacebetweenthehangersofropewiresshallnotbemorethan12m.Whentheporcelainclipisusedtofixtheconductor,thespacebetweentheconductorsshallnotlessthan35mm,andthespacebetweentheporcelainclipsshallnomorethan800mm;whentheporcelainvaseisusedtofixtheconductor,thespacebetweentheconductorsshallnotlessthan100mm,andthespacebetweentheporcelainvasesshallnomorethan1.5m;andwhenthesheathinsulatedconductororcableisadopted,theycanbedirectlylaidonthesteelrope.2.5倍。Theindoorwiremusthaveshortcircuitprotectionandoverloadprotection;theshortcircuitprotectionandoverloadprotectionelectricappliances,insulatedconductorsandcablesshallbeselectedasrequiredbythespecification.Asforthethroughpipelaidinsulatedconductorcircuit,theratingcurrentofthefusantoftheshortcircuitprotectionfusethereofshallnomorethan2.5timesoftheallowablecurrent-carryingcapacityofthethroughpipeinsulatedconductorunderlongtermcontinuousload.ArrangementofdistributionboxandswitchThedistributionsystemshallbeprovidedwithadistributioncabinetoraconsumerunit,abranchdistributionbox,andaswitchboxtoperformthreestagepowerdistribution.配電系統(tǒng)宜使三相負(fù)荷平衡。220V380V220／380V三相四30A220／380V三相四線制供電?？偱潆娤湟訲hedistributionsystemshallbalancetheloadsofthethreephases.The220Vor380Vsinglephasepowerusedevicesshallbeconnectedtothe220/380Vthree-phasefour-wiresystem;the220/380Vthree-phasefour-wiresystemshallbeusedtosupplypowerwhenthecurrentofthesinglephaselightingcircuitismorethan30A.Apluralityofbranchdistributionboxesmaybearrangedundertheconsumerunit;andapluralityofswitchboxesmaybearrangedunderthebranchdistributionbox.配電箱與開關(guān)箱的距離不得超過30m，開關(guān)箱與其控制的固定式用電設(shè)備的水平距離不宜Theconsumerunitshallbearrangedintheareanearthepower;thebranchdistributionboxesshallbearrangedintheareawherethepowerusedevicesorloadsarerelativelyconcentrated;thedistancebetweenthebranchdistributionboxandtheswitchboxshallnotexceed30m;thehorizontaldistancebetweentheswitchboxandthefixedpowerusedevicecontrolledtherebyshallnotexceed3m.Eachpowerusedevicemusthaveaprivateswitchbox.Itisstrictlyforbiddentouseoneswitchboxtodirectlycontroltwoormorethantwopowerusedevices(includingtheThepowerdistributionboxandthelightingdistributionboxshallbearrangedseparay.Whentheyareintegratedintoonedistributionbox,thepowercircuitandthelightingcircuitshallbeseparated;thepowerswitchboxandthelightingswitchboxmustbearrangedseparay.Thedistributionboxandtheswitchboxshallbeinstalledatdry,ventilatedandtemperatureces,andarenotallowedtobeinstalledintheharmfulmediassuchasgas,fume,moisturewhichhaveaseveredamageeffect,orintheceseasilytobeimpactedbyforeignsolids,havingviolentoscillatorymotion,easytobespatteredbyliquidorroastedbyaheatsource.Otherwise,thedistributionboxandtheswitchboxshallbeclearedorprotected.Thespaceandpassagearoundthedistributionboxandtheswitchboxshallbigenoughfortwopeopletoworkatthesametime;anyobjectshinderingoperationandmaintenancearenotallowedtobestockpiledinthepassage;andthereshouldbenoshrubsandweeds.Thedistributionboxandtheswitchboxshallbemadefromcold-rolledsteeltesorflameretardantinsulatingmaterials;thethicknessofthesteelteshallbe1.2-2.0mm,whereinthicknessoftheboxbodysteelteoftheswitchboxshallnolessthan1.2mm;thethicknessoftheboxbodysteelteofthedistributionboxshallnolessthan1.5mm;andanticorrosiontreatmentshallbeconductedonthesurfacesoftheboxbodyaccordingtothesafeconstructionmanagementregulations.0.8-1.6m。Thedistributionboxandtheswitchboxshallbeinstalledrightlyandfirmly.Theverticaldistancebetweenthegroundandthecentralpointsofthefixeddistributionboxandswitchboxshallbe1.4-1.6m;thetravellingdistributionboxandswitchboxshallbeinstalledonafirmandstablebracket,andtheverticaldistancebetweenthegroundandthecentralpointthereofshallbe配電箱、開關(guān)箱內(nèi)的電器(含插座)Theelectricappliances(includingsocket)inthedistributionboxandtheswitchboxshallbeinstalledonametalornon-woodflameretardantinsulatingelectricappliancemountingte,thentheentiretymaybefastenedintheboxbodiesofthedistributionboxandtheswitchbox.Themetalelectricalappliancemountingteshallbeelectricallyconnectedwiththemetalboxbody.Theelectricappliances(includingsocket)inthedistributionboxandtheswitchboxshallfastenedontheelectricalappliancemountingteonthestatedpositionswithoutslantingor配電箱的電器安裝板上必須分設(shè)NPE線端子板。N線端子板必須與金屬電器安裝板絕緣；PIE線端子板必須與金屬電器安裝板做電氣連接。TheelectricalappliancemountingteinthedistributionboxmustbeprovidedwithanNwireterminalboardandaPEwireterminalboard.TheNwireterminalboardmustbeinsulatedfromthemetalelectricalappliancemountingte;andthePIEwireterminalboardmustbeelectricallyconnectedwiththemetalelectricalappliancemountingte.N線必須通過N線端子板連接；PEPENwireofinlet/outletwiresmustbeconnectedwithNwireterminals.PEwiremustbeconnectedwithPEwireterminalboard.Coppercoreinsulatedwiremustbeusedforconnectionwithinpowerdistributionboxandswitchbox.Coloridentificationmustbemadeunderregulationstowireswhichshallbeproperlyarranged.Weldingratherthanboltconnectionshallbeadoptedforbranchjointofwires.Insulationwrapshallbemade,allowingnoexposurelivePEPEMetalhousingofpowerdistribution/switchboxes,metalmountingteforelectricalequipment,aswellasmetalbaseorhousingofelectricalequipmentwhicharenormallynon-energizedmustbeconnectedwithPEwiresviaPEwireterminalboard.Electricalconnectionviawovensoftcopperwiresshallalsobemadebetweenmetalboxesandtheirdoors.安裝尺寸可按照下表確定。配電箱、開關(guān)箱內(nèi)電器安裝尺寸選擇表間距名稱最小凈距(mm)并列電器(含單極熔斷器)30電器進(jìn)、出線瓷管(塑膠管)孔與電器邊沿間15A，3020-30A，5060A及以上，80，上、下排電器進(jìn)出線瓷管(塑膠管)25電器進(jìn)、出線瓷管(塑膠管)板邊40，電器至板邊40。Dimensionsofpowerdistribution/switchboxesshallmatchwithtyandsizeselectricaldeviceinthem.Takethefollowingreferenceformountingdimensionofelectricaldeviceonmountingtewithintheboxes:TableofMountingDimensionsforElectricalDevicesinPowerDistribution/SwitchBoxesMinimumMinimumNameofSpacebetweenparalleldevices(incl.monopoleSpacefromporcelain/stictubeopeningsofinlet/outletwirestoedgeofelectricaldevices20-Spacebetweenporcelain/stictubeopeningsofinlet/outletofupperandlowerrowofelectricalSpacefromporcelain/stictubeopeningsofinlet/outletwireselectricaldevicestoteSpacefromelectricaldevicestoteWireinletandoutletportsshallbesetonthebottomsideofpowerdistribution/switchboxeswithfasteningwireclamps.Inletandoutletwiresshallwearinsulationsleevesandbundledonboxtopreventdirectcontact.Inletandoutletwiresofmovabledistribution/switchboxesshalluserubbersleeveinsulatedcablewithoutjoints.ShapestructureoftheboxesshallbewateranddustSelectiontoElectricalAlwayschoosereliableandcompleteneverdamagedorimproperdevicestobeinstalledindistribution/switchbox.Electricaldevicesinmainpowerdistributionboxshallbesetwithpowerisolation,normalconnectionandbreakcircuit,aswellasshort-circuit,overload,andleakageprotectionfunctions.Thedevicesshallbesetinfollowingprinciples:當(dāng)總路設(shè)置總漏電保護(hù)器時，還應(yīng)裝設(shè)總開關(guān)、分路開關(guān)以及總斷路器、分Whenthemaincircuitissetwithleakageprotector,itshallalsobesetwithmaindisconnector,branchdisconnector,maincircuitbreaker,branchcircuitbreaker,ormainfuseandbranchfuse.Maincircuitbreakerorfuseisnotamustwhenthemainleakageprotectorhasintegratedshort-circuit,overload,andleakageprotection當(dāng)各分路設(shè)置分路漏電保護(hù)器時，還應(yīng)裝設(shè)總開關(guān)、分路開關(guān)以及總斷路器、Whenthebranchcircuitsaresetwithbranchleakageprotectors,thereshouldalsobemaindiconnector,branchdisconnector,maincircuitbreaker,branchcircuitbreaker,ormainfuse,andbranchfuse.Branchcircuitbreakerorfuseisnotamustwhenthemainleakageprotectorhasintegratedshort-circuit,overload,andleakageprotectionfunctions.Disconnectorshallbesetoninletendofpowersupplywithvisiblebreakingpointswhenbreaking,whichcanbreakallthepolesofpowersupplyatthesametime.Ifcircuitbreakerwithvisiblebreakingpointsisadopted,additionaldisconnectorisnotnecessary.Selectfusewithreliablearc-distinguishbreakingfunction.Ratedvalueandactionsettingvalueofmainswitchingdeviceshallmatchthevaluesofbranchswitchingdevices.Mainpowerdistributionboxshallbeequippedwithvoltmeter,mainamperemeter,watthourmeter,andothernecessaryinstruments.Installationtospecialelectricalenergyinstrumentshallcomplywithrequirementsoflocalpoweradministrations.Thesecon