Yuav ua li cas tswj cov hluav taws xob corrosion ntawm ADSS optical cable?
Raws li peb paub, tag nrho cov hluav taws xob corrosion faults tshwm sim nyob rau hauv lub active length cheeb tsam, yog li qhov ntau yuav tsum tau tswj yog tseem concentrated nyob rau hauv lub active length cheeb tsam.
1. static tswj:
Nyob rau hauv cov xwm txheej zoo li qub, rau AT sheathed ADSS optical cable ua haujlwm hauv 220KV system, spatial peev xwm ntawm nws dai taw tes yuav tsum tswj tsis pub tshaj 20KV (ob-circuit thiab multi-circuit co-thav duab kab yuav tsum qis dua);ua hauj lwm nyob rau hauv 110KV thiab hauv qab systems Rau PE sheathed ADSS optical cable, spatial peev xwm ntawm dai taw tes yuav tsum tau tswj kom tsawg tshaj li 8KV.Lub spatial tej zaum tsim ntawm lub static hanging point yuav tsum coj mus rau hauv tus account:
(1) System voltage thiab theem kev npaj (dual loops thiab ntau loops yog ib qho tseem ceeb heev).
(2) Cov duab ntawm tus ncej thiab ntauwd (nrog rau lub taub hau ntauwd thiab qhov siab nominal).
(3) Qhov ntev ntawm txoj hlua insulator (qhov ntev nws txawv raws li cov pa phem).
(4) Txoj kab uas hla ntawm tus neeg xyuas pib / av xaim thiab qhov sib cais ntawm tus neeg xyuas pib.
(5) Kev nyab xeeb nyob deb ntawm cov hlau thiab hauv av thiab cov khoom hla.
(6) Tension / sag / ncua kev tswj (nyob rau hauv tsis muaj cua, tsis muaj dej khov, thiab txhua xyoo nruab nrab kub, lub load tsis ntau tshaj li ES ntawm optical cable, uas yog 25% RTS; nyob rau hauv tsim huab cua puag, lub load tsis yog ntau tshaj qhov kho qhov muag cable MAT yog 40% RTS).
(7) Jumpers (nruj ncej) thiab lub cev hauv av (xws li cov cement ncej cables) yuav tsum tau kawm thiab lawv cov kev cuam tshuam yuav tsum raug txiav txim siab.
2.dynamic tswj:
Nyob rau hauv dynamic tej yam kev mob, qhov chaw muaj peev xwm ntawm AT sheathed ADSS optical cable ua hauj lwm nyob rau hauv ib tug 220KV system yuav tsum tau tswj kom tsis txhob ntau tshaj 25KV;PE sheathed ADSS optical cable ua hauj lwm nyob rau hauv ib tug system ntawm 110KV thiab hauv qab no, qhov chaw muaj peev xwm ntawm lub hanging point yuav tsum tau tswj kom tsis txhob ntau tshaj 12KV.Dynamic tej yam kev mob yuav tsum tsawg kawg yog coj mus rau hauv tus account:
(1) Lub kaw lus hluav taws xob yog qhov nominal voltage, thiab nyob rau hauv qee qhov xwm txheej yuav muaj qhov yuam kev ntawm +/- (10 ~ 15)%, thiab qhov kev ua siab ntev yuav tsum tau ua;
(2) Cov hlua ntawm fittings (tsuas yog cov hlua dai) thiab cua viav vias ntawm cov khoom siv kho qhov muag;
(3) Muaj peev xwm ntawm thawj theem hloov pauv;
(4) Muaj peev xwm ua haujlwm ntawm ib lub voj voog ntawm ob lub voj voog;
(5) Qhov xwm txheej tiag tiag ntawm kev hloov pauv huab cua hauv cheeb tsam;
(6) Tej zaum yuav muaj cov kab crossover tshiab thiab khoom siv;
(7) Cov xwm txheej ntawm kev tsim kho hauv nroog thiab cov phiaj xwm kev loj hlob raws kab (nws tuaj yeem tsa hauv av);
(8) Lwm yam xwm txheej uas yuav cuam tshuam rau qhov kho qhov muag cable.
Nco ntsoov tias cov no yuav tsum tau them nyiaj rau hauv kev tsim kho ntawm ADSS optical cable thaiv.
(1) Cov hluav taws xob corrosion ntawm ADSS optical cable sheath nyob rau hauv qhov nro thaum lub sij hawm ua haujlwm yog tshwm sim los ntawm cov av xau tam sim no ntawm kwv yees li 0.5-5mA thiab qhuav band arc tshwm sim los ntawm qhov chaw muaj peev xwm (los yog hluav taws xob teb lub zog) los ntawm kev sib txuas ua ke.Yog tias kev ntsuas raug coj los tswj cov av xau tam sim no qis dua 0.3mA thiab tsis tsim cov arc txuas ntxiv, hluav taws xob corrosion ntawm lub sheath yuav tsis tshwm sim hauv txoj cai.Txoj kev muaj tiag thiab zoo tshaj plaws yog tseem tswj qhov nro thiab spatial muaj peev xwm ntawm qhov kho qhov muag cable.
(2) Qhov chaw zoo li qub tsim ntawm AT lossis PE sheathed ADSS optical cable yuav tsum tsis pub ntau tshaj 20KV lossis 8KV, raws li, thiab yuav tsum tsis pub tshaj 25KV lossis 12KV nyob rau hauv cov xwm txheej tsis zoo.Lub fiber optic cable tuaj yeem ua haujlwm zoo.
(3) Qhov chaw muaj peev xwm zoo li qub yog 20KV (feem ntau 220KV system) lossis 8KV (feem ntau 110KV system).Cov khoom siv tiv thaiv kev vibration nplawm sib cais hauv qhov system tsis tsawg dua (1 ~ 3)m lossis 0.5m, ntsig txog, txhawm rau txhim kho ADSS Ib qho kev ntsuas zoo rau hluav taws xob corrosion ntawm optical cables.Nyob rau tib lub sijhawm, kev puas tsuaj ntawm ADSS optical cable thiab lwm yam kev tiv thaiv kev vibration (xws li siv tau los tiv thaiv kev vibration rauj) yuav tsum tau kawm.
(4) Lub installation txoj hauj lwm ntawm qhov kho qhov muag cable (feem ntau hu ua qhov taw tes dai) tsis tuaj yeem txiav txim siab empirically raws li qhov system voltage theem thiab / lossis qhov kev ncua deb ntawm theem tus neeg xyuas pib.Qhov chaw muaj peev xwm ntawm qhov dai taw tes yuav tsum raug xam raws li cov xwm txheej tshwj xeeb ntawm txhua hom ntauwd.
(5) Txawm hais tias muaj kev cuam tshuam tsis zoo ntawm ADSS optical cables nyob rau xyoo tas los no, ntau qhov kev coj ua tau ua pov thawj tias ADSS optical cables tuaj yeem txuas ntxiv mus ntxiv thiab siv rau hauv 110KV systems;ADSS optical cables siv nyob rau hauv 220KV systems coj tag nrho cov account ntawm static thiab dynamic ua hauj lwm tej yam kev mob.Tom qab ntawd, koj tuaj yeem txuas ntxiv txhawb nqa daim ntawv thov.
(6) Nyob rau ntawm qhov chaw ntawm kev ua kom zoo ntawm ADSS optical cable, standardize engineering tsim, kev tsim kho thiab kev khiav hauj lwm tej yam kev mob, thiab hluav taws xob corrosion ntawm ADSS optical cable yuav tswj tau.Nws raug nquahu kom tsim thiab ua raws cov qauv / txheej txheem kom sai li sai tau.
