Namhlanje, i-GL ithetha ngemilinganiselo eqhelekileyo yendlela yokuphucula uzinzo lwe-thermal ye-OPGW cable:
1: Indlela yokuvala umgca
Ixabiso lekhebula le-OPGW liphezulu kakhulu, kwaye akukho qoqosho ukunyusa nje i-cross-section ukuthwala i-short-circuit current.Ngokuqhelekileyo isetyenziselwa ukuseta ucingo lokukhusela umbane oluhambelana nentambo ye-OPGW ukunciphisa intambo ye-OPGW yangoku.
Ukukhethwa komgca we-shunt kufuneka kuhlangane:
a.Kukho i-impedance ephantsi ngokwaneleyo yokwenza i-OPGW yangoku yehla ngaphantsi kwexabiso elivumelekileyo;
b.Iyakwazi ukudlula umsinga omkhulu ngokwaneleyo;
c.Ngelixa uhlangabezana neemfuno zokhuseleko lombane, kufuneka kubekho ukhuseleko lwamandla olwaneleyo.
Kufuneka kwakhona kuqatshelwe ukuba nangona ukuchasana komgca we-shunt kungancitshiswa kakhulu, ukusabela kwayo kwe-inductive kuyancipha ngokukhawuleza, ngoko ke indima yomgca we-shunt inomda othile;umgca we-shunt unokusekelwe kwimeko ye-short-circuit yangoku ejikeleze umgca Ukukhetha kweCandelo, kodwa ekutshintsheni umgca we-shunt ukuguqula icandelo lomzekelo, ukuba amacandelo amabini anomahluko omkhulu, ngoku ngakumbi kuya kuhanjiswa kwi-OPGW. intambo, eya kubangela ukuba intambo ye-OPGW inyuke ngokukhawuleza.Ngoko ke, i-cross-section of the shunt line kufuneka ihlolwe ngokuphindaphindiweyo.
2: Ukusetyenziswa okufanayo kweentambo ze-OPGW zenkcazo ezimbini
Kwimizila emide, ngenxa yowona mbane mkhulu we-short-circuit current kwi-outlet section ye-substation, kufuneka kusetyenziswe intambo enkulu ye-OPGW ye-cross-section;umgca kude nesikhululo usebenzisa intambo encinci ye-OPGW yecandelo elinqamlezayo.Iintlobo ezimbini zemigca ye-shunt kufuneka ziqwalaselwe xa ukhetha iintambo ezimbini ze-OPGW.
3: Indlela yokuguqula ngaphantsi komhlaba
Qhagamshela isixhobo sokumisa i-terminal tower kunye negridi yokumisa i-substation kunye neentsimbi ezininzi ezijikelezayo ezinamacandelwana afanelekileyo, ukwenzela ukuba inxalenye ye-short-circuit current ingene kwi-substation ephantsi komhlaba, enokunciphisa kakhulu i-current ye-OPGW cable. .
I-4: Indlela ehambelanayo yemigca yokukhusela imibane emininzi
Qhagamshela izixhobo zokumisa iinqaba ezininzi ze-terminal ukwenza i-short-circuit current current kwi-substation ecaleni kwe-multi-loop lightning line line, ukwenzela ukuba i-single-circuit current incitshiswe kakhulu.Ukuba ukuzinza kwe-thermal ye-cable ye-OPGW yeklasi yesibini ayithembekanga, isixhobo sokumisa isiseko sesiseko sesibini sinokudibaniswa, njalo njalo.Kodwa kufuneka kuqatshelwe ukuba ukhuseleko lwe-relay zero kufuneka luthathelwe ingqalelo xa udibanisa iinqaba ezininzi.
