Namhlanje, i-GL ithetha ngendlela yokuphucula imilinganiselo ye-OPGW yozinzo lwe-thermal cable:
1. Indlela yokuvala umgca
Ixabiso leIntambo ye-OPGWiphezulu kakhulu, kwaye ayikonga nje ukonyusa icandelo elinqamlezayo ukuthwala umsinga omfutshane.Ngokuqhelekileyo isetyenziselwa ukuseta ucingo lokukhusela umbane oluhambelana nentambo ye-OPGW optical yokunciphisa i-current ye-OPGW optical cable.
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 ngokunxuseneyo kweentambo ze-OPGW zeenkcazo ezimbini
Kwimizila emide, ngenxa yeyona ndlela inkulu ye-short-circuit current kwi-outlet ye-substation, kufuneka kusetyenziswe i-optical cable ye-OPGW enkulu;umgca kude nesikhululo usebenzisa intambo encinci ye-OPGW ye-optical cross-section.Iintlobo ezimbini zemigca ye-shunt kufuneka ziqwalaselwe xa ukhetha iintambo ezimbini ze-OPGW optical.
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-OPGW optical yangoku. intambo.
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.