Intambo yamandla egqunywe nge-polyethylene eqhagamshelweyo isetyenziswa kakhulu kwinkqubo yamandla ngenxa yeempawu zayo ezilungileyo zobushushu nezoomatshini, iimpawu zombane ezigqwesileyo kunye nokumelana nokugqwala kweekhemikhali. Ikwanazo neenzuzo zesakhiwo esilula, ubunzima obulula, ukufakwa kwayo akuthintelwanga kukuhla, kwaye isetyenziswa kakhulu kwiigridi zamandla zasezidolophini, kwimigodi, kwizityalo zeekhemikhali nakwezinye iindawo. Ukusetyenziswa kwe-insulation yentamboi-polyethylene edibeneyo, eguqulwa ngokweekhemikhali ukusuka kwi-polyethylene yemolekyuli ethe ngqo ibe yisakhiwo senethiwekhi esinemilinganiselo emithathu, ngaloo ndlela iphucula kakhulu iipropati zoomatshini ze-polyethylene ngelixa igcina iipropati zayo zombane ezibalaseleyo. Oku kulandelayo kuchaza umahluko kunye neenzuzo phakathi kweentambo ezifakwe i-polyethylene ezinxibelelanisiweyo kunye neentambo eziqhelekileyo ezifakwe i-insulation kwiinkalo ezininzi.
1. Umahluko kwizinto eziphathekayo
(1) Ukumelana nobushushu
Umlinganiselo wobushushu weentambo eziqhelekileyo ezigqunyiweyo udla ngokuba yi-70°C, ngelixa umlinganiselo wobushushu weentambo ezigqunyiweyo ze-polyethylene ezinxibeleleneyo unokufikelela kwi-90°C nangaphezulu, nto leyo ephucula kakhulu ukumelana nobushushu beentambo, nto leyo eyenza ukuba zifaneleke kwiindawo zokusebenza ezinzima ngakumbi.
(2) Umthamo wokuthwala
Phantsi kwendawo efanayo yomqhubi, amandla okuthwala angoku entambo egqunyiweyo ye-XLPE aphezulu kakhulu kunalawo entambo eqhelekileyo egqunyiweyo, enokwanelisa inkqubo yonikezelo lwamandla eneemfuno ezinkulu zangoku.
(3) Ububanzi besicelo
Iintambo ezigqunyiweyo eziqhelekileyo ziya kukhupha umsi we-HCl onetyhefu xa zitshisiwe, kwaye azinakusetyenziswa kwiimeko ezifuna ukuthintela umlilo okusingqongileyo kunye nobutyhefu obuphantsi. Intambo egqunyiweyo ye-polyethylene enxibeleleneyo ayinayo i-halogen, inobuhlobo nokusingqongileyo, ifanelekile kwiinethiwekhi zokusasaza, ukufakelwa kwemizi-mveliso kunye nezinye iimeko ezifuna umbane omkhulu, ngakumbi i-AC 50Hz, i-voltage elinganisiweyo eyi-6kV ~ 35kV imigca yokuhambisa kunye nokuhambisa emiselweyo.
(4) Uzinzo lweekhemikhali
I-polyethylene edibeneyo inokumelana kakuhle neekhemikhali kwaye inokugcina ukusebenza kakuhle kwindawo engqongileyo yee-asidi, ii-alkalis kunye nezinye iikhemikhali, nto leyo eyenza ukuba ifaneleke ngakumbi ukusetyenziswa kwiimeko ezikhethekileyo ezifana nezityalo zeekhemikhali kunye neendawo zasemanzini.
2. Iingenelo zentambo ye-polyethylene edityaniswe nge-cross-linked insulated cable
(1) Ukumelana nobushushu
I-polyethylene edibeneyo iguqulwa ngeendlela zeekhemikhali okanye zendalo ukuguqula isakhiwo se-molecular esithe ngqo sibe sisakhiwo senethiwekhi esinemilinganiselo emithathu, nto leyo ephucula kakhulu ukumelana nobushushu bezinto. Xa kuthelekiswa ne-polyethylene eqhelekileyo kunye ne-polyvinyl chloride insulation, iintambo ze-polyethylene ezidibeneyo zizinzile ngakumbi kwiindawo ezinobushushu obuphezulu.
(2) Ubushushu obuphezulu bokusebenza
Ubushushu bokusebenza obulinganisiweyo bomqhubi bunokufikelela kwi-90°C, obuphezulu kunobo beentambo zePVC zemveli okanye zepolyethylene ezigqunywe nge-insulation, ngaloo ndlela buphucula kakhulu amandla okuthwala intambo ngoku kunye nokhuseleko lokusebenza ixesha elide.
(3) Iipropati zoomatshini eziphezulu
Intambo egqunywe nge-polyethylene edityanisiweyo iseneempawu ezilungileyo ze-thermo-mechanical kubushushu obuphezulu, ukusebenza ngcono kokuguga kobushushu, kwaye inokugcina uzinzo loomatshini kwindawo enobushushu obuphezulu ixesha elide.
(4) Ubunzima obulula, ukufakwa okulula
Ubunzima bentambo egqunywe nge-polyethylene edityanisiweyo bulula kunobo beentambo eziqhelekileyo, kwaye ukufakwa kwayo akuthintelwanga kukuhla. Ifanelekile ngokukodwa kwiindawo zokwakha ezintsonkothileyo kunye neemeko zokufakelwa kweentambo ezinkulu.
(5) Ukusebenza ngcono kokusingqongileyo:
Intambo egqunywe nge-polyethylene ayinayo i-halogen, ayikhuphi iigesi ezinobuthi ngexesha lokutsha, ayinampembelelo ingako kwindalo esingqongileyo, kwaye ifanelekile ngakumbi kwiindawo ezineemfuno ezingqongqo zokukhusela indalo.
3. Iingenelo zokufakelwa nokugcinwa
(1) Ukuqina okuphezulu
Intambo ye-polyethylene egqunywe nge-crosslinked inamandla aphezulu okulwa nokwaluphala, ifanelekile ukugqunywa ixesha elide okanye ukuvezwa kwindawo engaphandle, nto leyo enciphisa ukuphindaphinda kokutshintshwa kwentambo.
(2) Ukuthembeka okuqinileyo kokugquma
Iimpawu ezibalaseleyo zokwambathisa i-polyethylene edityanisiweyo, enokumelana nombane ophezulu kunye namandla okuqhekeka, zinciphisa umngcipheko wokungaphumeleli kokwambathisa i-insulation kwizicelo zombane ophezulu.
(3) Iindleko zokulungisa eziphantsi
Ngenxa yokumelana nokugqwala kunye nokumelana nokuguga kweentambo ezifakwe i-polyethylene ezifakwe i-insulated, ubomi bazo benkonzo bude, nto leyo enciphisa iindleko zemihla ngemihla zokugcinwa kunye nokutshintshwa.
4. Iingenelo zenkxaso entsha yobugcisa
Kwiminyaka yakutshanje, ngokuphuculwa kwetekhnoloji yezinto ze-polyethylene ezidityanisiweyo, ukusebenza kwayo kokugquma kunye neempawu zayo zomzimba kuye kwaphuculwa ngakumbi, ezinje:
I-retardant yomlilo ephuculweyo, ingahlangabezana neemfuno zomlilo zeendawo ezikhethekileyo (ezifana nesitimela esingaphantsi komhlaba, isikhululo samandla);
Ukumelana nokubanda okuphucukileyo, okusazinzile kwindawo ebanda kakhulu;
Ngenkqubo entsha yokudibanisa iintambo, inkqubo yokwenziwa kweentambo isebenza kakuhle kwaye inobuhlobo nokusingqongileyo.
Ngenxa yokusebenza kwayo okugqwesileyo, iintambo ze-polyethylene ezidityanisiweyo ezigqunywe nge-cross-linked zithatha indawo ebalulekileyo kwicandelo lokuhambisa nokusasaza umbane, zibonelela ngokhetho olukhuselekileyo, oluthembekileyo nolunobuhlobo nokusingqongileyo kwiigridi zamandla zasezidolophini zanamhlanje kunye nophuhliso lwemizi-mveliso.
Ixesha leposi: Novemba-27-2024