Izindaba Zenkampani
Ukuhlolwa kokusebenza kwezinto zejakhethi yekhebula
Njengamandla abalulekile kanye nethuluzi lokudlulisa isignali, ikhebula lisetshenziswa kabanzi ezindaweni ezihlukahlukene ezimbi kakhulu. Kuzinhlelo zokusebenza ezihlukahlukene, izinto ze-cable sheath zidlala indima ebalulekile ekuvikeleni izingxenye zangaphakathi zezintambo ezicini zemvelo ezifana nomswakama, ukushisa, nokucindezeleka kwemishini.
Kuleli phepha, izinto eziyisishiyagalombili ezivame ukusetshenziswa zokushelela ikhebula - i-crosslinked polyethylene (XLPE), i-polytetrafluoroethylene (PTFE), i-fluorinated ethylene propylene (FEP), i-perfluoroalkoxy resin (PFA), i-polyurethane (PUR), i-polyethylene (PE), i-thermoplastic elastomer (TPE) kanye ne-polyvinyl chloride (PVC) ithathwa njengezibonelo. Ngayinye inezici ezihlukile zokusebenza, inhloso iwukuhlola ngokuphelele ukusebenza kwalezi zinto ngokuhlola okungokoqobo nokuhlaziya idatha, nokunikeza isiqondiso esisebenzayo sokuklama nokusebenzisa ibhantshi lekhebula.
Izinto Zejakhethi:
Ucwaningo lokusebenza kwezinto ezibonakalayo nokuhlola okungokoqobo
1. Ukuhlolwa kokumelana nezinga lokushisa
Senze izivivinyo zokumelana nezinga lokushisa ezintweni eziyisishiyagalombili, okuhlanganisa ukuguga okushisayo kanye nokuhlolwa komthelela wezinga lokushisa eliphansi.
Ukuhlaziywa kwedatha:
| Okubalulekile | Ububanzi bezinga lokushisa lokuguga okushisayo (℃) | Izinga lokushisa eliphansi lethonya (℃) |
I-XLPE | - 40-90 | -60 |
I-PTFE | -200 ~ 260 | -200 |
FEP | -80-200 | -100 |
PFA | -200 ~ 250 | -150 |
NOMA KUNJALO | - 40-80 | -40 |
VULIWE | - 60-80 | -60 |
I-TPE | - 60 ~ 100 | -40 |
I-PVC | -10-80 | -10 |
Njengoba kungabonwa kudatha, i-PTFE ne-PFA inebanga lokushisa elibanzi kakhulu futhi ifaneleka ikakhulukazi izindawo zokushisa eziphakeme neziphansi.
2. Ukuhlolwa kokumelana namanzi
Sihlole impahla ukumelana namanzi, okuhlanganisa izivivinyo zokucwiliswa emanzini kanye nokuhlolwa kokudluliswa komhwamuko wamanzi.
Ukuhlaziywa kwedatha:
Okubalulekile | Izinga lokumuncwa kwamanzi (%) | Ukudluliswa komhwamuko wamanzi (g/m²·24h) |
I-XLPE | 0.2 | 0.1 |
I-PTFE | 0.1 | 0.05 |
FEP | 0.1 | 0.08 |
PFA | 0.1 | 0.06 |
NOMA KUNJALO | 0.3 | 0.15 |
VULIWE | 0.4 | 0.2 |
I-TPE | 0.5 | 0.25 |
I-PVC | 0.8 | 0.3 |
Kusukela kudatha, kungabonakala ukuthi i-PTFE, i-FEP, ne-PFA inokumuncwa okuphansi kwamanzi kanye nokusebenza okuhle kakhulu kokuvimbela umhwamuko wamanzi, okubonisa ukumelana kwamanzi okuhle.
3. Ukuhlolwa kokumelana nesikhunta
Senze izivivinyo zesiko lesikhunta zesikhathi eside ukuze sibheke futhi sirekhode ukukhula kwesikhunta ebusweni bento ngayinye.
Ukuhlaziywa kwedatha:
| Okubalulekile | Isimo sokukhula kwesikhunta |
I-XLPE | Ukukhula kancane |
I-PTFE | Akukho ukukhula |
FEP | Akukho ukukhula |
PFA | Akukho ukukhula |
NOMA KUNJALO | Ukukhula kancane |
VULIWE | Ukukhula kancane |
I-TPE | Ukukhula okumaphakathi |
I-PVC | Ukukhula okuphawulekayo |
Kusukela kudatha, kungabonakala ukuthi i-PTFE, i-FEP, ne-PFA inokusebenza okuhle kakhulu kwesikhunta ezindaweni ezinomswakama.
4. Ukuhlolwa kokusebenza kukagesi
Izakhiwo zikagesi zezinto ezibonakalayo, njengokumelana nokufakwa kwe-insulation namandla e-dielectric, zahlolwa.
Ukuhlaziywa kwedatha:
Okubalulekile | Ukumelana ne-insulation (Ω·m) | Amandla e-Dielectric (kV/mm) |
I-XLPE | 10^14 | 30 |
I-PTFE | 10^18 | 60 |
FEP | 10^16 | 40 |
| PFA | 10^17 | 50 |
NOMA KUNJALO | 10^12 | 25 |
VULIWE | 10^11 | 20 |
I-TPE | 10^13 | 35 |
I-PVC | 10^10 | 15 |
Kusuka kudatha, kubonakala ukuthi i-PTFE inokumelana okuphezulu kakhulu nokufakwa kwe-dielectric, okubonisa ukusebenza kahle kukagesi. Kodwa-ke, ukusebenza kukagesi kwe-PVC kubi kakhulu.
5. Ukuhlolwa kwempahla yemishini
Izakhiwo zemishini ezifana namandla okudonsa kanye nobude ngesikhathi sekhefu zahlolwa.
Ukuhlaziywa kwedatha:
Okubalulekile | Amandla okuqina (MPa) | Ukuphakama ngesikhathi sekhefu (%) |
I-XLPE | 15-30 | 300-500 |
I-PTFE | 10-25 | 100-300 |
FEP | 15-25 | 200-400 |
PFA | 20-35 | 200-450 |
NOMA KUNJALO | 20-40 | 400-600 |
VULIWE | 10-20 | 300-500 |
I-TPE | 10-30 | 300-600 |
I-PVC | 25-45 | 100-200 |
Amakhebuli ajwayele ukugotshwa, ukusonteka, nezinye izinhlobo zokucindezeleka komshini ngesikhathi sokufakwa nokusebenza. Ukuhlola amandla aqinile, ukuguquguquka, kanye nokumelana nokuhuzuka kwezinto zejakhethi kubalulekile ekunqumeni amandla azo okumelana nezingcindezi ezinjalo ngaphandle kokubeka engcupheni ubuqotho bekhebula.Kungabonakala kudatha yokuthi i-PUR ne-TPE zisebenza kangcono ngokwamandla aqinile futhi I-elongation ngesikhathi sekhefu futhi ibe nezakhiwo ezinhle zemishini, kuyilapho i-PVC inezakhiwo ezingezinhle zemishini.
Ngokusekelwe ekuhlaziyweni kwedatha okungenhla, kunconywa ukuthi ukhethe okubalulekile kwejakhethi yekhebula ngokuhambisana nezimo ezithile zohlelo lokusebenza kanye nezidingo:
Ukumelana nezinga lokushisa: I-PTFE ne-PFA zinebanga lokushisa elibanzi kakhulu futhi zifaneleka ikakhulukazi izindawo zokushisa eziphakeme neziphansi. Lezi zinto ezimbili zilungele izinhlelo zokusebenza ezidinga amazinga okushisa aphezulu.
Ukumelana namanzi: I-PTFE, i-FEP ne-PFA inokumunca amanzi okuphansi kanye nezakhiwo ezinhle kakhulu zokuvimbela umhwamuko wamanzi, okubonisa ukumelana kwamanzi okuhle. Lezi zinto kufanele zicatshangelwe izintambo ezisetshenziswa ezindaweni ezimanzi noma ngaphansi kwamanzi.
Ukumelana nesikhunta: I-PTFE, i-FEP ne-PFA inokumelana okuhle kakhulu kwesikhunta ezindaweni ezinomswakama. Lezi zinsiza zikhethwa kumakhebuli adinga ukusetshenziswa isikhathi eside ezindaweni ezinomswakama noma ezinomkhuhlane.
Izakhiwo zikagesi: I-PTFE inezinga eliphakeme kakhulu lokumelana nokufakwa kwe-insulation namandla e-dielectric, ekhombisa izici ezinhle kakhulu zikagesi. Kuzinhlelo zokusebenza ezidinga ukusebenza kukagesi okuphezulu, njengezintambo zamandla kagesi aphezulu noma izintambo zokudlulisa isignali, i-PTFE iyinketho ekahle.
Izakhiwo zemishini: I-PUR ne-TPE zisebenza kangcono emandleni aqinile kanye nobude ngesikhathi sekhefu, futhi zinezakhiwo ezinhle zokusebenza. Ngezintambo ezidinga ukumelana nokucindezeleka okukhulu kwemishini noma ukuguqulwa, lezi zinto ezimbili zingacatshangelwa.
Sekukonke, ukuhlolwa kokusebenza kweikhebulaizinto ze-sheath zihlanganisa ukuhlola okuphelele kokumelana kwazo nezinto ezithinta imvelo, ukusebenza kukagesi, amandla emishini, njll. Ngokuhlola okuphelele, abakhiqizi nabasebenzisi bangenza izinqumo ezihlakaniphile zokukhetha impahla yesheath yekhebula evumelana kangcono nezidingo zabo zohlelo lokusebenza, ekugcineni bathuthukise ingqikithi. ukwethembeka kanye nempilo yesevisi yesistimu yekhebula.
Inkampani inikeza ukwesekwa okuqinile kwethiyori ukuze kuthuthukiswe ukuthuthukiswa kokusebenza okuphelele kanye nokuthuthukiswa okusimeme kwezinto ezisetshenziswayo zekhebula zesheath yangaphandle. Ngesikhathi esifanayo, ngokuthuthukiswa okuqhubekayo kobuchwepheshe obusha bezinto ezibonakalayo kanye nesidingo esikhulayo sohlelo lokusebenza, sizobheka phambili ezintweni ezisetshenziswayo zekhebula zangaphandle ezisebenza kahle kakhulu, sifaka ubungqabavu obusha ekuqhubekeleni phambili kwemboni yamakhebula.