Nk’umuhinga afise imyaka irenga mirongo ibiri mu bijanye n’ubuhinga bwo gukoresha umurongo w’amashanyarazi, narabonye amahinduka menshi mu bikoresho vyo gukingira. Igihe ubuhinga bwa polyethylene (XLPE) buhuriweko, nari nzi ko buzohindura umuyagankuba. Uyu musi, nzosangira agaciro nyamukuru n'ubumenyi bukora bwa .XLPE ikingira intsinga z'amashanyarazimu kubona kw’umuganga w’imbere.
I. Guhindura Ihinduka ry'ubuhinga: Ingene XLPE Ivyiyumviro vy'Imigenzo ya XLPE
Mu ntango z’imyaka ya 1990, PVC{1}} Intsinga zashizwemwo inkengera zica ziganza. Ariko mu gihe bariko baragenzura imigambi mu bumanuko bw’Ubushinwa - Uburyo bwo gutera imbere, uburebure bw’ibice vy’umubiri, nabonye amakosa akomeye: PVC yarayoroheje kandi igahungabana mu gihe kirekire - Ijambo, n’ubushobozi buhambaye bw’umuriro. Ivyo mbona vyahindutse mu gihe c'umugambi wa mbere wa XLPE- Umugambi w'imirongo y'amashanyarazi (1998, 35kV mu bisagara vyo munsi y'ubutaka):
Igitigiri c'ubushuhe: Ubushuhe nyabwo bwo gukoresha bushika ku 90℃, 40% kurusha PVC .
Gukuraho Ubushobozi burengeje urugero bugaragara: Ubushuhe bwa degre 130 - Ubushuhe bw'umuzingi ata gushonga
Igereranyo ry’ubuzima: Gukuraho inyuma y’imyaka 15 nta n’umwe yerekanye gusageza igiti c’amazi muri XLPE
Ivyo bintu vyabaye mu mirima vyatumye dufata ingingo yacu yo mu 2005 yo guhindura neza imirongo y’uguhingura XLPE. Uyu musi, ku rwego rwa Shaanxi Jinghkong Cable, imirongo itatu ya CCV (Continuoious reung Vulcanization) ikora 24/7, igaragaza ubuhinga bwo gukingira umuriro XLPE.
II. Ikoranabuhanga ry'ubuhinga bwa none: Gukoresha ubuhinga bwa XLPE
1. Gufatanya Umubare w'Amazi: Gukomeye-Inyigisho
2008 substation mu gisagara co ku nkengera y’ikiyaga yanyigishije ibi: XLPE ntitinya umuriro, ariko ni ion y’amazi. Twarafatanije n’ibikoresho vy’ibikoresho vya kaminuza ya Xi’an Jiatong kugira ngo tugire umutsimvyi w’ibikorwa bibiri:
Ultra-Igice: Gukoresha Borealis BorcoatTM FE4420 n'ibice vy'ubuhumane bwa 5μm
Indwara y’umuhoro: Nitrogène- Igikoresho co gukingira ubukonje kirakuraho ibisigarira vy’ubukonje mu gukira kw’umwotsi
Ica gatatu - Umurya wihutisha ibipimo vy’ugukura (IEC 60502-2) vyemeza ubuzima burenga imyaka 40 ku migozi.
2. Gushiramwo: Icigwa canditswe mw'Amaraso
Umugambi wa metro 2015 kubera ivyononekaye vyagaragaje ko bitatu bitagira -:
III. Ivyiyumviro vy'Inguvu z'Inguvu Nshasha
Uko imigambi y’izuba n’umuyaga yariko iratera imbere, imigozi ya XLPE rusangi yarashize ahabona imipaka ikomeye:
1. Gukuraho Amanota y'Izuba ry'Izuba
UV Gukingira UV: Ibipimo vy'umuriro mu bugaragwa bwa Gobi vya Dunhuang vyagaragaye ko amajakete afise 2,5% y'ivyuma vy'ibara ry'agahama vy'umuyagankuba UV incuro 8
Inguvu- Ivyagezwe Bishobora Gukira: Imibumbe arwanya - y'umuntu (1:8 igipimo c'umurongo w'umurongo w'imirongo) ku buryo bwo gukurikirana
2. Uburebure bw'umuyaga bwo mu mazi
35kV XLPE yacu y’ubwato bwo mu kiyaga ca Bohai co mu kiyaga ca Bohai:
Ivyo bipimo vy’umunyu vy’amasaha 1.800, ubuzima bwavyo bwo guhingura umunyu urenze imyaka 30.
IV. Ivy'Abashinwa mu karere k'isi yose
"Belt and Road" imigambi y'inguvu yatwigishije ingingo mfatirwako mpuzamakungu ntizishobora gukoreshwa:
Icemezo ca CPR CPR: Urubeya B2ca {{1} =} XLPE ku mirima y'izuba
Ivyitegererezo vy'Iburasirazuba bwo hagati - Ivyitegererezo vy'Ivyiyumviro: degre 125 XLPO ku mirima y'amavuta ya Oman
Anti-Ivyiyumviro: Gamma- y'umwikomo ku migambi y'ishyamba ry'imvura ryo mu Bumanuko bushira Ubuseruko
Ivyo Shaanxi Jinhengkong Cable akora ubu birimwo:
Igiciro c'Ibarabara: 0.6/1kV gushika kuri 220kV XLPE
Ubwoko bw'Ivyiyumviro vy'Ivyiyumviro: Umuriro w'umuriro w'umuriro ({0}}kuvanga (950℃/3h), intsinga zidashobora guhangana n'ibikoko, intsinga zo gushaza za EV
Urutonde rushasha rw'inguvu: TUV 2PfG 1990 ku z'izuba, DNV{2}}GL ku muyaga
V. Ikoranabuhanga ry'Ikoranabuhanga: Imyaka yakurikiyeho
Amakuru yo mu migambi y'ibikorwa 100,000+ yerekana imigenderanire itatu:
1. Ugushiramwo ibishushanyo: DFOS (Ivyiyumviro vy'Ivyiyumviro vy'Ivyiyumviro vy'Ivyiyumviro) mu migambi y'umudereva w'umudereva w'ibuye ry'agaciro ry'Ivyiyumviro bishoboza gukurikirana ubushuhe bw'igihe c'umurongozi
2. Eco-Impinduka: Ibirimwo polyethylene vyahinduwe mulgen- ubuntu bw'urubeya rushika kuri 40%
3. Gutegura Imigozi: Imbere y'amakuru y'imbere y'igihe y'amakuru yerekana 35% vy'iterambere ry'umwaka
Epilogue
Kuva ku bugaragwa bw’Ubushinwa bwo mu Buraruko bushira Uburengero gushika ku Kiyaga c’Ubuperesi, kuva ku nzira za UHV gushika ku zuba ry’imbere, XLPE ifise intsinga z’amashanyarazi zikingira imipaka y’inguvu. Mu ruganda rw’ubwenge rwa Shaanxi Jinghkong, buri metero yose y’uburebure bw’umurongo wa XLPE bwo kugenzura neza (±1 degree, ±0.1Mpa umuvuduko). Guhitamwo umuhinguzi yihariye bisigura kuronka imyaka mirongo y’iragi ry’ubuhinga – umushinge w’igikorwa cacu ku bakiriya mu bihugu 130. Iyo ufise umugozi wa XLPE, urafata ubuhinga bw’ubuhinga bwa none bw’ubuhinga bwa none.