Izidingo ezijwayelekile zemigqa ephezulu:

Imigqa ephezulukufanele isebenzise kabanzi intambo eboshwe ngensimbi ene-aluminium noma i-aluminium stranded wire.I-cross-section yocingo oluyi-aluminiumstranded yomugqa ophezulu we-voltage ephezulu akufanele ibe ngaphansi kwamamilimitha-skwele angama-50, ingxenye yesiphambano socingo oluyingqikithi ye-aluminium ehlanganisiwe akufanele ibe ngaphansi kwamamilimitha-skwele angama-35;ingxenye yesiphambano yocingo olungenalutho akufanele ibe ngaphansi kwamamitha-skwele ayi-16.

I-wire cross section kufanele ihlangabezane nezidingo zomthwalo omkhulu.
Ukukhethwa kwesigaba esiphambanayo kufanele futhi kuhlangabezane nokulahlekelwa kwamandla kagesi angekho ngaphezu kuka-5% we-voltage elinganisiwe (imigqa ephezulu yamandla aphezulu), noma u-2% kuya ku-3 (imigqa yokukhanyisa enezidingo eziphezulu zokubuka).Futhi kufanele ukuhlangabezana amandla athile mechanical.

Ukwakhiwa kwemigqa ephezulu
Indlela yokucaciswa kokwakhiwa kanye nezinyathelo zomugqa ongaphezulu zimi kanje:

Isilinganiso somugqa: hlola indawo nezici ngokomdwebo wokuklama, thola indawo yokuqala umugqa, iphoyinti lekhona kanye nokuma kwesigxobo sesitolo setheminali, ekugcineni unqume indawo yesigxobo esimaphakathi nesigxobo sokuqinisa bese ufaka isigxobo.

Ukugcwaliswa kwe-backfilling ye-foundation pit excavator: Lapho kumbiwa umgodi wesisekelo, kufanele kunakwe izinga lomhlabathi nendawo ezungezile.Ubukhulu bomgodi wokuvuleka ngokuvamile bungamamitha angu-0.8 ububanzi namamitha angu-0.3 ubude.Ubukhulu bomgodi wezintambo ngokuvamile bungamamitha angu-0.6 ububanzi namamitha angu-1.3 ubude.Inani eliyisethenjwa lokujula okungcwatshwe kwesigxobo limi kanje:

Ubude besigxobo sikasimende (m) 7 8 9 10 11 12 15
Ukujula okungcwatshwe (m) 1.1 1.6 1.7 1.8 1.9 2.0 2.5
Lapho ugcwalisa isisekelo sombhoshongo kanye nesisekelo sekhebula, akuvunyelwe ukubuyisela emuva izimpande zesihlahla, ukhula, njll. Inhlabathi kufanele ihlanganiswe ngaphezu kokuphindwe kabili, futhi i-backfill kufanele ibe ngu-30-50 cm ngaphezu komhlaba.

Isigxobo: Izigxobo zikagesi zisetshenziselwa ukusekela izintambo emigqeni engaphezulu.Kunezinhlobo eziningi zezigxobo zikagesi, futhi ezivamile ziyizigxobo eziqondile, izigxobo zekhoneni, izigxobo zokugcina, njll ngokwemisebenzi yazo.Izindlela zezigxobo ezivame ukusetshenziswa yilezi: izigxobo ze-crane, izigxobo ezintathu, izigxobo ezibheke phansi kanye nezigxobo zokumisa.

I-tripod pole iyindlela elula yokumisa isigxobo.Incike kakhulu kwiwintshi encane ku-tripod ukuze iphakamise isigxobo.Uma isigxobo sesimisiwe, qala ngokususa isigxobo emaphethelweni womgodi, umise i-tripod, bese ubeka isigxobo esigxotsheni.Izintambo zokudonsa ezintathu ziboshelwa esihlokweni ukuze kulawuleke isigxobo, bese isigxobo siyamiswa bese siphonswa emgodini wezigxobo, futhi ekugcineni isigxobo siyalungiswa futhi inhlabathi ihlanganiswe.
Ukuhlanganiswa kwengalo yesiphambano: Ingalo yesiphambano iwubakaki wokufaka ama-insulators, i-switchgear, izibambisi, njll. Ngokwale nto, kukhona izingalo eziphambanayo zokhuni, izingalo eziphambanayo zensimbi kanye nezingalo eziphambanayo ze-ceramic.Ingalo yesiphambano senduku yomugqa kufanele ifakwe ohlangothini lomthwalo, futhi induku engeyona yomugqa kufanele ifakwe ngakolunye uhlangothi lwe-tension.

Ama-insulators: Ama-insulators asetshenziselwa ukubamba izintambo endaweni.Ngakho-ke kufanele ibe nezindawo ezanele zokuhlukanisa ugesi namandla emishini.Ama-insulators asetshenziswa kakhulu emigqeni ephezulu ahlanganisa izivikeli zamaphini, izivikeli ezilengayo, izivikeli zemvemvane, njll. Amandla kagesi alinganisiwe wama-insulators aphansi ngu-1kV, kanti ama-insulators aphezulu asetshenziselwa imigqa ye-3kV, 6kV, kanye ne-10kV.

Ukwakhiwa kokudonsa ngocingo: Ukudonsa ngocingo kulayini ongaphezulu kudlala indima yokusekela isigxobo.Ngokuvamile, induku yekhona, i-terminal rod, i-tension rod, njll. kumele ibe nokudonsa ngocingo ukuze isekele isigxobo, ukuze ingagwegwesi ukushuba kocingo.Ngokuvamile, i-engeli ephakathi kwekhebula nomhlabathi iphakathi kuka-30° no-60°, futhi isibambo sekhebula, isibambo sekhebula esimaphakathi, nesibambo sekhebula esiphansi kulungiswa ngokulandelana.

Indlela yokumisa izintambo: izintambo ezifakwayo zihlanganisa ukwendlaleka, izintambo ezixhumayo, izintambo ezilengayo nezintambo eziqinisayo, njll. Inkokhelo iwukukhulula ucingo ku-spool bese ulumisa phezu kwengalo ewela ingalo.Kunezinhlobo ezimbili zesakhiwo somugqa: indlela yokudonsa bese udedela nendlela yokusabalalisa.Amakhondatha ezintambo eziphezulu ajwayele ukuxhunywa ngokuhlanganisa, ukubopha, nokuhlanganisa.Ukulenga ucingo ukudonsa ucingo esigxotsheni ngentambo encane bese ulubeka engalweni ephambene.Ukuqinisa ucingo ukubopha intambo ngokuqinile kusivikeli sezinto ekugcineni kokumelana nokuqina, bese uyiqinisa ngentambo eqinile ngakolunye uhlangothi.I-Sag i-sag yemvelo eyakhiwe ukushona kwentambo phakathi kwe-span.

Ukulandelana kwesigaba sokuhlelwa kwezigaba ezintathu zomugqa ongaphezulu kuzohlangabezana nezidingo ezilandelayo: kusukela ohlangothini lwesobunxele olubhekene nomthwalo, ukulandelana kwesigaba sokuhlelwa komqhubi yi-L1, N, L2, L3, futhi umugqa ophakathi nendawo ngokuvamile uvuliwe. ohlangothini lomgwaqo wepali.Izigxobo zikagesi zivame ukumiswa emaceleni asenyakatho nasempumalanga omgwaqo.