Yiziphi izidingo zamakhebula aphephile ngokwemvelo?
Ngaphakathi kwezindawo zezimboni eziyingozi lapho igesi evuthayo, umhwamuko kanye nothuli oluvuthayo kubeka khona izingozi zokuqhuma okuqhubekayo, izintambo eziphephile (i-IS) zimelela ukulawula ukuphepha okuthuthukisiwe okubalulekile kwezinsimbi ezisebenzisa amandla aphansi, ukuxhumana kanye nezifunda zokulawula. Ngokungafani nezintambo ezijwayelekile ezijwayelekile, izintambo eziphephile ngokwazo zenzelwe ngenhloso yokunciphisa ukukhishwa kwamandla kagesi ngaphansi kwezimo zokusebenza ezijwayelekile kanye nezimo zamaphutha, ukususa imithombo yokushisa engaba khona.
Unjiniyela'Ukuqonda Okuyinhloko: IS Ukwehluleka Kwekhebula Kuyagwenywa Kakhulu
Kusukela eminyakeni yami yokuhlangenwe nakho njengonjiniyela kagesi kanye nekhebula osebenza ngamaphrojekthi kaphethiloli, amakhemikhali kanye nezezimayini, ngikholelwa ngokuqinile ukuthi ukwehluleka kwekhebula le-IS akuvamile ukubangelwa ukukhubazeka kwezinto zokusetshenziswa. Kunalokho, kuvame ukuba umphumela wokukhethwa komklamo okungahambisani nomthetho, imikhawulo yepharamitha kagesi enganakwa noma ukufakwa okungafanele endaweni.
Ukuthobela ngokuqinile izidingo zobuchwepheshe, zesakhiwo, zezinto zokwakha kanye nokufakwa ezijwayelekile zomhlaba wonke kubalulekile ukuze kulondolozwe ubuqotho bokuphepha kwangaphakathi kuzo zonke izinhlelo zokusebenza zikawoyela negesi, ukucubungula amakhemikhali, ukumbiwa kwezimayini kanye nolwandle. Lesi sihloko sibuyekeza izidingo eziphoqelekile ezilawula ukwakheka kwekhebula eliphephile kanye nokufaneleka kwalo, kuhlanganiswe namacala ephrojekthi yomhlaba wangempela kanye nokuqonda kobunjiniyela.
Isidingo Esiyisisekelo: Ukuhambisana Nezindinganiso Zomhlaba Wonke
Ngokombono wobunjiniyela, isidingo esiyisisekelo sanoma iyiphi ikhebula eliphephile ngokwalo ukunamathela ezindinganisweni zomthetho nezobuchwepheshe eziqashelwa emhlabeni wonke. Lezi zindinganiso zisungula izindlela ezifanayo zokuqinisekisa umklamo, ukuhlolwa kokusebenza kanye nokuhambisana, okuqinisekisa ukuthi ikhebula lingasebenza ngokuphephile ezindaweni eziyingozi.
Isilinganiso sobuchwepheshe somhlaba wonke sezinhlelo eziphephile ngokwemvelo, okuhlanganisa nezintambo ezixhumanisayo, yilesi I-IEC 60079‑25Icacisa izidingo eziningiliziwe zomthamo wekhebula, i-inductance, ukukhethwa kwezinto kanye nomklamo wesakhiwo.
Ukuze kulandelwe imithetho yesifunda: Ukuthunyelwa kwempahla eYurophu kudinga ukulandelwa I-ATEX 2014/34/EU isiqondiso (sokuhlukaniswa kwezindawo eziqhumayo); izicelo zaseNyakatho Melika kumele zihlangabezane I-UL 60079‑11 kanye ne-NFPA 70 NEC 504; I-IECEx isitifiketi samukelwa emhlabeni wonke kumaphrojekthi angaphandle kwemingcele.
Icala Langempela 1:
Ngaphambilini besisebenzisana nemayini yamalahle yase-Australia, futhi imiphumela yayimihle kakhulu. Sikwazile ngisho nokuthola isabelo semakethe esingu-70%.
Isidingo Esiyinhloko Sobuchwepheshe: Ukulinganiselwa Kwamandla
Ukulinganiselwa kwamandla kuyisimiso sobuchwepheshe esiyinhloko esisekela ukwakheka kwekhebula eliphephile ngokwangaphakathi. Amandla kagesi agcinwe ngaphakathi kwekhebula kumele anganele ukukhanyisa umoya oyingozi ozungezile—ngisho noma kwenzeka i-short circuit noma ukwehluleka kwengxenye.
Ukuze kufezwe lokhu, onjiniyela kumele balawule ngokuqinile imingcele emibili ebalulekile kagesi: amandla kanye nokuguquguquka ngobude beyunithi ngayinyeEzindaweni eziyingozi zeQembu le-IIC (isb., i-hydrogen, i-acetylene), imikhawulo ejwayelekile yokuklama yile amandla ≤ 200 pF/m futhi ukugeleza komoya ≤ 1 μH/mLawa manani atholakala ekubalweni kwamandla wesekethe ukuqinisekisa ukuthi amandla aphezulu akhishwa ngesikhathi sephutha awadluli amandla amancane okuthungela (i-MIE) e-medium evuthayo eqondiwe.
Usayizi we-conductor nawo unqunyelwe, ngezindawo ezijwayelekile ezinqamula izigaba ezisukela ku-0.5 mm² kuya ku-2.5 mm² kusetshenziswa ithusi elifakwe ethini eligoqekile. Lokhu kulungiselelwa kulinganisela ukuqhutshwa kukagesi nokuguquguquka kwemishini kanye nomkhawulo wamandla, kuyilapho i-tin plating inikeza ukumelana nokugqwala ezindaweni zezimboni ezinzima.
Ithebula Lesifinyezo Sezidingo Eziyinhloko (Unjiniyela'Ireferensi Ewusizo)
| Isigaba Semfuneko | Imininingwane Yobunjiniyela Obuyinhloko | Izizathu Zobuchwepheshe kanye Nezindinganiso Ezifanele |
|---|---|---|
| Ukuthobela Imithetho | Isitifiketi somhlaba wonke/sesifunda; ukuhambisana okujwayelekile | Iqinisekisa ukuhambisana kanye nokuqinisekiswa kokuphepha; IEC 60079‑25, ATEX 2014/34/EU, UL 60079‑11, IECEx |
| Ukulinganiselwa Kwamandla | Umthamo ≤ 200 pF/m; Ukugeleza ≤ 1 μH/m (Iqembu IIC); 0.5–2.5 mm² iziqhubi zethusi ezifakwe ethini ezivaleleke ngaphakathi | Kuvimbela ukwakheka kwamandla angaphezu kwe-MIE yemidiya eyingozi; kuvimbela ukwakheka kwamanje kwamaphutha kanye nokwakheka kwenhlansi |
| Umklamo Wesakhiwo | Ukuvikela/isivikelo esivimbela ilangabi; isivikelo sangaphandle esiluhlaza okwesibhakabhaka; ukuvikela nge-electromagnetic | Izinto ze-PUR/LSZH zokumelana namakhemikhali/uwoyela; igobolondo eliluhlaza okwesibhakabhaka lokuhlonza okubonakalayo; i-Al-foil + i-braid yethusi efakwe ethini (≥80% ukumbozwa) ukunciphisa ukuphazamiseka kwe-EMI kanye nesignali |
| Ukusebenza Kwemishini Nokushisa | Izinga lokushisa lokusebenza: -40°C kuya ku-+70°C (iminithi); ukumelana nokukhathala okuguquguqukayo; ukumelana nokuhuzuka/ukugqwala | Iqinisekisa ukuqina ezindaweni zezimboni ezinzima; igcina ubuqotho besakhiwo ngesikhathi sokuhamba kwemishini |
Izidingo Zesakhiwo: Izinto Nezinto Zokuklama
Ngale kwezidingo zikagesi namandla, izinto ezicatshangelwayo zokuklama isakhiwo zibalulekile ekugcineni ubuqotho bokuphepha kwangaphakathi phakathi nesikhathi senkonzo yekhebula. Izinto zokuvala umoya kanye ne-sheath kumele zikhethwe ngenxa yokumelana kwazo namakhemikhali, ukubambezeleka komlilo kanye nokuqina komshini—i-polyurethane (PUR) kanye ne-low-smoke zero-halogen (LSZH) compounds zithandwa kakhulu ezisetshenziswa kakhulu ezimbonini.
Unjiniyela'Isexwayiso: Don'Izinto Ezingalingani Kahle Zomgodla
Ngombono wami, abasebenzisi abaningi bokugcina babukela phansi ukusebenza kwezinto zeshelufu. Izintambo ezivamile ze-PVC ziqhekeka ngokushesha ezitshalweni zamakhemikhali ezicebile ngamafutha, ziphule ukuvikela futhi zibangele izingozi zokuphepha ezifihliwe. Ukukhetha ukuvikela kanye neshelufu kuthinta ngqo impilo yesevisi yekhebula kanye nokuphepha ezindaweni ezinzima.
Ukuhlukaniswa Kwesivikelo Nokujikeleza: Gwema i-EMI kanye nokungcoliswa okuphambeneyo
Ukuvikela kanye nokuhlukaniswa kwesekethe kuyizidingo ezengeziwe zesakhiwo onjiniyela okumele bazibhekane nazo ukuze bavimbele ukuphazamiseka kwe-electromagnetic (EMI) kanye nokungcoliswa phakathi kwesekethe. Izintambo eziphephile ezingaphakathi kwe-Multi-core zivame ukufaka ukuvikela okuphindwe kabili (i-aluminium-polyester foil + i-high-density copper braid) kanye nentambo yokukhipha amanzi ebekelwe isisekelo.
Ngokolwazi lwami lwendawo, ukuqhubeka kokuvikela okungekuhle kanye nokuxhumeka kwezintambo zokudonsa amanzi okuphukile kuphakathi kwezimbangela ezintathu eziphezulu zokungazinzi kwesignali ye-IS ezitshalweni ze-petrochemical. Okubaluleke kakhulu, amasekethe e-IS kumele ahlukaniswe ngokomzimba nezintambo zikagesi ezingezona eziphephile ngaphakathi, njengoba kuchaziwe ku-IEC 60079-25, ukuze kugwenywe ukudluliselwa kwamandla okungenza ukuphepha kwangaphakathi kungasebenzi.
Ukusebenza Kwemishini Nokushisa: Ukuqina Kwezindawo Ezidinga Umzamo
Izidingo zokusebenza kwemishini nokushisa zakhiwe ukuqinisekisa ukuthembeka kwekhebula ezimweni zokusebenza ezidinga amandla. Izintambo eziphephile ngaphakathi kumele zimelane nokugoba, ukusonta kanye nokukhubeka okuphindaphindiwe—okuvamile ezinhlelweni zamarobhothi kanye nemishini yeselula. Ukuhlolwa kokukhathala okunamandla kuyimpoqo ukuqinisekisa ukusebenza kwesikhathi eside.
Izidingo Zokugcina: Isitifiketi, Ukumaka Nokufaka
Isitifiketi, ukumaka kanye nemikhuba yokufaka kugcwalisa izidingo zobunjiniyela zamakhebula aphephile ngokwemvelo. Zonke izintambo ze-IS kumele zibe nezimpawu ezicacile nezihlala njalo ezibonisa amazinga okuhambisana, izilinganiso zeqembu legesi, izinga lokushisa kanye namanani e-capacitance-inductance—lezi zimpawu zivumela onjiniyela ukuqinisekisa ukufaneleka kwekhebula ezindaweni ezithile eziyingozi.
Ukufakwa kumele kuhambisane neziqondiso eziqinile: Amasekethe e-IS kumele aqondiswe ngokwehlukana namakhebuli angewona e-IS, ama-cable glands aqinisekisiwe angaqhumi kanye namabhokisi okuxhumanisa kumele asetshenziswe ukugcina uphawu lwekhebuli olungashisi, futhi izibalo ze-loop kumele zenziwe ukuqinisekisa ukuthi umthamo/i-inductance yesistimu iyonke (ikhebuli + izinsimbi) ayidluli imikhawulo ephephile.
Unjiniyela'Isifundo Sokugcina: Ungalokothi Uyekethise Ngokuphepha Ngezindleko
Njengonjiniyela kagesi osebenza ngobuchwepheshe ezinhlelweni zezindawo eziyingozi, kubalulekile ukugcizelela ukuthi ukuhambisana nalezi zidingo akuyona nje isibopho sokulawula—kungumsebenzi wobunjiniyela oyisisekelo ukuvikela abasebenzi, imishini kanye nezikhungo.
Ngombono wami, ukungaqondi kahle okukhulu embonini ukuphatha izintambo eziphephile ngokwemvelo “njengezintambo zesignali ezivamile ezinamajakethi aluhlaza okwesibhakabhaka”. Eqinisweni, yonke ipharamitha—kusukela ekuphakameni kwentambo yomqhubi, ukujiya kokushisa kuya ekumbozweni kwesivikelo—ibalwa ngokuqinile ukuze kuncishiswe amandla. Ngisho nokuphambuka okuncane kungenza uhlelo lonke lokuphepha lwangaphakathi lungasebenzi.
Izitayela Zesikhathi Esizayo: Izidingo Eziguqukayo Zezindawo Ezihlakaniphile Zezimboni
Njengoba kusetshenziswa kakhulu izinsimbi ezihlakaniphile, ukuzenzakalela kwezimboni kanye nokuqapha okude ezindaweni eziyingozi, izidingo zobunjiniyela zezintambo eziphephile ngokwazo ziyaqhubeka nokukhula. Abakhiqizi bathuthukisa izixazululo zekhebula ze-IS eziguquguqukayo kakhulu, ezishisa kakhulu kanye nezenziwe ngokwezifiso ukuze kuhlangatshezwane nezidingo zezinhlelo zezimboni zesimanje.
Kwabonjiniyela kanye namaqembu okuthenga, isiphakamiso sami esiyinhloko yilesi: ungalokothi unciphise imingcele ye-capacitance-inductance, amamaki ezinto ezibonakalayo kanye nezitifiketi zenkampani yangaphandle zokunciphisa izindleko. Ikhebula elilodwa elingahambisani nomthetho lingase liholele emiphumeleni yokuphepha engenakuguqulwa kuyo yonke indawo yezimboni.
🏢Kungani Ikhebula le-Dingzun Lokufakwa Kwendawo Yakho Eyingozi:
Ukulungele ukuvikela indawo yakho eyingozi?
Udinga ikhebula le-IS eliqinisekisiwe lokusebenzisa izinsimbi zakho eziyingozi endaweni yakho? [Xhumana nethimba lethu lobuchwepheshe namuhla ukuze uthole ukubonisana]