Momwe Mungasankhire Mafoni Oteteza Kuphulika kwa Malo Oopsa

Chiyambi

Kusankha zida zolumikizirana m'malo oopsa kumafuna zambiri kuposa kungogwirizanitsa foni ndi kapangidwe ka malo. M'malo omwe muli mpweya woyaka, nthunzi, kapena fumbi, foni yolakwika ikhoza kuyambitsa chiopsezo choyatsira moto, kulephera kuwunika momwe zinthu zilili, kapena kusiya kugwira ntchito pamene magulu akuifuna kwambiri. Nkhaniyi ikufotokoza momwe mungayang'anire mafoni osaphulika poyang'ana magulu a malo, miyezo ya satifiketi, chitetezo cha malo obisika, kulimba, kuyanjana kwa netiweki, ndi zinthu zogwiritsidwa ntchito mwadzidzidzi. Pomaliza, owerenga adzakhala ndi njira yothandiza yofananizira mitundu ndikusankha zida zomwe zimathandiza chitetezo cha zomera komanso ntchito zodalirika za tsiku ndi tsiku.

Chifukwa Chake Mafoni Oteteza Kuphulika Ndi Ofunika Pa Chitetezo ndi Kupitilira

M'mafakitale komwe kuli mpweya woyaka, nthunzi, kapena fumbi loyaka, zida zolumikizirana zodziwika bwino zimakhala pachiwopsezo chachikulu choyatsira moto. Ngakhale mphamvu zamagetsi zochepa zomwe zimafunika kuti foni ikhale yodziwika bwino zimatha kupitirira mphamvu zochepa zoyatsira moto za zinthu zosakhazikika, zomwe m'magulu ena a gasi zimakhala zochepa ngati 0.02 millijoule. Mafoni osaphulika amapangidwa makamaka kuti ateteze kuphulika kwamkati ndikuletsa kuti nthunzi kapena kutentha kusayatse mlengalenga wozungulira. Kugwiritsa ntchito zida zapaderazi si njira yongolamulira chabe; ndi chitetezo chofunikira kwambiri pa moyo wa anthu komanso chinthu chofunikira kwambiri pakupitiliza kugwira ntchito.

Kupatula kupewa zochitika zoopsa,mafoni osaphulikaOnetsetsani kuti njira zofunika zolumikizirana zikhale zotseguka panthawi yamavuto. Pamene zomangamanga za netiweki zalephera kapena pamene ogwira ntchito akuyenera kugwirizanitsa njira zovuta zozimitsira m'malo oopsa, zida zolimbazi zimapereka njira yodalirika yopulumutsira. Kuyika kwawo kumagwirizana mwachindunji ndi nthawi yochepa yoyankhira mwadzidzidzi komanso kuchepetsa nthawi yogwira ntchito panthawi yamavuto akuluakulu.

Kodi mafoni osaphulika amachepetsa bwanji chiopsezo chogwira ntchito komanso nthawi yopuma?

Mafoni osaphulika amachepetsa chiopsezo chogwira ntchito kudzera muukadaulo wapamwamba kwambiri wa enclosure ndi ma circuitry otetezeka mkati. Ma enclosure olemera, omwe nthawi zambiri amapangidwa ndi aluminiyamu yopanda mkuwa, polyester yolimbikitsidwa ndi galasi (GRP), kapena chitsulo chosapanga dzimbiri cha 316L, amapangidwa kuti azitha kupirira kuphulika kwamkati popanda kusweka. Njira zamoto mkati mwa ma enclosure awa zimapangidwa kuti zizitha kupirira bwino, kuziziritsa mpweya uliwonse wotuluka pansi pa kutentha kwa kutentha kwa chilengedwe chakunja.

Pogwiritsa ntchito zida zomwe zili ndi Mean Time Between Failures (MTBF)—nthawi zambiri zimapitirira maola 50,000—mafoni awa amachepetsa kwambiri kuchuluka kwa njira zokonzera m'malo oopsa. Kuchepa kwa nthawi yokonza kumatanthauza kuchepa kwa kusokonezeka kwa ntchito, kuchepa kwa ndalama zogwirira ntchito, komanso kulumikizana kodalirika komwe kumagwira ntchito bwino nthawi zonse komanso pamavuto achilengedwe.

Ndi mafakitale ati ndi malo oopsa omwe amafunikira kwambiri

Kufunika kwa mafoni osaphulika kumakhudza mafakitale ambiri olemera.Mapulatifomu ochotsera mafuta ndi gasi, malo oyeretsera mafuta, ndi mafakitale opangira mankhwala amafunika kuyikidwa kwambiri chifukwa cha kupezeka kosalekeza kwa nthunzi ya hydrocarbon. M'magawo awa, zida ziyenera kuyesedwa kuti zikhale ndi madera oopsa a Zone 1 kapena Zone 2 (gasi).

Kuphatikiza apo,migodi, kukonza tirigu, ndipo mafakitale opanga mankhwala akukumana ndi zoopsa zazikulu chifukwa cha fumbi loyaka. M'malo awa, tinthu tating'onoting'ono tomwe timapachikidwa mlengalenga tingayambitse kuphulika koopsa. Mafoni omwe akugwiritsidwa ntchito pano ayenera kukwaniritsa magulu olimba a Zone 21 kapena Zone 22 (fumbi), kuonetsetsa kuti kutentha kwawo kwakunja sikupitirira malire a fumbi lomwe lilipo, lomwe nthawi zambiri limalamulidwa mwamphamvu kuti likhale pansi pa 135°C (T4 rating).

Zomwe Zili Zofunika Kwambiri Posankha Mafoni Otsimikizira Kuphulika

Kusankha mafoni omwe saphulika kumafuna kulinganiza bwino pakati pa zoopsa zachilengedwe za malo ogwirira ntchito ndi mphamvu zotetezera za zipangizozi. Akatswiri ogula ayenera kuwunika magawo osiyanasiyana aukadaulo, kuyambira kukhulupirika kwa enclosure mpaka kugwirira ntchito limodzi kwa netiweki, kuonetsetsa kuti zipangizo zomwe zasankhidwa zikupereka chitetezo chokwanira komanso kulumikizana kodalirika kwambiri pakakhala zovuta kwambiri.

Kodi ogula ayenera kuyerekeza bwanji magulu a malo oopsa ndi chitetezo cha kulowa

Kugawa malo oopsa kumatanthauza njira yofunikira yotetezera foni. Ogula ayenera kudziwa ngati malo oikirako foni asankhidwa kukhala Zone 1/21 (mwayi waukulu wa mlengalenga wophulika) kapena Zone 2/22 (mwayi wotsika). Mafoni opangidwira Zone 1 nthawi zambiri amagwiritsa ntchito mfundo zotetezera za Ex d (zosapsa ndi moto) kapena Ex e (zachitetezo chowonjezeka).

Chofunikanso kwambiri ndi Ingress Protection (IP), chomwe chimatsimikizira kukana kwa malo obisika ku fumbi ndi chinyezi. Malo opangira mafakitale amafuna osachepera IP66 kuti athe kupirira nyanja yolemera kapena ma jet amphamvu amadzi, pomwe ma IP67 ndi omwe amakondedwa m'malo omwe amamizidwa kwakanthawi. Ogula ayeneranso kuyerekeza ma rating awa ndi miyezo ya NEMA 4X mu ntchito zaku North America kuti atsimikizire kuti ali ndi kukana kwa dzimbiri.

Ndi zinthu ziti zolumikizirana, mphamvu, ndi kugwiritsa ntchito zomwe zili zofunika kwambiri

Mafoni amakono olimbana ndi kuphulika amapezeka mu ma configurations a analog ndi Voice over Internet Protocol (VoIP). Ma VoIP model omwe amagwiritsa ntchito SIP (Session Initiation Protocol) amapereka kasamalidwe kapamwamba ka netiweki, luso lodziyesa, komanso kuphatikiza bwino mu makina apakati a PBX. Pakupereka mphamvu, Power over Ethernet (PoE) kudzera mu muyezo wa IEEE 802.3af ndiabwino kwambiri, amalola deta ndi mphamvu zokwana 15.4W kuyenda pa chingwe chimodzi, motero kupangitsa kuti kukhazikitsa kukhale kosavuta.

Magwiridwe antchito ndi ofunikira kwambiri kwa ogwira ntchito mu Zipangizo Zodzitetezera Zaumwini (PPE) zovuta. Makiyi ayenera kukhala ndi mabatani akuluakulu komanso otalikirana kwambiri kuti agwirizane ndi magolovesi akuluakulu a mafakitale. Kuphatikiza apo, phokoso lozungulira m'mafakitale opangira zinthu nthawi zambiri limapitirira 85 dB; motero, mafoni ayenera kukhala ndi maikolofoni oletsa phokoso ndi zoyimbira zapamwamba zomwe zimatha kufika 110 dB, nthawi zambiri zimaphatikizidwa ndi ma beacons owoneka bwino kuti zitsimikizire kuti mafoni sakuphonya.

Kodi ndi njira ziti zoyerekeza zomwe ogula ayenera kugwiritsa ntchito poyesa zosankha

Poyesa mitundu yosiyanasiyana, ogula ayenera kugwiritsa ntchito njira zofananizira zomwe zimayang'ana kulimba kwa moyo. Chingwe cha m'manja, chomwe nthawi zambiri chimalephera, chiyenera kukhala ndi chidebe cholimba chachitsulo chosapanga dzimbiri chokhala ndi mphamvu yokoka yoposa 200 kg. Zosinthira zamaginito zopanda ziwalo zosuntha ndi zabwino kwambiri kuposa zofunda zamakina zachikhalidwe, chifukwa zimachotsa kuwonongeka kwa kugwedezeka ndikuletsa fumbi kulowa.

Kuchuluka kwa kutentha komwe kumagwiritsidwa ntchito ndi chinthu china chofunikira kwambiri. Mafoni apamwamba kwambiri omwe saphulika amagwiritsa ntchito zida zamkati zomwe zimatha kugwira ntchito bwino kutentha kuyambira -40°C m'malo osungira zinthu ku Arctic mpaka +70°C m'malo oyeretsera zinthu m'chipululu. Kuwunika malire awa kumatsimikizira kuti zida zomwe zasankhidwa sizidzawonongeka ndi kutentha kwa nthawi yonse yomwe zikugwira ntchito.

Momwe Mungatsimikizire Kutsatira Malamulo ndi Miyezo Yachigawo

Kugula zida m'malo oopsa kumaphatikizapo kugwiritsa ntchito njira zovuta zotetezera zapadziko lonse lapansi komanso zachigawo. Kulephera kutsimikizira kuti malamulo akutsatira malamulo sikungoika pachiwopsezo chitetezo cha malo komanso kungayambitsenso mavuto akuluakulu azamalamulo komanso kukana inshuwaransi. Kuwunikanso zikalata mozama ndi gawo losakambirana la njira yogulira.

Ndi ziphaso ziti, zizindikiro, ndi zikalata zomwe ziyenera kufufuzidwa

Foni iliyonse yotetezera kuphulika iyenera kutsagana ndi Chikalata Chovomerezeka Chovomerezeka (DoC) ndi satifiketi yovomerezeka yochokera ku labotale yoyesera yovomerezeka (monga PTB, UL, kapena Baseefa). Ogula ayenera kuyang'anitsitsa mosamala zizindikiro za Ex zomwe zili pa dzina la chipangizocho. Mwachitsanzo, chizindikiro cha 'Ex db eb IIC T6 Gb' chimasonyeza chitetezo cholimba komanso chotetezeka, choyenera gulu la mpweya wotentha kwambiri (Hydrogen/Acetylene) wokhala ndi kutentha kwakukulu kwa pamwamba pa 85°C.

Kutsimikizika ndi kutsata ndikofunikira kwambiri. Magulu ogula ayenera kutsimikizira manambala a satifiketi mwachindunji kudzera mu database ya bungwe lopereka. Kuphatikiza apo, Lipoti Lowunikira Ubwino (QAR) la wopanga kapena Chidziwitso Chotsimikizira Ubwino (QAN) liyenera kukhala laposachedwa, kuonetsetsa kuti malo awo opangira zinthu akusunga malamulo okhwima ofunikira kuti apange zida zosasankhidwa nthawi zonse.

Kodi zofunikira za ATEX, IECEx, NEC, ndi zina za m'deralo zimasiyana bwanji

Malamulo a m'madera ndi omwe amalamula kuti ndi ziphaso ziti zomwe zili zovomerezeka mwalamulo.Malangizo a ATEX(2014/34/EU) ndi yofunikira pa kukhazikitsa mkati mwa European Union, pogwiritsa ntchito njira yogawa magawo yochokera ku Zone. IECEx imagwira ntchito ngati maziko apadziko lonse lapansi odziwika ndi mayiko ambiri padziko lonse lapansi, zomwe zimapangitsa kuti mapulojekiti odutsa malire azivomerezedwa mosavuta popanda kufunikira mayeso obwerezabwereza.

Ku North America, National Electrical Code (NEC) imagwiritsa ntchito kwambiri njira ya Class and Division, ngakhale kuti ikugwirizana pang'onopang'ono ndi njira ya Zone (NEC 500 vs. NEC 505). Foni yovomerezeka ya ATEX Zone 1 si yovomerezeka yokha kuti igwiritsidwe ntchito m'malo okhala ku US a Class I, Division 1. Ogula omwe akuyang'anira unyolo wopereka zinthu padziko lonse lapansi ayenera kumvetsetsa kusiyana kumeneku kuti atsimikizire kugula kotsatira malamulo m'madera osiyanasiyana.

Momwe Mungayesere Ogulitsa, Mtengo Wonse, ndi Kutumiza

Kusankha zipangizo zoyenera ndi gawo limodzi chabe la njira imeneyi; kugwirizana ndi wopanga waluso kumatanthauza kupambana kwa nthawi yayitali kwa ntchitoyo. Kuwunika kwathunthu kwa luso la ogulitsa, Mtengo Wonse wa Umwini (TCO), ndi chithandizo chokhazikitsa pambuyo pokhazikitsa kumatsimikizira kuti mafoni osankhidwa omwe saphulika amapereka phindu komanso chitetezo chokhazikika.

Ndi njira ziti zopezera zinthu zomwe zimathandiza kuzindikira opanga oyenerera

Opanga oyenerera a zida zoteteza kuphulika ayenera kuwonetsa mbiri yapadera ya uinjiniya.satifiketi yokhazikika ya ISO 9001, ogula ayenera kufunafuna ogulitsa omwe ali ndi ma audit enieni a Ex manufacturing. Muyeso wofunikira wa kusaka ndi kuchuluka kwa zolakwika zakale za wogulitsa; opanga apamwamba amasunga kuchuluka kwa zolakwika pansi pa 0.5% pazida zolumikizirana zomwe sizinali zapamwamba.

Ogula ayeneranso kuwunika momwe wopanga amagwirizanira ndi makina awoawo. Ogulitsa omwe amapanga ma mainboard awoawo ndi makina awoawo nthawi zambiri amapereka ulamuliro wapamwamba kwambiri komanso moyo wautali wa zinthu poyerekeza ndi osonkhanitsa omwe amangoyikanso zinthu zina. Kupempha maphunziro a momwe zinthuzo zingagwiritsidwire ntchito m'malo ovuta ngati amenewa kumapereka umboni wooneka bwino wa luso la ogulitsa.

Kodi ogula ayenera kuyerekeza bwanji nthawi yogulira zinthu, zida zosinthira, ndi chitsimikizo

Nthawi yoperekera chithandizo ndi yofunika kwambiri pakukonzekera nthawi ya ntchito. Mafoni okhazikika omwe sagwedezeka ndi kuphulika ayenera kukhala ndi nthawi yoperekera chithandizo ya masabata 4 mpaka 8, pomwe ma SIP configurations apadera okhala ndi ma beacon integration amatha kukhala masabata 12 mpaka 16. Ogula ayenera kuganizira nthawi imeneyi mu njira zawo zofunika kwambiri za ntchito kuti apewe kuchedwa kokwera mtengo kwa ntchito.

Kuti awerenge molondola TCO, okhudzidwa ayenera kuwunika nthawi ya chitsimikizo ndi kupezeka kwa zida zina. Ogulitsa apamwamba nthawi zambiri amapereka chitsimikizo kuyambira miyezi 24 mpaka 36. Kuphatikiza apo, kapangidwe ka foni kamasintha momwe imagwiritsidwira ntchito. Ngati foni yawonongeka, kuthekera kosintha chipangizocho chokha m'munda—m'malo mobwezera chipangizo chonse cha aluminiyamu cholemera makilogalamu 15 ku fakitale—kumachepetsa kwambiri ndalama zonyamula katundu komanso nthawi yolumikizirana.

Kodi Njira Yabwino Yosankhira Zosankha Ndi Iti?

Njira yokonzekera bwino komanso yogwiritsira ntchito deta imaletsa zolakwika zodula pakupanga zinthu ndipo imatsimikizira kuti zomangamanga zolumikizirana zomwe zasankhidwa zikugwirizana bwino ndi njira zachitetezo za malo ogwirira ntchito. Njirayi imafuna mgwirizano pakati pa akuluakulu azaumoyo ndi chitetezo, mainjiniya a IT/telecom, ndi akatswiri ogula zinthu.

Ndi njira ziti zowunikira malo ndi zofunikira zomwe ziyenera kukhala patsogolo

Njira yosankha iyenera kuyamba ndi kuwunika kwathunthu kwa malo. Akatswiri achitetezo ayenera kujambula malo kuti adziwe magulu enieni a malo oopsa, kujambula magulu enieni a mpweya (IIA, IIB, kapena IIC) ndi magulu a kutentha (T1 mpaka T6) omwe alipo m'dera lililonse lokhazikitsa. Mapu awa ndi maziko enieni a zofunikira zonse za zida zotsatirazi.

Nthawi yomweyo, kafukufuku wa mawu ndi chilengedwe ayenera kuchitika. Ngati phokoso la mlengalenga likupitirira 85 dB, mfundozo ziyenera kusinthidwa kuti ziphatikizepo ma acoustic hood ndi ma beacons othandizira. Mainjiniya a netiweki ayeneranso kuwunika zomangamanga zomwe zilipo kuti asankhe pakati pa kukoka chingwe chatsopano cha CAT6 kuti chigwiritsidwe ntchito pa PoE VoIP kapena kugwiritsa ntchito mkuwa wakale wa waya ziwiri pamitundu ya analog.

Ndi mfundo zomaliza ziti zomwe anthu omwe akukhudzidwa ayenera kugwiritsa ntchito popanga chisankho

Pamene kuwunika kwa malo kwatha, okhudzidwa ayenera kugwiritsa ntchito njira yowunikira kuti aone zomwe zaperekedwa. Kuyeza kwa mafakitale kungapereke 40% kutsata malamulo achitetezo ndi kutsimikiza kwa satifiketi, 30% kukugwirizana kwaukadaulo ndi kugwirira ntchito limodzi, 20% ku Mtengo Wonse wa Umwini (kuphatikiza zotsala ndi deta ya MTBF), ndi 10% ku chithandizo cha ogulitsa ndi nthawi yotsogolera.

Pomaliza, chisankhocho chikukhazikika pakupeza mgwirizano pakati pa chitetezo cha kuphulika kosasinthasintha ndi magwiridwe antchito amakono olumikizirana. Pogwiritsa ntchito njira zaukadaulo ndi zamalonda molimbika, ogwira ntchito m'mafakitale amatha kukhazikitsa netiweki yolimba yamafoni yomwe imateteza antchito, kusunga malamulo okhwima, ndikuwonetsetsa kuti pali mgwirizano wabwino m'malo oopsa kwambiri padziko lonse lapansi.

Mfundo Zofunika Kwambiri

• Zomaliza zofunika kwambiri ndi zifukwa zomveka za mafoni otsimikizira kuphulika
• Mafotokozedwe, kutsata malamulo, ndi macheke owopsa oyenera kutsimikiziridwa musanachite izi
• Njira zotsatila zogwira mtima komanso machenjezo omwe owerenga angagwiritse ntchito nthawi yomweyo

Mafunso Ofunsidwa Kawirikawiri

Kodi foni yotetezeka kuphulika iyenera kukhala ndi satifiketi yanji?

Yambani ndi gulu la malo: Gawo 1/2 la mpweya kapena Gawo 21/22 la fumbi. Sankhani mayunitsi omwe ali ndi satifiketi yoyenera ya ATEX; Siniwo imaperekanso zinthu zogwirizana ndi zofunikira za CE, FCC, ROHS, ndi ISO9001.

Kodi ndingasankhe bwanji pakati pa mafoni a analog ndi VoIP omwe safuna kuphulika?

Gwiritsani ntchito analogi pa mizere yosavuta yakale komanso kuyimba foni yadzidzidzi. Sankhani VoIP ngati mukufuna kuphatikiza IP PBX, kasamalidwe kapakati, komanso kukulitsa makina mosavuta m'malo akuluakulu amafakitale.

Kodi ndi IP rating iti yomwe ikulimbikitsidwa m'malo oopsa akunja?

Sankhani osachepera IP66 ngati pali fumbi, mvula, ndi madzi osambira. Sankhani IP67 ngati n'zotheka kumizidwa kwakanthawi kapena malo onyowa kwambiri.

Ndi zipangizo ziti zomwe zimagwira ntchito bwino m'malo oopsa kwambiri?

Gwiritsani ntchito aluminiyamu kapena GRP yopanda mkuwa m'malo oopsa a mafakitale. Sankhani chitsulo chosapanga dzimbiri cha 316L komwe kuli dzimbiri kwambiri, monga m'mphepete mwa nyanja, m'malo a mankhwala, kapena m'madzi.

N’chifukwa chiyani tiyenera kuganizira za Siniwo pankhani ya mafoni osaphulika?

Siniwo imapereka ntchito zolumikizirana zamafakitale zomwe zimapezeka nthawi imodzi, kuyambira pakupanga mpaka kukonza, ndipo imapanga zoposa 90% ya zinthu zofunika kwambiri mkati, zomwe zimathandiza kuti zinthu zikhale bwino komanso kuti ntchito zodalirika zitheke m'malo oopsa.