Shenhai e fakamoʻoni fakaʻauha
Kuo pau ke maʻu ʻa e meʻangāue fakaʻuhila ki he maluʻí ʻi ha feituʻu ʻoku fokotuʻutuʻu totonu. ʻOku ʻikai ngata pe ʻi he mahuʻinga ʻo e hiva ko ʻeni ki hono fakatahatahaʻi ʻo e ngaahi meʻa fakaʻuhila ka ke shielding kinautolu mei he ngaahi fakamanamana mei tuʻa hange ko e fanga kiʻi meʻa fefeka, hauhau ʻo e ʻeá, mo e vaí. ʻOku fakatupu ʻe he ngaahi ʻelemeniti ko ʻeni ha tuʻunga fakatuʻutamaki lahi ʻi he lava ke nau iku ki ha circuits nounou, ʻaofi maluʻi mei movete, mo e ngaahi meʻa fakaʻuhila fakatuʻutamaki ʻe fakahoko.
ʻOku ʻiloa ia ʻoku tuʻu laveangofua ʻa e ngaahi meʻangaue fakaʻuhila ki he ngaahi meʻa ʻo e ʻatakai. Fefeka ʻuli, hange ko ʻeni, lava ʻo infiltrate mo fakatupu ha circuits nounou, neongo ʻe lava ʻe he hauhaú ʻo tukuhifo e ʻaofi maluʻi mei, taki ki he ngaahi mama mo e ngaahi kalofiama – ko ha tukunga fakatuʻutamaki moʻoni. ʻE lava ʻe hono fakaʻaongaʻi ʻo e ngaahi puha ʻoku ʻi ai ha faʻahinga maluʻi totonu ʻo taʻofi ʻa e ngaahi fakatuʻutamaki ko.
Fakatatau ki he tuʻunga moʻui GB4208-2008, ʻa ia ʻoku ne fakamahinoʻi ʻa e tuʻunga maluʻi (Kouti IP), ʻOku fakafofongaʻi ʻa e ngaahi tuʻunga ko ʻeni ʻe he kouti IP pea hoko atu ai mo ha mataʻifika ʻe ua pea taimi ʻe niʻihi ʻoku ʻi ai mo ha ngaahi mataʻitohi kehe. ʻOku fakahaaʻi ʻe he fika ʻuluaki ʻa e tuʻunga ʻo e maluʻi mei he ngaahi meʻa fefeka, pea ko hono uá ki he vaí. Hange ko ʻeni, ʻOku ʻomi ʻe ha IP54 ha tuʻunga pau ʻo e maluʻi mei he solids mo e huhuʻa. GB4208-2008 fakafaʻahinga maluʻi mei he solids ki 6 ngaahi tuʻunga mo e vai ki he 8 tuʻunga.
Ko e taimi ʻoku aʻu ai ki he ngaahi puha:
ʻI he ngaahi konga ʻoku ʻasi ai e moʻui, ʻOku fie maʻu ha IP54 siʻisiʻi taha.
Mo insulated ngaahi konga ʻo e moʻui ʻi loto, ʻOku totonu foki ke ʻoua naʻa toe siʻi hifo ʻi he IP54.
| Tuʻunga efú | Ngaahi ʻulungaanga ʻo e ngaahi meʻa muli fefeka | Ngaahi ʻulungaanga ʻo e ngaahi meʻa muli fefeka |
|---|---|---|
| Kiʻi Fakamatala Nounou | ʻUhinga | |
| 0 | ʻIkai maluʻi | |
| 1 | Fakaʻehiʻehi mei he ngaahi meʻa muli ʻoku fefeka mo ha inisi honau matolu ʻo ʻikai siʻi hifo ʻi he 50mm | Kuo pau ke ʻoua naʻa fakahu kakato ʻe he 50mm spherical ʻa e meʻangaue ki hono siviʻi ʻo e inisi honau matolu |
| 2 | Fakaʻehiʻehi mei he ngaahi meʻa muli ʻoku fefeka mo ha inisi honau matolu ʻo ʻikai siʻi hifo ʻi he 12.5 MM | Kuo pau ke ʻoua naʻa hu kakato ʻa e 12.5 MM spherical ki he sivi mo ha inisi honau matolu ʻo e hiva |
| 3 | Fakaʻehiʻehi mei he ngaahi meʻa muli ʻoku fefeka mo ha inisi honau matolu ʻo ʻikai siʻi hifo ʻi he 2.5 MM | Kuo pau ke ʻoua naʻa fakahu kakato ʻe he 2.5 MM spherical ʻa e meʻangaue ki hono siviʻi ʻo e inisi honau matolu |
| 4 | Fakaʻehiʻehi mei he ngaahi meʻa muli ʻoku fefeka mo ha inisi honau matolu ʻo ʻikai siʻi hifo ʻi he 1.0 MM | Kuo pau ke ʻoua naʻa fakahu kakato ʻe he 1.0 MM spherical ʻa e meʻangaue ki hono siviʻi ʻo e inisi honau matolu |
| 5 | Fakaʻehiʻehi mei he efu | |
| 6 | Efu density |
| Maaka ʻoku ʻikai ke ʻi ai ha | Maaka ʻoku ʻikai ke ʻi ai ha | Maaka ʻoku ʻikai ke ʻi ai ha |
|---|---|---|
| 0 | ʻIkai ha maluʻi | |
| 1 | Fakaʻehiʻehi mei he pipiponu ʻa e vai ʻi | ʻOku ʻikai totonu ke ʻi ai ha ola fakatuʻutamaki ʻo e pipiponu ʻi he meʻangaue fakaʻuhila |
| 2 | Fakaʻehiʻehi mei he pipiponu ʻa e vai ʻi he feituʻu ʻi ʻolunga ʻi he taimi ʻoku ʻi ai ha ngaahi 15 ° mei he feituʻu taupotu ki ʻolunga | ʻI he taimi ʻoku mapelu ai ʻa e tafaʻaki ki ʻolunga ʻo e hiva ʻi ha tuliki ki ʻolunga ʻo e 15 °, ʻOku ʻikai totonu ke ʻi ai ha ola fakatuʻutamaki ʻo e pipiponu ʻo e vai ʻi he meʻangaue fakaʻuhila |
| 3 | Maluʻi ʻo e ʻuha | ʻI he taimi ʻoku mapelu ai ʻa e tafaʻaki ki ʻolunga ʻo e hiva ʻi ha tuliki ki ʻolunga ʻo e 60 °, ʻOku ʻikai totonu ke ʻi ai ha ola fakatuʻutamaki ʻo e ʻuha ʻi he meʻangaue fakaʻuhila |
| 4 | ʻOku tala ʻe he kau fakafepaki ʻa e vai | ʻI he taimi splashing vai ʻi he ngaahi feituʻu kotoa pe ʻo e hiva, ʻoku ʻikai totonu ke ʻi ai hano nunuʻa fakatuʻutāmaki ʻo e meʻangāue fakaʻuhilá |
| 5 | Fakaʻehiʻehi mei he fana vai | ʻI he taimi ʻoku lotu ai ki he vai ʻi he ngaahi feituʻu kotoa pe ʻo e hiva, ʻoku ʻikai totonu ke ʻi ai hano nunuʻa fakatuʻutāmaki ʻo e meʻangāue fakaʻuhilá |
| 6 | Fana vai malohi | ʻI he taimi ʻoku lotu ai ki ha vai malohi ʻi he ngaahi feituʻu kotoa pe ʻo e hiva, ʻOku ʻikai totonu ke ʻi ai ha ola fakatuʻutamaki ʻo e lotu vai malohi ʻi he meʻangaue fakaʻuhila |
| 7 | Fakaʻehiʻehi mei he fakauku taimi nounou | ʻI he taimi ʻoku fakauku ai ʻa e hiva ʻi he vai ʻi he malohi pau ʻi ha vahaʻataimi pau, he ʻikai aʻu e lahi ʻo e vai ʻoku hu ki he hiva ki ha tuʻunga fakatuʻutamaki |
| 8 | Fakaʻehiʻehi mei he hokohoko atu e faiʻanga tulihopo | Fakatatau ki he ngaahi tuʻunga naʻe felotoi ki ai ʻa e tokotaha ngaohi kapeti mo e tokotaha fakaʻaongaʻi, he ʻikai aʻu ʻa e lahi ʻo e vai ʻoku hu ki he hiva ki ha tuʻunga fakatuʻutamaki hili ʻa e hokohoko atu submergence ki he vai |
Ki hono fakahaaʻi:
ʻOku ou ngaue ʻi he kalasi, siʻisiʻi taha ʻo e IP54 (ki he ngaahi konga ʻoku ʻikai emitting moʻui) pe IP44 (ki insulated ngaahi konga ʻo e moʻui) ʻoku fie maʻu.
Ki he meʻangaue ʻa e kalasi II, ʻOku ʻikai totonu ke siʻi hifo ʻa e faʻahinga ʻi he IP44, tatau ai pe pe ko e ha e faʻahinga konga ʻi loto.
Kapau ʻoku ʻi ai ha ngaahi meʻangaue fakaʻuhila ʻoku malu intrinsically malu circuits pe systems, ʻOku totonu ke fokotuʻutuʻu mavahevahe ʻeni mei he ʻikai intrinsically malu circuits. Kuo pau ke tuʻu ʻa e circuits ʻoku ʻikai intrinsically malu ʻi ha loki ʻoku ʻi ai ha kalasi IP30, fakaʻilongaʻi ʻaki ha fakatokanga: “ʻOua naʻa fakaava lolotonga hoʻo fakamisini!”
ʻOku mahuʻinga ʻa e ngaahi meʻangaue fakaʻuhila ki hono maluʻi ʻo e ngaahi meʻa fakaʻuhila mei tuʻa pea fakapapauʻi ʻoku kei tuʻu maʻu pe ʻa e ʻaofi maluʻi mei ʻo e circuitry, ko ia ko e foʻi lea “fakalahi e ngaahi meʻa ʻoku malu.”