Shenhai e fakamoʻoni fakaʻauha
Tau kamata ʻaki hano fakamatalaʻi e ngaahi fakamoʻoni kehekehe ʻo e fakaʻauha, ko e meʻa ʻoku nau fakahā maí, mo e founga ke fili ai kinautolu ʻi hono fakahoko, fakaʻaongaʻi ʻo e ngaahi puha tufakiʻanga naunau ko ha sipinga.
| Kulupu kasa/kulupu mafana | T1 | T2 | T3 | T4 | T5 | T6 |
|---|---|---|---|---|---|---|
| IIA | Formaldehyde, Maʻuʻanga Fakamatala, methyl ester, acetylene, kasa, ongo ʻo e leʻo, ʻesiti ʻakeliliki, benzene, styrene, kaponi kaponi, ethyl acetate, acetic ʻesiti, chlorobenzene, methyl acetate, Maʻuʻanga Fakamatala | Methanol, ethanol, ethylbenzene, fakaʻofoʻofa, propylene, butanol, butyl acetate, amyl acetate, cyclopentane | Pentane, pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, naphtha, lolo fokotuʻu (kau ai ʻa e penisini), lolo penisini, pentanol tetrachloride | Acetaldehyde, trimethylamine | Ethyl nitrite | |
| IIB | Propylene ester, dimethyl ʻEta | Butadiene, epoxy kasa, ethylene | Dimethyl ʻEta, acrolein, fakapaaki ʻo e carbide | |||
| IIC | Fakapaaki ʻo e, kasa vaí | Acetylene | Kaponi disulfide | Ethyl naituleiti |
Fakaʻilongaʻi ʻo e tohi fakamoʻ:
ʻEke d IIB T4 Gb/ʻeke tD A21 IP65 T130 ° c ko ha tohi fakamoʻoni fakamamani lahi ia ki he kasa mo e efu, ʻi he feituʻu ʻoku ʻi ai e konga kimuʻa he slash (/) fakahaaʻi ʻa e tuʻunga ʻo e fakamoʻoni kasa, pea ʻoku fakahaaʻi ʻe he konga hili ʻa e slash ʻa e fakamoʻoni ʻo e efu.
ʻEke: Fakaʻilongaʻi ʻo e fakamoʻoni fakaʻauha, ʻa e founga angamaheni ʻo e IEC (Tuʻutuʻuni fakavahaʻapuleʻanga ʻo e Wildertechnical) fakafuofuaʻi ʻo e fakamoʻoni fakaʻauha.
d: Flameproof taipeʻi, ʻOku flameproof ʻa hono fakahaaʻi ʻo e tefitoʻi founga maluʻi ʻo e fakaʻauha.
IIB: ʻOku ne fakafofongaʻi ʻa e maluʻi ʻo e kasa ʻa e kalasi.
T4: Fakahaaʻi ʻa e mafana ʻo e ʻea kalasi.
Gb: Fakahaaʻi ʻoku feʻunga ʻa e koloa ko ʻeni ki he Zone 1 maluʻi ʻo e fakaʻauha.
Ki he fakaʻauha e efu konga ʻi he konga kimui ni, ʻOku feʻunga ke aʻusia ʻa e maaka maluʻi maʻolunga taha ʻo e efu 6 makatuʻunga ʻi he ngaahi tuʻunga moʻui ʻo e fakamoʻoni kasa.
tD: ʻOku ne fakafofongaʻi ʻa e faʻahinga maluʻi ʻoku ʻi ai (fakaʻehiʻehi mei he ignition efu ʻaki e).
A21: Fakahaaʻi ʻa e feituʻu ʻoku kaunga ki ai, feʻunga mo e souni 21, Fakasouni 22.
IP65: ʻOku ne fakafofongaʻi ʻa e maaka maluʻi.
ʻOku mahuʻinga ke fili ʻa e faʻahinga fakamoʻoni totonu ʻi he ngaahi ʻatakai totonu.
ʻUluaki, ʻoku mahuʻinga ke mahino ha tefitoʻi faʻahinga ʻe ua, hangē ko hono fakamatalaʻi ʻi laló:
Faʻahinga ʻo e fakamoʻoni fakaʻauha:
Kalasi ʻoku ou: Meʻangaue fakaʻuhila ki he keliʻanga malala ʻi lalofonua;
Kalasi II: Meʻangāue fakaʻuhila maʻá e niʻihi keh fakafepakiʻi ngaahi ʻatakai kasa tuku kehe pe ʻa e keliʻanga malala mo lalofonua.
ʻE lava ke vahevahe ʻa e kalasi II ki he IIA, IIB, mo e IIC, ʻa ia ʻe lava ke fakaʻaongaʻi ai ʻa e meʻangaue ʻoku fakaʻilongaʻi IIB ʻi he ngaahi tuʻunga ʻoku feʻunga mo e ngaahi meʻangaue IIA; ʻE lava ke fakaʻaongaʻi ʻa e IIC ʻi he ngaahi tuʻunga ʻoku feʻunga mo e IIA mo e IIB fakatouʻosi.
Kalasi III: Meʻangaue fakaʻuhila ki he ngaahi ʻatakai ʻo e efu kehe mei he keliʻanga malala.
IIIA: Combustible puna; IIIB: Efu ʻoku ʻikai conductive; IIIC: Conductive efu.
Ngaahi feituʻu ʻoku fakamoʻoniʻi ai e fakaʻauha:
Fakasouni 0: ʻI he feituʻu ʻoku ʻi ai maʻu pe ʻa e ngaahi kasa; hokohoko atu e fakatuʻutamaki ʻo laka hake ʻi he 1000 houa/taʻu;
Fakasouni 1: Feituʻu velangofua ʻe lava ke hoko e ngaahi kasa lolotonga e tafa angamaheni; intermittently fakatuʻutamaki ki he 10 ki he 1000 houa/taʻu;
Fakasouni 2: ʻI he feituʻu ʻoku ʻikai faʻa ʻi ai ha ngaahi kasa velangofua pea, kapau ʻe hoko, ʻOku ngalingali ʻe tatataha mo taimi nounou; meʻaʻofa fakatuʻutamaki ki he 0.1 ki he 10 houa/taʻu.
ʻOku mahuʻinga ke fakatokangaʻi ʻoku tau fehangahangai mo e kalasi II mo e III, Fakasouni 1, Fakasouni 2; Fakasouni 21, Fakasouni 22.
ʻI he angamahení, ʻOku feʻunga pe ʻa e aʻu ki he IIB ki he ngaahi kasa, ka ki he fakapaaki ʻo e ʻo e, acetylene, mo e kaponi disulfide, fie maʻu ha tuʻunga maʻolunga ange ʻo e IIC. Ki he maluʻi ʻo e efu, aʻusia pe ʻa e kasa ʻoku fekauʻaki mo ia tuʻunga ʻo e fakamoʻoni fakaʻauha pea mo e maaka efu maʻolunga taha.
ʻOku ʻi ai foki mo ha faʻahinga fakatahaʻi ʻo e puha tufakiʻanga naunau ki he fakaʻauha faʻahinga: ExdeIIBT4Gb.