Shenhai Ho phatloha-Bopaki
Hlalosa
Tekanyetso ea ts'ireletso ea ho phatloha, boemo ba mocheso, mofuta oa tšireletso ea ho phatloha, le ho tšoaea sebaka se sebetsang ke lintlha tsa bohlokoa bakeng sa ho lekola lisebelisoa tsa motlakase tse sa phatloheng. Boitsebiso bona bo sebelisetsoa ho hlalosa boemo ba tšireletso khahlanong le ho phatloha, mocheso oa mocheso oo thepa e ka sebetsang ho oona ka mokhoa o sireletsehileng, mofuta wa tshireletso ya ho qhoma e fanoeng, le libaka tse khethiloeng moo thepa e loketseng.
Ho nka mohlala oa Ex IIC T6 GB e le mohlala
EX
Letšoao lena le bontša hore lisebelisoa tsa motlakase li kopana le mofuta o le mong kapa ho feta tse thibelang ho phatloha ho latela maemo a thibelang ho phatloha.;
Ho ea ka litlhaloso tse hlalositsoeng ho Article 29 ea maemo a GB3836.1-2010, ke tlhokahalo bakeng sa lisebelisoa tsa motlakase tse thibelang ho phatloha ho jara tse ikhethang “Ex” ho tshwaya boemong bo hlahelletseng mmeleng wa yona o kantle. Ho phaella moo, letlapa la lebitso la sesebelisoa le tlameha ho bonts'a letšoao le hlokahalang la bopaki ba ho phatloha hammoho le nomoro ea setifikeiti e netefatsang hore
tumellano.
Demb
Mofuta o bonts'itsoeng oa ts'ireletso ea ho phatloha oa lisebelisoa tsa motlakase tse thibelang ho phatloha o etsa qeto e tobileng qhoma sebaka sa kotsi seo e etselitsoeng sona.
Mofuta oa bopaki ba ho phatloha
| Mofuta oa bopaki ba ho phatloha | Letšoao la mofuta oa bopaki ba ho phatloha | Lintlha |
|---|---|---|
| Mofuta oa flameproof | d | |
| Keketseho ea mofuta oa polokeho | e | |
| Kgatello ya maikutlo | leq | |
| Mofuta o bolokehileng ka hare | ia | |
| Mofuta o bolokehileng ka hare | ib | |
| Mofuta oa tlhaselo ea oli | o | |
| Mofuta oa ho tlatsa lehlabathe | q | |
| Mofuta oa ho tiisa ka likhomaretsi | m | |
| N-Mofuta | n | Maemo a ts'ireletso a arotsoe joalo ka MA le MB. |
| Mofuta o khethehileng | s | Sehlopha se akaretsa nA, nR, le mefuta ea n-concave |
Hlokomela: Tafole e bonts'a mefuta e atileng ea ts'ireletso ea ho phatloha bakeng sa lisebelisoa tsa motlakase, e hlahisa motsoako oa mekhoa e fapaneng ea ts'ireletso ea ho phatloha ho theha mefuta e fapaneng ea ts'ireletso ea ho phatloha.
Mohlala, lebitso “Ex demb” e bolela mofuta oa ts'ireletso ea ho phatloha ha lebasetere bakeng sa lisebelisoa tsa motlakase, kenyeletsang e thibelang mollo, tshireletso e eketsehileng, le mekhoa ea encapsulation.
Ho hlophisoa ha libaka libakeng tse kotsing ea ho phatloha ha khase:
Libakeng tseo likhase tse phatlohang le e ka chang mouoane o kopana le moea ho etsa metsoako ea khase e phatlohang, lihlopha tse tharo tsa libaka tse thehiloeng boemong ba kotsi li thehoa:
Sebaka 0 (e bitsoa Zone 0): Sebaka seo ho sona ho kopanang khase e phatlohang ka nako e telele, kgafetsa, kapa ho ba teng ka mehla tlasa maemo a tlwaelehileng.
Sebaka 1 (e bitsoa Zone 1): Sebaka seo ho sona metsoako ea khase e phatlohang e ka hlahang tlas'a maemo a tloaelehileng.
Sebaka 2 (e bitsoa Zone 2): Sebaka seo ho sona ho sa lebelloang hore metsoako ea khase e phatlohang e etsahale tlas'a maemo a tloaelehileng, empa e ka hlaha nakoana feela nakong ea liketsahalo tse sa tloaelehang.
Hlokomela: Maemo a tloaelehileng a bolela ho qala kamehla, koala, ts'ebetso, le tlhokomelo ea thepa, athe maemo a sa tloaelehang a amana le ho se sebetse hantle ha thepa kapa
diketso tse sa lebelloang.
Khokahano lipakeng tsa libaka tse kotsing ea ho phatloha ha khase le mefuta ea tsona ea ts'ireletso ea ho phatloha.
| Sehlopha sa khase | Lekhalo le phahameng la polokeho ea liteko MESG (mm) | Bonyane karo-karolelano ea hona joale ea ho tima MICR |
|---|---|---|
| IIA | MESG≥0.9 | MICR ~0.8 |
| IIB | 0.9＞MESG＞0.5 | 0.8≥MICR≥0.45 |
| IIC | 0.5≥MESG | 0.45Setšoantšo sa MICR |
Hlokomela: Ho nahanoa ka maemo a khethehileng naheng ea rona, tšebeliso ea mofuta oa elektronike (tshireletso e eketsehileng) lisebelisoa tsa motlakase li fumaneha Zone feela 1, lumella bakeng sa:
Mabokose a likhoele le mabokose a mateano a sa hlahiseng litlhase, arcs, kapa mocheso o kotsi nakong ea ts'ebetso e tloaelehileng e khetholloa e le mefuta ea d kapa m bakeng sa 'mele le mofuta oa e bakeng sa karolo ea wiring.
Mohlala, lebitso la ts'ireletso ea ho phatloha ha lebone la sethala sa ho phatloha ha BPC8765 LED ke Ex demb IIC T6 GB. Sebaka sa mohloli oa leseli ha se chese (d), karolo ea potoloho ea mokhanni e kentsoe (mb), le likarolo tsa komporo ea wiring tshireletso e eketsehileng (e) bakeng sa kaho e thibelang ho phatloha. Ho ea ka litlhaloso tse boletsoeng ka holimo, leseli lena le ka sebelisoa Zone 1.
II
Sehlopha sa lisebelisoa tsa sesebelisoa sa motlakase se thibelang ho phatloha se etsa qeto ea hore na se loketse libaka tse itseng tsa khase e phatlohang.
Thepa e thibelang ho phatloha e hlalosoa e le lisebelisoa tsa motlakase tse, tlasa maemo a boletsweng, u se ke ua hotetsa tikoloho e phatlohang e potolohileng.
Kahoo, lihlahisoa tse ngotsoeng ka mabitso a boletsoeng ka holimo a thibelang ho phatloha (EX demb IIC) li loketse feela libaka tsohle tsa khase e phatlohang, ntle le merafo ea mashala le libaka tse ka tlas'a lefatše.
C
Sehlopha sa khase sa sesebelisoa sa motlakase se thibelang ho phatloha se etsa qeto ea ho lumellana ha sona le metsoako e itseng ea khase e phatlohang..
Tlhaloso ea Sehlopha sa Khase:
Libakeng tsohle tsa khase e phatlohang, ntle le merafo ea mashala le libaka tse ka tlas'a lefatše (i.e., libaka tse loketseng lisebelisoa tsa motlakase tsa Sehlopha sa II), likhase tse phatlohang li arotsoe ka lihlopha tse tharo, e leng A, B, le C, ho ipapisitsoe le sekheo se phahameng sa liteko sa polokeho kapa karo-karolelano e fokolang ea hona joale ea motsoako oa khase. Sehlopha sa khase le mocheso oa mollo li itšetlehile ka bongata ba khase e tukang le moea tlas'a mocheso o itseng oa tikoloho le maemo a khatello.
Kamano pakeng tsa metsoako ea khase e phatlohang, lihlopha tsa khase, le likheo tse phahameng ka ho fetisisa tsa liteko tsa tšireletso kapa litekanyo tse fokolang tsa hona joale tsa ho tima:
| Sehlopha sa khase | Lekhalo le phahameng la polokeho ea liteko MESG (mm) | Bonyane karo-karolelano ea hona joale ea ho tima MICR |
|---|---|---|
| IIA | MESG≥0.9 | MICR ~0.8 |
| IIB | 0.9＞MESG＞0.5 | 0.8≥MICR≥0.45 |
| IIC | 0.5≥MESG | 0.45Setšoantšo sa MICR |
Hlokomela: Tafole e ka letsohong le letšehali e bontša hore litekanyetso tse nyane tsa likheo tsa ts'ireletso ea khase e phatlohileng kapa litekanyo tse tlase tsa hajoale li lumellana le maemo a phahameng a kotsi a amanang le likhase tse phatlohang.. Kahoo, ho na le tlhokahalo e ntseng e eketseha ea litlhoko tse thata tsa lihlopha tsa khase lisebelisoa tsa motlakase tse thibelang ho phatloha.
Lihlopha tsa khase hangata li amahanngoa le likhase tse phatlohang tse tloaelehileng:
| Sehlopha sa khase/sehlopha sa mocheso | T1 | T2 | T3 | T4 | T5 | T6 |
|---|---|---|---|---|---|---|
| IIA | Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, asiti ea acrylic, benzene, styrene, carbon monoxide, ethyl acetate, asiti ea acetic, chlorobenzene, methyl acetate, chlorine | Methanol, ethanol, ethylbenzene, propanol, propylene, butanol, butyl acetate, amyl acetate, cyclopentane | Pentane, pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, naphtha, petroleum (ho akarelletsa le peterole), oli ea mafura, pentanol tetrachloride | Acetaldehyde, trimethylamine | Ethyl nitrite | |
| IIB | Ester ea propylene, dimethyl ether | Butadiene, epoxy propane, ethylene | Dimethyl ether, acrolein, hydrogen carbide | |||
| IIC | Haedrojene, khase ea metsi | Acetylene | Carbon disulfide | Ethyl nitrate |
Mohlala: Tabeng eo lintho tse kotsi tse teng tikolohong ea khase e phatlohang ke hydrogen kapa acetylene, sehlopha sa khase se abetsoeng tikolohong ena se arotsoe ka sehlopha sa C. Ka lebaka leo, lisebelisoa tsa motlakase tse sebelisoang sebakeng sena li lokela ho latela lintlha tsa sehlopha sa khase tse seng ka tlase ho boemo ba IIC..
Tabeng eo ntho e teng tikolohong ea khase e phatlohang ke formaldehyde, sehlopha sa khase se etselitsoeng tikoloho ena se khetholloa e le sehlopha sa A. Ka lebaka leo, lisebelisoa tsa motlakase tse sebelisitsoeng sebakeng sena li lokela ho latela lintlha tsa sehlopha sa khase bonyane boemo ba IIA. Leha ho le joalo, lisebelisoa tsa motlakase tse nang le maemo a sehlopha sa khase tsa IIB kapa IIC le tsona li ka sebelisoa tikolohong ena.
T6
The mocheso sehlopha se abetsoeng sesebelisoa sa motlakase se thibelang ho phatloha se etsa qeto ea tikoloho ea khase eo e lumellanang le eona ho latela mocheso o tukang..
Sehlopha sa mocheso se hlalosoa ka tsela e latelang:
Meeli ea mocheso, ho thoeng ke mocheso o tukang, e teng bakeng sa metsoako ea khase e phatlohang, ho hlalosa mocheso oo li ka bang teng hotelitsoe. Ka lebaka leo, litlhoko tse khethehileng li laola mocheso oa holim'a lisebelisoa tsa motlakase tse sebelisoang ka har'a libaka tsena, ho hloka hore mocheso o phahameng oa holim'a lisebelisoa o se ke oa feta mocheso o tukang. Ka hona, thepa ea motlakase e arotsoe ka lihlopha tse tšeletseng, T1-T6, ho itšetlehile ka mocheso oa tsona o phahameng ka ho fetisisa oa holim'a metsi.
| Mocheso oa mocheso oa lintho tse tukang | Mocheso o phahameng oa mocheso oa T oa lisebelisoa (℃) | Sehlopha sa mocheso |
|---|---|---|
| t＞450 | 450 | T1 |
| 450≥t＞300 | 300 | T2 |
| 300≥t＞200 | 200 | T3 |
| 200≥t＞135 | 135 | T4 |
| 135≥t＞100 | 100 | T5 |
| 100≥t＞85 | 85 | T6 |
E ipapisitse le lintlha tse fanoeng tafoleng e ka letsohong le letšehali, kamano e hlakileng e ka bonoa lipakeng tsa mocheso o tukang oa lintho tse tukang le litlhoko tse tsamaellanang tsa sehlopha sa mocheso bakeng sa lisebelisoa tsa motlakase tse thibelang ho phatloha.. Ka ho toba, ha mocheso o tukang o fokotseha, litlhoko tsa sehlopha sa mocheso bakeng sa lisebelisoa tsa motlakase lia eketseha.
Sehlopha sa mocheso se tsamaisana le likhase/lintho tse qhomang tse atisang ho kopana le tsona:
| Sehlopha sa khase/sehlopha sa mocheso | T1 | T2 | T3 | T4 | T5 | T6 |
|---|---|---|---|---|---|---|
| IIA | Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, asiti ea acrylic, benzene, styrene, carbon monoxide, ethyl acetate, asiti ea acetic, chlorobenzene, methyl acetate, chlorine | Methanol, ethanol, ethylbenzene, propanol, propylene, butanol, butyl acetate, amyl acetate, cyclopentane | Pentane, pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, naphtha, petroleum (ho akarelletsa le peterole), oli ea mafura, pentanol tetrachloride | Acetaldehyde, trimethylamine | Ethyl nitrite | |
| IIB | Ester ea propylene, dimethyl ether | Butadiene, epoxy propane, ethylene | Dimethyl ether, acrolein, hydrogen carbide | |||
| IIC | Haedrojene, khase ea metsi | Acetylene | Carbon disulfide | Ethyl nitrate |
Hlokomela: Lintlha tse fanoeng tafoleng e ka holimo ke tsa merero ea litšupiso feela. Ka kopo sheba lintlha tse qaqileng tse boletsoeng ho GB3836 bakeng sa kopo e nepahetseng.
Mohlala: Haeba carbon disulfide ke ntho e kotsi tikolohong ea khase e phatlohang, e lumellana le sehlopha sa mocheso T5. Ka lebaka leo, sehlopha sa mocheso oa lisebelisoa tsa motlakase tse sebelisoang tikolohong ena e lokela ho ba T5 kapa ho feta. Ka ho tšoanang, haeba formaldehyde e le ntho e kotsi tikolohong ea khase e phatlohang, e lumellana le sehlopha sa mocheso T2. Ka hona, sehlopha sa mocheso oa lisebelisoa tsa motlakase tse sebelisoang tikolohong ena e lokela ho ba T2 kapa ho feta. Ke habohlokoa ho bolela hore lisebelisoa tsa motlakase tse nang le lihlopha tsa mocheso oa T3 kapa T4 li ka boela tsa sebelisoa sebakeng sena.
GB
Boemo ba ts'ireletso ea lisebelisoa bo bolela boemo ba tšireletso bakeng sa lisebelisoa tsa motlakase tse thibelang ho phatloha, e bontshang tekanyo ya polokeho ya thepa.
Litlhaloso tsa boemo ba ts'ireletso ea lisebelisoa bakeng sa tikoloho ea khase e phatlohang li fanoe karolong 3.18.3, 3.18.4, le 3.18.5 ea GB3836.1-2010.
3.18.3
Ga Level EPL Ga
Thepa e reretsoeng libaka tsa khase e phatlohang likarolo tse “hodimo” boemo ba tshireletso, ho etsa bonnete ba hore ha e sebetse e le mohloli oa mollo nakong ea ts'ebetso e tloaelehileng, liphoso tse lebelletsoeng, kapa ho se sebetse hantle ho ikhethang.
3.18.4
Boemo ba Gb EPL Gb
Thepa e reretsoeng libaka tsa khase e phatlohang e na le a “hodimo” boemo ba tshireletso, ho netefatsa hore ha e sebetse e le mohloli oa ho tima nakong ea ts'ebetso e tloaelehileng kapa maemo a lebelloang a phoso.
3.18.5
Boemo ba Gc EPL Gc
Thepa e reretsoeng ho sebelisoa libakeng tsa khase e phatlohang e bontša a “kakaretso” boemo ba ts'ireletso mme ha e sebetse joalo ka mohloli oa mollo nakong ea ts'ebetso e tloaelehileng. Mehato ea tlatsetso ea ts'ireletso le eona e ka kengoa ts'ebetsong ho netefatsa hore ha e chese hantle maemong ao ho lebelletsoeng hore mehloli ea ho tima e tla etsahala khafetsa., joalo ka tabeng ea ho se sebetse hantle ha lisebelisoa tsa mabone.