Cov qauv tsim nyog hauv tebchaws thiab IEC muajkev cairau cov cim, kev tiv thaiv kev poob siab, cov qauv, kev ua haujlwm hluav taws xob, kev ua haujlwm zoo, thiab lwm yam ntawm cov ntsaws ruaj ruaj thiab cov khoom siv rau tsev neeg thiab cov hom phiaj zoo sib xws.Cov hauv qab no yog cov qauv tshuaj xyuas thiab cov txheej txheem rau cov ntsaws thiab qhov (sockets).
Plug thiab qhov (socket) soj ntsuam
1. Kev tshuaj xyuas qhov tshwm sim
2. Dimensional soj ntsuam
3. Kev tiv thaiv hluav taws xob poob siab
4. Kev ntsuas av
5. Terminals thiab Headers
6. Cov qauv ntawm lub qhov (socket).
7. Kev laus-resistant thiab noo noo-pov thawj
8. Rwb thaiv tsev tsis kam thiab hluav taws xob muaj zog
9. Kub nce
10. Lub peev xwm tawg
11. Kev ua haujlwm li qub (kev sim lub neej)
12. Lub zog rub tawm
13. Mechanical zog
14. Kev ntsuas kub ua haujlwm
15. Cov ntsia hlau, cov khoom nqa tam sim no thiab lawv cov kev sib txuas
16. Creepage nrug, hluav taws xob clearance, nkag mus rau rwb thaiv tsev sealing nrug
17. Tsis zoo li kub tsis kam thiab nplaim tsis kam ntawm cov ntaub ntawv insulating
18. Anti-xeb kev ua tau zoo
1. Kev tshuaj xyuas qhov tshwm sim
1.1 Cov khoom tseem ceeb ntawm cov khoom yuav tsum muaj cov cim hauv qab no:
-Rated tam sim no (amps)
-Rated voltage (volts)
- Lub zog muab lub cim;
-Lub npe, cov cim lag luam lossis cov cim cim ntawm cov chaw tsim khoom lossis tus muag khoom;
- Cov khoom naj npawb
- Daim ntawv pov thawj
1.2 Cov cim raug yuav tsum tau siv rau ntawm cov khoom:
1.3 Rau cov ntsaws ruaj ruaj, cov cim hauv qab no yuav tsum raug cim rau ntawm cov khoom tseem ceeb:
-Rated tam sim no, ntsuas qhov hluav taws xob thiab cov khoom siv hluav taws xob;
-Lub npe lossis cov cim lag luam lossis cov cim cim ntawm cov chaw tsim khoom lossis tus muag khoom;
-Qhov ntev ntawm cov rwb thaiv tsev uas yuav tsum tau muab tshem tawm ua ntej tus neeg xyuas pib tau muab tso rau hauv lub qhov rooj tsis muaj qhov ntsuas (yog tias muaj);
- Yog tias lub qhov (socket) tsuas yog tsim nyog rau kev sib txuas cov xov hlau nyuaj, yuav tsum muaj lub cim qhia tias lub qhov rooj tsis muaj qhov txuas tsuas yog tsim nyog rau kev sib txuas cov xov hlau nyuaj;
- Tus lej qauv, uas tuaj yeem yog tus lej catalog.
1.4 Kev pom zoo: Qhov saum npoo ntawm lub qhov (socket) yuav tsum du, lub plhaub yuav tsum zoo ib yam, thiab yuav tsum tsis muaj qhov pores, tawg, indentations, pob, puas, me ntsis, los yog av;cov hlau qhov chaw yuav tsum tsis muaj oxidation, xeb me ntsis, deformation, av, thiab txheej yuav tsum zoo ib yam thiab kaj.
1.5 Ntim: Lub npe khoom, specifications, khoom code, Hoobkas lub npe, kom muaj nuj nqis, thiab ntau lawm batch naj npawb yuav tsum tau cim rau ntawm lub thawv ntim.
2. Dimensional soj ntsuam
2.1 Lub qhov (socket) yuav tsum tau muab tso thiab unplugged 10 zaug nrog lub ntsaws uas muaj tus pin loj tshaj plaws uas ua tau raws li qhov yuav tsum tau ua ntawm tus qauv sib xws.Qhov loj ntawm tus pin yog kuaj los ntawm kev ntsuas los yog siv lub ntsuas ntsuas.
2.2 Nyob rau hauv ib tug muab system, lub plug yuav tsum tsis mates nrog cov nram qab no socket-outlets:
-Sockets nrog cov kev ntsuas hluav taws xob ntau dua lossis qis dua tam sim no;
- Cov qhov (socket) nrog cov xov tooj sib txawv ntawm cov electrodes;
3. Protection tiv thaiv hluav taws xob poob siab
3.1 Thaum lub ntsaws ntsaws ntsaws rau hauv lub qhov (socket), qhov chaw nyob ntawm lub ntsaws yuav tsum siv tsis tau.Xyuas seb nws puas tsim nyog los ntawm kev tshuaj xyuas.Tsau lub qhov (socket-outlets), mated plugs thiab portable socket-outlets yuav tsum yog li tsim thiab tsim, thaum ntsia los yog wired rau ib txwm siv, nyob qhov chaw yuav siv tsis tau txawm tias tom qab tshem tawm ntawm cov khoom uas siv tau yam tsis muaj cuab yeej.Tib yam mus rau qhov chaw uas tuaj yeem raug tshem tawm.
3.2 Thaum cov khoom siv hluav taws xob raug xaim thiab teeb tsa raws li kev siv ib txwm siv, lawv tseem tuaj yeem siv tau qhov chaw, tshwj tsis yog cov ntsia hlau me me thiab cov khoom zoo sib xws siv los kho cov ntsiab lus tseem ceeb thiab cov npog thiab npog ntawm lub qhov (socket), uas yog cais los ntawm cov nyob. ntu.Lawv yuav tsum tau ua los ntawm cov ntaub ntawv insulating.khoom.
3.3 Ib tus pin ntawm lub ntsaws yuav tsis tuaj yeem ua phooj ywg nrog lub qhov (socket) nyob ntawm lub qhov (socket) thaum muaj lwm tus pin nyob rau hauv lub xeev nkag tau.
3.4 Sab nraud ntawm lub ntsaws yuav tsum yog ua los ntawm cov khoom siv insulating.Qhov no tsis suav nrog cov khoom siv tau xws li cov ntsia hlau sib dhos, cov pins tam sim no, cov pins hauv av, cov kab hauv av, thiab cov nplhaib hlau nyob ib puag ncig cov pins.
3.5 Lub qhov (socket) nrog lub qhov rooj tiv thaiv, thaum lub ntsaws ntsaws yog rub tawm, lub qhov (socket) nyob tau tuaj yeem raug thaiv.
3.6 Lub tes tsho grounding ntawm lub qhov (socket) yuav tsum tsis txhob deformed nyob rau hauv ib txoj kev uas ua rau muaj kev phom sij rau kev nyab xeeb vim yog qhov ntsaws ntsaws.
3.7 Rau lub qhov (sockets) nrog kev tiv thaiv zoo dua, thaum ntsia thiab xaim raws li kev siv ib txwm siv, cov khoom nyob yuav tsum tsis siv tau nrog 1 hli txoj kab uas hla.Raws li qhia hauv qab no:
4. Kev ntsuas av
4.1 Thaum lub ntsaws ntsaws, tus pin hauv av yuav tsum txuas nrog lub qhov (socket) hauv av ua ntej, thiab tom qab ntawd tus pin nqa tam sim no yuav tsum muaj zog.Thaum lub ntsaws raug tshem tawm, tus pin nqa tam sim no yuav tsum tau txiav ua ntej tus pin hauv av disconnects.
4.2 - Lub dav hlau hauv av loj yuav tsum zoo ib yam li cov khoom siv hluav taws xob sib txuas.
- Lub ntiaj teb davhlau ya nyob twg ntawm rewirable hluav taws xob accessories nrog lub ntiaj teb hu yuav tsum nyob rau hauv.
- Lub ntiaj teb davhlau ya nyob twg ntawm lub qhov (socket) ruaj khov-qhov hluav taws xob yuav tsum tau kho rau lub hauv paus lossis rau ib qho khoom ruaj khov rau hauv lub hauv paus.
- Lub tes tsho hauv av ntawm lub qhov (socket) ruaj khov-qhov hluav taws xob yuav tsum tau kho rau hauv paus lossis rau lub hau.Yog tias kho rau lub hau npog, lub tes tsho hauv av yuav tsum tau txais thiab txhim khu kev qha txuas mus rau qhov chaw nres nkoj hauv av thaum lub hau npog yog nyob rau hauv nws txoj haujlwm qub.Kev sib cuag yuav tsum yog silver plated los yog yuav tsum muaj corrosion thiab hnav tsis kam tsawg dua nyiaj plated.
4.3 Nyob rau hauv cov sockets ruaj ruaj nrog lub qhov (socket) hauv av, cov khoom siv hlau siv tau uas yuav dhau los ua nyob thaum lub rwb thaiv tsev tsis ua haujlwm yuav tsum tau txuas mus tas li thiab ruaj ntseg txuas nrog lub davhlau ya nyob twg.
4.4 Ib lub qhov (socket) qhov hluav taws xob uas muaj tus lej IP siab dua IPXO thiab cov ntaub thaiv npog uas muaj ntau tshaj li ib lub cable nkag yuav tsum tau nruab nrog Internally tsau hauv av terminals, los yog muab qhov chaw txaus rau ntab terminals, tso cai nkag mus thiab tawm kev sib txuas los xyuas kom meej qhov txuas ntxiv. hauv av Circuit Court.
4.5 Qhov kev sib txuas ntawm cov av hauv av thiab cov khoom siv hlau nkag tau yooj yim yuav tsum yog qhov kev sib txuas tsis zoo, thiab qhov kev tiv thaiv yuav tsum tsis txhob siab dua 0.05Ω.
4.6 Tsau qhov hluav taws xob-qhov hluav taws xob tsim los muab lub zog hluav taws xob tiv thaiv hluav taws xob cuam tshuam thaum cov khoom siv uas lawv txuas nrog yuav tsum tau nruab nrog lub qhov (socket) hauv av thiab nws cov terminals yuav tsum tau muab hluav taws xob cais tawm los ntawm cov hlau txuas los yog los ntawm kev tiv thaiv lub ntiaj teb. txuas nrog lub system.hluav taws xob cais tawm los ntawm lwm qhov raug cov khoom siv hluav taws xob hauv Circuit Court.
5.Terminals thiab headers
5.1 Rewirable fixed socket-outlets yuav tsum tau nruab nrog screw-clamped terminals los yog screwless terminals.
5.2 Rewireable plugs thiab rewirable portable socket-outlets yuav tsum tau nruab nrog terminals nrog threaded clamping.
5.3 Yog tias siv cov hlua ua ntej soldering, nws yuav tsum tau muab sau tseg tias nyob rau hauv cov ntsia hlau-hom terminals, lub pre-soldered cheeb tsam yuav tsum tau sab nraum lub clamping cheeb tsam thaum txuas nrog ib txwm siv.
5.4 Txawm hais tias cov khoom siv los clamp cov conductors hauv lub davhlau ya nyob twg tuaj yeem siv los tswj lub davhlau ya nyob twg hauv qhov qub lossis tiv thaiv lub davhlau ya nyob twg los ntawm kev tig, lawv yuav tsum tsis txhob siv los kho lwm qhov chaw.
5.3 Xov clamp hom davhlau ya nyob twg
-Threaded clamping terminals yuav tsum muaj peev xwm txuas cov neeg xyuas tsis raug;
- Xov clamping terminals yuav tsum muaj cov neeg kho tshuab muaj zog txaus thiab yuav tsum tsis txhob ua los ntawm cov hlau mos lossis hlau uas nquag nkag mus;
- Xov clamping terminals yuav tsum tiv taus corrosion;xov clamping terminals yuav tsum tsis txhob ua rau cov neeg xyuas pib ua kom puas thaum clamping lawv;
-Threaded clamping terminals tuaj yeem khov kho tus neeg xyuas pib ntawm ob qhov chaw hlau;
-Thread clamping davhlau ya nyob twg, thaum zawm cov ntsia hlau los yog txiv ntseej, nws yog tsis yooj yim sua rau cov xov hlau ntawm ib tug nyuaj-core conductor los yog stranded conductor tawm los;
-Thread clamp hom terminals yuav tsum tau kho nyob rau hauv lub plug thiab lub qhov (socket) nyob rau hauv xws li ib tug txoj kev uas lub clamping screws los yog txiv ntseej tsis tuaj yeem nruj los yog loosened yam tsis ua rau lub davhlau ya nyob twg nws tus kheej loosen.
- Lub clamping screws thiab txiv ntseej ntawm av terminals ntawm cov xov-clamp hom yuav tsum tau muab xauv kom txaus kom tsis txhob muaj kev sib tsoo;thiab yuav tsum tsis muaj cuab yeej.
-Thread clamp hom ntiaj teb terminals yuav tsum yog xws li tias tsis muaj kev pheej hmoo ntawm corrosion tshwm sim los ntawm kev sib cuag ntawm cov khoom no thiab earthing tooj liab conductor los yog lwm yam hlau nyob rau hauv kev sib cuag nrog nws.
5.4 Screwless terminals rau sab nraud tooj liab conductors
- Screwless terminals tuaj yeem yog hom tsim nyog rau cov neeg siv tooj liab tawv, lossis hom haum rau ob qho tib si tawv thiab mos tooj liab conductors.
- Screwless terminals yuav tsum muaj peev xwm sib txuas cov conductors uas tsis tau npaj tshwj xeeb.
-Threadless terminals yuav tsum tau ruaj ntseg zoo rau lub qhov (socket).Screwless terminals yuav tsum tsis txhob xoob vim yog kev sib txuas lossis kev sib txuas ntawm cov neeg xyuas pib thaum lub sijhawm teeb tsa.
-Threadless terminals yuav tsum muaj peev xwm tiv taus cov neeg kho tshuab kev ntxhov siab tshwm sim thaum siv ib txwm.
-Threadless terminals yuav tsum muaj peev xwm tiv taus hluav taws xob thiab thermal stresses tshwm sim thaum siv ib txwm.
6.Cov qauv ntawm lub qhov (socket).
6.1 Cov khoom ntawm lub tes tsho lub tes tsho yuav tsum ua kom muaj zog txaus kom ntseeg tau tias muaj kev sib cuag txaus los tiv thaiv cov ntsaws ntsaws.
6.2 Qhov chaw ntawm lub qhov (socket) lub qhov hluav taws xob sib txuas uas yog nyob rau hauv kev sib cuag nrog cov pins ntawm lub ntsaws thiab yog siv los ua kom tiav cov hluav taws xob sib txuas thaum lub ntsaws ntsaws ntsaws rau hauv lub qhov (socket) yuav tsum xyuas kom meej tias muaj cov hlau sib txuas ntawm yam tsawg kawg yog ob sab ntawm txhua qhov. pin.
6.3 Lub tes tsho ntawm lub qhov (socket) yuav tsum tiv taus corrosion thiab hnav.
6.4 Qhov yuav tsum tau muaj rau insulating liners thiab insulating barriers.
6.5 Lub qhov (socket) qhov hluav taws xob yuav tsum tsim kom muaj kev sib txuas ntawm cov khoom siv hluav taws xob thiab kev sib txuas kom zoo rau cov terminals, qhov chaw zoo ntawm cov neeg xyuas pib, yooj yim ntawm kev ruaj ntseg cov khoom tseem ceeb rau ntawm phab ntsa lossis lub thawv, thiab qhov chaw txaus.
6.6 Tus tsim ntawm lub qhov (socket) qhov hluav taws xob yuav tsum tsis txhob tiv thaiv tag nrho cov mating nrog cov ntsaws ruaj ruaj vim muaj kev cuam tshuam los ntawm cov mating nto.Thaum lub ntsaws ntsaws rau hauv lub qhov (socket), nws tau txiav txim siab los ntawm kev ntsuas tias qhov sib txawv ntawm qhov mating nto ntawm lub ntsaws thiab lub qhov (socket) mating nto yuav tsum tsis pub tshaj 1 hli.
6.7 Tus pin hauv av yuav tsum muaj lub zog txhua yam txaus.
6.8 Lub qhov (socket) hauv av, lub qhov (socket) theem thiab lub qhov (socket) nruab nrab yuav tsum raug kaw kom tsis txhob muaj kev sib hloov.
6.9 Cov hlau strips ntawm hauv av Circuit Court yuav tsum tsis txhob muaj burrs uas yuav ua rau puas lub rwb thaiv tsev ntawm lub hwj chim conductors.
6.10 Cov qhov (socket) ntsia rau hauv lub thawv installation yuav tsum tau tsim kom cov neeg xyuas pib xaus tuaj yeem ua tiav tom qab lub thawv teeb tsa tau teeb tsa hauv qhov qub tab sis ua ntej lub qhov (socket) raug teeb tsa hauv lub thawv teeb tsa.
6.11 Cable nkag yuav tsum tso cai nkag ntawm cable conduits lossis sheaths los muab kev tiv thaiv txhua yam rau cables.
7. Kev laus-resistant thiab noo noo-pov thawj
7.1 Lub qhov (socket) yuav tsum muaj kev tiv thaiv kev laus: tom qab cov qauv raug rau qhov cub kub ntawm 70 ℃ ± 2 ℃ rau 168 teev, cov qauv yuav tsum tsis txhob muaj cov kab nrib pleb thiab nws cov khoom yuav tsum tsis txhob nplaum los yog nplua.
7.2 Lub qhov (socket) yuav tsum tsis txhob ya raws: tom qab cov qauv khaws cia rau 48 teev ntawm qhov txheeb ze av noo ntawm 91% ~ 95% thiab qhov kub ntawm 40 ℃ ± 2 ℃, rwb thaiv tsev tsis kam thiab hluav taws xob muaj zog yuav tsum ua raws li cov cai.
8. Rwb thaiv tsev tsis kam thiab hluav taws xob muaj zog
8.1 Lub rwb thaiv tsev tiv thaiv ntawm txhua tus ncej txuas ua ke thiab lub cev yog ≥5MΩ.
8.2 Lub rwb thaiv tsev ntawm txhua tus ncej yog ≥2MΩ.
8.3 Siv qhov ntsuas hluav taws xob tiv thaiv ntawm 50Hz, 2KV ~ ntawm txhua yam khoom siv rau 1 feeb.Yuav tsum tsis muaj flickering lossis tawg.
9. Kub nce
Tom qab cov qauv tau dhau los ntawm kev sim lub neej, qhov kub nce ntawm nws cov terminals yuav tsum tsis txhob ntau tshaj 45K, qhov siab tshaj plaws kub nce ntawm cov khoom siv hlau yuav tsum tsis pub tshaj 30K, thiab qhov kub ntawm cov khoom siv tsis yog hlau yuav tsum tsis pub tshaj 40K.
10. Lub peev xwm tawg
Rau cov khoom siv hluav taws xob uas muaj qhov ntsuas hluav taws xob tsis siab tshaj 250 V thiab qhov ntsuas tam sim no tsis siab tshaj 16 A, cov hlab ntsha ntawm cov khoom siv ntsuas yuav tsum nyob nruab nrab ntawm 50 hli thiab 60 hli.
Ntxig lub ntsaws rau hauv thiab tawm ntawm lub qhov (socket) 50 zaug (100 strokes), lub plug-in thiab rub tawm tus nqi yog:
- Rau cov khoom siv hluav taws xob nrog cov ntsuas tam sim no tsis tshaj 16 A thiab qhov ntsuas hluav taws xob tsis siab tshaj 250V, 30 strokes ib feeb;
-Rau lwm yam khoom siv hluav taws xob, 15 strokes ib feeb.
Thaum lub sij hawm xeem, tsis muaj kev cuam tshuam arc flash yuav tsum tshwm sim.Tom qab kev sim, cov qauv yuav tsum tsis pub dawb los ntawm kev puas tsuaj uas yuav cuam tshuam rau kev siv ntxiv, thiab lub qhov ntxig rau tus pin yuav tsum tsis muaj kev puas tsuaj uas yuav cuam tshuam rau nws txoj kev nyab xeeb hauv lub ntsiab lus ntawm daim ntawv no.
11.Kev ua haujlwm li qub (kev sim lub neej)
Cov khoom siv hluav taws xob yuav tsum muaj peev xwm tiv taus cov neeg kho tshuab, hluav taws xob thiab thermal kev ntxhov siab tshwm sim los ntawm kev siv ib txwm tsis hnav lossis lwm yam teeb meem.Nyob rau hauv ib lub voj voog nrog ntsuas voltage, ntsuas tam sim no, COSφ = 0.8 ± 0.05, ntsaws thiab tshem tawm 5000 zaug.
Thaum lub sij hawm xeem, tsis tas yuav tsum muaj arc flash.Tom qab kuaj, cov qauv yuav tsum tsis txhob tshwm sim: hnav uas yuav cuam tshuam rau kev siv yav tom ntej;deterioration ntawm vaj tse, insulating gaskets los yog barriers, thiab lwm yam .;kev puas tsuaj rau lub qhov (socket) uas yuav cuam tshuam rau kev ua haujlwm ntawm lub ntsaws;xoob hluav taws xob los yog mechanical kev sib txuas;leakage ntawm sealant.xau.
12. Lub zog rub tawm
Lub qhov (socket) yuav tsum xyuas kom meej tias lub plug yog ib qho yooj yim mus ntxig thiab tshem tawm thiab tiv thaiv lub plug los ntawm lub qhov (socket) thaum lub sij hawm ib txwm siv.
13. Mechanical zog
Cov khoom siv hluav taws xob, qhov chaw teeb tsa lub npov, cov qog thiab cov npog yuav tsum muaj lub zog muaj zog txaus los tiv thaiv cov neeg kho tshuab kev ntxhov siab thaum lub sijhawm teeb tsa thiab siv.
14.1 Cov qauv yog rhuab hauv qhov cub kub ntawm 100 ° C ± 2 ° C rau 1 teev.Thaum lub sij hawm sim, tus qauv yuav tsum tsis txhob hloov pauv uas yuav cuam tshuam rau kev siv yav tom ntej, thiab yog tias muaj cov sealant, nws yuav tsum tsis txhob ntws los nthuav tawm qhov chaw nyob.Tom qab qhov kev xeem, daim paib yuav tsum tseem pom tau.
14.2 Tom qab ntsuas lub pob siab, qhov indentation txoj kab uas hla yuav tsum tsis pub tshaj 2 hli.
15. Cov ntsia hlau, cov khoom nqa tam sim no thiab lawv cov kev sib txuas
15.1 Ob qho tib si hluav taws xob thiab cov khoom siv sib txuas yuav tsum tiv taus cov kev ntxhov siab ntawm cov neeg kho tshuab uas tshwm sim hauv kev siv ib txwm.
15.2 Rau cov ntsia hlau uas koom nrog cov xov ntawm cov ntaub ntawv insulating thiab cov ntsia hlau uas yuav tsum tau nruj thaum txuas cov khoom siv hluav taws xob thaum lub sij hawm teeb tsa, xyuas kom meej tias lawv raug coj mus rau hauv cov ntsia hlau qhov los yog cov txiv ntseej.
15.3 Kev sib txuas hluav taws xob yuav tsum yog qhov kev sib cuag ntawm lub siab tsis sib kis los ntawm cov khoom siv insulating.
15.4 Screws thiab rivets yuav tsum tau muab xauv thaum ua kev sib txuas hluav taws xob thiab cov khoom siv sib txuas kom tsis txhob xoob thiab tig.
15.5 Cov khoom siv hlau tam sim no yuav tsum tau ua los ntawm cov hlau uas ua tau raws li qhov yuav tsum tau ua rau cov khoom siv dag zog, hluav taws xob conductivity thiab corrosion zog.
15.6 Cov neeg sib cuag uas yuav swb thaum siv ib txwm yuav tsum yog ua los ntawm cov hlau tsis muaj zog.
15.7 Tus kheej-tapping thiab txiav tus kheej yuav tsum tsis txhob siv los txuas cov khoom nqa tam sim no.Lawv tuaj yeem siv rau kev sib txuas hauv ntiaj teb, yog tias siv tsawg kawg yog ob lub taub hau.
16. Creepage nrug, hluav taws xob clearance, los ntawm rwb thaiv tsev sealing nrug
Creepage nrug, hluav taws xob clearance thiab nrug los ntawm sealant yog raws li nram no:
17.Kev kub ntxhov thiab nplaim taws tsis kam ntawm cov ntaub ntawv insulating
17.1 Glow wire test (kuaj raws li cov nqe lus 4 txog 10 ntawm BS6458-2.1:1984) Cov ntaub ntawv rwb thaiv tsev rau cov khoom thauj tam sim no thiab cov khoom siv hauv av 850 ℃
17.2 Insulating cov ntaub ntawv uas tsis yog-taw tam sim no-nqa qhov chaw thiab grounded Circuit Court qhov chaw 650 ℃.
17.3 Tom qab qhov kev sim, tsis muaj qhov pom cov nplaim taws thiab tsis muaj qhov ci ntsa iab, lossis cov nplaim hluav taws raug tua los yog lub ci ntsa iab ploj hauv 30 vib nas this tom qab lub glow hlau raug tshem tawm;cov ntaub so ntswg tsis ntes hluav taws, thiab cov ntoo thuv tsis hlawv.
18. Anti-xeb kev ua tau zoo
Hlau qhov chaw yuav tsis pom xeb tom qab dhau qhov kev kuaj corrosion.
Post lub sij hawm: Feb-05-2024