Lub ntsiab lus ntawm Intrinsically Safe Cable yog dab tsi?
- Kev Taw Qhia: Vim Li Cas "Kev Nyab Xeeb Hauv Lub Siab" Tseem Ceeb
Hauv cov lag luam xws li cov chaw ua roj, cov chaw tsim tshuaj lom neeg, cov chaw ua roj, cov chaw khawb thee hauv av, thiab kev tsim tshuaj, huab cua muaj cov pa roj uas yooj yim hlawv, cov pa dej, lossis cov hmoov av uas yooj yim hlawv. Hauv cov chaw txaus ntshai no, ib qho hluav taws xob yooj yim los ntawm cov xov hlau puas lossis kev sib txuas xoob tuaj yeem ua rau muaj kev tawg loj heev.
(Daim duab qhia txog lub kaw lus muaj kev nyab xeeb (IS))
Qhov no yog qhov twgCov cables uas muaj kev nyab xeeb (IS)ua lub luag haujlwm tseem ceeb.
Ib lub cable muaj kev nyab xeeb intrinsicly yog tsim los rautsis tsim lossis khaws cia lub zog hluav taws xob txausua rau muaj kev kub hnyiab—txawm tias nyob rau hauv qhov xwm txheej tsis zoo xws li luv luv lossis av tsis ua haujlwm. Tsis zoo li cov txheej txheem tiv thaiv kev tawg (Ex-d) uas muaj kev tawg hauv qhov chaw kaw hnyav, kev nyab xeeb sab hauv tiv thaiv kev tawg los ntawm thawj qhov chaw.
Phau ntawv qhia no piav qhia txog lub ntsiab lus ntawm cov xov hlau intrinsically safe, nws ua haujlwm li cas, lub luag haujlwm tseem ceeb ntawm capacitance thiab inductance, thiab vim li cas cov xim xiav thiaj li xav tau thoob ntiaj teb rau kev teeb tsa thaj chaw muaj kev phom sij.
- Kev Txhais Lus: Dab tsi yog Intrinsically Safe Cable?
Cov Lus Txhais Tseem Ceeb:Ib lub voj voog muaj kev nyab xeeb yog ib qho "uas muaj hluav taws xob lossis cua sov tsis tuaj yeem ua rau muaj kev kub hnyiab ntawm cov khoom sib xyaw ua ke uas yooj yim hlawv lossis kub hnyiab hauv huab cua raws li cov xwm txheej xeem tau teev tseg" (IEC 60079-11).
Siv rau cov cables, Eland Cables muab cov lus piav qhia txog kev siv tau:
"Cov xov hluav taws xob feem ntau raug kaw thiab yog li ntawd yuav suav tias muaj kev nyab xeeb hauv qee daim ntawv thov yog tias tiv thaiv los ntawm kev puas tsuaj, sab nraud hluav taws xob lossis cov teb sib nqus (EMI), thiab cais tawm ntawm cov voj voog tsis muaj kev nyab xeeb."
Hauv cov lus yooj yim:Ib txoj hlua hluav taws xob uas muaj kev nyab xeeb, thaum siv ua ib feem ntawm lub kaw lus IS uas tau ntawv pov thawj nrog cov teeb meem txwv tsis pub muaj zog, yuav tsis tsim hluav taws xob kub txaus lossis muaj zog txaus los ua rau muaj huab cua txaus ntshai nyob ib puag ncig.
Qhov Txawv Txawv Tseem Ceeb:
| Txoj Kev Tiv Thaiv | Nws Ua Haujlwm Li Cas | Lub luag haujlwm ntawm Cable |
| Tiv Thaiv Kev Tawg (Ex-d) | Muaj qhov tawg nyob rau hauv ib qho chaw kaw hnyav, tiv taus hluav taws | Cov xov hlau nkag mus rau hauv lub qog flameproof; lub enclosure ua haujlwm tiv thaiv |
| Kev Nyab Xeeb Sab Hauv (Ex-i / IS) | Tiv thaiv kev kub hnyiablos ntawm kev txwv lub zog hluav taws xob hauv qab qhov txwv tsis pub muaj hluav taws xob | Cov kev teeb tsa hluav taws xob ntawm cov cable (capacitance, inductance) yuav tsum tau tswj; lub ntaub thaiv yuav tsum tiv thaiv EMI induction |
Ntawm Dingzun Cable,Peb cov xov hlau ntsuas kev nyab xeeb yog tsim los nrog cov peev xwm qis, kev tsim kho qis thiab IEC 60079-14 ua raws li lub teeb xiav-xiav-ua kom koj cov cuab yeej ntsuas hauv thaj chaw muaj kev phom sij tseem muaj kev nyab xeeb thiab tau ntawv pov thawj.
- Yuav Ua Haujlwm Li Cas: Lub Ntsiab Cai Txwv Zog
Ib lub kaw lus muaj kev nyab xeeb tsis yog nyob ntawm cov thawv hnyav. Hloov chaw, nws nyob ntawmkev txwv zog.
3.1 Lub Qauv Tsim Kho ntawm IS
Ib lub voj voog IS feem ntau muaj peb yam khoom ua haujlwm ua ke:
| Cheebtsam | Qhov chaw | Kev Ua Haujlwm |
| IS Barrier(Zener Diode los yog Galvanic Isolator) | Thaj Chaw Muaj Kev Nyab Xeeb (Chav Tswj) | Txwv qhov voltage, tam sim no, thiab tag nrho lub zog rau cov qib nyab xeeb (feem ntauqis dua 1.3 watts, feem ntau |
| YOG Cable | Thaj Chaw Muaj Kev Phom Sij (Cheeb Tsam 0/1/2) | Xa cov zog txwv thaumtsis khaws cia lub zog ntxivuas yuav raug tso tawm ua lub txim hluav taws |
| IS Field Instrument | Thaj Chaw Muaj Kev Phom Sij (piv txwv li, Thaj Chaw 1) | Tsim los ua haujlwm kom muaj kev nyab xeeb hauv lub zog txwv |
3.2 Qhov Teeb Meem Kev Khaws Cia Zog: Vim Li Cas Capacitance thiab Inductance Tseem Ceeb
Txawm tias muaj lub zog txwv tsis pub muaj zog tshaj 1.3W los xij,cable nws tus kheejtuaj yeem khaws lub zog hluav taws xob hauv ob hom:
Muaj Peev Xwm (C):Cov xov hlau ua haujlwm zoo li lub capacitor. Txhua tus conductor, thiab qhov chaw nruab nrab ntawm conductor thiab shield, khaws cov hluav taws xob. Thaum lub xov hlau raug txiav lossis luv luv, cov hluav taws xob khaws cia no tso tawm ua lub hluav taws xob.Lub peev xwm siab dua = lub txim hluav taws loj dua = kev pheej hmoo hluav taws kub ntau dua.
Kev cuam tshuam (L):Lub voj hlua khi cia lub zog sib nqus. Thaum lub voj voog qhib, lub zog sib nqus no khaws cia yuav tawg, tsim kom muaj qhov hluav taws xob nce siab uas tuaj yeem tsim hluav taws xob.Inductance siab dua = qhov voltage nce siab dua = kev pheej hmoo ntawm kev kub hnyiab ntau dua.
Rooj 1: Vim Li Cas Qhov Muaj Peev Xwm Tsawg Thiab Qhov Inductance Tsawg Thiaj Tseem Ceeb Rau IS Cables
| Cov Qauv | Lub Cim | Chav | Qhov Kev Pheej Hmoo | Qhov Yuav Tsum Tau Ua |
| Capacitance (Core-Core) | Cc | nF/km los yog pF/m | Cov hlua hluav taws xob khaws cov nqi hluav taws xob. Thaum luv luv, cov nqi hluav taws xob tawm los ua lub txim hluav taws xob. Cc siab dua = lub txim hluav taws xob loj dua | Yuav tsum qis qis( |
| Capacitance (Core-Shield) | Cc | nF/km los yog pF/m | Khaws cov nqi hluav taws xob ntawm tus neeg coj thiab daim ntaub thaiv. Tseem ceeb rau cov xov hlau uas muaj ntaub thaiv | Yuav tsum tau sau ntaub ntawv |
| Kev cuam tshuam | Lc | µH/m los yog mH/km | Lub voj cable khaws lub zog sib nqus. Thaum qhib, lub zog sib tsoo ua rau muaj hluav taws xob nce siab | Yuav tsum qis thiab tswj tau |
| L/R Piv | L/R | µH/Ω | Lub sijhawm tsis hloov pauv ntawm lub voj voog; siv rau kev pov thawj cable mining (BS 6704) | Yuav tsum phim cov lus qhia txog kev thaiv |
Kev Siv Tau Zoo:Ib txoj hlua hluav taws xob uas muaj peev xwm loj (piv txwv li, cov hlua hluav taws xob pheej yig uas muaj PVC rwb thaiv tsev) khaws tau hluav taws xob ntau dua li cov hlua hluav taws xob IS uas muaj peev xwm loj (PE lossis XLPE rwb thaiv tsev). Kev siv cov hlua hluav taws xob uas tsis tau ntawv pov thawj nrog cov ntaub thaiv IS uas tau ntawv pov thawj tuaj yeem ua rau lub kaw lus kev nyab xeeb puas tsuaj tag nrho - vim tias cov hlua hluav taws xob nws tus kheej dhau los ua qhov chaw ua rau hluav taws kub.
Ntawm Dingzun Cable,peb cov cables IS sivPE (Polyethylene) lossis XLPE rwb thaiv tsevnrog qhov tsis tu ncua dielectric qis (ε)ᵣ= 2.3), xa cov conductor-rau-conductor capacitance ntawm≤150 nF/km—ua kom muaj kev nyab xeeb ntawm cov qib khaws cia hluav taws xob rau cov chaw teeb tsa muaj kev phom sij.
- Tus lej xim xiav: Vim li cas IS Cables thiaj yog xiav
Thoob ntiaj teb, cov cables siv rau cov circuits muaj kev nyab xeeb raug txheeb xyuas los ntawm ib qholub plhaub sab nraud xiav(feem ntau yog xim xiav kaj, RAL 5015).
(Cov cables uas muaj kev nyab xeeb (IS) kev teeb tsa)
Rooj 2: Cov Cai Xim Xiav (IEC 60079-14)
| Qhov Yuav Tsum Tau Ua | Cov Lus Qhia Tshwj Xeeb | Vim Li Cas Nws Tseem Ceeb |
| Xim ntawm lub hnab tshos | Xim xiav (RAL 5015) | Kev txheeb xyuas tam sim ntawd thaum lub sijhawm teeb tsa thiab txij nkawm |
| Kev cim | Cov cim ruaj khov: "Ex-ia" lossis "Ex-ib" | Paub meej tias qhov kev ntsuas kev nyab xeeb ntawm lub cable |
| Cov Chaw Nres Tsheb | Cov xov hlau xiav lossis lub tes tsho | Tiv thaiv kev sib txuas tsis raug rau cov hluav taws xob uas tsis yog IS |
| Cov Txheej Txheem Conduit | Yog siv, cov yeeb nkab yuav tsum yog xim xiav lossis muaj daim ntawv lo | Kev sib cais ntawm cov voj voog uas tsis yog IS |
Vim li cas Xim Coding thiaj tseem ceeb:
Cov kws kho hluav taws xob thiab cov neeg ua haujlwm kho uas ua haujlwm hauv thaj chaw muaj kev phom sij yuav tsum paub qhov txawv ntawm IS circuits (lub zog muaj kev nyab xeeb) thiab cov hluav taws xob uas tsis yog IS (lub zog txaus ntshai). Yog tias tus kws kho tshuab tsis txhob txwm txuas lub xov hluav taws xob uas tsis yog IS (piv txwv li, 120V AC) rau lub IS terminal block, lub zog uas tshwm sim tuaj yeem tshaj qhov ntsuas kev nyab xeeb ntawm lub barrier - ua rau lub kaw lus "muaj kev nyab xeeb" uas tau ntawv pov thawj ua rau muaj kev phom sij tawg.
Cov Lus Cim Ua Raws Cai:Yog tias koj lub hnab cable yog xim dub, grey, lossis lwm yam xim uas tsis yog xim xiav kaj, nws yogtsis yogua raws li IS circuits raws li IEC 60079-14—txawm nws qhov kev ua haujlwm hluav taws xob li cas los xij.
Ntawm Dingzun Cable,peb cov cables muaj kev nyab xeeb intrinsicLub plhaub sab nraud xiav (RAL 5015)nrog rau lub cim Ex-ia/Ex-ib uas ruaj khov—ua kom ntseeg tau tias ua raws li thaj chaw muaj kev phom sij tam sim ntawd.
- Lub Tswv Yim Txog Lub Koom Haum: Vim Li Cas Cov Kev Cai Cable Yuav Tsum Tau Txheeb Xyuas
Yuav kom ib lub IS system tseem muaj daim ntawv pov thawj,tag nrho peb yam khoom—qhov thaiv, lub cable, thiab cov cuab yeej teb—yuav tsum muaj cov kev teeb tsa hluav taws xob sib xws. Qhov no hu uaLub Tswv Yim ntawm Lub Koom Haum.
Rooj 3: Cov Kev Cai rau Kev Txheeb Xyuas Qhov System IS
| Cheebtsam | Cov Txheej Txheem Tseem Ceeb | Kev piav qhia |
| Chaw Thaiv (Cheeb Tsam Muaj Kev Nyab Xeeb) | Voc (V), Isc (A),Ca (Qhov siab tshaj plaws uas tso cai rau lub peev xwm),La (Qhov siab tshaj plaws uas tso cai inductance) | Txhais tau tias lub zog cable ntau npaum li cas uas qhov thaiv tuaj yeem tiv taus kev nyab xeeb |
| YOG Cable | Cc (Cable capacitance/km),Lc (Kev cuam tshuam ntawm Cable / km) | Yuav tsum tau sau tseg rau ntawm daim ntawv qhia txog cable |
| Cov Cuab Yeej Siv Hauv Teb | Ci (Lub peev xwm sab hauv), Li (Lub zog inductance sab hauv) | Muab los ntawm lub chaw tsim khoom siv |
Cov Qauv Txheeb Xyuas:
- Kev Tshawb Xyuas Capacitance:(Cc × Qhov Ntev ntawm Cable) + Ci ≤ Ca
- Kev Tshawb Xyuas Inductance:(Lc × Qhov Ntev Cable) + Li ≤ La
Qhov Tseem Ceeb:Yog tias lub chaw tsim khoom cable tsis muabCc(muaj peev xwm) thiabLc(inductance) tus nqi, lub cable tsis tuaj yeem siv rau hauv lub kaw lus IS uas tau ntawv pov thawj. Qhov no yog vim li cas siv "txhua lub cable uas muaj shielded" hauv thaj chaw txaus ntshai yog qhov txaus ntshai thiab tsis ua raws li txoj cai - koj tsis tuaj yeem txheeb xyuas cov kev teeb tsa yam tsis muaj cov ntaub ntawv.
Ntawm Dingzun Cable,peb muabCov kev ntsuas Lc (µH/m) thiab Cc (nF/km) uas tau ntawv pov thawjnrog txhua qhov kev xa khoom ntawm IS cable—ua rau koj ua tau qhov kev xam zauv tseeb thiab ua kom muaj kev ua raws li thaj chaw txaus ntshai.
- Ex-ia vs. Ex-ib: Cov Qib Kev Nyab Xeeb Sab Hauv
IS circuits raug cais ntxiv los ntawm lawv qhov kev ua txhaum thiab thaj chaw txaus ntshai.
Rooj 4: Kev Ntsuas Ex-ia vs. Ex-ib rau Cov Cables
| Kev Ntsuas | Kev Ua Txhaum Cai | Thaj Chaw Siv Tau | Qhov Yuav Tsum Tau Ua Rau Cable |
| Txij no mus | Ob qhov txhaum cai ywj pheej | Cheeb Tsam 0(Kev pheej hmoo tawg tas mus li) | Cov Kev Xav Taunruj tshaj plawsCov kev txwv ntawm L/C; kev ruaj ntseg siab tshaj plaws |
| Ex-ib | Ib qho kev txhaum xwb | Cheeb Tsam 1(Yuav muaj kev pheej hmoo tawg) | Cov Kev Xav Taunruab nrabCov kev txwv L/C; tus qauv IS cable txaus |
| Ex-ic | Tsis muaj qhov txhaum (kev ua haujlwm ib txwm xwb) | Cheeb Tsam 2(Tsis zoo li yuav tshwm sim, lub sijhawm luv luv) | Tsis muaj kev txwv tshwj xeeb rau L/C; tej zaum yuav siv tau cov cable txheem |
Kev cuam tshuam rau kev xaiv Cable:Cov voj voog Ex-ia xav tau qhov qis dua qhov capacitance thiab inductance txwv dua li Ex-ib kom ntseeg tau tias muaj kev nyab xeeb nyob rau hauv ob qho tib si. Ib txwm xyuas kom meej tias qib IS xav tau ua ntej teev cov cable.
- Cov Kev Cai Tiv Thaiv rau IS Cables
Raws li NFPA 70 Tshooj 504.30,kev tiv thaiv yog qhov yuav tsum tau uarau cov circuits muaj kev nyab xeeb intrinsic kom tiv thaiv EMI coupling.
Vim Li Cas Kev Tiv Thaiv Thiaj Tseem Ceeb:Cov Variable Frequency Drives (VFDs), cov xov tooj cua transmitters, thiab cov khoom siv vuam tsim cov electromagnetic interference (EMI). Qhov EMI no tuaj yeemua kom muaj zog thiab tam sim norau ntawm txoj hlua ntev ntawm cov cuab yeej siv—txawm tias qhov thaiv ntawd txwv tsis pub muaj zog txog 1.2W los xij, qhov chaw EMI sab nraud tuaj yeem ua rau muaj zog txaus los tsim hluav taws xob uas tuaj yeem hlawv tau.
(Cov ntawv ci txhuas uas tau tshuaj ntsuam thiab cov hlau tooj liab uas tau braided)
Rooj 5: Cov Kev Xaiv Tiv Thaiv rau IS Cables
| Hom Tiv Thaiv | Kev Them Nqi | Daim Ntawv Thov Zoo Tshaj Plaws | Kev Tsim Nyog IS |
| Cov Ntawv Nyiaj Tiv Thaiv | 100% | Kev teeb tsa ruaj khov, EMI zaus siab | Siv tau rau kev khiav luv luv, tsis hloov pauv |
| Braid Shield | 70-95% | Cov ntawv thov dynamic/flexing, tsawg-zaus EMI | Pom zoo rau kev khawb av, robotics |
| Composite (Ntawv ci + Braid) | 100% + braid | Kev lag luam hnyav, EMI siab | Zoo tshaj plaws rau cov chaw ua roj, cov chaw tsim tshuaj lom neeg |
Txoj Cai Av:Lub shield yuav tsum tau grounded ntawmib qho xwb(feem ntau nyob rau hauv thaj chaw muaj kev nyab xeeb ntawm qhov thaiv) kom tiv thaiv cov voj voog hauv av uas tuaj yeem ua rau muaj zog txaus ntshai.
Ntawm Dingzun Cable,peb cov IS instrument cables featureCov hlau tooj liab braid shielding (≥85% kev pab them nqi)raws li tus qauv - thaiv EMI induction thaum tswj hwm IS ua raws li.
- Cov Lus Qhia Tseem Ceeb rau IS Cables
Thaum teev cov xov hlau uas muaj kev nyab xeeb rau thaj chaw muaj kev phom sij, xyuas kom meej cov kev ntsuas tseem ceeb no:
Rooj 6: Daim Ntawv Teev Cov Lus Qhia Txog IS Cable
| Cov Qauv | Qhov Yuav Tsum Tau Ua | Vim Li Cas Nws Tseem Ceeb |
| Capacitance (Core-Core) | ≤150 nF/km(PE/XLPE rwb thaiv tsev) | Txwv cov nqi khaws cia; xyuas kom meej tias qhov sib xws nrog tus nqi Ca thaiv |
| Capacitance (Core-Shield) | ≤250 nF/km | Tseem ceeb rau cov xov hlau uas muaj ntaub thaiv; cuam tshuam rau lub zog khaws cia |
| Kev cuam tshuam | ≤0.8 mH/km | Txwv cov voltage spikes thaum circuits qhib |
| Xim ntawm lub hnab tshos | Xim xiav (RAL 5015) | Kev txheeb xyuas pom raws li IEC 60079-14 |
| Kev tiv thaiv | Tag nrho cov braid (≥85% kev pab them nqi) | Thaiv EMI induction rau hauv thaj chaw txaus ntshai |
| Hlau ntws | Muaj xws li (tinned tooj liab) | Ua kom yooj yim rau ib qho chaw grounding |
| Kev rwb thaiv tsev | PE lossis XLPE (qis εᵣ) | Tsis tu ncua dielectric qis = capacitance qis |
| Tus Neeg Coj | Tooj liab uas muaj hlau nplaum | Kev ywj pheej + kev tiv thaiv corrosion |
| Kev Ntsuas Kub | -40°C txog +90°C (yam tsawg kawg nkaus) | Muaj sia nyob rau hauv cov chaw ua haujlwm |
| Kev Ntsuas Hluav Taws | IEC 60332-1-2 los yog zoo dua | Kev nyab xeeb hluav taws |
- Cov Lus Dab Neeg Feem Ntau Hais Txog Cov Cables Muaj Kev Nyab Xeeb
| Dab neeg | Kev muaj tiag |
| Txhua lub xov hlau uas tiv thaiv tau yog IS-rated. | Cuav. IS cables xav tau cov kev tswj hwm Cc/Lc thiab cov ntaub thaiv xiav. Cov cables tiv thaiv tus qauv tsis muaj cov kev cai tau ntawv pov thawj. |
| Tus laj kab ua txhua yam haujlwm kev nyab xeeb—txoj hlua tsis muaj teeb meem. | Tsis yog. Lub xov hlau khaws lub zog (capacitance/inductance). Lub xov hlau uas muaj capacitance siab tuaj yeem kov yeej qhov kev ntsuas kev nyab xeeb ntawm qhov thaiv. |
| "Xiav cable tsuas yog xim lag luam xwb." | Cuav. Xiav yog qhov yuav tsum tau ua los ntawm IEC 60079-14 rau kev txheeb xyuas lub voj voog IS. Cov xov hlau uas tsis yog xiav yog tsis ua raws li txoj cai. |
| "IS cable tsis zoo rau kuv daim ntawv thov." | Nyob ntawm seb. Yog tias koj muaj cov pa roj/pa/hmoov av uas yooj yim hlawv thaum ua haujlwm ib txwm, IS (lossis Ex-d) yog qhov yuav tsum tau ua raws li txoj cai hluav taws xob. |
| Kuv tuaj yeem txuas IS cable nrog cov connectors txheem. | Cuav. Cov splices tsim cov tsis paub hluav taws xob (Ci, Li) uas ua rau cov kev xam zauv tsis raug. |
Txog Dingzun Cable: Koj Tus Khub Tsim Kho Cable Uas Muaj Kev Nyab Xeeb
Nrog20+ xyoo ntawm kev tsim khoom tshwj xeeb,Dingzun Cableyog ib tus khub koom tes uas ntseeg siab rau lub zog thoob ntiaj teb, tshuaj lom neeg, kev khawb av thiab cov haujlwm tshuaj uas xav tau daim ntawv pov thawj,Cov xov hlau ntsuas kev nyab xeeb sab hauvPeb muab kev paub txog thaj chaw txaus ntshai sib xyaw ua ke nrogkev hloov kho tau yooj yim heevrau d xa cov cables uas ua tau raws li koj cov lus qhia IS thiab cov kev teeb tsa ntawm qhov chaw.
Peb cov peev xwm IS Cable:
| Muaj peev xwm | Cov Lus Qhia Tshwj Xeeb ntawm Dingzun |
| Kev Ua Raws Cai | IEC 60079-11, IEC 60079-14, NFPA 70, IEEE 1580 |
| Kev Ntsuas IS | Txij no mus(Cheeb Tsam 0),Ex-ib(Cheeb Tsam 1),Ex-ic(Cheeb Tsam 2) |
| Xim ntawm lub hnab tshos | Xim xiav (RAL 5015)— yuav tsum ua raws li IEC 60079-14 |
| Cov Khoom Siv Sheath | LSZH (kev nyab xeeb hluav taws), PUR (roj / puas), PVC (general) |
| Kev rwb thaiv tsev | PE los yog XLPE— lub peev xwm qis (≤150 nF / km) |
| Kev tiv thaiv | Tag nrho cov hlau tooj liab braid(≥85% kev pab them nqi) + cov hlau ntws |
| Tus Neeg Coj | Tooj liab uas muaj hlua khi (Chav Kawm 5/6, 18-24 AWG) |
| Cov Kev Ntsuas Hluav Taws Xob | Daim Ntawv Pov Thawj Lc (µH/m) thiab Cc (nF/km)muab rau kev suav cov koom haum |
| Kub thiab txias | -40°C txog +90°C (tus qauv); -65°C txog +200°C (FEP zoo tshaj) |
| Kev Ntsuas Hluav Taws | IEC 60332-1, IEC 60332-3 (LSZH xaiv) |
| Kev kuaj xyuas | 100% kev kuaj hluav taws xobntawm txhua lub reel |
Vim li cas Dingzun Cable rau Koj Qhov Chaw Teeb Tsa Phom Sij:
- Kev hloov kho tau yooj yim heev— suav khub (1 txog 100+), ntsuas tus neeg xyuas pib, qhov ceev ntawm kev tiv thaiv, cov ntaub thaiv — txhua yam yog tsim los rau koj daim ntawv thov IS
- Pab neeg ua haujlwm tsim khoom tshaj lij— Kev txhawb nqa rau kev suav cov yam ntxwv ntawm qhov chaw (Ca/La sib phim) kom ntseeg tau tias muaj kev sib raug zoo ntawm cov teeb meem
- Kev sib txuas lus ncaj qha rau cov kws tshaj lij— Cov lus hais sai, cov ntaub ntawv qhia txog kev siv tshuab tag nrho nrog Lc/Cc tus nqi, thiab kev xa khoom thoob ntiaj teb
- Cov ntaub ntawv tiav— Cov ntawv qhia txog kev xeem, daim ntawv pov thawj ua raws li txoj cai, thiab kev taug qab tau txhua yam khoom xa tuaj
Xav tau ib daim ntawv pov thawj IS cable rau koj cov cuab yeej siv hauv thaj chaw muaj kev phom sij?
[Tiv tauj peb pab neeg kev tshaj lij hnub no rau kev sab laj lossis kev coj ua qauv].