Dab tsi yog Shielded Instrumentation Cable thiab Vim li cas Shielding thiaj tseem ceeb?
- Cov Lus Teb Ncaj Qha: Ib Txheej Tiv Thaiv Rau Cov Cim Qhia Txog Kev Xav Tau
Cov neeg ib txwm nug tias:"Lub cable tiv thaiv yog dab tsi?"
Cov lus teb yooj yim:Ib txoj hlua ntsuas uas muaj ntaub thaiv yog ib txoj hlua uas muaj ib txheej hluav taws xob ntxiv - feem ntau yog ntawv ci txhuas, tooj liab braid, lossis ob qho tib si - qhwv ib ncig ntawm cov hlau uas muaj rwb thaiv tsev. Daim ntaub thaiv no ua haujlwm ua ib qho thaiv, tiv thaiv cov teeb liab ntsuas rhiab heev sab hauv los ntawm kev cuam tshuam hluav taws xob sab nraud (EMI) thiab kev cuam tshuam zaus xov tooj cua (RFI).
Vim Li Cas Kev Tiv Thaiv Thiaj Tseem Ceeb:
| Teeb meem | Tsis Muaj Kev Tiv Thaiv | Nrog Kev Tiv Thaiv |
| Cov cav thiab VFD nyob ze | EMI ua rau muaj suab nrov rau ntawm cov xov hlau teeb liab → kev nyeem tsis ruaj khov | Lub tsho tiv thaiv EMI → lub teeb liab huv si thiab ruaj khov |
| Cov xov tooj cua xa tawm (walkie-talkies, cell towers) | RFI txuas rau ntawm cable → cov cim cuav | Daim thaiv cuam tshuam/nqus RFI → cov ntaub ntawv txhim khu kev qha |
| Cov xov hlau khiav sib luag nrog cov xov hluav taws xob | Qhov hluav taws xob induced ua rau muaj qhov yuam kev ntsuas | Lub ntaub thaiv tiv thaiv lub suab nrov uas raug cuam tshuam mus rau hauv av |
| Cov khoom siv vuam nyob ze | Kev cuam tshuam loj heev ua rau kev sib txuas lus digital puas tsuaj | Lub ntaub thaiv tiv thaiv cov teeb liab tswj tseem ceeb |
| Suab nrov electromagnetic thoob plaws tsob nroj | Qhov sib piv ntawm lub teeb liab thiab lub suab nrov poob qis → qhov tseeb txo qis | Lub ntaub thaiv npog tswj kev ncaj ncees ntawm lub teeb liab |
Cov Lus Qhia Tseem Ceeb:Hauv cov chaw ua haujlwm, cov xov hlau tsis muaj kev tiv thaiv yuav raug cuam tshuam los ntawm suab nrov uas tuaj yeem ua rau 4-20mA loops tsis raug, ua rau RTD nyeem ntawv hloov pauv, thiab ua rau kev sib txuas lus digital zoo li RS485 lossis Modbus puas tsuaj.
Ntawm Dingzun Cable,peb tsim cov xov hlau tiv thaiv nrog cov ntawv ci, braid, thiab cov kev xaiv tiv thaiv sib xyaw - tsim rau koj qhov chaw ib puag ncig EMI thiab cov kev xav tau ntawm cov teeb liab.
- Yuav Ua Li Cas Tiv Thaiv Ua Haujlwm: Kev Tshawb Fawb Txog Kev Tiv Thaiv EMI
Kev tiv thaiv ua haujlwm los ntawm kev cuam tshuam lub zog electromagnetic thiab xa nws mus rau hauv av ua ntej nws mus txog cov teeb liab conductors.
Rooj 1: Cov Txheej Txheem Tiv Thaiv - Yuav Ua Li Cas Cov Tiv Thaiv Sib Txawv Ua Haujlwm
| Hom Tiv Thaiv | Nws Ua Haujlwm Li Cas | Kev Teb Zaus | Kev Ua Tau Zoo |
| Cov Ntawv Nyiaj Tiv Thaiv | Daim kab xev txhuas/polyester txuas ntxiv mus cuam tshuam cov EMI zaus siab. Kev npog 100% ua kom tsis muaj qhov sib txawv. | Zoo heev ntawmzaus siab(>1 MHz) | Kev tiv thaiv RFI - xov tooj cua, telecom, VFD hloov suab nrov |
| Braid Shield | Cov xov tooj liab uas siv cov xov hlau nqus tau cov EMI zaus qis thiab muab lub zog kho tshuab. Kev them nqi 70-95%. | Zoo heev ntawmzaus qis mus rau nruab nrab( | Suab nrov ntawm lub cev muaj zog, kev cuam tshuam ntawm cov kab hluav taws xob |
| Composite (Ntawv ci + Braid) | Cov ntawv ci thaiv cov zaus siab; cov xov hlau nqus cov zaus qis. Cov ntaub thaiv ua ke npog tag nrho cov spectrum. | Dav spectrum(DC mus rau GHz) | Cov chaw ua haujlwm hnyav - kev tiv thaiv siab tshaj plaws |
| Hlau ntws | Cov xov tooj liab uas tsis muaj rwb thaiv tsev sib cuag nrog daim ntawv ci tiv thaiv. Ua kom yooj yim rau kev xaus. | Tsis muaj | Muab kev sib txuas yooj yim rau cov ntawv ci tiv thaiv |
(Txoj hlua ntsuas uas muaj ntaub thaiv)
Kev Piav Qhia Txog Kev Tiv Thaiv Zoo (SE):
Kev Tiv Thaiv Zoo yog ntsuas hauv decibels (dB). Tus nqi dB siab dua, kev tiv thaiv zoo dua.
| SE (dB) | Kev Txo Qhov Teeb Meem | Qib Kev Tiv Thaiv |
| 40 dB | 100 × txo qis | Qhov yooj yim - chaw ua haujlwm ib puag ncig |
| 60 dB | 1,000 × txo qis | Nruab Nrab - kev lag luam me me |
| 80 dB | 10,000 × txo qis | Zoo - kev lag luam dav dav |
| >90 dB | 1,000,000,000 × txo qis | Zoo heev — kev lag luam hnyav (VFDs, motors, welders) |
Ntawm Dingzun Cable,peb cov xov hlau sib xyaw ua ke tau ua tiav qhov kev txheeb xyuas tseeb>90 dB kev tiv thaiv zoo— xyuas kom koj cov teeb liab tseem raug txawm tias nyob hauv qhov chaw ua lag luam nrov tshaj plaws.
- Hom Kev Tiv Thaiv: Ntawv Nyiaj vs Braid vs Composite
Kev nkag siab txog qhov sib txawv ntawm cov hom ntaub thaiv yog qhov tseem ceeb rau kev xaiv cov cable zoo rau koj daim ntawv thov.
Rooj 2: Ntawv ci vs Braid vs Composite Shielding - Kev sib piv tag nrho
| Cov Qauv | Cov Ntawv Nyiaj Tiv Thaiv (ASTP) | Braid Shield (BSTP) | Cov ntaub thaiv Composite (SF/UTP) |
| Kev Tsim Kho | Daim kab xev txhuas/polyester qhwv longitudinally los yog helically | Cov hlau tooj liab uas muaj cov xov hlau (70-95% kev npog) | Ntawv ci + sib cais braid (ua ke) |
| Kev Them Nqi | 100%(tsis muaj qhov sib txawv) | 70-95% (qhov sib txawv ntawm cov xov braid) | 100% ntawv ci + 70-95% braid |
| Qhov Zoo Tshaj Plaws Zaus Ntau | Zaus siab(>1 MHz) — RFI, xov tooj cua, VFD switching | Zaus qis mus rau nruab nrab( | Tag nrho spectrum- txhua zaus |
| Kev Tiv Thaiv Zoo | 60-90 dB (zaus siab) | 40-80 dB (zaus tsawg) | >90 dB(dav spectrum) |
| Kev ywj pheej | Zoo (tuaj yeem tawv nyob ntawm daim kab xev) | Zoo heev (cov braid flexes zoo) | Zoo mus rau Zoo heev |
| Lub Zog Kho Tshuab | Qis (daim kab xev tuaj yeem rhuav tau) | Siab(braid muab lub zog) | Siab |
| Kev Nyuaj Siab ntawm Kev Txiav Txim | Yuav tsum tau siv cov xov hlau ntws kom yooj yim rau kev sib txuas lus hauv av | Yuav tuaj yeem sib sau ua ke thiab sib txuas ncaj qha | Ob txoj kev ua tau |
| Tus nqi sib piv | 1.0 × (qhov pib) | 1.2-1.5 × | 1.5-2.0 × |
| Daim Ntawv Thov Ib Txwm Muaj | Kev teeb tsa ruaj khov, thaj chaw uas muaj RFI yooj yim | Dynamic/flexing, dav dav industrial EMI | Kev lag luam hnyav, VFD-nplua nuj, EMI siab |
Phau Ntawv Qhia Xaiv:
| Yog Koj Ib Puag Ncig Muaj... | Cov ntaub thaiv uas pom zoo |
| Cov xov tooj cua xa tawm, kev sib txuas lus hauv xov tooj, VFDs (suab nrov zaus siab) | Daim ntawv ci tiv thaiv(los yog sib xyaw ua ke) |
| Cov cav, cov kab hluav taws xob, cov transformers (suab nrov tsawg zaus) | Braid tiv thaiv(los yog sib xyaw ua ke) |
| Ob qho tib si suab nrov siab thiab qis (feem ntau cov nroj tsuag kev lag luam) | Cov ntaub thaiv sib xyaw ua ke (ntawv ci + braid) |
| Kev khoov ntau zaus, txoj kab hlau, neeg hlau | Braid tiv thaiv(ruaj khov dua nyob rau hauv flex) |
| Kev teeb tsa ruaj khov, kev tiv thaiv RFI siab tshaj plaws | Daim ntawv ci tiv thaiv(100% kev pab them nqi) |
| Cov teeb liab tseem ceeb, EMI hnyav (cov chaw ua roj, cov chaw tsim hluav taws xob) | Cov ntaub thaiv sib xyaw ua ke(kev tiv thaiv siab tshaj plaws) |
Ntawm Dingzun Cable,Peb muaj peb hom kev tiv thaiv. Peb pab neeg ua haujlwm pab koj xaiv hom kev tiv thaiv zoo tshaj plaws raws li koj qhov chaw ib puag ncig EMI, kev xav tau kev hloov pauv, thiab peev nyiaj.
- Vim Li Cas Cov Cim Qhia Txog Kev Siv Khoom Yuav Tsum Tau Tiv Thaiv
Cov teeb liab ntawm cov cuab yeej siv yog qhov tsis muaj zog rau suab nrov vim tias lawv yog cov uas tsis muaj zog, muaj zog impedance ntau, lossis muaj zaus ntau.
(Kev sib piv qhov zoo ntawm lub teeb liab: Cov xov hlau tsis muaj hlau thaiv VS Cov xov hlau thaiv)
Rooj 3: Kev puas tsuaj ntawm cov teeb liab ntawm cov cuab yeej siv rau EMI
| Hom Teeb Liab | Qib Ib Txwm | Kev tsis muaj zog | Vim li cas kev tiv thaiv thiaj tseem ceeb |
| 4-20mA voj voog | 4-20 mA (tam sim no qis) | Nruab nrab | Suab nrov ntxiv me me tam sim no hloov pauv → 0.1mA suab nrov = 0.5% nyeem yuam kev |
| Lub thermocouple | 0-50 mV (qhov hluav taws xob tsawg heev) | Siab heev | Cov teeb liab theem microvolt yooj yim kov yeej los ntawm EMI |
| RTD (kev tsis kam) | 100-1000 Ω (qib qis) | Siab | Kev hloov pauv ntawm qhov tsis kam ntawm 0.1Ω = 0.25 ° C yuam kev; EMI ua rau muaj kev tsis kam cuav |
| RS485 / Modbus | Cov lej digital (5V qhov sib txawv) | Nruab nrab | Suab nrov ua rau muaj qhov yuam kev me ntsis, CRC tsis ua haujlwm, thiab lub sijhawm sib txuas lus tsis ua haujlwm |
| Zaus / Lub plawv dhia | 0-10 kHz | Siab | EMI tsim cov pulses cuav lossis plam cov pulses tiag tiag |
| Kev kub ceev digital (Ethernet) | 1-10 V ncov-rau-nqis siab tshaj | Nruab Nrab-Siab | Suab nrov txo qhov sib piv ntawm lub teeb liab thiab lub suab nrov → qhov yuam kev me ntsis, kev xa rov qab |
Piv txwv li 4-20mA:
| Qib Suab Nrov | Kev cuam tshuam rau 4-20mA Teeb Liab | Kev Cuam Tshuam ntawm Cov Txheej Txheem |
| 0.01 mA suab nrov | 0.125% yuam kev | Siv tau rau feem ntau cov txheej txheem |
| 0.1 mA suab nrov | 1.25% yuam kev | Marginal — tej zaum yuav ua rau muaj teeb meem kev tswj hwm |
| 0.5 mA suab nrov | 6.25% yuam kev | Tseem ceeb - tej zaum yuav muaj teeb meem ntawm cov txheej txheem |
| 1.0 mA suab nrov | 12.5% yuam kev | Hnyav - lub voj voog tswj tsis ruaj khov |
Piv txwv ntawm RTD:
| Qhov Chaw Suab Nrov | Kev Ua Yuam Kev Tiv Thaiv | Qhov Kub Yuam Kev |
| Lub cev muaj zog nyob ze (1 V/m teb) | 0.05-0.2 Ohm | 0.13-0.5 ° C (feem ntau siv tau) |
| VFD (10 V/m teb) | 0.3-0.8 Ohm | 0.8-2.0°C(muaj teeb meem) |
| Cov khoom siv vuam (50+ V/m teb) | 2-5+ Ohms | 5-12+°C(yuam kev loj heev) |
Ntawm Dingzun Cable,peb cov xov hlau tiv thaiv tau tsim tshwj xeeb los tiv thaiv cov teeb liab tsis muaj zog no - nrog cov ntaub ntawv pov thawj tiv thaiv kom ua pov thawj kev ua tau zoo.
- Kev Txiav thiab Kev Sib Txuas Lus Hauv Av: Cov Kev Xyaum Zoo Tshaj Plaws
Ib daim ntaub thaiv tsuas yog ua haujlwm tau zoo yog tias nwsraug kaw thiab grounded kom raugKev sib txuas av tsis raug yog ib qho ua rau lub tiv thaiv tsis ua haujlwm.
Rooj 4: Cov Kev Cai Rau Kev Tiv Thaiv Av
| Txoj Cai | Qhov Yuav Tsum Tau Ua | Vim li cas |
| Ib qho chaw av | Tiv thaiv av ntawmIB QHO KAUG XWB(feem ntau yog chav tswj hwm / thaj chaw nyab xeeb) | Tiv thaiv cov voj voog hauv av - tam sim no ntws los ntawm daim ntaub thaiv ua rau muaj suab nrov rau ntawm cov neeg hlau |
| Qhov chaw hauv av | Hauv av ntawmqhov chaw/qhov kawg ntawm lub sensorrau qhov tsawg zaus EMI | Txoj kev luv luv rau suab nrov nrov |
| Qhov chaw hauv av | Hauv av ntawmqhov kawg ntawm tus txais / tus tswjrau cov zaus siab EMI | RFI raug cuam tshuam ntawm cov xov hlau kawg |
| Kev sib cav sib ceg (feem ntau) | Av ntawmqhov kawg ntawm tus maub los(ib qho taw tes) | Siv tau rau feem ntau ntawm cov ntawv thov kev lag luam |
| Cov xov hlau ntws | Ib txwm txuas cov xov hlau ntws rau hauv av (rau cov ntawv ci tiv thaiv) | Muab txoj kev xaus kev txhim khu kev qha |
| Kev sib txuas ntawm cov braid | Sau cov strands thiab xaus nrog lub thoob av los yog clamp | Xyuas kom txoj kev hauv av qis-impance |
| Kev sib txuas ntawm daim ntaub thaiv | Tswj kev sib txuas ntawm cov khoom sib txuas / cov thawv sib txuas | Kev tawg ntawm daim ntaub thaiv ua rau muaj qhov cuam tshuam ntawm lub kav hlau txais xov |
Cov Yuam Kev Feem Ntau Hauv Kev Txuas Av:
| Yuam Kev | Qhov tshwm sim | Kev Xyaum Ua Kom Yog |
| Kev sib txuas ob qho kawg | Lub voj voog av ua rau muaj suab nrov (ua tsis tiav lub hom phiaj tiv thaiv) | Avib kawg xwb |
| Tsis grounding kiag li | Lub ntaub thaiv ua haujlwm zoo li lub kav hlau txais xov - ua rau lub suab nrov zuj zus | Ib txwm muab lub shield ground (ib qho) |
| Kev sib txuas lus los ntawm ib txoj hlua ntev | Txoj kev impedance siab — tsis ua haujlwm ntawm cov zaus siab | Txoj kev luv luv, ncaj qha hauv av |
| Lub ntaub thaiv tawg ntawm lub thawv sib txuas | Tsis muaj kev sib txuas - suab nrov nkag mus rau ntawm qhov sib txawv | Siv cov thawv sib txuas hlau nrog kev sib txuas ua ke |
| Lub ntaub thaiv txuas nrog hauv av uas muaj lwm cov dej ntws | Txoj kev sib koom ua rau muaj suab nrov | Pom zoo kom siv cov cuab yeej hauv av tshwj xeeb |
Ntawm Dingzun Cable,Peb muab cov lus qhia txog kev teeb tsa thiab kev sib txuas lus hauv av kom ntxaws nrog txhua qhov kev xa khoom ntawm cov xov hlau tiv thaiv. Peb pab neeg ua haujlwm kuj tseem tuaj yeem tshuaj xyuas koj txoj kev npaj sib txuas lus hauv av kom ntseeg tau tias muaj kev tiv thaiv suab nrov zoo tshaj plaws.
- Cov Cable Tsis Muaj Tiv Thaiv vs Cov Cable Tiv Thaiv: Thaum Twg Yuav Siv Txhua Yam
Tsis yog txhua daim ntawv thov yuav tsum muaj kev tiv thaiv. Kev nkag siab thaum twg tsim nyog tiv thaiv yuav txuag tau tus nqi yam tsis muaj kev cuam tshuam rau kev ua haujlwm.
Rooj 5: Tsis muaj kev tiv thaiv piv rau Kev Tiv Thaiv - Phau Ntawv Qhia Xaiv
| Daim Ntawv Thov Factor | Tsis muaj kev tiv thaiv (UTP) | Tiv thaiv (STP / ASTP / BSTP) |
| Ib puag ncig EMI | Hluav taws xob ntsiag to (chaw ua haujlwm, chav kuaj, chav tswj) | Cov Hoobkas Lag Luam (tsav tsheb, VFDs, welders, xov tooj cua) |
| Hom teeb liab | Cov digital (tsis tseem ceeb), DC fais fab | Analog (4-20mA), thermocouple, RTD, high-speed digital |
| Qhov ntev ntawm cable | Luv ( | Ntev (>50m) — cov xov hlau ntev dua ua haujlwm ua cov kav hlau txais xov |
| Qhov ze rau cov xov hluav taws xob | > 300 hli sib cais | 10m |
| Qhov ceev ntawm lub tais cable | Tus lej xov tooj tsawg | Muaj ntau cov xov hlau (kev sib tham ntawm cov xov hlau) |
| Kev nkag siab txog tus nqi | Siab (tus nqi qis tshaj plaws uas lees txais tau) | Nruab Nrab (qhov tseem ceeb ntawm kev ntseeg tau) |
| Qhov yuav tsum tau ua kom yooj ywm | Siab (UTP muaj kev ywj pheej ntau dua) | Nruab Nrab (cov ntaub thaiv ntxiv qhov tawv) |
Daim Ntawv Qhia Txog Kev Txiav Txim Siab:
| Lo lus nug | Yog → | Tsis yog → |
| Puas muaj VFD, lub cev muaj zog, lossis lub tshuab vuam nyob hauv 10m? | Siv cov khoom tiv thaiv | Txuas ntxiv mus |
| Puas yog qhov ntev ntawm lub cable > 50m? | Siv cov khoom tiv thaiv | Txuas ntxiv mus |
| Puas yog lub cable khiav sib luag nrog lub zog > 10m? | Siv cov khoom tiv thaiv | Txuas ntxiv mus |
| Puas yog lub teeb liab analog (4-20mA, mV, RTD)? | Siv cov khoom tiv thaiv | Txuas ntxiv mus |
| Puas yog lub teeb liab tseem ceeb (kev nyab xeeb, qhov zoo, kev cai lij choj)? | Siv cov khoom tiv thaiv | Cov uas tsis muaj kev tiv thaiv yuav raug lees txais |
| Puas yog qhov chaw nyob ib puag ncig ntsiag to vim muaj hluav taws xob (chaw ua haujlwm, chav kuaj)? | Tsis muaj kev tiv thaiv tau txais | Siv cov khoom tiv thaiv |
Ntawm Dingzun Cable,Peb muaj cov xov hlau uas tsis muaj ntaub thaiv thiab cov xov hlau uas muaj ntaub thaiv. Peb pab neeg ua haujlwm pab koj txiav txim siab seb puas tsim nyog muaj ntaub thaiv rau koj daim ntawv thov tshwj xeeb - peb tsis muag cov ntaub thaiv tsis tsim nyog ntxiv.
- Cov Qauv Kev Lag Luam rau Cov Cables Tiv Thaiv
Cov xov hlau tiv thaiv yuav tsum ua tau raws li ntau yam qauv nyob ntawm daim ntawv thov thiab thaj chaw.
Rooj 6: Cov Qauv Kev Lag Luam rau Cov Cables Tiv Thaiv
| Tus Qauv | Thaj Chaw | Scope | Cov Kev Cai Tseem Ceeb |
| EN 50288-7 | Tebchaws Europe/Thoob Ntiaj Teb | Cov kab hluav taws xob thiab cov khoom siv tswj hwm | Cov kev teeb tsa hluav taws xob (impedance, capacitance, attenuation), kev tiv thaiv zoo |
| IEC 60092-502 | Thoob ntiaj teb | Cov cuab yeej siv hauv dej hiav txwv | Kev tiv thaiv hluav taws, kev tiv thaiv, kev ruaj khov kho tshuab |
| IEEE 1580 | Thoob ntiaj teb | Cov cables marine thiab offshore | Kev tiv thaiv, kev tiv thaiv corrosion |
| UL 13 | Tebchaws Asmeskas Qaum Teb | Cov xov hluav taws xob txwv tsis pub siv hluav taws xob | Kev tiv thaiv hluav taws kub (VW-1), kev tsim kho |
| CSA C22.2 No. 214 | Canada | Cov xov hlau ntsuas | Kev tiv thaiv, kev sim nplaim taws |
| TIA/EIA-485 | Thoob ntiaj teb | Kev sib txuas lus RS485 | Qhia txog 120Ω impedance, twisted pair, shielding rau cov chaw suab nrov |
Cov Qauv Hluav Taws Xob Tseem Ceeb (EN 50288-7):
| Cov Qauv | Qhov Yuav Tsum Tau Ua | Vim Li Cas Nws Tseem Ceeb |
| Yam ntxwv Impedance | 100Ω, 120Ω, lossis 150Ω ± 5Ω | Kev xaus ntawm qhov sib phim - tiv thaiv kev xav rov qab |
| Capacitance (tsis sib npaug) | ≤200 pF/100m | Txwv cov teeb liab distortion ntawm kev khiav ntev |
| Kev txo qis | ≤20 dB/km @ 1 MHz | Txiav txim siab qhov ntev ntawm cable siab tshaj plaws |
| Kev Tiv Thaiv Zoo | ≥70 dB (nqi siab tshaj >90 dB) | Ntsuas kev tiv thaiv EMI |
Ntawm Dingzun Cable,peb cov xov hlau tiv thaiv tau tsim tawm raws li EN 50288-7 thiab lwm yam qauv tseem ceeb - nrog rau cov ntawv qhia txog kev xeem sau tseg rau kev txheeb xyuas.
- Yuav Ua Li Cas Xaiv Cov Cable Uas Muaj Cov Khoom Siv Tiv Thaiv Zoo
Siv daim ntawv teev npe no los teev cov xov hlau tiv thaiv kom raug rau koj daim ntawv thov.
Rooj 7: Daim Ntawv Teev Cov Khoom Siv Xaiv Cov Xov Tooj Uas Muaj Cov Khoom Tiv Thaiv
| Cov Qauv | Koj Qhov Yuav Tsum Tau Ua | Cov Kev Xaiv Dingzun |
| Tus naj npawb ntawm cov khub | _____ khub | 1 txog 100+ khub |
| Lub ntsuas hluav taws xob | _____ AWG | 18AWG txog 24AWG |
| Cov khoom siv hluav taws xob | Liab qab / Tinned | Tooj liab (tus qauv - tiv taus xeb) |
| Kev rwb thaiv tsev | PE / XLPE / PVC | PE (lub peev xwm qis) rau kev khiav ntev; PVC rau kev dav dav |
| Hom ntaub thaiv | Ntawv ci / Braid / Composite | Raws li EMI ib puag ncig (saib Rooj 2) |
| Kev npog braid (yog tias braid) | 70% / 85% / 95% | 85% tus qauv; 95% rau EMI siab |
| Tag nrho cov ntaub thaiv (ntau khub) | Yog / Tsis yog | Yog rau ntau tus khub (txo cov crosstalk) |
| Cov xov hlau ntws | Muaj / Tsis xav tau | Muaj nrog cov ntawv ci tiv thaiv (pom zoo) |
| Lub tsho loj tag nrho | PVC / LSZH / PUR | PVC (General), LSZH (kev nyab xeeb hluav taws), PUR (roj / puas) |
| Qhov ntsuas hluav taws xob | 300V / 600V / Lwm yam | 300V tus qauv; 600V rau kev siv hluav taws xob |
| Qhov kub thiab txias | _____ °C rau _____ °C | -40 ° C txog + 90 ° C tus qauv; -65 ° C txog + 200 ° C tus nqi siab |
| Qhov ntsuas nplaim taws | IEC 60332-1 / VW-1 / LSZH | Raws li qhov xav tau los ntawm cov cai hauv zos |
Ntawm Dingzun Cable,peb pab neeg ua haujlwm engineering muab kev sab laj dawb los pab koj xaiv hom kev tiv thaiv zoo tshaj plaws thiab kev tsim cov cable rau koj qhov chaw siv tshwj xeeb.
Txog Dingzun Cable: Koj Tus Khub Cable Uas Muaj Kev Tiv Thaiv
Nrog20+ xyoo ntawm kev tsim khoom tshwj xeeb,Dingzun Cableyog ib tus khub koom tes uas ntseeg siab rau cov chaw lag luam thoob ntiaj teb, cov tuam txhab engineering, thiab cov neeg koom ua ke uas xav tau cov khoom zoocov xov hlau tiv thaivrau kev xa xov tooj cua txhim khu kev qha hauv cov chaw muaj suab nrov. Peb muab kev txawj ntse EMI / RFI sib xyaw ua ke nrogkev hloov kho tau yooj yim heevkom xa cov cables uas tiv thaiv koj cov teeb liab tseem ceeb.
(Dingzun Cable shielded instrumentation cables)
Peb Cov Kev Pabcuam Cable Shielded Instrumentation:
| Muaj peev xwm | Cov Lus Qhia Tshwj Xeeb ntawm Dingzun |
| Hom Kev Tiv Thaiv | Ntawv ci (100%), Braid (70-95%), Composite (ntawv ci + braid) |
| Kev Tiv Thaiv Zoo | Ntawv ci: 60-90 dB (zaus siab); Braid: 40-80 dB (zaus qis); Composite:>90 dB(tag nrho spectrum) |
| Tus naj npawb ntawm cov khub | 1 txog 100+ khub |
| Tus Neeg Coj Hluav Taws Xob | 18AWG txog 24AWG |
| Cov Khoom Siv Conductor | Tooj liab qab, Tooj liab tinned (tus qauv) |
| Kev rwb thaiv tsev | PE (capacitance qis, ≤50 nF/km), XLPE, PVC |
| Yam ntxwv Impedance | 100Ω, 120Ω ± 5Ω (EN 50288-7) |
| Hlau ntws | Muaj xws li cov ntawv ci tiv thaiv |
| Lub Tsho Tag Nrho | PVC, LSZH, PUR (raws li xav tau) |
| Xim tsho loj | Dub, Grey, Xiav (tus qauv); Lub teeb xiav (IS circuits); Txhua yam RAL kev cai |
| Kub thiab txias | -40°C txog +90°C (tus qauv); -65°C txog +200°C (tus nqi siab) |
| Kev Ntsuas Hluav Taws | IEC 60332-1, VW-1, LSZH (IEC 60332-3) |
| Cov Ntawv Pov Thawj | ISO 9001: 2015, UL, CE, RoHS, REACH |
| Kev kuaj xyuas | 100% kev kuaj hluav taws xobntawm txhua lub reel |
Vim li cas Dingzun Cable rau Koj Cov Kev Xav Tau Cable Shielded Instrumentation:
- Kev tsim kho EMI tshwj xeeb— Peb pab koj xaiv hom tiv thaiv zoo rau koj qhov chaw suab nrov tshwj xeeb
- Kev tiv thaiv tiav ntau yam— Ntawv ci, xov paj, sib xyaw — txhua yam hauv tsev
- Kev hloov kho tau yooj yim heev— Suav cov khub, ntsuas qhov ntsuas, rwb thaiv tsev, lub tsho — ua tiav raws li qhov koj xav tau
- Cov ntaub ntawv pov thawj txog kev tiv thaiv zoo- Cov ntawv qhia txog kev xeem muaj rau kev txheeb xyuas
- Kev sib txuas lus ncaj qha rau cov kws tshaj lij- Cov lus hais sai, cov ntaub ntawv qhia txog kev siv tshuab, kev xa khoom thoob ntiaj teb
- Kev txhawb nqa daim ntawv thov— Cov lus qhia txog kev siv av, kev coj ua zoo tshaj plaws rau kev teeb tsa, kev daws teeb meem
Xav tau ib txoj hlua tiv thaiv uas tsim los rau koj qhov chaw EMI tshwj xeeb?
[Tiv tauj peb pab neeg kev tshaj lij hnub no kom tau txais kev sab laj dawb thiab kev hais nqe raws li koj xav tau].