Kev Siv Tshuab Hauv Kev Lag Luam

Cov Cable Gland Ua Haujlwm Li Cas?

Kev Taw Qhia
Cov qog cable yog cov cuab yeej tseem ceeb thaum xaus cov cables hauv qhov chaw hnyav lossis txaus ntshai.
Qhov no yog qhov uas kev sib khi, kev tiv thaiv ingress thiab vim li cas cable gland yog grounding yog qhov yuav tsum tau ua.
Nws lub luag haujlwm yog kom hla lub raj, xaim, lossis cable hla lub qhov kaw kom nyab xeeb.
Lawv muab kev nplij siab thiab kuj ua kom suav nrog cov nplaim taws lossis cov khoom hluav taws xob uas yuav tshwm sim hauv qhov chaw txaus ntshai.

Muaj dab tsi ntxiv:
Lawv kuj ua haujlwm ua lub foob, tiv thaiv cov khoom tsis huv sab nraud kom tsis txhob ua rau lub tshuab hluav taws xob thiab lub xov hlau puas tsuaj.
Qee cov tshuaj lom no yog:

• kua,
• av qias neeg,
• hmoov av

Thaum kawg, lawv tiv thaiv cov cables kom tsis txhob raug rub thiab ntswj tawm ntawm lub tshuab.
Qhov ntawd yog vim lawv pab muab kev sib txuas zoo thiab ruaj khov ntawm lub tshuab thiab cov xov hlau uas nws txuas nrog.

Hauv phau ntawv qhia no, peb yuav pab koj nkag siab zoo dua txog kev ua haujlwm ntawm cov cable glands.
Cia peb pib.

Cov Qog Cable Gland thiab Cov Qog Cable Gland
Cov kab hluav taws xob hu ua 'mechanical cable entry devices' uas siv ua ke nrog kev txuas hluav taws xob thiab cable rau:

• cov txheej txheem automation (piv txwv li cov ntaub ntawv, telecoms, fais fab, teeb pom kev zoo)
• hluav taws xob, cuab yeej siv thiab kev tswj hwm

Lub luag haujlwm tseem ceeb ntawm lub cable gland yog ua haujlwm ua lub cuab yeej sealing thiab terminating.
Nws ua kom muaj kev tiv thaiv ntawm cov chaw kaw thiab cov khoom siv hluav taws xob, suav nrog kev xa khoom ntawm:

• Kev sib khi ib puag ncig ntxiv

Ntawm qhov chaw nkag ntawm cov xov hlau, khaws qhov ntsuas kev tiv thaiv ntawm lub thawv nrog rau ntau yam khoom siv tsim nyog uas tau cog lus tias yuav ua lub hom phiaj no

Cov kab hluav taws xob hauv tshuab automation

• Kev sib khi ntxiv

Nyob rau thaj chaw ntawm lub cable tuaj txog ntawm lub enclosure, yog tias xav tau qib siab ntawm kev tiv thaiv ingress

• Lub zog tuav

Ntawm lub cable kom lav tau qib txaus ntawm cov khoom siv kho tshuab cable 'rub tawm' tsis kam

• Lub ntiaj teb txuas ntxiv mus

Nyob rau hauv cov ntaub ntawv ntawm ib tug armored cable, ib zaug lub cable gland nta ib tug hlau qauv.
Hauv qhov xwm txheej ntawd, cov cable gland yuav raug kuaj xyuas kom paub tseeb tias lawv tuaj yeem nyiaj tau qhov siab tshaj plaws ntawm qhov luv luv tam sim no.

• Kev tiv thaiv ib puag ncig

Los ntawm kev kaw lub hnab yas sab nraud, tsis suav nrog cov dej noo thiab hmoov av ntawm lub cuab yeej lossis lub thawv hluav taws xob

Koj pom:
Cov qog cable tuaj yeem ua los ntawm cov khoom tsis yog hlau mus rau cov khoom siv hlau.
Los yog nws tuaj yeem yog kev sib xyaw ntawm ob qho tib si uas kuj tseem yuav tiv taus corrosion.
Nws yog txiav txim siab los ntawm kev sau ua ke raws li tus qauv, lossis los ntawm kev kuaj xyuas corrosion.

Yog tias siv rau hauv qhov chaw tawg hauv qee qhov chaw, nws yog ib qho tseem ceeb uas cov qog cable tau pom zoo rau hom cable xaiv.
Lawv kuj yuav tsum tswj hwm qib kev tiv thaiv ntawm cov khoom siv uas lawv txuas nrog.

Ib qho zoo tshaj plaws txog cov cable glands yog tias lawv muaj IP68 dej tsis ua haujlwm.
Qhov ntawd txhais tau tias lawv tuaj yeem siv tau los ua cov chaw tawm dej tsis nkag los ntawm cov chaw kaw neeg hnyav thiab tsis zoo thiab los ntawm cov bulkheads.

Rau koj siv lawv:
Lub cable gland compresses ib lub foob rau hauv lub cable puag ncig.
Nws tiv thaiv cov khoom me me lossis dej nkag mus uas yuav ua rau puas tsuaj mus ib txhis rau cov khoom siv hluav taws xob.

Piv txwv li:
Yog tias koj xav tau txoj hlua khi rau ntawm lub thawv uas tsis muaj dej, koj yuav tsum tau khawb ib lub qhov rau hauv lub thawv.
Qhov ntawd ua rau nws tsis ntub dej ntxiv lawm.

Cov kab hluav taws xob ntawm lub thawv dej tsis muaj zog
Yuav kom kho koj qhov teeb meem, koj tuaj yeem siv lub cable gland los ua lub foob dej tsis pub dej nkag ncig koj lub cable uas koj tab tom hla mus rau hauv lub thawv.
Lub zog tiv thaiv dej IP68 zoo tagnrho rau cov cables ntawm 3.5 txog 8 millimeters hauv txoj kab uas hla.
Cov hom cable glands no yog ua los rau ntsia rau hauv ib sab ntawm lub qhov dej tsis muaj dej.

Cov Cheebtsam ntawm Cable Glands
Cov khoom ntawm lub cable gland yog dab tsi?
Qhov no yog ib lo lus nug uas koj yuav nug koj tus kheej.

Cov khoom ntawm cov kab mob
Cov ntu ntawm cov qog cable yog txiav txim siab raws li cov hom qog cable:

• ib qho kev sib txuas ntawm cov kab hluav taws xob thiab;
• ob chav compression cable gland

Cia peb tham txog txhua yam ntawm lawv.
Yog tias koj tseem tsis tau paub, ib lub cable gland compression raug siv rau cov cables uas muaj hlau tiv thaiv me me.
Lawv muaj qhov chaw rau cov pa roj corrosive thiab cov dej noo nkag mus thiab cuam tshuam rau lub cable.
Kev tsim qauv ib qho tsis muaj lub khob hliav qab thiab lub nplhaib khob hliav qab.

Koj pom:
Tsuas muaj Neoprene roj hmab foob uas muab kev txhawb nqa cov ntiv taw thaum koj txuas lub cable.
Thaum kawg, ib qho compression cable glands muaj:

• lub cev txiv ntoo
• lub cev qog
• lub tshuab ntxhua khaub ncaws tiaj tus
• xyuas lub txiv ntoo
• lub tshuab ntxhua roj hmab
• roj hmab foob thiab;
• neoprene

Cov ntawd yog cov khoom ntawm ib lub caj pas compression cable.
Yog li, peb puas tau txais qhov ntawd ncaj?

Nyob rau sab tod:
Ob chav compression muaj qhov sib txawv ntawm ib qho compression cable gland.

Qhov no txhais li cas?
Qhov zoo tshaj plaws ntawm no yog:
Lub caj pas cable ob chav compression yog siv qhov twg feem ntau cov xov hlau armored tau txais peb lossis nkag mus rau hauv lub rooj tsavxwm.
Cov hom cable glands no muab kev txhawb nqa ntxiv.
Ob chav compression cable glands muaj ob chav sealing feature.

Muaj dab tsi ntxiv?
Muaj kev sib txhuam ntawm lub plhaub sab hauv thiab lub cable armor.
Yog li ntawd, koj puas xav tau cov cable glands uas tiv taus hluav taws lossis huab cua?
Tom qab ntawd koj yuav tsum xav txog qhov kev tsim qauv ob npaug.

Nco ntsoov tias ob chav compression tsim muaj lub nplhaib cone thiab lub cone.
Qhov ntawd muab kev pab kho tshuab rau lub cable.
Tam sim no, tham txog cov ntu ntawm ob lub compression cable gland.
Nws muaj cov khoom hauv qab no:

• xyuas lub txiv ntoo
• roj hmab neoprene foob
• lub nplhaib cone
• lub khob hliav qab
• lub cev qog thiab;
• lub cev qog

Cov Lus Qhia Txog Cable Glands
Npaj yuav koj lub cable gland?
Tom qab ntawd koj yuav tsum nco ntsoov tias muaj ntau yam kev qhia tshwj xeeb ntawm cov cable gland uas koj yuav tsum xav txog.
Yog tias koj xav tau kev pab nrog cov lus qhia tshwj xeeb ntawm cable gland, ntawm no yog koj cov kev xaiv:

Khoom siv

• Hlau tsis xeb

Cov hlau tsis xeb cable glands yog corrosion thiab chemical resistant.
Lawv tuaj yeem muaj qhov ntsuas siab dua

• Hlau

Cov khoom yog ua los ntawm hlau.

• PVC

PVC kuj tseem hu ua polyvinyl chloride yog cov khoom siv dav dav.
Nws muaj qhov chaw du, yooj ywm, thiab tsis muaj tshuaj lom.
Muaj ob peb qib siv rau hauv cov txheej txheem tshuaj lom neeg thiab zaub mov vim yog qhov xwm txheej tsis ua haujlwm ntawm PVC.

• Polytetrafluoroethylene (PTFE)

Koj puas paub tias Polytetrafluoroethylene yog ib qho tshuaj uas tsis muaj peev xwm piav qhia tau?
Yog li ntawd, qhov taw tes yog dab tsi?
Zoo, nws ua pov thawj tias nws tiv taus tshuaj lom neeg thiab tsis muaj kev sib txhuam ntau.

• Polyamide / Nylon

Nylon yog tsim los ntawm ntau qib ntawm polyamides.
Nws yog ib yam khoom siv dav dav hauv ntau yam kev siv.
Nws yog resistant thiab tawv thiab muaj qhov ntsuas siab zoo heev.

• Tooj dag

Lub caij no, cov bras tuaj nrog lub zog zoo.
Nws kuj muaj cov yam ntxwv:

• zoo heev kub ductility
• kev ua kom txias txias zoo
• tsis tshua muaj zog magnetic permeability
• cov khoom zoo bearing
• zoo kawg nkaus corrosion tsis kam thiab;
• kev coj ua zoo

• Aluminium

Aluminium yog ib qho xiav-dawb malleable, ductile lub teeb trivalent hlau.
Nws muaj kev thermal thiab hluav taws xob zoo heev.
Nws kuj tseem muaj kev tiv thaiv rau oxidation thiab kev cuam tshuam siab

Kev ua tau zoo
Koj kuj yuav tsum xav txog kev ua haujlwm ntawm koj cov hom cable gland.
Hauv qab no, peb tau teev cov cheeb tsam uas koj yuav tsum nco ntsoov.

• Kub thiab txias

Qhov no yog qhov ntsuas kub ntawm ambient operating temperature uas xav tau.

• Kev Ntsuas Siab

Qhov no yog lub siab uas lub cable gland tuaj yeem nyiaj tau yam tsis muaj kev xau.

• Qhov Qhib Txoj Kab uas hla

Qhov no yog qhov kev xaiv ntawm qhov ntau thiab tsawg uas lub cable gland tuaj yeem haum.

• Tus naj npawb ntawm cov xov hlau

Qhov no yog tus naj npawb ntawm cov khoom uas lub rooj sib txoos tuaj yeem ua tau.

• Qhov Loj ntawm Kev Teeb Tsa

Qhov no yog qhov loj ntawm qhov mounting lossis xov feature.

Kev Txhim Kho Cable Gland
Kev teeb tsa cov cable gland yuav tsum tau ua thaum ua raws li cov cai tsim nyog thiab cov cai hauv zos.
Nws yuav tsum ua raws li cov lus qhia ntawm tus neeg tsim khoom thiab.
Kev teeb tsa lub cable gland yuav tsum tau ua los ntawm ib tus neeg muaj peev xwm thiab muaj kev paub dhau los.
Nws yuav tsum muaj kev paub tsim nyog thiab muaj kev txawj ntse hauv kev teeb tsa cable gland.
Tsis tas li ntawd xwb, kev cob qhia yuav ua tau yooj yim dua.

Kev teeb tsa ntawm lub cable gland armored nrog earthing tag
Cov lus qhia hauv qab no yuav pab koj kom paub tseeb tias kev teeb tsa koj lub cable gland lav qhov kev sib txuas txhim khu kev qha thiab muaj kev nyab xeeb.
Nov yog yam koj yuav tsum ua:

• Yuav tsum tau ceev faj kom tsis txhob muaj kev puas tsuaj rau cov xov nkag thaum teeb tsa thiab txhim kho cov qog cable

• Tsis txhob nruab cov cable glands thaum lub circuits tseem nyob.

Ib yam li ntawd, tom qab muab hluav taws xob rau cov voj voog hluav taws xob, cov cable glands yuav tsum tsis txhob qhib kom txog thaum lub voj voog tau raug tshem tawm hluav taws xob kom muaj kev nyab xeeb.

• Cov khoom siv cable gland tsis zoo sib xws nrog cov ntawm lwm tus neeg tsim khoom ntawm cable gland.

Cov khoom ntawm ib yam khoom siv tsis tuaj yeem siv rau lwm yam khoom.
Ua li ntawd yuav cuam tshuam rau kev nyab xeeb ntawm kev teeb tsa cable gland thiab tshem tawm daim ntawv pov thawj tiv thaiv kev tawg.

• Nco ntsoov tias lub cable gland tsis yog ib yam khoom uas tus neeg siv yuav tsum tau kho.

Nws kuj tseem nyob hauv qab cov txheej txheem pov thawj.
Tsis pub muab cov khoom seem rau cov khoom uas tau muab tso rau hauv kev pabcuam lawm.

• Cov nplhaib kaw ntawm cov cable gland raug ntxiv rau hauv cov cable gland yog tias xa tawm los ntawm lub hoobkas.

Koj pom, yuav tsum tsis muaj qhov xwm txheej twg uas cov nplhaib foob yuav tsum tau tshem tawm ntawm lub caj pas cable.

• Yuav tsum tau ceev faj kom tsis txhob raug cov khoom siv foob pob hluav taws xob rau:

cov tshuaj lom neeg uas tsis zoo (xws li cov kuab tshuaj lossis lwm yam khoom txawv teb chaws)
av qias neeg

Kev Qhia Txog Kev Txhim Kho
Nco ntsoov tias nws tsis yog qhov yuav tsum tau ua kom koj rhuav tshem lub cable gland ntxiv lawm, raws li tau piav qhia hauv qab no:

Yuav pib lub cable gland installation, ntawm no yog yam koj yuav tsum ua:
1. Cov khoom sib cais (1) thiab (2).
2. Yog tias xav tau, muab ib daim ntaub thaiv rau saum koj lub xov hlau sab nraud
3. Tswj cov xov hlau los ntawm kev tshem tawm cov hnab sab nraud ntawm cov xov hlau thiab cov cuab yeej ua rog/xov kom haum rau cov qauv ntawm cov khoom siv.
4. Tshem tawm 18 millimeters ntxiv ntawm lub hnab sab nraud kom pom lub cuab yeej ua rog.
5. Yog tias siv tau, tshem tawm cov ntaub qhwv lossis daim kab xev kom pom lub hnab sab hauv.
CEEB TOOM!! Ntawm cov xov hlau loj tshaj plaws, lub nplhaib clamping tsuas yog hla dhau lub cuab yeej ua rog xwb.

6. Tom qab ntawd, khi lub khoom nkag rau hauv koj cov khoom siv raws li qhia.

7. Dhau koj lub xov hlau hla cov khoom nkag thiab qhov chaw ntawm lub cuab yeej lossis braid sib npaug zos nyob ib ncig ntawm lub khob hliav qab.
8. Thaum thawb lub xov hlau mus tom ntej kom tiv thaiv kev sib cuag ntawm lub khob hliav qab thiab lub cuab yeej ua rog, zawm lub txiv ntoo los ntawm tes kom koom nrog lub cuab yeej ua rog.
9. Tuav qhov nkag nrog rau lub spanner thiab nruj lub txiv ntoo nrog kev pab los ntawm lub spanner kom txog thaum lub cuab yeej ruaj khov.
10. Qhov kev teeb tsa tam sim no tiav lawm.

Yog tias koj xav tau lub cable gland IP68 uas tsis muaj dej tsis nkag, ntawm no yog qhov koj tuaj yeem ua tau.
Koj pom:
Hom cable gland no ua rau nws yooj yim thiab du khiav hla lub qhov kaw.
Koj yuav tsum tau tho ib lub qhov uas muaj txoj kab uas hla 15.6 millimeters rau hauv ib sab ntawm koj lub thawv.
Tom qab ntawd koj tuaj yeem ntsia ob lub halves ntawm koj lub cable gland rau hauv ob sab ntawm lub qhov.
Tam sim no, lub cable khiav hla, thiab koj tig lub hau kom nruj nws ncig koj lub cable.
Thiab koj ua tiav lawm.

Xaus lus
Cov kab hluav taws xob tau tsim los siv nrog cov kab hluav taws xob uas tsis muaj hlau lossis hlau uas muaj hlau.
Yog tias siv nrog cov xov hlau armored, lawv muab av av rau kev tsim cable.
Lub nplhaib nias lossis lub nplhaib O-ring sealing tuaj yeem nruj nyob ib puag ncig lub cheeb ntawm lub cable.
Nws kaw cov nplaim taws, hluav taws xob lossis cov dej ntws kom tsis txhob los rau ntawm cov tshuab uas lub cable coj mus.
Lawv tuaj yeem ua los ntawm ntau yam yas thiab hlau, nyob ntawm lawv daim ntawv thov.
Cov no yuav yog:

• txhuas
• tooj dag
• yas los yog
• hlau tsis xeb

Vim tias lawv tau ua nrog kev nyab xeeb hauv siab, nws yog ib qho tseem ceeb uas cov cable glands coj ib lossis ntau qhov kev ntsuas kev nyab xeeb hluav taws xob hauv qab no.
Ib txhia ntawm cov no yog:

• IECx
• ATEX
• CEC
• NEC
• los yog ib yam li ntawd nyob ntawm lub tebchaws keeb kwm thiab kev siv

Yog li ntawd, yog tias koj xav tau cov cable glands, nws yog ib qho tseem ceeb uas koj yuav tsum tau ua kom lawv loj me me.
Qhov ntawd yog vim tias tsuas yog ib txoj hlua siv tau nrog ib lub qog.
Thiab lub foob yuav tsum tau ua nrog o-ring suav nrog.
Tsis yog nrog lwm cov ntsiab lus uas tus neeg siv yuav qhia zoo li daim kab xev.

Koj yuav pom ntau cov qog muag tau ntawm ntau lub chaw tsim khoom sib txawv.
Koj tuaj yeem nrhiav me ntsis hauv online thiab tsim cov npe ntawm cov neeg muag khoom hauv zos lossis cov chaw tsim khoom kom tau txais qhov kev thov zoo tshaj plaws.
Peb vam tias peb tau nthuav qhia koj cov ntaub ntawv muaj txiaj ntsig txog kev ua haujlwm ntawm cov cable glands.
Koj xav li cas txog qhov kev tshaj tawm no?
Qhia koj txoj kev xav rau peb los ntawm kev xa koj cov lus rau peb!
Yog tias koj muaj lus nug txog seb cov cable glands ua haujlwm li cas lossis yog tias koj xav paub ntau ntxiv, nug hauv cov lus.
Koj yuav tau txais cov lus teb los ntawm cov kws tshaj lij kev ua lag luam sai sai no.