Txuj ci

Raws li 5G fronthaul tes hauj lwm nthuav dav thiab cov ntaub ntawv chaw sib cuam tshuam kev sib txuas bandwidth yuav tsum tau nce ntxiv, qhov kev thov rau ntau dua fiber ntau suav nyob rau hauv qhov chaw qis qis yog loj hlob sai. Slotted core optical cable offers a proven structural approach to achieving high fiber density, efficient splicing, and reliable mechanical protection in a compact cable diameter.

Phau ntawv qhia no suav nrog cov qauv, hom tseem ceeb, kev siv, thiab kev xaiv xaiv rau cov tub ntxhais cable, nrog rau ib sab -los ntawm - sab piv nrogxoob tube fiber optic cablelos pab engineers ntsuam xyuas txoj kev xaiv rau lawv tej yaam num.

Dab tsi yog Slotted Core Optical Cable?

Ib qho slotted core optical cable - tseem hu ua slotted core ribbon fiber optic cable - siv ib qho nyuaj lossis semi-rigid polyethylene core nrog precision- tsim longitudinal grooves ua thawj vaj tse rau optical fiber ribbons. Cov tub ntxhais no yog extruded nyob ib ncig ntawm lub hauv paus muaj zog cov tswv cuab, uas tej zaum yuav yog ib tug siab - lub zog steel hlau los yog ib tug uas tsis yog -metallic FRP (fiber- cov yas reinforced) pas nrig, nyob ntawm seb daim ntawv thov.

Raws liITU-TKev pom zoo L.101, fiber ntau optical lossis fiber ntau ribbons tuaj yeem muab tso rau hauv cov qauv hauv cov qauv tsim los muab kev sib cais ntawm cov khoom siv sab nraud. Cov slots tuaj yeem ua raws li helical lossis SZ (rov qab oscillation) stranding qauv. Ntau qhov fiber ntau ribbons yog stacked nyob rau hauv txhua qhov, thiab ntau qhov chaw nyob ib ncig ntawm cov tub ntxhais ua ke kom ua tiav tag nrho cov fiber ntau suav.

Cov kab hluav taws xob feem ntau ua tiav nrog dej- thaiv txheej (kab kab xev lossis qhov sib xyaw, nyob ntawm tus qauv tsim), ib qho txhuas- yas lossis hlau- yas laminated daim kab xev rau kev tiv thaiv noo noo, thiab polyethylene txheej txheej. Cov kev tsim kho tshwj xeeb - suav nrog sheath thickness, armor hom, thiab dej- thaiv txoj kev - txawv ntawm cov chaw tsim khoom thiab cov khoom specification.

Yuav ua li cas ib tug Slotted Core Cable yog Structured

Qhov yooj yimkab qauvntawm ib tug slotted core tsim muaj xws li ob peb txheej tseem ceeb, ua hauj lwm los ntawm qhov chaw sab nraud:

• Central zog tswv cuab:Hlau hlau (rau metallic designs) los yog FRP pas nrig (rau txhua yam -dielectric designs). Cov khoom no nqa cov tensile loads thiab tswj cov kab ke kev ruaj ntseg thaum lub sij hawm installation thiab kev pab cuam.
• Slotted Core:Lub cev polyethylene extruded nrog qhov sib npaug ntawm qhov sib npaug ntawm cov txheej txheem hauv cov qauv helical lossis SZ nyob ib ncig ntawm lub hauv paus muaj zog cov tswv cuab. Cov grooves tuav lub fiber ribbons nyob rau hauv txoj hauj lwm thiab muab lateral mechanical tiv thaiv.
• Fiber ntau ribbons:Ntau cov fibers optical sib koom ua ke ntawm ib sab rau hauv cov kab ncaj nraim. Txhua lub qhov yuav muaj ib pawg ntawm ntau ribbon. Ribbon hom muaj xws li cov pa ib puag ncig- cov hlua khi thiab cov hlua khi ib nrab (hloov tau) ribbons, txhua tus muaj qhov sib txawv ntawm kev tuav thiab sib txuas. Yog xav paub ntxiv txog ribbon technology, saib pebribbon fiber ntau optic cable qhia.
• Dej- thaiv txheej:Nyob ntawm tus qauv tsim, qhov no tej zaum yuav yog dej swellable - thaiv daim kab xev thiab xov paj (hauv qhuav- qauv tsim) lossis dej- thaiv qhov sib xyaw (hauv gel- cov qauv tsim). Ob txoj hauv kev no ua haujlwm tib lub hom phiaj - tiv thaiv kev tsiv dej mus ntev - tab sis txawv ntawm kev tuav thiab kev huv thaum npaj teb. Kawm paub ntxiv txogdej- thaiv txoj hauv kev hauv cov kab hluav taws xob kho qhov muag.
• Laminated daim kab xev thiab txheej txheej:Ib qho txhuas-yas lossis steel- cov ntaub ntawv yas sib xyaw muab cov dej noo ntxiv thiab cov khoom thaiv, ua raws li polyethylene (PE) txheej txheej. Qee cov qauv siv LSZH (tsawg pa luam yeeb xoom xoom halogen) cov ntaub ntawv siv rau sab hauv tsev lossis qhov av.

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Main Hom Slotted Core Optical Cable

Slotted core cables tsis yog ib qho khoom sib xws. Ob peb qhov tseem ceeb ntawm kev tsim qauv txiav txim siab seb lub cable tshwj xeeb yuav ua li cas hauv ib daim ntawv thov:

Stranding qauv: Helical vs SZ.Helical stranding qhwv cov grooves tsis tu ncua nyob rau hauv ib qho kev taw qhia. SZ stranding alternates cov kev taw qhia ntawm lub sij hawm tsis tu ncua, uas feem ntau pom tau tias yooj yim dua rau nruab nrab - ncua kev nkag - cable tuaj yeem qhib ntawm cov ntsiab lus nruab nrab yam tsis tau txiav tag nrho ntev. Qhov kev xaiv ntawm helical thiab SZ tuaj yeem cuam tshuam rau nruab nrab -span branching yooj yim thiab nyob ntawm tus neeg tsim khoom tsim.

Cov tswv cuab muaj zog: Hlau vs tag nrho -dielectric.Cables nrog steel central lub zog cov tswv cuab muaj lub zog tensile siab thiab muaj nyob rau hauv dav dav duct thiab ncaj qha - daim ntaub ntawv faus. Tag nrho -dielectric designs siv FRP feem ntau tau teev tseg qhov twg cov khoom siv hlau tsis xav tau - piv txwv li, ze rau siab - cov kab hluav taws xob hluav taws xob lossis hauv xob laim - thaj chaw muaj kev cuam tshuam. Nco ntsoov tias qhov tsim nyog rau co- kev teeb tsa nrog cov cables fais fab yog nyob ntawm cov kev cai hauv zos, qib voltage, kev sib cais, thiab cov kev xav tau hauv av, tsis yog nyob ntawm cable lub zog dielectric.

Kev thaiv dej: Qhuav-core vs gel- puv.Ntau cov niaj hnub slotted core ribbon cables siv cov tub ntxhais qhuav qhuav, tso siab rau cov ntaub nplaum thiab cov xov paj rau cov dej thaiv. Txoj hauv kev no ua kom yooj yim rau kev npaj teb vim tias cov kws tshaj lij tsis tas yuav ntxuav cov gel ntawm cov ribbons ua ntej splicing. Gel- cov qauv tsim muaj nyob rau hauv kev siv thiab tuaj yeem muab cov txiaj ntsig zoo hauv ib puag ncig tshwj xeeb. Cov dej tiag tiag- thaiv kev ua tau zoo yuav tsum ua raws li cov kev ntsuas cuam tshuam hauv IEC 60794 series.

Ribbon hom: Pas vs yoog raws.Cov paib (ntug-bonded) ribbons yog cov khoom tiaj tus. Cov hlua khi ib nrab lossis hloov tau yooj yim tuaj yeem quav lossis yob rau hauv ib qho kev sib cog lus ntau dua -section, uas yuav tso cai rau cov fiber ntau ntau dua hauv tib lub qhov. ITU-T L.101 lees paub tias fiber ntau ribbons tuaj yeem siv ntau hom qauv, suav nrog ntug- sib khi thiab ntim khoom.

Kev siv ntawm Slotted Core Optical Cable

Slotted core cables yog siv feem ntau qhov twg cov fiber ntau suav, compact cable diameters, thiab muaj txiaj ntsig zoo splicing yog qhov tseem ceeb:

Metropolitan nkag mus thiab faib network.Lub nroog duct infrastructure feem ntau muaj qhov txwv tsis pub muaj peev xwm. Siab - suav slotted core cables - feem ntau nyob rau hauv thaj tsam ntawm 144 mus rau 576 fibers lossis siab dua - tso cai rau cov neeg ua haujlwm nce fiber ntau hauv cov kav dej uas twb muaj lawm yam tsis muaj kev ua haujlwm loj. Qhov no yog qhov tshwj xeeb tshaj yog nyob rau hauv kev kho dua tshiab rau cov zej zog tsim thiab hauv kev faib tawm tshiab los ntawmduct-cov kab hluav taws xob teeb tsarau cov tsev.

Metro aggregation thiab caj qaum txuas.Ntawm cov txheej txheem sib sau ua ke, qhov twg ntau qhov kev nkag mus rau cables sib koom ua ke, slotted core ribbon cables pab kom ceev ceev splicing thiab kev tswj fiber ntau hla siab - suav splice kaw.

Data center campus interconnects.Short to medium distance links between data center buildings benefit from the high fiber density and rapid termination that ribbon-based slotted core cables provide. Rau kev nthuav dav cov ntaub ntawv chaw cabling cov tswv yim, saib pebdata center txuas kev daws teeb meem.

Kev xaav dav hlau.Nrog tsim nyogaerial kabtsim - xws li daim duab-8 configurations nrog integrated messenger xov hlau - slotted core cables kuj yuav deployed rau overhead txoj kev.

Qhov zoo ntawm Slotted Core Optical Cable

High fiber ceev nyob rau hauv ib tug compact txoj kab uas hla.Los ntawm stacking ntau fiber ntau ribbon nyob rau hauv txhua qhov zawj, slotted cores tuaj yeem ua rau ntau pua lossis ntau txhiab fibers hauv ib qho me me hla-section. Qhov tseeb txoj kab uas hla yog nyob ntawm fiber ntau suav, ribbon hom, slot suav, thiab sheath tsim. Feem ntau, lub siab - suav slotted core ribbon cable tuaj yeem ua tiav ib txoj kab uas hla me dua li lub raj xoob ntawm cov fiber ntau suav thiab cov khoom ntsuas ntsuas - tab sis kev sib piv ncaj qha yuav tsum yog raws li tib lub chaw tsim khoom tshwj xeeb hauv kev tsim qauv sib piv.

Mechanical tiv thaiv los ntawm cov qauv slotted.Cov grooves nyob rau hauv cov tub ntxhais slotted ua raws li discrete raws uas lub cev cais fiber ntau ribbons los ntawm sab nraud rog. Thaum lub cable raug rau sab nraud los yog cuam tshuam, cov tub ntxhais slotted thiab lub hauv paus muaj zog cov tswv cuab nqus tau ntau ntawm cov load ua ntej nws mus txog cov fibers. Qhov kev tiv thaiv qib yog nyob ntawm qhov kev sib tsoo thiab qhov cuam tshuam ntawm cov kev ntsuas raws li kev ntsuas raws li IEC 60794 cov kev xav tau - cov txiaj ntsig sib txawv los ntawm cov khoom tsim, thiab yuav tsum tau lees paub tiv thaiv cov ntaub ntawv cuam tshuam.

Muaj txiaj ntsig loj splicing.Fiber ribbons yog tsim los rau huab hwm coj fusion splicing, qhov twg ntau fibers nyob rau hauv ib tug ribbon yog ua raws thiab fused nyob rau hauv ib tug ua hauj lwm. Rau tus qauv 12-fiber ribbon, qhov no txhais tau tias 12 fibers tuaj yeem koom ua ke ib zaug siv cov ribbon fusion splicer sib xws. Qhov no tuaj yeem txo cov sij hawm sib txuas piv rau ib qho - fiber ntau txoj kev, tshwj xeeb tshaj yog nyob rau hauv high-count cables nrog ntau cov ntsiab lus splice. Rau cov lus qhia ntxaws ntxaws, saib pebUa tiav cov lus qhia rau fiber optic splicing.

Kev tswj hwm fiber ntau.Vim tias cov ribbons zaum hauv cov grooves uas muaj xim zoo ib yam -coded lossis lej, cov kws tshaj lij tuaj yeem nrhiav thiab rho tawm cov ribbon tshwj xeeb yam tsis muaj kev cuam tshuam rau lwm tus ntawm cov cable. Ntawm SZ-stranded designs, nruab nrab- ncua kev nkag tau yooj yim dua vim hais tias cov slots tuaj yeem qhib ntawm cov ntsiab lus thim rov qab.

Longitudinal dej thaiv.Txawm hais tias los ntawm qhuav swellable cov ntaub ntawv los yog gel filling, slotted core cables yog tsim los txwv tsis pub dej tsiv teb tsaws raws li cable ntev. Qhov no yog ib qho tseem ceeb rau kev teeb tsa sab nraum zoov uas cov ntaub puas los ntawm khawb- kev ua si los yog nas tuaj yeem ua rau cov kab txuas sab hauv kom ya raws. Qhov tseeb dej nkag mus ua haujlwm yuav tsum ua kom tau raws li qhov yuav tsum tau teev tseg hauv cov qauv siv cable thiab cov ntaub ntawv cov khoom.

Slotted Core Cable vs Loose Tube Cable

Ob qho tib si slotted core thiab xoob tube tsim tau dav siv nyob rau hauv cov nroj tsuag sab nraud, tab sis lawv txawv li cas fibers nyob thiab tswj. Cov lus hauv qab no qhia txog qhov sib txawv tseem ceeb, txawm hais tias kev ua tau zoo tiag tiag nyob ntawm cov khoom tsim tshwj xeeb:

Tsis yog tus tsim yog universally superior. Qhov kev xaiv yog nyob ntawm qhov xav tau ntawm fiber ntau, splicing workflow nyiam, duct qhov chaw txwv, txoj hauv kev, thiab muaj cov cuab yeej siv tau zoo thiab cov neeg ua haujlwm raug cob qhia. Yog xav paub ntxivxoob tube cable xaiv, mus saib peb cov nplooj ntawv khoom.

Yuav Ua Li Cas Xaiv Txoj Cai Slotted Core Cable

Xaiv ib tug slotted core cable yuav tsum txuam cov cable specification rau txoj kev, ib puag ncig, thiab network yuav tsum tau. Cov laj thawj hauv qab no tsim nyog ntsuas:

Fiber suav thiab txoj kev loj hlob.Txiav txim siab qhov xav tau fiber ntau rau kev xa tawm thawj zaug thiab npaj rau lub peev xwm yav tom ntej. Slotted core ribbon cables yog qhov zoo tshaj plaws ntawm kev suav fiber ntau (feem ntau yog 144 fibers thiab siab dua), qhov twg loj splicing thiab compact inch yog cov txiaj ntsig tseem ceeb.

Txoj kev teeb tsa.Paub meej tias lub cable puas yuav raug ntsia rau hauv cov kav dej, ncaj qha - faus, lossis xa mus rau saum huab cua. Txhua txoj kev yuav xav tau ntau hom sheath, armor configurations, thiab mechanical ratings. Rau kev teeb tsa cov kav dej, cov kab hluav taws xob sab nraud txheeb ze rau qhov muaj cov duct bore yog ib qho kev npaj tseem ceeb.

Lub zog cov tswv cuab hom.Xaiv ntawm nws yog xim hlau (steel) thiab tag nrho -dielectric (FRP) raws li txoj kev ib puag ncig. Tag nrho -dielectric designs feem ntau teev nyob ze ntawm lub zog hluav taws xob, tab sis ib txwm txheeb xyuas kev ua raws li cov cai hauv zos thiab cov kev cai sib cais.

Dej- thaiv txoj hauv kev.Yog tias lub sijhawm npaj ua teb thiab kev huv huv yog qhov tseem ceeb, qhov qhuav - qauv tsim zam tsis tas yuav tsum tau ntxuav cov gel. Yog tias lub cable yuav raug xa mus rau hauv cov xwm txheej uas muaj kev pheej hmoo dej ntau thiab lub sijhawm kho lub sijhawm ntev, gel - cov qauv tsim tuaj yeem muab cov dej noo ntxiv. Paub meej txog qhov kev ntsuam xyuas dej nkag mus rauIEC60794 ua.

Ribbon hom compatibility.Xyuas kom tseeb tias cov ribbon hom siv nyob rau hauv lub cable yog sib xws nrog cov khoom siv splicing muaj nyob rau hauv pab neeg installation. Tsis yog txhua tus ribbon fusion splicers tuav ib feem sib koom ua ke (hloov tau) ribbons zoo ib yam li cov paib ribbon. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum sib koom ua ke nrog cov tes hauj lwm uas twb muaj lawm uas siv ntau hom ribbon sib txawv.

Kev ntsuas kub thiab kev ntsuas ib puag ncig.Kev khiav hauj lwm kub sib txawv raws li cov khoom - raug qhov tseem ceeb ntawm −30℃rau +60℃lossis −40℃rau +70 degree, nyob ntawm seb cov cable tsim tshwj xeeb. Ib txwm txheeb xyuas qhov ntsuas kub ntawm kev ua haujlwm, UV tsis kam, thiab lwm yam kev ntsuas ib puag ncig tiv thaiv cov chaw tsim khoom cov ntaub ntawv rau cov qauv tseeb raug txiav txim siab.

Cov qauv thiab kev sim.Paub meej tias cov cable ua tau raws li cov qauv hauv tebchaws thiab thoob ntiaj teb, xws li ITU-T L.101 rau cov qauv siv cable thiab IEC 60794-1-31 rau cov qauv kev sim tshuab. Thov cov ntaub ntawv xeem rau tensile load, crush, cuam tshuam, khoov, thiab kub cycling raws li muaj feem xyuam rau cov kev npaj rau installation.

Kev txwv thiab kev txiav txim siab ntawm kev teeb tsa

Thaum slotted cores muab cov txiaj ntsig zoo rau siab - daim ntawv thov ceev, ntau qhov ua tau zoo tsim nyog tau txais kev saib xyuas thaum npaj thiab teeb tsa:

Kev nruj thiab qhov qis qis qis qis.Cov txheej txheem nruj me ntsis tuaj yeem ua rau cov cables no tsis tshua muaj kev hloov pauv ntau dua li cov qauv xoob xoob sib piv, tshwj xeeb tshaj yog cov suav fiber ntau dua. Qhov yuav tsum tau khoov tsawg kawg nkaus yuav tsum tau ua nruj me ntsis thaum lub sij hawm installation thiab fiber cia kom tsis txhob muaj micro- dabtsi yog khoov poob. Tshawb xyuas cov khoom tshwj xeeb qhov zoo li qub thiab dynamic khoov vojvoog specifications.

Cov cuab yeej tshwj xeeb thiab kev cob qhia.Qhib lub qhov txuas txuas txuas yuav tsum muaj lub hom phiaj -tsim cov cuab yeej ua raws li qhov kev taw qhia zawj. Kev siv cov cuab yeej tsis raug lossis kev quab yuam ntau dhau tuaj yeem ua rau cov hlua fiber ntau puas. Kev teeb tsa cov neeg ua haujlwm tsis paub nrog cov tub ntxhais txuas txuas yuav xav tau kev cob qhia ntxiv ua ntej xa mus.

Splicing khoom peev.Mass fusion splicing yuav tsum tau ib tug ribbon splicer, uas yog ib tug tshwj xeeb thiab feem ntau kim khoom ntawm ib tug - fiber ntau splicer. Cov phiaj xwm yuav tsum suav nrog cov cuab yeej siv thiab qib kev txawj ntawm pab pawg splicing.

Splice kaw compatibility.Siab - suav ribbon cables tsim cov ribbon loj loj uas yuav tsum tau npaj nyob rau hauv splice kaw. Tsis yog txhua hom kaw tau tsim los ua kom haum rau cov tais ribbon. Txheeb xyuas qhov kev sib raug zoo kaw nrog cov ribbon tshwj xeeb suav thiab kab inch ua ntej xaj.

Fiber tswj complexity.Raws li kev suav fiber ntau nce - piv txwv li, dhau 576 lossis 1000 fibers - tswj cov kab ke fiber ntau, txheeb xyuas tus kheej ribbon, thiab teeb tsa cov ntsiab lus splice ua ntau dua. Ua tib zoo sau daim ntawv lo, cov ntaub ntawv, thiab ua tau zoo -cov txheej txheem kev sib txuas yog qhov tseem ceeb.

Tsis tas li raug nqi - zoo rau cov suav fiber ntau.Rau txoj kev uas yuav tsum tau tsawg dua 96 lossis 144 fibers, tus qauv xoob raj cable yuav yooj yim dua thiab raug nqi ntau dua - zoo. Qhov zoo ntawm slotted core kev tsim kho yog pom tseeb tshaj plaws thaum fiber ntau ntom thiab huab hwm coj splicing efficiency ncaj qha cuam tshuam qhov project nqi thiab lub sijhawm.

Cov lus nug nquag

Dab tsi yog qhov txawv ntawm ib lub qhov txuas txuas thiab lub raj xoob cable?

Nyob rau hauv ib tug slotted core cable, fiber ribbons zaum nyob rau hauv grooves machined rau hauv ib tug nruj polyethylene core. Nyob rau hauv ib tug xoob tube cable, fibers los yog ribbons yog loosely muaj nyob rau hauv ib tug neeg tsis muaj raj tso tseg nyob ib ncig ntawm lub hauv paus ntsiab lus. Txoj hauv kev zoo tshaj plaws yog qhov zoo tshaj plaws rau siab - suav ribbon daim ntaub ntawv qhov twg loj splicing thiab compact txoj kab uas hla yog qhov tseem ceeb, thaum lub raj xoob tsim muaj ntau dua thiab siv nyob rau hauv ntau ntau ntawm fiber ntau suav thiab daim ntaub ntawv.

Dab tsi fiber suav muaj nyob rau hauv slotted core optical cables?

Slotted core cables feem ntau muaj nyob rau hauv fiber ntau suav txij li 72 mus txog ntau txhiab fibers, nyob ntawm cov chaw tsim khoom. Feem ntau siv suav suav suav suav nrog 144, 288, 432, 576, 864, thiab 1728 fibers. Qee cov tuam txhab tsim qauv tsim ntau dua 3000 fibers siv cov cuab yeej hloov tau yooj yim. Cov suav muaj nyob ntawm seb muaj pes tsawg lub qhov, ribbon fiber ntau suav, thiab ribbon stacking ceev hauv cov khoom tsim tshwj xeeb.

Puas tuaj yeem siv cov tub ntxhais cables rau kev teeb tsa huab cua?

Yog lawm, cov tub ntxhais cables tuaj yeem tsim kho rau kev xa tawm dav hlau siv daim duab -8 tus qauv tsim nrog cov hlau sib xyaw lossis FRP cov xaim xov hlau, lossis los ntawm lashing tus qauv duct-type cable rau tus tub txib uas twb muaj lawm. Qhov tshwj xeebaerial kabtsim yuav tsum suav rau cua load, dej khov loading, ncua ntev, thiab ib puag ncig raug cuam tshuam rau txoj kev.

Puas slotted cores xav tau cov khoom tshwj xeeb splicing?

Yog lawm. Vim hais tias slotted tub ntxhais cables tsev fiber ntau ribbons, huab hwm coj fusion splicing yog tus qauv qauv. Qhov no yuav tsum muaj ribbon fusion splicer muaj peev xwm tuav cov kab dav dav (piv txwv li, 4-fiber, 8-fiber, lossis 12-fiber ribbon). Sim splice ribbons nrog ib leeg-fiber splicer yog technically ua tau tab sis tsis tshua muaj txiaj ntsig thiab tshem tawm lub sijhawm txuag kom zoo dua ntawm kev tsim kho ribbon.

Yuav ua li cas cov qauv siv rau slotted core optical cables?

Cov qauv thoob ntiaj teb tseem ceeb suav nrog ITU-T Kev Pom Zoo L.101, uas piav qhia txog cov qauv siv kho qhov muag fiber ntau suav nrog cov qauv hauv cov qauv, thiab covIEC60794 series, uas suav nrog cov kev sim rau kev siv tshuab, ib puag ncig, thiab kev ua haujlwm kho qhov muag. Cov qauv hauv tebchaws kuj tseem siv tau nyob ntawm lub tebchaws uas xa mus. Nco ntsoov thov cov ntaub ntawv qhia ua raws li cov qauv tshwj xeeb xav tau rau qhov project.

Puas yog slotted cores haum rau faus ncaj qha?

Slotted core cables tuaj yeem tsim los rau faus ncaj qha thaum nruab nrog cov cuab yeej tsim nyog - xws li corrugated steel daim kab xev lossis steel hlau armor - thiab lub tsho sab nrauv ntsuas rau cov av sib cuag. Txawm li cas los xij, qhov tsim nyog nyob ntawm cov av, qhov tob hauv faus, kev pheej hmoo ntawm nas, thiab cov lej hauv zos. Rau txoj kev uas muaj pob zeb rov qab los yog kev ua haujlwm siab nas, kev tiv thaiv ntxiv xws li cov kav dej lossis cov chaw tshwj xeebunderground kabarmor tej zaum yuav xav tau.

Dab tsi yog qhov txawv ntawm helical thiab SZ stranding hauv slotted cores?

Helical stranding qhwv cov grooves nyob rau hauv ib tug nruam kauv. SZ stranding alternates winding kev taw qhia ntawm ib txwm reversal cov ntsiab lus, tsim natural access point raws lub cable ntev. SZ stranding feem ntau xav tau thaum nruab nrab - ncua kev nkag yuav tsum tau - piv txwv li, thaum ib tus neeg ribbons yuav tsum tau txiav tawm ntawm qhov nruab nrab splice cov ntsiab lus raws li txoj kev - vim hais tias cov cable tuaj yeem qhib rau ntawm qhov chaw thim rov qab yam tsis tas yuav tsum tau nkag los ntawm qhov kawg cable. Qhov kev xaiv ntawm ob yog nyob ntawm qhov chaw tsim khoom tsim thiab cov kev xav tau ntawm lub installation.