Umphakeli wakho usanda kukucaphuna izinombolo ezinhlanu zemodeli yekhebula lokudonsa — GJXFH, GJXH, ГХХЧЧ, I-GJYXFCH, I-GJFJU. Udinga ukuphendula umbuzo owodwa ngaphambi kokuthi i-PO ihambe: iyiphi edingwa yile phrojekthi?
Lo mhlahlandlela ubhalelwe umuntu owenza leso sinqumo. Yeqa isiqalisi sokuthi “iyini ikhebula le-fiber drop” (ehlala kithi I-Fiber Optic Drop Cable Guide) futhi iqonda ngqo ekukhetheni izinga lamamodeli.
Uma uthenga ngokukhishwa kwe-FTTH, thengisa kabusha izintambo zokudonsa kuma-ISP esifunda, noma zicacise kumklamo wephrojekthi, uzoqeda lokhu cishe emizuzwini eyishumi bese uphuma nemodeli evikelekile.
Ukuthi Zisho Ukuthini Izinhlamvu Eziku-GJXFH Empeleni
Amakhodi emodeli yekhebula yokuwa yaseShayina alandela okulandelayo YD/T 1258 telecom standard. Uma usufundile iphethini, igama ngalinye lemodeli yesikhathi esizayo lifundeka njengeshidi elicacisiwe:
| Incwadi | Incazelo | Lokho elikutshela kona ngekhebula |
|---|---|---|
| G | Ukuxhumana-sebenzisa intambo yokubona | Kuyikhebula le-telecom optical, hhayi ithusi noma ingxube yamandla |
| J | Ukusetshenziswa kwasendlini (njengesiqalo) | Idizayinelwe ngokuyinhloko ukuthunyelwa kwangaphakathi |
| Y | Ukusetshenziswa kwangaphandle (njengesiqalo) | Idizayinelwe izindawo ezingaphandle |
| X | Uhlobo lomnsalo / uvemvane cross-section | Ifulethi, iphrofayili efana nesithombe-esisishiyagalombili |
| F | Ilungu lamandla (kuncike komongo) | Bheka isixwayiso ngezansi |
| C | Ukuzisekela ngesithunywa esihlanganisiwe | Inensimbi yangaphakathi noma intambo ye-FRP ukuze ibambe i-span yayo |
| H | Umgodla (njengesijobelelo) | Imaka isendlalelo sejakhethi yangaphandle |
| J (ikhodi ephakathi, isib. I-GJFJU) | Isi-Aramid / Isici samandla se-KFRP | Ukuqiniswa ngokuphelele okungeyona insimbi |
| U | Okungeyona eyensimbi | Ayikho insimbi noma kuphi endaweni ephambanayo |
Ukufunda kusuka phansi kuya phansi:
- GJXFH = ikhebula le-bow-type yasendlini enelungu lamandla kanye ne-LSZH sheath
- GJXH = ikhebula lohlobo lomnsalo lasendlini elinelungu lamandla ensimbi kanye neshethi ye-LSZH (akukho “F” ekuqambeni amadala, ekhona emihlanganweni emisha)
- ГХХЧЧ = ikhebula elizisekelayo lohlobo lomnsalo elinesithunywa sensimbi
- I-GJYXFCH = ikhebula elizisekelayo lohlobo lomnsalo elinesakhiwo esisekelwe ku-FRP
- I-GJFJU = ikhebula lasendlini elingeyona eyensimbi ngokugcwele elinamalungu anamandla e-aramid
Isexwayiso emagameni amamodeli
Nansi into okungekho omunye umhlahlandlela wokuthenga ozokutshela yona: uhlamvu “F” nge-GJXFH aluhunyushwa ngokungaguquki kusizinda sokukhiqiza sase-China. Ezinye izimboni zilisebenzisa ukusho i-FRP (okungezona ezensimbi) amandla amalungu. Abanye bayisebenzisa njengomaka ojwayelekile "oqinisiwe" futhi basathumela ikhebula ngocingo lwensimbi ngaphakathi..
Sizibonile zombili izinguqulo ensimini. Ikhebula lokuwisa elibhalwe ukuthiGJXFH ngaphandle angafika nge 0.5 mm phosphated steel wire njengelungu layo lamandla. Lokho akulona iphutha - kuwukuqanjwa kwamagama osekuneminyaka kukhona, ikakhulukazi phakathi kwama-OEM amaphakathi.
Ukuhlola iqiniso lomthengi:
Ungalokothi wamukele inombolo yemodeli yekhebula kuphela. Qinisekisa njaloamandla ilungu impahla futhiimpahla yejacket ngokubhala ku-PO noma kudatha yedatha. Abahlinzeki ababili bangacaphuna "GJXFH" futhi bathumele imikhiqizo ehlukene ngokomzimba. I-database iyiqiniso. Ikhodi yemodeli iwuphawu.Insimbi, I-FRP, noma i-Aramid: Khetha Ilungu Lamandla Ngaphambi Kwenombolo Yemodeli
Uma usuwazi imindeni emithathu yamalungu amandla, inombolo yemodeli icishe izikhethele yona. Nakhu okushintsha kuzo zonke izinto ezintathu:
Impahla Intambo yensimbi (i-phosphated / othayela) I-FRP (I-Fiber-Reinforced Plastic) Isi-Aramid / I-KFRP Amandla aqinile (ejwayelekile) Iphakeme kakhulu ngobubanzi obunikeziwe Ukuphakama okuphakathi Phezulu, eduze kwensimbi ngesisindo I-Conductivity Insimbi eqhubayo I-non-conductive dielectric I-non-conductive dielectric Ukuminyana / i-fibconet Kunzima kakhulu Ukukhanya Okulula kakhulu Inkomba yezindleko (isihlobo) 1.0 (isisekelo) ~1.15–1.30 ~1.6–2.2 Ukugoba ukukhathala Ingakhubazeka ngokwepulasitiki uma igotshwe ngokuqinile Iyakhuthazela, iphuma emuva Kuhle kakhulu, ukusetshenziswa okuphezulu kwe-fiber Ukuziphatha kwesimo sezulu esibandayo Izinzile I-Brittle ku-sub-zero ngokwedlulele uma isezingeni eliphansi Izinzile kubo bonke ububanzi Ukuziphatha komlilo ngejazi le-LSZH Izinsalela zensimbi ngemva kokushiswa Ukushisa okuhlanzekile Ukushisa okuhlanzekile Icala lokusebenzisa elijwayelekile Izindlu ezijwayelekile ze-FTTH ziphasisiwe, yokuhlala mpo, amaphrojekthi aqhutshwa yizindleko Izindawo zasendlini ezingezona ezensimbi, izakhiwo ezixubene ne-EMI-sensitive Izikhala zangaphandle ze-dielectric ngokugcwele, ama-elevator shafts, amagumbi e-MRI esibhedlela, ukuthunyelwa kwe-oda elikhethekile
I-physics okufanele uyikhumbule ngempela
I-optical fibre idlulisa idatha njengokukhanya ngomongo wengilazi. Leyo nqubongokuyisisekelo ukuzivikela ekuphazamisekeni kwe-electromagnetic — iqiniso ongalicaphuna kunoma iliphi ikhasimende elikhathazeke “ngomsindo” kulayini ovela ezimotweni eziseduze, ama-transformer, noma amakheshi. Ukukhanya akunandaba nendawo ezungezile ye-EMI.
Kodwa ikhebula elizungeze ifayibha liyindaba ehlukile.
Uma ikhebula lokudonsa lisebenzisa ailungu lamandla ensimbi, leyo nsimbi ingumqhubi. Ngaphansi kombani oseduze, umcimbi wokungenisa amandla aphezulu, noma isikhashana esinamandla kulayini we-AC ohambisanayo, isici sensimbi esingaphakathi kwekhebuli yakho yokudonsa singacosha amandla amanje. Uma iziphetho zombili zaleyo khebula zinqamuka eduze kwama-electronics asebenzayo (i-ONT ekhaya, iphaneli yokusabalalisa endaweni ebiyelwe yi-splice), umsinga owenziwe unendlela eya emhlabathini - ngemishini yakho.
Yingakho abafaki ezindaweni ezithandwa umbani, eduze kwamaphaseji anamandla kagesi aphezulu, noma iziteshi ezincane eziseduze zivame ukucacisaizintambo ezingewona ezensimbi (Izinhlobo ze-FRP noma ze-KFRP). Ukusebenza kwe-optical akushintshi. Iphrofayili yobungozi iyakwenza.
Ithiphu ye-Pro yabathengi:
Uma ikhasimende lakho lisebhande lemonsoon laseNingizimu-mpumalanga Asia, eduze komhubhe wasemaphandleni osebenzisa amandla kagesi aphezulu, ogwadule lwaseMpumalanga Ephakathi olunothuli oluphakeme oluqinile, noma ukuchaza isibhedlela / isiteshi esincane / Iphrojekthi ye-MRI, babuze umbuzo owodwa okhuphukayo: “Ingabe ikhebula lokudonsa elingeyona eyensimbi ngokugcwele liyadingeka noma liyakhethwa?” Lowo mbuzo owodwa unciphisa amamodeli amahlanu wehle abe ngamabili.
I-GJXFH — I-Indoor Bow-Type Workhorse
I-GJXFH iyona efakwa ukukhishwa okuningi kwe-FTTH kwezindawo zokuhlala phakathi kwebhokisi lokusabalalisa lesakhiwo kanye ne-ONT yobhalisile.. Yenzelwe izimo zasendlini: izinga lokushisa elizinzile, izindlela ezivikelwe, amandla okudonsa amaphakathi ngesikhathi sokufakwa kokuqala.
Idatha ejwayelekile ye-1-fiber GJXFH (ngokusekelwe ku-spec yokukhiqiza yangempela):
| Ipharamitha | Inani |
|---|---|
| Inani le-fiber | 1 (futhi 2 / 4-izinguqulo core) |
| Uhlobo lwefiber | Imodi eyodwa ye-G.657.A2 egobayo |
| Attenuation @1310 nm | ≤ 0.4 dB/km |
| Attenuation @1550 nm | ≤ 0.3 dB/km |
| Ukulahlekelwa kwe-Macro-bending @1625 nm, 7.5 mm × 1 phenduka | ≤ 1.0 dB |
| Ubukhulu bejakhethi | 3.0 × 2.0 mm (I-LSZH, omnyama noma omhlophe) |
| Ilungu lamandla | 0.5 mm (insimbi noma i-FRP, qinisekisa ku-PO) |
| Umthwalo wesikhathi eside we-tensile | 40 N |
| Umthwalo wesikhathi esifushane we-tensile | 80 N |
| Okuncane. irediyasi yokugoba (ashukumisayo / i-static) | 30 mm / 15 mm |
| Izinga lokushisa lokusebenza | -40 ku +70 °C |
| Izinga lokushisa lesitoreji | -40 ku +70 °C |
Kungani i-G.657.A2 ibaluleke kakhulu kunethegi yentengo
Izintambo ezimbili zokudonsa zingabukeka zifana ephepheni, zihluke kuphela $0.02 ngemitha, futhi wenze ukukhetha okuhluke kakhulu kwekusasa lekhasimende lakho.
G.657.A1 iphatha ukugoba okumaphakathi kodwa yehlisa izinga elicijile ngezansi ~10 mm irediyasi.G.657.A2 - i-fiber engaphakathi kwencazelo engenhla - ibamba ubuningi 1.0 dB yokulahlekelwa okugoqa kakhulu ngisho naku-a 7.5 mm bend irediyasi ku 1625 nm.
Kungani 1625 nm udaba? Ngoba lelo windi le-wavelength yilapho ukuxilonga kwenethiwekhi nekusasaUkuthuthukiswa kwe-XGS-PON 10G izimpawu bukhoma. I-ISP esebenzisa i-A1 namuhla ingase ibhekane nekhebuli ephoqelelwe ebizayo uma ithuthukela ku-10G FTTH., ngoba i-fiber endala ayikwazi ukubamba ubuqotho besignali ngaphansi kokugoba okufanayo. Ikhebula le-A2, empeleni, inqubomgomo yomshuwalense wezindleko eziphansi ngokumelene nokuthuthukiswa kwenethiwekhi okulandelayo komsebenzisi.
Iphuzu lokukhuluma lomsabalalisi:
Lapho umthengi we-wholesale ebuyisela emuva enanini lakho le-GJXFH ngoba oqhudelana naye ishibhe ngo-$0.03/m, buza ukuthi ikhebula elishibhile lilisebenzisa liphi ibanga le-fiber. Uma kungu-A1, ungasho ngobuqotho: “Lokho $0.03 ukonga kuba yizindleko ezigcwele zokuhlanganisa kabusha ikhebula lapho bethuthela ku-XGS-PON eminyakeni emithathu.” Abathengi abathengela opharetha bayayikhathalela leyo zibalo.
Lapho ungasebenzisi i-GJXFH
Umklamo wangaphakathi usho ukusetshenziswa kwangaphakathi. Ungaphakeli i-GJXFH ngaphandle esigxotsheni sasemoyeni noma ngesikhathi sokuzisekela. Ijakhethi ye-LSZH ayakhelwe ukuchayeka kwe-UV okuqhubekayo, ingxenye encane yesiphambano ngeke isinde ekulayishweni kweqhwa, futhi ayikho intambo yesithunywa yokuthwala isisindo sekhebula ngokwalo kunoma yiliphi ibanga.
Uma umthengi ekubuza ukuthi izinguqulo ze-"GJXFH zangaphandle" zikhona yini, impendulo eqotho ithi cha. AbakudingayoГХХЧЧ nomaI-GJYXFCH — izintambo zangaphandle ezinesithunywa esihlanganisiwe. Funda uqhubeke.
I-GJXH - Uhlobo Lomnsalo Wangaphakathi Oqiniswe Ngensimbi
I-GJXH ivamise ukusetshenziswa ngokushintshana ne-GJXFH kumakhathalogi abahlinzeki, futhi ukudideka kungokoqobo. Ekufundeni kwethu imakethe, umehluko ongokoqobo yilokhu: I-GJXH ihlezi ihamba ngelungu lamandla ensimbi ye-phosphated kanye nezilinganiso eziqinile eziphakeme kancane kunokwehluka okumakwe yi-FRP.
Idatha ejwayelekile ye-2-fiber GJXH:
| Ipharamitha | Inani |
|---|---|
| Inani le-fiber | 2 (futhi 1 / 4-izinguqulo core) |
| Uhlobo lwefiber | G.657.A2 (qinisekisa i-A1 vs A2 nge-oda) |
| Attenuation @1310 nm | ≤ 0.4 dB/km |
| Ubukhulu bejakhethi | 3.1 × 2.0 mm (I-LSZH, mnyama) |
| Ilungu lamandla | 2 × 0.45 mm phosphated steel wire |
| Umthwalo wesikhathi eside we-tensile | 100 N |
| Umthwalo wesikhathi esifushane we-tensile | 200 N |
| Okuncane. irediyasi yokugoba (ashukumisayo / i-static) | 60 mm / 30 mm |
| Izinga lokushisa lokusebenza | -20 ku +60 °C |
Iphutha elivame kakhulu nge-GJXH
Sibonile ochwepheshe bedonsa i-GJXH ngamamitha angama-20 we-conduit run, phezulu kwe-ceiling voids, noma ezindaweni ezimfishane zasemoyeni. Kuzo zonke lezi zimo ukuthunyelwa kwasebenza ngosuku lokuqala futhi kwakhiqiza izikhalazo zamakhasimende ezinyangeni eziyisithupha kamuva - ama-micro-fractures ngaphakathi kwefayibha., ukwehla kancane kancane, kanye nocingo lwesevisi oluzofaka esikhundleni sokugijima.
A 100 N Isilinganiso sesikhathi eside esiqinile sisho ukuthi ikhebuli ingakwazi ukubamba isisindo sayo namandla okudonsa amaphakathiuma isifakiwe futhi imile. Akusho ukuthi ungayidonsa 15 amamitha we-conduit ngokumelene nokungqubuzana. Uma isifaki sakho sidinga amandla okudonsa anengqondo, cacisa ikhebula elilinganiselwe ngakho - ngokuvamile i-GJYXCH ngo 300 N isikhathi eside, ngisho nangenguquko emfushane yangaphakathi nengaphandle.
Isimo somhlaba wangempela:
Umthengi eMpumalanga Afrika ubike ukuhluleka kwekhebula lokuwa ngemva kwezinyanga ezintathu zesevisi. Imbangela: isifaki sabo sisebenzise intambo yasendlini ye-GJXH ibanga elingamamitha angama-40 emhubheni ophahleni ngoba ibisesandleni.. Phakathi nenkathi eyodwa yezimvula ibhantshi le-LSZH lase limunce umswakama owanele emajoyintini emisele avele obala ukuze enze i-microbending.. Ukulungiswa kwaba umsebenzi kabusha nge-GJYXCH - kanye ne-spec yento ebhaliwe kuyo yonke i-PO yesikhathi esizayo.
I-GJYXCH — Ukwehla Kwangaphandle Okuzisekelayo kwe-Aerial FTTH
I-GJYXCH iyihhashi lokusebenzela langaphandle: yakhelwe ukuthunyelwa emoyeni phakathi kwezigxobo zosizo, yakhelwe ukubamba isisindo sayo ngaphezu kwe-span kufika ku-~80 metres, futhi ifakwe ibhantshi ukuze isinde kwi-UV, izinga lokushisa, kanye nomthwalo wemvula ophakathi.
Idatha ejwayelekile ye-2-fiber GJYXCH:
| Ipharamitha | Inani |
|---|---|
| Inani le-fiber | 2 (ngokwezifiso kufika ku-12-core) |
| Uhlobo lwefiber | G.652.D noma G.657.A uchungechunge |
| Attenuation @1310 nm | ≤ 0.36 dB/km |
| Attenuation @1550 nm | ≤ 0.22 dB/km |
| Ubukhulu bejakhethi | 5.0 × 2.0 mm (I-LSZH, mnyama) |
| Isakhiwo | Ikhebula eliyisicaba + edidiyelwe steel isithunywa, "Figure-8" cross-section |
| Isithunywa sensimbi | 1 × 1.0 mm |
| Amalungu amandla ensimbi (ohlangothini lwekhebula) | 2 × 0.4 mm phosphated insimbi |
| Umthwalo wesikhathi eside we-tensile | 300 N |
| Umthwalo wesikhathi esifushane we-tensile | 600 N |
| Ubukhulu be-air span | ≤ 80 m |
| Izinga lokushisa lokusebenza | -20 ku +60 °C |
Okusho ukuthi “ukuzondla” empeleni
Igama libalulekile. Ikhebula lokudonsa elizisekelayo lithwala isisindo sayo esifile kanye nomoya kanye (ezindaweni ezibandayo) umthwalo weqhwa, ngaphandle kokudinga ucingo oluhlukile oluhlikihlayo. Isithunywa esihlanganisiwe esingaphakathi kwe-GJYXCH yiso esenza lokho kusebenze.
Uma ufinyelela ububanzi obufika kumamitha angu-80 lo mklamo uyasebenza futhi ushibhile. Ngale 80 amamitha - cabanga ukuphambana kwemigwaqo okude, ukuwela imifula, noma i-aerial yasemaphandleni ihamba phakathi kwezigxobo eziqhelelene kakhulu - i-messenger geometry ayisakubambi ukwehla nokushuba. Kulapho Ikhebula le-ADSS ithatha izintambo.
Ukusebenzisa kabi okubili okuvamile
Ungangcwabi ngokuqondile i-GJYXCH. Ijakhethi ayakhelwe ukuthintana nenhlabathi, ingcindezi yomswakama, noma umthwalo wamagundane. Ukungcwatshwa ngqo, cacisa ikhebula langaphandle elihlomile njenge-GYTA53.
Ungeqi ubude besikhathi. Sibukele izifaki zilenga i-GJYXCH ezimpambanweni zomgwaqo ezingamamitha ayi-100 “lokhu kanye” ngoba i-ADSS ibingekho.. Phakathi nenkathi eyodwa yesiphepho, ikhebula i-cable sag yeqe imikhawulo yokuthobelana futhi ukulayishwa kwezigxobo kwaba yingozi yokuphepha. Qondanisa umklamo ne-span, hhayi ikhalenda.
Lapho Udinga Ngokugcwele Okungeyona I-Metal: Isi-Aramid (I-KFRP) kanye ne-GJYXFCH
Izimo ezimbili zishayela amakhasimende amakhebuli okuwisa angewona awensimbi ngokuphelele:
Isimo sokuqala - i-EMI esebenzayo noma ingozi yombani. Iziteshi ezingaphansi, high-voltage transmission corridors, amaphrojekthi wokubambisana we-telecom-power, futhi (kwezinye izifunda) izindawo ezisogwini ezine-atmospheric static ephezulu. Kulezi zindawo ukucaciswa kwekhasimende kuvame ukugunyaza izintambo zokudonsa ze-dielectric ukususa noma iyiphi indlela yamanje..
Isimo sesibili - igunya lokulawula noma lenkontileka. Izibhedlela eduze namagumbi e-MRI, isikhumulo sezindiza esithile / ezempi / ukuthunyelwa kwezindawo ezivikelekile, kanye nezinhlaka ezithile ze-telco zaseYurophu ezidinga ikhebula ye-dielectric last-mile.
Kulawo macala:
- I-GJYXFCH — inguqulo yangaphandle ezisekelayo enesakhiwo esisekelwe ku-FRP esikhundleni sesithunywa sensimbi
- I-GJFJU — uhlobo lomnsalo lwangaphakathi olungenansimbi ngokuphelele olune-aramid (I-KFRP) amandla amalungu
Kokubili okuhlukile kuyatholakala nge-oda kunokuba njengesitoko esijwayelekile. Izikhathi zokuhola zithatha amaviki angu-1-3 ubude kunokulingana nocingo lwensimbi, futhi inkomba yentengo ihlala cishe ku-1.6–2.2× inguqulo yensimbi ehambisanayo. Ngakho-ke isinqumo sokuthenga kufanele sibe“Ingabe le phrojekthi ingesinye salezi zimo ezimbili,” hhayi"ingabe sifuna okungezona ezensimbi ukuze kuphephe." Ukucaciswa okungaphezulu kuwumshayeli wezindleko zangempela.
Isihlahla Sesinqumo se-Drop Cable — 4 Imibuzo, 1 Imodeli
I-FTTH Drop Cable Selection · Isihlahla sesinqumo esinemibuzo emi-4
Umdwebo: FTTH drop ikhebula yokukhetha imodeli yengqondo · Umthombo: Iqembu lonjiniyela le-FIBCONE
Isinqumo sinciphisa sibe yimibuzo emine elandelanayo. Babuze ngale ndlela bese kuphuma imodeli efanele:
- Ingabe ukusetshenziswa kungaphakathi noma ngaphandle?
Ngasendlini → GJXFH noma GJXH · Outdoor → GJYXCH noma GJYXFCH - Okwangaphandle: iyikhebula elifakwe emoyeni phakathi kwezigxobo, ngaphandle kwentambo yesithunywa ehlukile?
Yebo → okuhlukile okuzisekelayo (I-GJYXCH noma i-GJYXFCH) · No → armored outdoor cable such as GYTA53 - Is a fully non-metallic cable required (Izindawo ze-EMI, othanda umbani, hospital, contract-mandated dielectric)?
Yes → FRP or KFRP version (GJXFH-FRP indoor, GJYXFCH outdoor, GJFJU for special deployments) · No → steel-reinforced version is fine - Is cost-per-meter more important than a premium feature set?
Yes → steel wire strength member · No → FRP or KFRP for the longer-service-life scenarios above
Four questions. Five models. One picked cable.
Before You Sign the PO: A Drop Cable Buying Checklist
Print this section, share it with your procurement or engineering team, and use it every time you request a quote or receive a shipment.
Specification checklist (put these on the PO in writing)
- Inombolo yemodeli futhi amandla ilungu impahla (never trust the model alone)
- Inani le-fiber (1 / 2 / 4 / ngokwezifiso)
- Fiber grade — insist on G.657.A2 nganoma yikuphi ukusetshenziswa kwe-FTTH okungathuthukiswa ku-XGS-PON
- Izinto zejakhethi (I-LSZH yangaphandle yasendlini nesimanje kakhulu; PE kuphela lapho kungadingeki i-LSZH)
- Umbala webhantshi (umnyama ungaphandle ojwayelekile; okumhlophe noma okumpunga kungase kucelwe ukuze kubonakale ngaphakathi endlini)
- Ubude be-reel (ejwayelekile 2-3 km isigubhu ngasinye; qinisekisa ngaphambi kwama-oda amakhulu)
- Ifomethi yokumaka yokuphrinta (amamaki amamitha alandelanayo, iqoqo ikhodi, kanye nanoma yikuphi ukumaketha kwekhasimende)
- Kudingeka izitifiketi zezwe okuyiwa kulo (I-CPR yezicelo zokwakha ze-EU, I-ANATEL yaseBrazil, I-UL/ETL yezikhuphukeli zasendlini zaseNyakatho Melika)
Uhlu lokuqinisekisa ikhwalithi (kwenzeni lokhu emalini oyitholile)
- Yonke i-reel kufanele ihanjiswe ne-OTDR yefekthri yokulandela kanye nombiko wokuncishiswa onenombolo yeqoqo
- Hlola ngeso lengqondo umgodla ukuze uhambisane, ukuphrinta okushumekiwe, kanye nanoma yikuphi ukungahambisani kombala
- Isampula elingahleliwe ingxenye yemitha elingu-1: khumula umgodla, qinisekisa amandla amalungu afana ne-PO spec
- Bend-test isampula kurediyasi yokugoba elinganiselwe bese ukala kabusha ukulahlekelwa ku-OTDR (a 0.1 I-dB noma i-jump enkulu iqinisekisa ukubuyekezwa kwenqwaba)
Amafulegi abomvu okufanele acuphe ukwenqatshwa noma ukuxoxisana kabusha
- Inombolo yemodeli nokwakhiwa komzimba akufani ne-PO
- I-LSZH sheath ikhipha iphunga lepulasitiki elisobala lapho isampula lihlolwa ukushisa (ikhombisa inhlanganisela engathobeli imithetho)
- Ayikho idatha yokuhlola ileveli yenqwaba enikezwe ngokuthunyelwa
- Ilungu lamandla ensimbi libonisa i-oxidation yangaphambi kwesikhathi ngaphambi kokufakwa
- Ukumaka kokuphrinta kungcolisiwe noma kushoda ngezikhathi ezithile - kuzohluleka ukuhlolwa kokwamukela ngasohlangothini lwekhasimende
Umugqa Ongezansi - Qondanisa Imodeli Nokuthunyelwa
Ukuthenga kahle ikhebula lokudonsa kuyisenzo sokuhumusha. Ikhasimende lithi “sidinga i-FTTH yemayela lokugcina,” okusho ukuthi “sidinga imodeli ethile elingana nendawo yalokhu kuthunyelwa, iphrofayili yokungezwani, Ingozi ye-EMI, kanye nomjikelezo wokuphila.” Isihlahla sesinqumo esingenhla siguqula lokho kuhumusha kube yimibuzo emine.
Iphutha elilodwa elivame kakhulu esilibonayo esifundeni sonke alikhokhi kakhulu - alicacisi kahle. Ikhebuli yasendlini ye-GJXH edonswe epayipini likasophahleni ibiza kancane ku-invoyisi futhi ibiza kakhulu ngamaroli wamaloli ayibangelayo.. Cacisa imodeli kulokho ikhebula ezobhekana nakho empilweni yayo yesevisi, hhayi kulokho okuzwakala kushibhile ngosuku lwe-PO.
Uma ungathanda ukubuka okuphrintekayo okuhlanganisa wonke amamodeli amahlanu okukhulunywe ngawo ngenhla - ungawadawuniloda kwethi: FTTH Drop Cable resource hub. Sibuyekeza ishidi njalo ngekota.
Imibuzo Evame Ukubuzwa Mayelana Nokukhethwa Kwemodeli Yekhebula Ye-FTTH
Uyini umehluko phakathi kwe-GJXFH ne-GJXH?
I-GJXFH ne-GJXH zombili izintambo zokudonsa ezingaphakathi endlini zohlobo lomnsalo. Ku-YD/T yesiShayina eqinile 1258 ukuqamba amagama, uhlamvu F nge-GJXFH lubonisa ilungu lamandla e-FRP engeyona eyensimbi, kuyilapho i-GJXH ibonisa i-metallic (ngokuvamile insimbi ye-phosphated) ilunga lamandla. Ngokusebenza, Ukuqanjwa kwefekthri kuyehluka - abanye abahlinzeki bathumela ikhebuli ebhalwe ukuthi GJXFH enocingo lwensimbi ngaphakathi. Njalo qinisekisa amandla okubalulekile kwelungu ku-oda lakho lokuthenga, hhayi nje ikhodi yemodeli.
Imele ini i-GJXFH?
Uhlamvu ngalunye lufaka ikhodi yemfanelo engokoqobo ngaphansi kwe-YD/T 1258.G imele ukuxhumana-sebenzisa intambo yokubona, J iwumaka njengekhebula lasendlini, X ikhomba uhlobo lomnsalo (uvemvane) Isigaba esiphambanayo, F ikhomba isigaba samalungu anamandla, futhiH ikhomba ibhantshi langaphandle. Fundani ndawonye, I-GJXFH isho ikhebuli yokudonsa ye-bow-fiber engaphakathi endlini enelungu elinamandla aqinisiwe kanye nesheath yangaphandle (ngokuvamile LSZH).
Ngingakwazi ukusebenzisa ikhebula lokuwisa lasendlini njenge-GJXFH ngaphandle?
Cha. Izintambo zokudonsa zasendlini zisebenzisa amajakhethi e-LSZH angagxili e-UV ukuze uhlale ukhanya elangazweni., futhi ingxenye yawo ephambanayo ayiklanyelwe ukuthi iphile lapho kugcwala iqhwa, ukucindezeleka komoya, noma umswakama wangaphandle. Ngokuphakelwa kwe-FTTH yasemoyeni phakathi kwezigxobo, sebenzisa i-GJYXCH (isithunywa sensimbi) noma i-GJYXFCH (isithunywa esingesona esansimbi). Okokusetshenziswa kwepayipi noma ukungcwaba ngqo, cacisa ikhebula langaphandle elihlomile njenge-GYTA53.
Ingabe i-FRP noma intambo yensimbi ingcono kulungu lamandla ekhebula lokudonsa?
Futhi akukho okungcono emhlabeni jikelele - ukukhetha okulungile kuncike ekusetshenzisweni. Intambo yensimbi iletha amandla aphakeme aqinile ngedola ngalinye futhi ihlala iyinketho eyonga kakhulu ye-FTTH evamile yokuhlala yasendlini.. I-FRP (ipulasitiki engeyona i-fiber-reinforced) ukukhetha okulungile kwezindawo ezine-EMI esebenzayo, ingozi yombani, noma ukuba seduze kwemigqa yamandla kagesi aphezulu, lapho indlela yensimbi eya phansi ngaphakathi kwekhebula ingadala ingozi ku-ONT exhunyiwe noma okokusebenza kokusabalalisa.
Amakhebuli okwehla abonayo athintwa imigqa eseduze yamandla kagesi aphezulu noma umbani?
I-fiber optical ngaphakathi kwekhebula ivikeleke ngokuyisisekelo ekuphazamiseni kazibuthe kagesi - ukukhanya akuphenduli ku-EMI.. Nokho, uma ikhebula isebenzisa ailungu lamandla ensimbi, leyo nsimbi ingakwazi ukucosha ugesi obangelwa umbani oseduze noma i-AC edlulayo, futhi leyo yamanje inendlela edlula kukhebula egcina isisetshenziswa sakho sokunqamula. Okokusetshenziswa eduze kweziteshi ezincane, imigudu yokudlulisela, noma ezindaweni ezithandwa umbani, cacisa ngokuphelele okungeyona eyensimbi (I-FRP noma i-KFRP) okuhlukile.
Iyini ikhebula lokudonsa le-FTTH elizisekelayo?
Ikhebula lokuwisa elizisekelayo linento ehlanganisiwe yesithunywa - ngokuvamile intambo yensimbi ku-GJYXCH noma i-FRP rod ku-GJYXFCH - ethwala isisindo sekhebula inqamula i-air span phakathi kwamaphoyinti amabili okusekela., ngokuvamile izigxobo zosizo. Lokhu kuqeda isidingo socingo oluhlukene oluqhumayo, ukwenza lula ukufaka emoyeni. Isilinganiso esiphezulu se-span singamamitha angu-80; ukugijima okude kufanele kusebenzise ikhebuli ye-ADSS esikhundleni salokho.
Iyini i-air span ephezulu yekhebuli yokudonsa ye-GJYXCH?
Cishe 80 amamitha phakathi kwamaphoyinti okusekela, ngaphansi kwezimo ezijwayelekile. Ngale kwalelo banga, i-cable sag idlula imikhawulo yokuthobelana ngaphansi komthwalo womoya neqhwa, futhi ukushuba kwesithunywa kungafaka engcupheni i-pole hardware. Okwezikhala phakathi 80 futhi 200+ amamitha, sebenzisa ikhebula le-ADSS, eyenzelwe ukugijima okude emoyeni.
Ngingakwazi ukungcwaba ikhebula le-GJYXCH ngokuqondile ngaphansi komhlaba?
Cha. I-GJYXCH ifakwe ibhantshi ukuze ikwazi ukuchayeka emoyeni ku-UV nesimo sezulu, hhayi ukuthintana nomhlabathi, ukucindezela komswakama emhlabathini, noma ukuvikela amagundane. Ukungcwatshwa ngqo, sebenzisa ikhebula le-armored njenge-GYTA53 elinesivikelo se-steel-tape kanye ne-sheathing efanele.
Inde kangakanani ikhebuli evamile ye-FTTH yokuwa phansi ngerili ngayinye?
Ubude be-reel obujwayelekile bujwayelekile 2 ku 3 amakhilomitha e-GJXFH yangaphakathi / I-GJXH kanye ne-GJYXCH yangaphandle. Ubude bangokwezifiso zerili nezigubhu ezinkulu zingakhiqizwa nge-oda - qinisekisa kokubili ukunikezwa okujwayelekile nanoma iyiphi imfuneko yobude obuqondene nephrojekthi nomphakeli wakho ngaphambi kokuphothula i-PO.
Imaphi amandla aqinile adingwa ikhebula lokudonsa kuphrojekthi yami?
Kuncike esimweni sokufaka, hhayi egameni lekhebula. Ukufakwa odongeni noma okufushane kwangaphakathi endlini ngokuvamile kudinga ukungezwani kwesikhathi eside okungu-40–100 N (GJXFH or GJXH). Conduit pulling, ceiling voids, and short aerial transitions require higher rated cables — even for short outdoor spans, spec GJYXCH at 300 N isikhathi eside. Under-speccing the tensile rating is the single most common cause of latent micro-fracture failures we see in the field.
How do I verify drop cable quality before accepting delivery?
Request a factory OTDR trace and attenuation report for every reel, keyed to the batch number. Visually inspect the sheath for consistent color, embedded print marking, and no material inconsistency. Random-sample a short section from each shipment, khumula umgodla, and confirm that the strength member material physically matches your PO specification. Any mismatch between the PO and the actual construction should trigger an immediate quality dialogue with the supplier.
Iliphi ibanga le-fiber okufanele ngilicacise ngokusetshenziswa kwe-FTTH kobufakazi besikhathi esizayo?
CacisaG.657.A2 noma ngaphezulu. Ifayibha yesizukulwane esidala G.657.A1 ibonisa ukulahleka okukhulu kwe-macro-gonding ku-bend radii ngezansi 10 mm, ikakhulukazi ku 1625 nm — iwindi le-wavelength elisetshenziselwa ukunwetshwa kwenethiwekhi ye-XGS-PON 10G FTTH. Ukukhipha i-A1 namuhla kungase kuphoqe u-opharetha ukuthi afake ikhebula yenethiwekhi ebizayo lapho ethuthukisa. I-A2 fiber ibamba ≤ 1.0 ukulahlekelwa kwe-dB ku-a 7.5 mm bend irediyasi ku 1625 nm, ukumboza ngempumelelo umjikelezo wokuthuthukisa olandelayo womsebenzisi ngenkokhelo yezindleko eziphansi.
