Ka nts'etsopele ea sechaba sa mehleng ea kajeno, marang-rang a fetohile karolo ea bohlokoa bophelong ba batho, 'me phetisetso ea matšoao a marang-rang e ke ke ea arohanngoa le likhoele tsa marang-rang (tse bitsoang lithapo tsa marang-rang).Mosebetsi oa likepe le oa leoatleng ke setsi sa sejoale-joale sa indasteri se tsamaeang leoatleng, se nang le boits'oaro bo ntseng bo eketseha le bohlale, le tikoloho e rarahaneng ea ts'ebeliso.Litlhoko tsa likhoele tsa marang-rang li phahame ka tlhaho ho feta tsa tikoloho ea mobu.Kajeno, ke tla kenyelletsa ka bokhutšoanyane lithapo tsa marang-rang tsa likepe le tsa leoatle ho bohle.
Hangata thapo ea marang-rang eo re buang ka eona ke e sothehileng.Thepa ea conductor ea mohala oa marang-rang ke koporo, e nang le li-conductor tse ngata tse nang le likhoele le li-conductor tse tiileng tse tiileng.Li-conductors tsa koporo tse nang le insulation ea PE kapa PO lia eketsoa, li sotheha ka mahlakoreng a mabeli, ebe li sotheloa ka har'a thapo ka lipara tse 'ne tsa lithapo.Masapo a sefapano, lera le sireletsang, terata ea drainage, le lera la ho loha lia eketsoa ha ho hlokahala, 'me qetellong lesela le sireletsang lea phahamisoa ho fihlela tlhahiso e felletseng.
1.Network cable classification
Lithapo tsa marang-rang tse sebelisoang hangata li ka aroloa kaCAT5E(likarolo tse hlano tse phahameng ka ho fetisisa), CAT6 (likarolo tse tšeletseng), CAT6A (likarolo tse tšeletseng tse holimo), CAT7 (likarolo tse supileng), CAT7A (likarolo tse supileng tse phahameng ka ho fetesisa), CAT8 (likarolo tse robeli), har'a tsona:
Cable ea marang-rang ea Super Class 5: Lehlakore le ka ntle la mohala oa marang-rang le tšoauoa ka CAT.5e, le maqhubu a phetisetso ea 100MHz le tekanyo e phahameng ea phetisetso ea 1000Mbps, e loketseng marang-rang a gigabit.Ho ba le ts'ebetso e ntlafetseng ho feta mela ea Sehlopha sa 5, ho ntlafatsa matšoao a kang NEXT, PS-ELFEXT, Atten, le ho tšehetsa likopo tsa duplex;Hona joale, karolo e kholo ea lithapo tsa marang-rang li arotsoe e le Sehlopha sa 5, haholo-holo bakeng sa tšebeliso ea rona.
Mefuta e tšeletseng ea likhoele tsa marang-rang: Lehlakore le ka ntle la mohala oa marang-rang le tšoailoe ka CAT.6, e nang le lebelo le phahameng la phetisetso ea 250MHz le lebelo le phahameng la phetisetso ea 1Gbps, e loketseng marang-rang a gigabit.The comprehensive attenuation to crosstalk ratio (PS-ACR) ea Category 6 cabling systems e lokela ho ba le margin e kholo ho 200MHz, e fane ka makhetlo a mabeli a marang-rang a Sehlopha sa 5. Ts'ebetso ea phetisetso ea Category 6 cabling e phahame haholo ho feta ea maemo a Sehlopha sa 5, ke eona e loketseng haholo lits'ebetso tse nang le litefiso tsa phetisetso tse fetang 1Gbps.
Super Category 6 cable network: Lehlakore le ka ntle la mohala oa marang-rang le tšoauoa ka CAT.6e kapa CAT6A, e nang le maqhubu a mangata a phetisetso ea 500MHz le lebelo la phetisetso ea 10Gbps, e loketseng ho sebelisoa marang-rang a 10 Gigabit.Sena se etsa hore lithapo tsa marang-rang tsa Super Category 6 e be lipara tse sothehileng tse tsebahalang haholo lits'ebetsong tsa li-cabling, 'me ts'ebetso e phahameng ea lithapo tse sothehileng tsa Super Category 6 li kopana haholo le litlhoko tse phahameng tsa lebelo la bandwidth ea litsi tsa data.
Sehlopha sa 7 / Super Category 7 Cable Network: Lehlakore le ka ntle la mohala oa marang-rang le tšoauoa ka CAT7 kapa CAT7A, ka lebelo le phahameng la phetisetso ea 600 / 1000MHz le lebelo la phetisetso ea 10Gbps.Motheo oa Sehlopha sa 7 hangata o entsoe ka terata ea koporo e nang le botenya bo ka bang 0.57mm, e leng koporo e se nang oksijene e hloekileng haholo.Sena se tiisa khanyetso ea ultra-tlase, ho etsa hore phetiso e be telele le pontšo e tsitsitseng haholoanyane.
Category 8 Network Cable: Cat8 Category 8 Network Cable ke moloko oa morao-rao oa jumper ea marang-rang e sirelelitsoeng habeli (SFTP), e nang le lipara tse peli tsa terata, e ka tšehetsang bandwidth ea 2000MHz, mme e na le sekhahla sa phetisetso ho fihla ho 40Gb/s.Ho phaella moo, thapo ea marang-rang ea Cat8 e ka lumellana le likhoele tsohle tsa RJ45 'me e etselitsoe ka ho khetheha bakeng sa likopo tsa 25/40GBASE-T.Leha ho le joalo, sebaka sa eona sa phetisetso se khuts'oane, ke 30m feela, se etsa hore e tšoanelehe haholo bakeng sa ho hokahanya li-server, li-switches, liforeimi tsa kabo, le lisebelisoa tse ling litsing tsa data tse hole.
Ho latela hore na ke ho sireletsa:
Lithapo tsa marang-rangli boetse li arotsoe ka lihlopha tse sothehileng tse sirelelitsoeng (STP) le tse sothehileng tse sa sireletsehang (UTP).
Shielded Twisted Pair (STP):
Lera le ka ntle le phuthetsoe ka thepa ea tšepe, eo hangata e leng foil ea aluminium, ho fokotsa mahlaseli le ho thibela tlhahisoleseding hore e se ke ea mamela.Ka nako e ts'oanang, e na le tekanyo e phahameng ea phetisetso ea data, empa theko e phahame, 'me ho kenngoa ho boetse ho batla ho rarahane.
Mefuta e Sothehileng e sa Tšireletsoang (UTP):
UTP ha e na thepa e sireletsang tšepe, ke karolo e le 'ngoe feela ea thepa ea ho kenya letsoho e pota-potileng, e batlang e le theko e tlaase ebile e tenyetseha marang-rang.Ntle le liketsahalong tse khethehileng (tse kang libaka tse nang le mahlaseli a matla a motlakase), UTP e sebelisoa hangata.UTP hape ke thapo ea marang-rang e sebelisoang haholo bakeng sa tšebeliso ea lelapa.
Tikoloho ea ts'ebeliso ea likhoele tsa marang-rang tsa leoatleng e batla e rarahane, e nang le tšitiso e phahameng ea motlakase.Ka kakaretso, ho na le litlhokahalo tse phahameng tsa ts'ireletso, tse ka aroloa ka mefuta e latelang ho latela skrineng ka kakaretso le skrineng e nyane:
F/UTP: Skrine se akaretsang sa foil ea aluminium ea kantle, ha ho na tšireletso lipakeng tsa lipara tsa terata;CAT5E le CAT6 li sebelisoa hangata.
SF/UTP: Sekirini se akaretsang sa terata ea koporo e lohang ka ntle, ha ho na tšireletso lipakeng tsa lipara tsa terata, tse sebelisoang hangata ho CAT6.
S/FTP: Tšireletso ea ka ntle ea koporo ea terata ea koporo, para ho kopanya tšireletso ea aluminium foil, phello e ntle ea tšireletso, CAT6A le holimo e tla sebelisa sebopeho sena.
2.Liphapang tsa likhoele tsa marang-rang tsa marine
Ha ho bapisoa le likhoele tsa marang-rang, likhoele tsa marang-rang tsa marine li na le phapang e kholo tikolohong ea tsona ea ho kenya le ho e sebelisa.Mohlala, tikoloho ea motlakase ka sekepeng e rarahane, sebaka se moqotetsane, mongobo oa moea le letsoai li phahame, mahlaseli a kantle a ultraviolet a matla, tikoloho ea tšilafalo ea oli e phahame, litlhoko tsa thibelo ea mollo li phahame, tikoloho ea kaho e thata. , 'me ho thata ho falla ha ho hlaha likotsi, tse nang le litlhoko tse phahameng bakeng sa ts'ebetso e fapaneng ea lithapo.
Lithapo tsa marang-rang tsa metsing hangata li entsoe ho latela maemo a IEC 61156-5/6.IEC 61156-5 e loketse ho beha sebaka se selelele se otlolohileng, haholo-holo ho sebelisa li-conductors tse tiileng tsa mantlha, tse nang le bots'epehi bo botle ba conductor le sebaka se selelele le se tsitsitseng sa phetisetso ea matšoao.IEC 61156-6 e loketse libaka tsa ts'ebetso, joalo ka libaka tsa kamore ea likhomphutha, moo li-conductors tse sothehileng li sebelisoang hangata, ho etsa hore likhoele li tenyetsehe le ho lokeleha ho beha sebaka se moqotetsane.Hangata e sebelisoa bakeng sa li-jumpers.
Kakaretso ea mesebetsi ea likepe e sebakeng sa leoatle.Ha ho ka ba le mollo, ho ba thata hore batho ba tsoe sebakeng seo, ’me lithapo lia tuka.Mosi o hlahisoang ke mollo o ka baka kotsi e kholo bophelong ba batho.E le ho fokotsa kotsi ea likotsi tsa mollo, lithapo tsa marang-rang tsa marine hangata li sebelisa mosi o tlase le halogen-free (LSZH) flame retardant polyolefin e le thepa ea ka ntle ea sheath, e finyellang litlhoko tse thibelang lelakabe tsa IEC60332 le litlhoko tse fokolang tsa mosi le halogen. ea IEC 60754-1/2 le IEC 61034-1/2.Maemong a mang a ikhethileng, ho tla sebelisoa likhoele tse sa cheng tse nang le maemo a phahameng a ts'ireletso, 'me lisebelisoa tse thibelang mollo joalo ka mica tape li tla eketsoa ho fihlela litlhoko tsa ho hanyetsa mollo tsa IEC60331, ho netefatsa hore le kamora mollo, potoloho e ka sebetsa hape. ka tlwaelo bakeng sa nako e itseng, ka ho etsa jwalo ho hodisa polokeho ya maphelo a batho le thepa.
Libakeng tse ling tse khethehileng tsa maoatleng, joalo ka li-platform tsa ho hloekisa oli tsa offshore (FPSOs), li-dredgers tse kholo, joalo-joalo, likhoele li hloka ho kopana ha nako e telele le sediment, slurry ea oli le lintho tse fapaneng tse senyang.E le ho ntlafatsa ka katleho matla a lesela la ka ntle la thapo, ho lokela ho sebelisoe lithapo tsa ka ntle tsa polyolefin (SHF2) kapa tse hanyetsanang le seretse (SHF2 MUD).Crosslinking polyolefin ke mokhoa oa ho khantša mahlaseli a 'mele kapa lik'hemik'hale, tse ntlafatsang ts'ebetso ea polyolefin le ho li nolofalletsa ho ba le bophelo bo bolelele ba ts'ebeletso le thepa ea 'mele e ntlafetseng ka mor'a ho kopana.Polyolefin e hanyetsanang le seretse e bua ka polyolefin e amanang le sefapano e nang le khanyetso e matla ea ho senya le ho roala, e nolofalletsang likhoele ho fihlela litlhoko tsa ho hanyetsa seretse tsa NEK 606.Bakeng sa ho ntlafatsa ts'ebetso ea mochini oa mohala, lihlomo tsa tšepe le tsona li tla ekeletsoa thapong, joalo ka lihlomo tse lohiloeng ka terata ea galvanized steel (GSWB), lihlomo tse lohiloeng ka terata ea koporo (TCWB), joalo-joalo. cable e tla ba le matla a molemo a mochine, ka tsela eo ho sireletsa molemothapo ea marang-rangle ho fokotsa ho hlaha ha khatello le tsitsipano ea fractures.Ka nako e ts'oanang, lihlomo tsa tšepe li ka boela tsa phetha karolo e itseng ea tšireletso khahlanong le ho kena-kenana le matla a khoheli a ka ntle, ho ntlafatsa botšepehi ba phetisetso ea data.
Holim'a moo,likhoele tsa marang-rang tsa metsinghangata li hlokoa hore li be khahlanong le UV (ke hore, tse hanyetsanang le UV).Kaha likepe le tikoloho ea leoatle li na le khanya ea letsatsi e lekaneng, mahlaseli a matla a UV, le likhoele tse tloaelehileng li bonolo ho tsofala, likhoele tsa leoatleng li tla sebelisa mabone a xenon kapa sefafatsi sa metsi ho latela maemo a UL1581/ASTM G154-16 ho hlahisa phello ea boemo ba leholimo ba likhoele tse hlasetsoeng ke letsatsi le pula. nakong ea ts'ebeliso ea 'nete, e le ho leka bokhoni ba ho thibela botsofali ba likhoele.
Nako ea poso: Oct-26-2023