Ha sechaba sa sejoale-joale se ntse se hola, marang-rang e se e le karolo ea bohlokoa bophelong ba letsatsi le letsatsi, 'me phetisetso ea lets'oao la marang-rang e itšetleha ka likhoele tsa marang-rang (tseo hangata li bitsoang lithapo tsa Ethernet). Joalo ka setsi sa sejoale-joale sa indasteri se tsamaeang leoatleng, boenjineri ba metsing le ba kantle ho naha bo ntse bo eketseha le ho ba bohlale. Tikoloho e rarahane ho feta, e beha litlhoko tse phahameng holim'a sebopeho sa lithapo tsa Ethernet le lisebelisoa tsa cable tse sebelisoang. Kajeno, re tla hlahisa ka bokhutšoanyane likarolo tsa meralo, mekhoa ea ho arola, le tlhophiso ea lisebelisoa tsa bohlokoa tsa likhoele tsa Ethernet tsa metsing.
1.Cable Classification
(1).Ho ea ka Ts'ebetso ea Phetiso
Lithapo tsa Ethernet tseo re tloaetseng ho li sebelisa hangata li entsoe ka li-conductor tse sothehileng tsa koporo, tse nang le li-conductors tsa koporo tse le 'ngoe kapa tse ngata-ngata, lisebelisoa tsa ho kenya letsoho tsa PE kapa PO, tse sothehileng ka bobeli, ebe lipara tse 'nè li etsoa thapo e feletseng. Ho ipapisitsoe le ts'ebetso, limaraka tse fapaneng tsa likhoele li ka khethoa:
Sehlopha sa 5E (CAT5E): Sheath ea ka ntle e atisa ho etsoa ka PVC kapa polyolefin e fokolang halogen-free, e nang le maqhubu a 100MHz le lebelo le phahameng la 1000Mbps. E sebelisoa haholo malapeng le marang-rang a ofisi ka kakaretso.
Sehlopha sa 6 (CAT6): E sebelisa li-conductor tsa koporo tsa boemo bo holimo lepolyethylene e phahameng haholo (HDPE)thepa ea ho kenya letsoho, e nang le karohano ea sebopeho, e eketsang bandwidth ho 250MHz bakeng sa phetisetso e tsitsitseng haholoanyane.
Sehlopha sa 6A (CAT6A): Maqhubu a eketseha ho 500MHz, sekhahla sa phetisetso se fihla ho 10Gbps, hangata se sebelisa tepi ea aluminium foil Mylar e le thepa e sireletsang, 'me e kopantsoe le lisebelisoa tse phahameng tse tlaase tsa halogen-free sheath bakeng sa ho sebelisoa litsing tsa data.
Sehlopha sa 7 / 7A (CAT7/CAT7A): E sebelisa 0.57mm ea koporo e se nang oksijene, para e 'ngoe le e 'ngoe e sirelelitsoe kaaluminium foil Mylar tape+ terata ea koporo e kentsoeng ka kakaretso, e matlafatsang botšepehi ba lets'oao le ho ts'ehetsa phetisetso ea 10Gbps ka lebelo le phahameng.
Sehlopha sa 8 (CAT8): Sebopeho ke SFTP e nang le tšireletso ea mekhahlelo e 'meli (teipi ea aluminium foil Mylar bakeng sa para e' ngoe le e 'ngoe + ka kakaretso ea braid), 'me sheath hangata ke lisebelisoa tse phahameng tsa XLPO tse thibelang mollo, tse tšehetsang ho fihla ho 2000MHz le 40Gbps lebelo, tse loketseng bakeng sa likhokahano tsa lisebelisoa tse fapaneng litsing tsa data.
(2). Ho latela Shielding Structure
Ho latela hore na lisebelisoa tsa tšireletso li sebelisoa mohahong, likhoele tsa Ethernet li ka aroloa ka:
UTP (Unshielded Twisted Pair): E sebelisa feela thepa ea PO kapa ea HDPE e se nang tšireletso e eketsehileng, theko e tlaase, e loketseng tikoloho e nang le tšitiso e fokolang ea motlakase.
STP (Shielded Twisted Pair): E sebelisa aluminium foil Mylar tape kapa copper wire braid e le thepa e sireletsang, e matlafatsa ho hanyetsa tšitiso, e loketseng tikoloho e rarahaneng ea motlakase.
Lithapo tsa Marine Ethernet hangata li tobana le tšitiso e matla ea motlakase, e hlokang meaho e phahameng ea tšireletso. Litlhophiso tse tloaelehileng li kenyelletsa:
F/UTP: E sebelisa aluminium foil tape ea Mylar e le lera le sireletsang ka kakaretso, le loketseng CAT5E le CAT6, e sebelisoang hangata lits'ebetsong tsa taolo ea onboard.
SF/UTP: Aluminium foil Tape ea Mylar + e sirelelitsoeng ka koporo e sirelelitsoeng, e matlafatsang khanyetso ea EMI ka kakaretso, e sebelisoang hangata bakeng sa matla a leoatle le phetiso ea matšoao.
S/FTP: Para e 'ngoe le e 'ngoe e sothehileng e sebelisa tepi ea aluminium ea Mylar bakeng sa ho sireletsa motho ka mong, e nang le lesela le ka ntle la terata ea koporo bakeng sa tšireletso ka kakaretso, e kopantsoeng le thepa e phahameng ea XLPO e thibelang mollo. Ena ke sebopeho se tloaelehileng bakeng sa CAT6A le lithapo tse ka holimo.
2. Liphapang tsa Lithapo tsa Marine Ethernet
Ha ho bapisoa le likhoele tsa Ethernet tse thehiloeng mobung, likhoele tsa marine Ethernet li na le phapang e hlakileng ea khetho ea thepa le moralo oa sebopeho. Ka lebaka la tikoloho e thata ea leoatle - moholi o phahameng oa letsoai, mongobo o phahameng, tšitiso e matla ea motlakase, mahlaseli a matla a UV, le ho chesa - lisebelisoa tsa mohala li tlameha ho fihlela litekanyetso tse phahameng tsa polokeho, ho tšoarella le ts'ebetso ea mochini.
(1).Litlhoko tse Tloaelehileng
Lithapo tsa Marine Ethernet hangata li entsoe ho latela IEC 61156-5 le IEC 61156-6. Horizontal cabling hangata e sebelisa li-conductor tse tiileng tsa koporo tse kopantsoeng le lisebelisoa tsa ho kenya HDPE ho fihlela sebaka se betere sa phetisetso le botsitso; Lithapo tsa marang-rang ka likamoreng tsa data li sebelisa li-conductors tsa koporo tse koetsoeng tse nang le PO kapa PE e bonolo bakeng sa ho tsamaisa tsela habonolo libakeng tse thata.
(2) .Ho Retadaha ha Lelakabe le ho Hanyetsa Mollo
Ho thibela ho ata ha mollo, lithapo tsa Ethernet tsa marine li atisa ho sebelisa lisebelisoa tsa polyolefin tse sa tsitseng halogen tse se nang mollo o fokolang (joaloka LSZH, XLPO, joalo-joalo) bakeng sa ho phunya, ho kopana le IEC 60332 flame retardant, IEC 60754 (halogen-free) le litekanyetso tsa IEC 61034 (low smoke). Bakeng sa litsamaiso tse mahlonoko, theipi ea mica le lisebelisoa tse ling tse thibelang mollo li eketsoa ho fihlela litekanyetso tsa IEC 60331 tsa ho hanyetsa mollo, ho netefatsa hore mesebetsi ea puisano e bolokiloe nakong ea liketsahalo tsa mollo.
(3). Ho Hanyetsa Oli, Ho Hanyetsa ho Corrosion, le Sebopeho sa Lihlomo
Likarolong tse kantle ho naha tse kang li-FPSO le li-dredger, likhoele tsa Ethernet hangata li pepesetsoa oli le mecha ea litaba e senyang. Ho ntlafatsa ho tšoarella ha sheath, ho sebelisoa lisebelisoa tse amanang le polyolefin sheath (SHF2) kapa lisebelisoa tsa SHF2 MUD tse hanyetsanang le seretse, tse lumellanang le litekanyetso tsa ho hanyetsa lik'hemik'hale tsa NEK 606. Ho matlafatsa matla a mochini le ho feta, likhoele li ka hasoa ka galvanized steel wire braid (GSWB) kapa copper wire braid (TCWB), e fanang ka khatello le matla a thata, hammoho le tšireletso ea motlakase ho sireletsa botšepehi ba matšoao.
(4). Khanyetso ea UV le Ts'ebetso ea Botsofali
Lithapo tsa Marine Ethernet hangata li pepesetsoa letsatsi le tobileng, kahoo lisebelisoa tsa sheath li tlameha ho ba le matla a ho hanyetsa UV. Ka tloaelo, polyolefin sheathing e nang le li-additives tse thibelang khabone e ntšo kapa UV e sebelisoa le ho lekoa tlas'a litekanyetso tsa botsofali tsa UL1581 kapa ASTM G154-16 UV ho netefatsa botsitso ba 'mele le bophelo bo atolositsoeng ba ts'ebeletso libakeng tse phahameng tsa UV.
Ka kakaretso, karolo e 'ngoe le e' ngoe ea moralo oa thapo ea Ethernet ea marine e hokahane haufi le khetho e hlokolosi ea lisebelisoa tsa cable. Li-conductors tsa boleng bo holimo tsa koporo, thepa ea insulation ea HDPE kapa PO, tepi ea aluminium foil Mylar, braid ea koporo ea mohala, tepi ea mica, thepa ea sheath ea XLPO, le lisebelisoa tsa sheath tsa SHF2 hammoho li theha sistimi ea likhokahano e khonang ho mamella maemo a thata a leoatle. Joaloka mofani oa thepa ea thepa ea marang-rang, re utloisisa bohlokoa ba boleng ba thepa ts'ebetsong ea thapo eohle 'me re ikemiselitse ho fana ka litharollo tsa lisebelisoa tse tšepahalang, tse bolokehileng le tse sebetsang hantle bakeng sa liindasteri tsa leoatleng le tsa maoatle.
Nako ea poso: Jun-16-2025