Zingwe zamkati zamkati zimagwiritsidwa ntchito kwambiri pamakina okhazikika. Chifukwa cha zinthu zosiyanasiyana monga malo omangira ndi kukhazikitsa, mapangidwe a zingwe zamkati zamkati zakhala zovuta kwambiri. Zida zomwe zimagwiritsidwa ntchito pazitsulo za kuwala ndi zingwe ndizosiyana, zomwe zimakhala ndi makina ndi kuwala zimatsindika mosiyana. Zingwe zowoneka bwino zamkati zamkati zimaphatikizapo zingwe zanthambi zapakatikati, zingwe zopanda mitolo, ndi zingwe zomangika. Masiku ano, DZIKO LIMODZI lidzayang'ana pa imodzi mwa mitundu yodziwika bwino ya zingwe zowoneka bwino: GJFJV.
GJFJV Indoor Optical Cable
1. Mapangidwe Apangidwe
Chitsanzo chodziwika bwino chamakampani cha zingwe zamkati zamkati ndi GJFJV.
GJ - Kuyankhulana kwamkati mkati mwa chingwe
F - Non zitsulo reinforcing chigawo chimodzi
J - Mawonekedwe olimba a fiber optical
V - Polyvinyl kolorayidi (PVC) m'chimake
Zindikirani: Potchula dzina la sheath, "H" imayimira sheath yopanda utsi, ndipo "U" imayimira polyurethane sheath.
2. Chithunzi cha Indoor Optical Cable Cross-Section
Zida Zopangira ndi Mawonekedwe
1. Coated Optical Fiber (Wopangidwa ndi kuwala kwa kuwala ndi zokutira zakunja)
Ulusi wowoneka bwino umapangidwa ndi zinthu za silika, ndipo makulidwe apakati apakati ndi 125 μm. Dera lapakati la single-mode (B1.3) ndi 8.6-9.5 μm, ndipo pamitundu yambiri (OM1 A1b) ndi 62.5 μm. Dera lapakati pamitundu yambiri OM2 (A1a.1), OM3 (A1a.2), OM4 (A1a.3), ndi OM5 (A1a.4) ndi 50 μm.
Pakujambula kwa galasi la optical fiber, nsanjika ya zokutira zotanuka zimagwiritsidwa ntchito pogwiritsa ntchito kuwala kwa ultraviolet kuteteza kuipitsidwa ndi fumbi. Chophimba ichi chimapangidwa ndi zinthu monga acrylate, mphira wa silikoni, nayiloni.
Ntchito ya zokutira ndikuteteza kuwala kwa fiber pamwamba ku chinyezi, gasi, ndi ma abrasion wamakina, komanso kupititsa patsogolo magwiridwe antchito a ulusi, potero kuchepetsa kutayika kwina kopindika.
Chophimbacho chikhoza kupangidwa ndi utoto pamene chikugwiritsidwa ntchito, ndipo mitunduyo iyenera kugwirizana ndi GB/T 6995.2 (Blue, Orange, Green, Brown, Gray, White, Red, Black, Yellow, Purple, Pinki, kapena Cyan Green). Itha kukhalanso yosasinthika ngati yachilengedwe.
2. Wothina Buffer Layer
Zipangizo: Zogwirizana ndi chilengedwe, polyvinyl chloride (PVC) yosagwira moto,low smoke halogen-free (LSZH) polyolefin, chingwe chotchinga ndi moto chovoteledwa ndi OFNR, chingwe chotchinga ndi moto chovoteledwa ndi OFNP.
Ntchito: Imatetezanso ulusi wa kuwala, kuonetsetsa kuti ikugwirizana ndi zochitika zosiyanasiyana zoikamo. Amapereka kukana kupsinjika, kupsinjika, ndi kupindika, komanso kumapereka kukana kwamadzi ndi chinyezi.
Gwiritsani ntchito: Chotchinga chotchinga chikhoza kukhala chojambulidwa ndi mitundu kuti chizindikirike, chokhala ndi ma code amitundu ogwirizana ndi miyezo ya GB/T 6995.2. Pazizindikiritso zosavomerezeka, mphete zamitundu kapena madontho angagwiritsidwe ntchito.
3. Kulimbikitsa Zigawo
Zofunika:Ulusi wa Aramid, makamaka poly(p-phenylene terephthalamide), mtundu watsopano wa ulusi waukadaulo wapamwamba kwambiri. Ili ndi zinthu zabwino kwambiri monga mphamvu zochulukirapo, modulus yayikulu, kukana kutentha kwambiri, kukana kwa asidi ndi alkali, kupepuka, kutsekereza, kukana kukalamba, komanso moyo wautali wautumiki. Pakutentha kwapamwamba, imakhalabe yokhazikika, ndi kutsika kochepa kwambiri, kutsika kochepa, ndi kutentha kwa magalasi apamwamba. Imaperekanso kukana kwa dzimbiri komanso kusakhala ndi conductivity, ndikupangitsa kuti ikhale yolimbikitsira zingwe zowunikira.
Ntchito: Ulusi wa Aramid umazunguliridwa mozungulira kapena kuyikidwa motalika mu sheath ya chingwe kuti uthandizire, kukulitsa kulimba kwa chingwe komanso kukana kupanikizika, mphamvu zamakina, kukhazikika kwamafuta, komanso kukhazikika kwamankhwala.
Makhalidwewa amaonetsetsa kuti chingwechi chimagwira ntchito komanso moyo wautumiki. Aramid amagwiritsidwanso ntchito kwambiri popanga zovala zotchingira zipolopolo ndi ma parachuti chifukwa champhamvu zake zolimba.
4. M'chimake Wakunja
Zida: Polyolefin (LSZH), polyvinyl chloride (PVC) ya polyvinyl chloride, kapena zingwe za OFNR/OFNP zovoteledwa ndi OFNR/OFNP. Zida zina za sheath zitha kugwiritsidwa ntchito malinga ndi zomwe kasitomala amafuna. Low utsi halogen wopanda polyolefin ayenera kukwaniritsa mfundo YD/T1113; polyvinyl kolorayidi ayenera kutsatira GB/T8815-2008 kwa zipangizo zofewa PVC; Thermoplastic polyurethane iyenera kukwaniritsa miyezo ya YD/T3431-2018 ya thermoplastic polyurethane elastomers.
Ntchito: Sheath yakunja imapereka chitetezo chowonjezera cha ulusi wowoneka bwino, kuwonetsetsa kuti atha kuzolowera malo osiyanasiyana oyika. Amaperekanso kukana kupsinjika, kuponderezana, ndi kupindika, pomwe akupereka kukana kwamadzi ndi chinyezi. Pazochitika zachitetezo chamoto, zida zopanda utsi wa halogen zimagwiritsidwa ntchito kukonza chitetezo cha chingwe, kuteteza ogwira ntchito ku mpweya woipa, utsi, ndi malawi pamoto.
Gwiritsani ntchito: Mtundu wa sheath uyenera kugwirizana ndi miyezo ya GB/T 6995.2. Ngati kuwala kwa fiber ndi mtundu wa B1.3, m'chimake uyenera kukhala wachikasu; kwa mtundu wa B6, sheath iyenera kukhala yachikasu kapena yobiriwira; kwa mtundu wa AIa.1, uyenera kukhala lalanje; Mtundu wa AIb uyenera kukhala wotuwa; A1a.2-mtundu uyenera kukhala wobiriwira wa cyan; ndipo mtundu wa A1a.3 uyenera kukhala wofiirira.
Zochitika za Ntchito
1. Zomwe zimagwiritsidwa ntchito kawirikawiri m'machitidwe olankhulana amkati mkati mwa nyumba, monga maofesi, zipatala, masukulu, nyumba za ndalama, malo ogula zinthu, malo osungiramo deta, ndi zina zotero. Zimagwiritsidwa ntchito makamaka kuti zigwirizane pakati pa zipangizo m'zipinda za seva ndi kugwirizana kwa mauthenga ndi ogwira ntchito kunja. Kuphatikiza apo, zingwe zowoneka bwino zamkati zitha kugwiritsidwa ntchito pama waya amtaneti apanyumba, monga ma LAN ndi makina apanyumba anzeru.
2. Kagwiritsidwe: Zingwe zamkati zamkati ndizophatikizika, zopepuka, zopulumutsa malo, komanso zosavuta kuziyika ndi kukonza. Ogwiritsa ntchito amatha kusankha mitundu yosiyanasiyana ya zingwe zowoneka bwino za m'nyumba kutengera zofunikira zadera.
M'nyumba kapena m'malo antchito, zingwe za PVC zamkati zitha kugwiritsidwa ntchito.
Malinga ndi National Standard GB/T 51348-2019:
①. Nyumba zapagulu zokhala ndi kutalika kwa 100m kapena kupitilira apo;
②. Nyumba zapagulu zotalika pakati pa 50m ndi 100m ndi malo opitilira 100,000㎡;
③. Malo opangira ma data a B grade kapena pamwamba;
Izi zikuyenera kugwiritsa ntchito zingwe zoyang'ana moto zomwe sizingafanane ndi moto zomwe sizitsika kuposa giredi ya B1 yopanda utsi, yopanda halogen.
Mu muyeso wa UL1651 ku US, chingwe chapamwamba kwambiri chotchinga moto ndi chingwe chowoneka bwino cha OFNP, chomwe chimapangidwa kuti chizizimitsa chokha mkati mwa mita 5 chikayaka moto. Kuonjezera apo, sichitulutsa utsi wapoizoni kapena nthunzi, zomwe zimapangitsa kuti zikhale zoyenera kuyika muzitsulo zolowera mpweya kapena makina obwezeretsa mpweya omwe amagwiritsidwa ntchito pazida za HVAC.
Nthawi yotumiza: Feb-20-2025