Don tabbatar da an kare tushen kebul na gani daga injina, zafi, sinadarai, da lalacewar da ke da alaƙa, dole ne a sanye shi da kumfa ko ma ƙarin yadudduka na waje. Waɗannan matakan suna tsawaita rayuwar sabis na fiber na gani yadda ya kamata.
Abubuwan da aka saba amfani da su a cikin igiyoyi na gani sun haɗa da A-sheaths (kwayoyin aluminum-polyethylene bonded sheaths), S-sheaths (ƙarfe-polyethylene bonded sheaths), da polyethylene sheaths. Don igiyoyin gani mai zurfi na ruwa, yawanci ana amfani da sheath ɗin ƙarfe na ƙarfe.
Ana yin sheaths na polyethylene daga ƙananan ƙananan ƙarancin layi, matsakaici-yawa, kohigh-yawa baki polyethylene abu, daidai da ma'aunin GB/T15065. Filayen baƙar fata polyethylene ya kamata ya zama santsi da iri ɗaya, babu kumfa da ake iya gani, ramuka, ko fasa. Lokacin amfani da shi azaman kumfa na waje, kauri na ƙididdiga ya kamata ya zama 2.0 mm, tare da ƙaramin kauri na 1.6 mm, kuma matsakaicin kauri akan kowane ɓangaren giciye bai kamata ya zama ƙasa da mm 1.8 ba. Kayan inji da na jiki na kwasfa ya kamata su cika buƙatun da aka kayyade a YD/T907-1997, Table 4.
Sheath na A-kwashe yana kunshe da shingen shingen danshi da aka yi da dogon nannade da kuma lulluberoba mai rufi aluminum tef, haɗe da wani extruded baki polyethylene sheath. Sheath polyethylene yana haɗuwa tare da tef ɗin da aka haɗa da kuma gefuna masu haɗuwa na tef, wanda za'a iya ƙara ƙarfafawa tare da m idan an buƙata. Nisa mai haɗe-haɗe na tef ɗin ɗin bai kamata ya zama ƙasa da mm 6 ba, ko don muryoyin kebul waɗanda ke da diamita ƙasa da 9.5 mm, ya kamata ya zama ƙasa da 20% na kewayen ainihin. Matsakaicin kauri na polyethylene sheath shine 1.8 mm, tare da ƙaramin kauri na 1.5 mm, matsakaicin kauri ba ƙasa da 1.6 mm ba. Don Nau'in 53 na waje, kauri mara kyau shine 1.0 mm, mafi ƙarancin kauri shine 0.8 mm, matsakaicin kauri shine 0.9 mm. Tef ɗin haɗin gwal na aluminum-roba ya kamata ya dace da daidaitattun YD/T723.2, tare da tef ɗin aluminium yana da kauri mara kyau na 0.20 mm ko 0.15 mm (mafi ƙarancin 0.14 mm) da kauri mai kauri na 0.05 mm.
Ana ba da izinin haɗin haɗin tef ɗin kaɗan yayin kera na USB, muddin tazarar haɗin gwiwa bai wuce mita 350 ba. Dole ne waɗannan haɗin gwiwa su tabbatar da ci gaba da wutar lantarki kuma su dawo da ɗigon filastik. Ƙarfin haɗin gwiwa dole ne ya zama ƙasa da 80% na ƙarfin tef ɗin na asali.
S-kwashe yana amfani da shingen shingen danshi wanda aka yi da katako mai tsayi da nannade.roba mai rufi karfe tef, haɗe da wani extruded baki polyethylene sheath. Sheath polyethylene yana haɗuwa tare da tef ɗin da aka haɗa da kuma gefuna masu haɗuwa na tef, wanda za'a iya ƙarfafa shi da m idan ya cancanta. Tef ɗin da aka haɗa ya kamata ya samar da tsari mai kama da zobe bayan nannade. Ya kamata nisa ta zoba ya zama ƙasa da mm 6, ko kuma na igiyoyin igiyoyi masu diamita ƙasa da 9.5 mm, bai kamata ya zama ƙasa da 20% na kewayen ainihin ba. Matsakaicin kauri na polyethylene sheath shine 1.8 mm, tare da ƙaramin kauri na 1.5 mm, matsakaicin kauri ba ƙasa da 1.6 mm ba. Tef ɗin haɗe-haɗe na ƙarfe-roba yakamata ya dace da ma'aunin YD/T723.3, tare da tef ɗin ƙarfe yana da ƙayyadaddun kauri na 0.15 mm (mafi ƙarancin 0.13 mm) da kauri na fim ɗin 0.05 mm.
Ana ba da izinin haɗin haɗin tef ɗin haɗin gwiwa yayin kera na USB, tare da ƙaramin tazarar haɗin gwiwa na 350 m. Tef ɗin ƙarfe ya kamata ya zama haɗin haɗin gwiwa, yana tabbatar da ci gaba da wutar lantarki da maido da haɗin haɗin gwiwa. Ƙarfin haɗin gwiwa dole ne ya zama ƙasa da 80% na ainihin ƙarfin tef ɗin.
Tef ɗin aluminium, tef ɗin ƙarfe, da yaduddukan sulke na ƙarfe da ake amfani da shi don shingen danshi dole ne su kiyaye ci gaban wutar lantarki tare da tsawon kebul ɗin. Don sheaths masu ɗaure (ciki har da nau'in nau'in 53 na waje), ƙarfin peeling tsakanin aluminium ko tef ɗin karfe da kuma polyethylene sheath, da ƙarfin peeling tsakanin gefuna masu rufi na aluminum ko tef ɗin karfe, kada ya zama ƙasa da 1.4 N / mm. Koyaya, lokacin da aka yi amfani da kayan toshe ruwa ko sutura a ƙarƙashin tef ɗin aluminium ko ƙarfe, ba a buƙatar ƙarfin peeling a gefuna masu haɗuwa.
Wannan ingantaccen tsarin kariya yana tabbatar da dorewa da amincin kebul na gani a wurare daban-daban, yadda ya kamata ya dace da bukatun tsarin sadarwa na zamani.
Lokacin aikawa: Janairu-20-2025