IIkhebula le-fiber optical ye-ADSSisebenza endaweni ephezulu esekelwa amaphuzu amabili anebanga elikhulu (imvamisa engamakhulu amamitha, noma ngisho nangaphezu kwekhilomitha elingu-1), okwehluke ngokuphelele kumqondo wendabuko othi "i-overhead" (uhlelo lokuposa nolwezokuxhumana olujwayelekile lokumiswa kwentambo yocingo , isilinganiso samamitha angu-0.4 sinephivothi engu-1).Ngakho-ke, imingcele eyinhloko ye-ADSS optical fibre cable ihambisana nemithethonqubo yemigqa engaphezulu kagesi.
1. Ukucindezeleka kuvunyelwe (MAT/MOTS)
Isho ukushuba kwesimo sekhebuli yokubona lapho isamba somthwalo sibalwa ngokwethiyori ngaphansi kwezimo zezulu zokuklama.Ngaphansi kwalokhu kucindezeleka, i-fiber strain kufanele ibe ≤0.05% (i-layer twist) futhi ≤0.1% (ithubhu ephakathi) ngaphandle kokunciphisa okwengeziwe.Ngokwemigomo ye-layman, ubude obudlulele be-optical fiber "budliwa" nje kuleli nani lokulawula.Ngokwale parameter, izimo zemeteorological kanye ne-controlled sag, ubude obuvumelekile bekhebula le-optical ngaphansi kwalesi simo singabalwa.Ngakho-ke, i-MAT iyisisekelo esibalulekile sokubala i-sag-tension-span, futhi iwubufakazi obubalulekile bokubonisa izici zokucindezeleka zekhebuli ye-ADSS.
2. Amandla e-tensile alinganiselwe (UTS/RTS)
Okwaziwa nangokuthi amandla okugcina aqinile noma amandla aphukayo, kubhekisela enanini elibaliwe lesamba samandla esigaba sokuthwala (ikakhulukazi ukubala imicu yokuphotha).Amandla angempela okuphuka kufanele abe ngu-≥ 95% yenani elibaliwe (ukuphuka kwanoma iyiphi ingxenye yekhebula kuthathwa njengokuphuka kwekhebula).Le pharamitha ayikhipheki, futhi amanani amaningi okulawula ahlobene nayo (njengamandla ombhoshongo, ukufakwa okuqinile, izinyathelo zokuvikela ukushaqeka, njll.).Embonini yekhebula le-optical, uma isilinganiso se-RTS/MAT (elingana nesici sokuphepha K somugqa ongaphezulu) singafanelekile, ngisho noma kusetshenziswa i-fiber eningi, futhi ububanzi obutholakalayo be-fiber optical buncane kakhulu, Isilinganiso sokusebenza kwezomnotho/kwezobuchwepheshe sibi kakhulu.Ngakho-ke, umbhali uncoma ukuthi abantu embonini banake le parameter.Ngokuvamile, i-MAT icishe ilingane no-40% RTS.
3. I-Annual Mean Stress (EDS)
Kwesinye isikhathi okubizwa nge-avareji yengcindezi yansuku zonke, kubhekiselwa ekuqineni kwekhebula lapho umthwalo ubalwa ngokwethiyori ngaphandle komoya, ungekho iqhwa nezinga lokushisa elimaphakathi lonyaka, elingathathwa njengamandla ajwayelekile okudonsa kanzima (ingcindezi) e-ADSS ngesikhathi eside. ukusebenza.I-EDS ngokuvamile ingu (16~25)%RTS.Ngaphansi kwalokhu kushuba, i-fiber akufanele ibe ne-strain futhi ingabi nokunciphisa okwengeziwe, okungukuthi, izinzile kakhulu.I-EDS iphinde ibe ipharamitha yokukhathala yokuguga yekhebuli yokubona, futhi umklamo ophikisana nokudlidliza wekhebula lokukhanya unqunywa ngokusekelwe kule pharamitha.
4. I-Ultimate operating tension (UES).
Eyaziwa nangokuthi i-tension yokusetshenziswa okukhethekile, ibhekisela ekucindezelekeni kwekhebula lapho kungenzeka ukweqa umthwalo wokuklama ngesikhathi sempilo esebenzayo yekhebula.Kusho ukuthi ikhebula le-optical livunyelwe ukulayishwa ngokweqile isikhathi esifushane, futhi i-optical fibre ingamelana nobunzima ngaphakathi kwebanga elilinganiselwe elivunyelwe.Ngokuvamile, i-UES kufanele ibe> 60% RTS.Ngaphansi kwalokhu kucindezeleka, i-fiber optical strain ingu-<0.5% (i-tube ephakathi) kanye ne-<0.35% (ungqimba olusontekile), futhi i-fiber optical izoba nokunciphisa okwengeziwe, kodwa ngemva kokukhishwa kwengcindezi, i-fiber optical kufanele ibuyele evamile.Le parameter iqinisekisa ukusebenza okuthembekile kwekhebula le-ADSS phakathi nokuphila kwayo.