Imisho emibili ihlukanisa lezi zintambo ngokwenza. Umuntu uthwala isisindo sakhe futhi akathinti lutho lukagesi. Eyodwa ithatha indawo yocingo lwakho lwaphansi futhi ibe yingxenye yesistimu ye- earthing.
Uma ucacise, thengisa kabusha, noma ugunyaze i-aerial fiber yensiza yamandla kanye namaphrojekthi we-telecom, lo mhlahlandlela ukunika i-matrix yokukhetha eguquguqukayo ezine esikhundleni solunye uhlu lwesici. Iphinde ilungise ukucabangela okuvela cishe kuzo zonke izihloko eziqhudelanayo - futhi kuma-RFQ amaningi esiwatholayo..
Yini Empeleni Ehlukanisa Lama Cable
I-ADSS imele i-All-Dielectric Self-Supporting. I-All-dielectric isho ukuthi ayikho insimbi noma kuphi kukhebuli — amandla avela kupulasitiki oqiniswe nge-fiberglass (I-FRP) ilungu elimaphakathi kanye nentambo ye-aramid, umndeni ofanayo we-fiber osetshenziswa endwangu ye-ballistic. Ukuzisekela kusho ukuthi ithwala isisindo sayo phakathi kwemibhoshongo ngaphandle kwentambo yesithunywa ehlukile.
OPGW imele i-Optical Ground Wire. Kuyi-conductor yensimbi eboshiwe eneyunithi yokubona evalwe ngaphakathi kweshubhu lensimbi engagqwali. Lenza umsebenzi osuvele lwenza ucingo lwakho lwaphansi phezulu - lunqamula umbani futhi luphethe iphutha - futhi luhambisa idatha ngesikhathi esifanayo..
Manje ingxenye eshintsha isinqumo sakho:
- I-ADSS iyisengezo kulayini wakho. I-OPGW ithatha indawo yengxenye yomugqa. Ulenga i-ADSS ezindaweni eziyisipele zombhoshongo. Uthatha intambo endala yaphansi ukuze ufake i-OPGW.
- I-OPGW kuphela ephethe iphutha lamanje. Inesilinganiso esifushane. I-ADSS ayinakho ukulinganisa okunjalo futhi ngeke neze, ngoba ayenzi lutho.
- I-ADSS ingafakwa kaningi ngaphandle kokucisha. I-OPGW cishe ayisoze yakwazi. Ukushintsha intambo yaphansi kusho ukuthi isekethe iyehla.
Ukuhlola Kwangempela Komthengi: Lapho umphakeli ecaphuna zombili izinketho, umbuzo wokuqala akuyona intengo. Yilokhu: ingabe lo mugqa usuvele unayo intambo yaphansi phezulu, futhi umnikazi uhlose ukuyithinta? Uma impendulo ithi “yebo, kukhona oyedwa, futhi cha, asiyithinti,” I-OPGW ayikho etafuleni ngaphambi kokuthi izindleko zingene engxoxweni.
I-Assumption Cishe Wonke Umhlahlandlela Uthola Okungalungile
I-ADSS akuwona umkhiqizo owodwa.
Ijakhethi eyodwa kanye ne-double-jacket ADSS zakhiwe ngendlela ehlukile, ukufinyelela amabanga ahlukene, futhi sisinde ezindaweni ezahlukene zezulu. Kwezinye izinqumo eziguquguqukayo, igebe phakathi kwazo likhulu kunegebe eliphakathi kwe-ADSS ne-OPGW.
| I-ADSS yejakhethi eyodwa | I-ADSS enejakhethi kabili | |
|---|---|---|
| Uphahla lwe-span olusebenzayo | 300 m | Ukuwela ikilasi elingamakhilomitha |
| Inkungu kasawoti ogwini, iqhwa elinzima, uqweqwe lweqhwa | Ayifanelekile | Kuyafaneleka |
| Impilo yesevisi eyengeziwe kulezo zimo zezulu | Isisekelo | +10 ku 15 iminyaka |
| Uphahla olujwayelekile lwe-fiber count | 144 (288 ngesicelo) | 288 (576 ngesicelo) |
| Izindleko zokuthenga ezihlobene | Isisekelo | +20% ku 25% ngenani elilinganayo le-fiber |
Funda futhi lowomugqa wokuqala. Ukucaciswa okubhalwe ku-athikili ejwayelekile - “I-ADSS ifinyelela phezulu 1,000 m” - inembile kolunye ukwakhiwa futhi ayilungile ngezici ezintathu kokunye. Lokhu kushayisana sikubona emibuzweni yangempela: ikhasimende lithumela a 600 m imfuneko ye-span ecaphuna inani lejakhethi elilodwa abalithole kwenye indawo.
Ngakho kusukela lapha kuqhubeke, lo mhlahlandlela uphatha ukukhetha njengendlela emithathu, hhayi indlela-mbili.
Iyaguquguquka 1 - I-Voltage Class kanye nalokho Okudingwa Ulayini
Ikilasi le-voltage lilolonga isinqumo kuzo zombili iziphetho: inquma ukuthi i-OPGW iyasidinga yini isilinganiso esithile sikagesi, futhi inquma ukuthi imvelo inzima kangakanani kubhantshi le-ADSS.
Okulethwa yi-OPGW kuphela etafuleni
Ngoba i-OPGW ingena esikhundleni sentambo yaphansi, izuza njengefa imisebenzi kagesi yaleyo ngxenye. Izinombolo ezimbili zilawula ukucaciswa, futhi akukho okulinganayo kwe-ADSS:
- Umthamo oshisayo wesifunda esifushane (I²t) — ukuthi ikhebula limunca amandla amaphutha angakanani ngaphambi kokuba ukhondatha ashise ngokweqile kanye nemicu engaphakathi ekuphekeni.
- Ukumelana ne-DC — edinga ukuhlala eduze kocingo lwaphansi ngakolunye uhlangothi lomugqa, noma laba ababili babelana okwamanje ngokungalingani futhi eyodwa igijima ishisa.
Nakhu okuqokelwe ukucushwa kwe-48-fiber esikwakhayo, ukuze ubone ukuthi lezi zinombolo zibukeka kanjani ekusebenzeni:
| Ipharamitha | Inani |
|---|---|
| Isekela isigaba esiphambene | 64.51 mm² |
| Ilinganiselwe Amandla Aqinile (I-RTS) | 71.37 kN |
| Umthamo oshisayo wesifunda esifushane (I²t) | 28.80 kA²·s |
| Isikhathi esifushane samanje (1 s, 20 °C → 230 °C) | 5.37 kA |
| Ukumelana ne-DC | 1.161 Ω/km |
| Ukucindezeleka kwansuku zonke (I-EDS) | 16-25% RTS |
| Izinga lokushisa lokusebenza | −40 °C kuya +80 °C |
| Ububanzi bekhebula / i-fibconet | 11.10 mm / 429.64 kg/km |
Izingxenye eziphambanayo zensimbi ezinkulu ziphakamisa kokubili isilinganiso samaphutha namandla okushuba. Izingxenye ezincane zibiza kancane futhi zilayisha umbhoshongo kancane. Ucwaningo lwamaphutha lomsebenzisi wegridi yakho lubeka phansi.
Amaphuzu wokukhuluma woMsabalalisi: Uma ikhasimende lensiza liqamba isigaba se-voltage bese lime lapho, awukwazi ukucaphuna i-OPGW. Cela iiphutha lamanje kanye nesikhathi sokusula - labo ababili bakhiqiza i-I²t edingekayo - bese ubuza ukuthi yiniukuphikiswa kwe-DC kwentambo yaphansi ekhona kuyinto. Ukubuza lokhu kukwenza usuke ekubeni othatha amanani ube uzakwethu wezobuchwepheshe, futhi kuthatha umyalezo owodwa.
I-voltage yenzani ku-ADSS
I-ADSS ayenzi lutho, ngakho-ke i-voltage ayigcizeleli ngogesi ngendlela egcizelela ngayo umqhubi. Ukucindezeleka kuphezu kwejacket.
Eduze kwama-conductor anikwe amandla, inkambu kagesi yakha ezungeze ikhebula. Ukungcoliswa komhlaba kanye nomswakama kugxilisa leyo nkambu ibe yiziqephu ezincane ezomile, futhi ukukhishwa okuncane okuphindaphindiwe kuguguleka i-polyethylene ngokuhamba kwesikhathi. Ukwehluleka kuhamba kancane. Ngokuvamile kubonakala ngonyaka owodwa kuya kwemithathu ngemva kokusebenza, okusho ukuthi isinqumo sokuthenga kanye nomphumela kuhlukaniswa isikhathi esiningi kangangokuthi akekho ozixhumanisayo.
I-countermeasure iAT (anti-tracking) inhlanganisela yejacket esikhundleni se-PE ejwayelekile. Sinikeza kokubili, ngokushintshana, phakathi 1.6 mm, 1.8 mm futhi 2.0 mm ubukhulu bodonga, nge 1.8 mm ±0.1 mm njengezinga lethu.
Ithiphu ye-Pro yabathengi: Cela umphakeli wakho asho, ngokubhala, i-compound yejacket nokuqina kodonga ku-quotation - hhayi nje “Ikhebula le-ADSS.” Izingcaphuno ezimbili ezibukekayo 15% ngokwehlukana kuvame ukuhluka kwe-PE-versus-AT, futhi into yolayini eshibhile ishibhile kuze kube ukulungiswa kokuqala okuqhutshwa ukuguguleka.
Inothi emathebula okukhetha: Izincomo zesigaba samandla kagesi ezijikelezayo embonini zibonisa umkhuba ojwayelekile, hhayi umthetho jikelele. Amakhodi egridi ayahluka kulo lonke elaseLatin America, Afrika kanye neMpumalanga Ephakathi, futhi isikhungo sokuklama sephrojekthi noma umnyango wobunjiniyela bezinsiza uphethe izwi lokugcina. Phatha wonke amathebula akulo mhlahlandlela - kuhlanganise nelethu - njengesiqalo saleyo ngxoxo.
Iyaguquguquka 2 - Ubude be-Span, nokuthi Kungani Inombolo Eyodwa Ingalokothi Iphendule
I-Span yilapho ama-athikili ajwayelekile enza umonakalo omkhulu, ngoba bacaphuna umkhawulo owodwa.
I-span figure isho okuthile kuphela eceleni kwezinye izimo ezintathu: umoya ukulayisha, ukulayishwa kweqhwa, kanye ne-sag evunyelwe. Ikhebuli efanayo ewela ngokukhululeka 300 m ethafeni elizolile ngeke libambe ibanga elifanayo ukuwela unqenqema lwentaba oluveziwe oluneqhwa elikhazimulayo.
Okwe-ADSS ngokuqondile, Ikhono le-span livela ekubaleni kwemicu ye-aramid noma ye-polyester kanye nesakhiwo sejakhethi - hhayi ekubalweni kwefayibha futhi hhayi ukusuka kububanzi. Kungakho i-span iyipharamitha enobunjiniyela o-oda kuyo, esikhundleni sempahla engashintshi ubheka phezulu.
| Ibhendi yespan | I-ADSS yejakhethi eyodwa | I-ADSS enejakhethi kabili | OPGW |
|---|---|---|---|
| Ngaphansi 100 m | Ukhululekile | Kucaciswe ngokwedlulele | Iyasebenza, uma ulayini udinga intambo yaphansi noma kunjalo |
| 100-200 m | Insimu ejwayelekile | Ukhululekile | Iyasebenza |
| 200-300 m | Umkhawulo ophezulu | Ukhululekile | Iyasebenza |
| 300-1000 m | Akutholakali | Idizayinelwe yona | Iyasebenza, Incike ku-RTS |
| Kuphelile 1000 m | Akutholakali | Ubunjiniyela obukhethekile | Iyasebenza, Incike ku-RTS |
Sakha i-ADSS yejakhethi eyodwa 100 m, 150 m, 200 m kanye 300 m izilinganiso ze-span.300 m uphahla, hhayi target - futhi iyehla lapho uphusha inani le-fiber. Ukwakhiwa kwejakhethi elilodwa le-fiber engu-288, Ngokwesibonelo, idinga isikhathi esibanjwa cishe 100 m, ngoba umnyombo osindayo udla isabelomali sokushuba.
Amaphuzu wokukhuluma woMsabalalisi: Uma ikhasimende lithi “600 m ubude,” imibuzo emithathu elandelayo ixazulula izingcaphuno: Siyini isivinini somoya sokuklama? Ingabe kukhona ukulayishwa kweqhwa? Iyiphi i-sag evunyelwe lapho uwela? Ngaphandle kwalezo, noma yisiphi isithembiso sesikhathi siwukuqagela - futhi ukuqagela yikho okubuyiswayo.
Iyaguquguquka 3 - Isakhiwo esisha noma i-Retrofit, kanye nokuthi Ungakwazi yini Ukuphuma
Lokhu okuguquguqukayo kunquma amaphrojekthi amaningi kunentengo, futhi ihlukana kahle.
Imigqa yokudlulisela emisha
Ulayini omusha udinga intambo yaphansi noma ngabe. Umbhoshongo uyaklanywa noma kunjalo, ukulayishwa kubalwa noma kunjalo, futhi ithimba lezintambo likhona esizeni. Ukukhetha i-OPGW kulesi sigaba kusho ukuthingokwandayo Izindleko ngocingo oluvamile ziphansi - uthenga i-fiber, hhayi ukuthenga uhlelo lokufaka oluhlukile.
Lona ukuphikisana okuqine kakhulu kwe-OPGW, futhi akuhlangene nokuba khona kwekhebula “kangcono.”
Ukulungisa kabusha umugqa osuvele uyasebenza
Manje izibalo ziyashintsha. Replacing an in-service ground wire with OPGW requires taking the circuit out of service — and the outage is rarely the cheap part.
Real-World Scenario: On a live network, an outage is not a scheduling detail. It goes through a dispatch approval queue, competes with maintenance windows already booked, and may require replacement generation or rerouted load for the duration. Project teams routinely find the outage window harder to secure than the cable is to manufacture. Fifteen working days for cable delivery means very little when the switching request sits in a three-month queue.
ADSS exists largely because of this problem. Because it holds no metal, it can be installed on spare tower positions without becoming part of the electrical system.
On live-line installation specifically: ukwakhiwa kwe-dielectric yonke kwenza kube nokwenzeka ngokomthetho. Ukuthi kuvunyelwe yini ukuqhubekalakho umugqa uncike ekilasini le-voltage, izinqubo zohlelo lokusebenza bukhoma, izimfanelo zabasebenzi kanye nokugunyazwa komnikazi wempahla. Yelapha “I-ADSS ingafakwa bukhoma” njengombuzo wesiphathimandla sokuphepha sensiza yakho, hhayi njengokucaciswa ongacabanga. Siyajabula ukukunikeza idatha yekhebula oyidingayo ikesi lakho lokuphepha; ngeke sikutshele ukuthi umsebenzi uphephile kulayini esingawubonanga.
Iyaguquguquka 4 - Izindleko Zobunikazi Ziphelele, Hhayi Intengo Ngemitha
Ukuqhathaniswa kwentengo ngemitha phakathi kwe-ADSS ne-OPGW kuyadukisa, ngoba bobabili abathengi into eyodwa. Intengo ye-OPGW ihlanganisa intambo yaphansi ongayithenga ngokuhlukile. ADSS’s price does not include a ground wire because ADSS is not one.
Four cost blocks belong in a serious comparison. Most published comparisons cover the first and skip the rest.
| Cost block | I-ADSS (-nye zwi) | I-ADSS (double) | OPGW |
|---|---|---|---|
| Okubalulekile | Lowest — roughly 25–40% below double-jacket, gap narrowing as fiber count rises | +20–25% over single at equal fiber count | Highest per metre, but includes the ground wire function |
| Installation labour | Lightest cable, no conductor work | Same method, heavier cable | Ground wire removal plus stringing; heaviest handling |
| Outage cost | Often avoidable | Often avoidable | Usually unavoidable on retrofits — frequently the largest single line item |
| Tower loading | 91 kg/km at 48 imicu | 128 kg/km at 48 imicu | 429.64 kg/km at 48 imicu |
| Long-term maintenance | Jacket erosion and UV ageing are the watch items | +10–15 years added life in harsh climates | I-Metallic corrosion kanye nobuqotho obuphansi yizinto zewashi |
Inombolo yokulayisha umbhoshongo akekho oyicaphunayo
Bheka lowo mugqa wesine. Ngesikhathi esifanayo 48 imicu, I-OPGW yethu inesisindo429.64 kg/km ngokumelene91 kg/km ye-ADSS yejakhethi eyodwa - cishe 4.7 izikhathi ezinzima - futhi cishe 3.4 izikhathi ezinzima kune-double-jacket ADSS at 128 kg/km.
Umthelela Wezentengiselwano: Emgqeni omusha, umbhoshongo wenzelwe lowo mthwalo futhi inombolo ayiyona indaba. Emgqeni omdala, umbuzo wesakhiwo ofika ngemuva kwesikhathi futhi ubiza imali - ukuhlolwa kokulayisha, futhi ngezinye izikhathi ukuqinisa. Ukuqinisa umbhoshongo akuveli kunoma iyiphi ikhotheshini yekhebula, yingakho nje iphazamisa isabelomali sokubuyisela emuva.
Lapho i-premium yejakhethi ephindwe kabili ikhokha khona
Ukukhokha u-20–25% ngaphezulu ngejazi lesibili kubukeka njengokusika okulula ngesikhathi sobunjiniyela benani. Enkungwini kasawoti ogwini, iqhwa elinzima noma izimo zeqhwa, ukusika okungalungile.
I-ADSS yejakhethi eyodwaayifaneleki kulezo zindawo. Inkungu kasawoti isheshisa ukuhlasela kwamakhemikhali ejazini; uma ibhantshi selisengozini, i-aramid ngaphansi ilahlekelwa ukuvikeleka kwayo. Isikhundla sethu siqondile: ezindaweni ezinosawoti omningi noma ezifundeni zeqhwa, sincoma ijakhethi ephindwe kabili kunokuthengisa ijakhethi elilodwa elijiyile njengendlela yokusebenza. Ukwakhiwa kwejakhethi kabili kunezela okulinganiselwe10 ku 15 iminyaka yempilo yesevisi kulezo zimo, eceleni kokumelana kangcono nokuguguleka kukagesi kanye nokuvinjwa kwamanzi okuyizingqimba ezimbili.
Siqinisekisa lokhu ngokuhlola isifutho sikasawoti samahora angu-720 kanye nokuguga kwe-UV okuhlolwe ku-GB/T 18899-2023. Buza noma yimuphi umphakeli ukuthi yiziphi izivivinyo zokuguga abazenzayo ngempela, futhi ngamahora amangaki.
Ukuyihlanganisa - I-Matrix Yokukhetha Okune-Variable
Umugqa ngamunye ongezansi uphethe isincomofuthi isimo esiwubhidlizayo. The overturning condition is the part that matters, because your project will eventually hit one.
| Scenario | Amandla kagesi | Span | Build type | Lean toward | What overturns it |
|---|---|---|---|---|---|
| New transmission line | HV / EHV | Any | Sakhe futhi sasebenzisa isikhunta esisha ukwenza lesi | OPGW | Tower design already fixed and cannot absorb the load |
| Retrofit, ground wire in good condition | HV / EHV | ≤ 300 m | Retrofit | I-ADSS yejakhethi eyodwa | Coastal, uqweqwe lweqhwa, or high-contamination site → double-jacket |
| Retrofit, long crossing | Any | > 300 m | Retrofit | I-ADSS enejakhethi kabili | Outage is achievable and a ground wire upgrade is due anyway → OPGW |
| Suburban distribution | MV | ≤ 200 m | Either | I-ADSS yejakhethi eyodwa | Heavy pollution or coastal exposure → AT jacket, or double-jacket |
| Long-distance backbone | HV / EHV | Mixed | Sakhe futhi sasebenzisa isikhunta esisha ukwenza lesi | OPGW | Route crosses terrain where outages cannot be scheduled → ADSS |
| Any project, harsh climate | Any | Any | Either | Double-jacket ADSS or OPGW | Neither — do not put single-jacket into salt fog or icing |
The variable this matrix cannot decide for you: fiber count
Almost no buying guide addresses fiber count, yet every purchase order requires the number.
Two principles apply. Okokuqala, build in headroom — utilities that specify only for today’s SCADA and protection traffic tend to return within a few years needing capacity for substation automation, video inspection or telecom backhaul, and a second cable pull costs far more than spare fibers ever did. Around 30% spare capacity is a common planning allowance.
Okwesibili, respect the trade-off. More fibers means a heavier, thicker cable, which reduces achievable span. Our single-jacket ADSS runs 4 ku 144 fibers as standard, nge 288 available on request when the span stays near 100 m. Double-jacket reaches 288 as standard and 576 ngesicelo. OPGW tops out at 96 imicu.
Ithiphu ye-Pro yabathengi: Decide fiber countngaphambili you finalise the span rating, not after. Fiber count changes the cable weight, cable weight changes the tension, and tension changes the span the cable can hold. Reversing that order is how projects end up re-ordering.
Field Traps That Appear After the Cable Is Already Hanging
Both cable types have well-documented failure patterns. Neither pattern is really about the cable.
On the ADSS side
- Jacket erosion from the wrong compound. Standard PE in a high-field or high-contamination position degrades. AT compound exists for this reason. The symptom appears years later, far from the purchase decision.
- Aeolian vibration. A light, all-dielectric cable in steady wind oscillates. Without dampers, the fatigue concentrates at the clamps.
- Single-jacket in the wrong climate. Covered above — this is a specification error, not a manufacturing one.
- Fittings assumed to be interchangeable. They are not. Single-jacket and double-jacket ADSS have different outer diameters, ngakho-ke ukumiswa kanye nama-dead-end clamps osayizi owodwa ngeke abambe enye ngendlela efanele. Amabhajethi ayisa intengo yekhebula kodwa aphinde asebenzise into yomugqa wokufakwa endala aba mafushane.
Ohlangothini lwe-OPGW - lapho ukwehluleka kuhlangana khona
Le ngxenye cishe akukho makhava okuqhathanisa, futhi idinga ukunakwa.
Uphenyo lwenkundla ngemuva kwezindinganiso zokufakwa kwezinsiza ezishicilelwe lukhomba esiphethweni esifanayo: Amaphutha e-OPGW agxile ku-ukwehlisa kanye nokuqedwa kwe-splice, hhayi ngesikhathi. Ikhebula phakathi kwemibhoshongo liziphatha kahle. Ukwehluleka kwenzeka kumamitha ambalwa wokugcina, lapho ikhebula lehla ngesakhiwo bese lingena endaweni ebiyelwe yi-splice.
Izindlela ezintathu ziyayishayela, futhi zontathu ziyi-physics esikhundleni somthetho wendawo:
- Ukulahlekelwa yi-insulating clearance. Lapho i-downlead ihloselwe ukuhlala icacile nesakhiwo, izinsimbi zenjoloba ezigugayo namabhande angagqwali agqwalile avumela ikhebula ukuthi inkungu ixhume. Ukuguguleka kokukhipha kuyalandela, futhi imicu iyaphuka.
- Ukuxhumana kwensimbi okungafani. Ibhande lensimbi engagqwali ngokumelene nocingo lwe-aluminium limisa ukugqwala kwe-galvanic. Ibhendi iyahluleka, khona-ke ukwesekwa kwehluleka.
- Izinto ze-Ferromagnetic ezizungeze ikhebula le-slack eligoqiwe. I-OPGW ithwala okwamanje okuyengiwe ngokuqhubekayo kanye nephutha lamanje ngezikhathi ezithile. Ikhebula le-slack coiling ngaphakathi kohlaka lwesitoreji sensimbi, noma ukuyibopha ngocingo lwensimbi, iziphatha njengokwengeza i-core material ku-transformer - i-inter-turn induced voltage iyakhuphuka futhi ishise ngezintambo. I-insulating, amafreyimu wesitoreji esingewona uzibuthe kanye nokubopha kwe-aluminium tape kuyakugwema.
Ithiphu ye-Pro yabathengi: Uma uhlola ikhotheshini ye-OPGW, bheka ngale kwekhebula. Buza ukuthi umphakeli uhlinzeka nganiiphakheji yokuqeda - ukuvala ama-fasteners aphansi, amafreyimu okugcina amakhebula angenamagnetic, ukuvalwa kwama-splice, i-hardware ephansi. Ikhebuli eshibhile ene-downled ethuthukisiwe yilapho kuhlezi khona ubungozi besikhathi eside. Sinikezela ngekhebula kanye nesethi yezisekeli — okokufakwayo osekwenziwe ngaphambilini, ama-dampers wokudlidliza, ukugreda izindandatho, ukuvalwa kwe-splice nama-racks okugcina - ngaphansi kwewaranti eyodwa, ikakhulukazi ngakho ukuxhumana phakathi kwabo akuyona indawo empunga yomuntu.
Umugqa Ophansi - Imibuzo Emithathu Okufanele Uyibuze Ngaphambi Kokucashunwa Noma Umuntu
Yeqa ukuqhathanisa kwesici. Le mibuzo emithathu ixazulula iningi lesinqumo:
- Ingabe lo mugqa unentambo yaphansi engaphezulu, futhi umnikazi uzoyishintsha? Cha → ADSS. Yebo → I-OPGW iphezu kwetafula ngempela.
- Isiphi isikhathi eside kakhulu, futhi yiziphi izimo zomoya neqhwa lapho? Kuphelile 300 m ikhipha i-ADSS yejakhethi eyodwa ngokushesha. Izimo zasogwini noma zeqhwa ziyayikhipha kunoma yisiphi isikhathi.
- Yini ekucaphuni ngaphandle kwekhebula? Inhlanganisela yejakhethi nokuqina kodonga lwe-ADSS. Ukumelana kwe-I²t ne-DC kwe-OPGW. Ukufakwa, ukuvalwa kwe-splice kanye ne-hardware ephansi yakho kokubili. Izingcaphuno ezimbili ziqhathaniswa kuphela uma ziqukethe ububanzi obufanayo.
Isikhathi sokuhola sokukhiqiza asivamile ukuthi sishayele isinqumo, kodwa kufanelekile ukwazi: thina stock 12 kuya ku-48-fiber ADSS ene-a 1 km oda ubuncane, kanye nemikhumbi ejwayelekile ye-OPGW e- 3 km ubuncane obunokujwayelekile 15 isikhathi sokusebenza sosuku lokusebenza. Ukugunyazwa kokucisha ngokuvamile kuthatha isikhathi eside kunakho kokubili.
Awunasiqiniseko sokuthi iyiphi elingana nomugqa wakho? Umkhiqizi owakha kokubili i-ADSS yejakhethi eyodwa, I-ADSS enejakhethi ephindwe kabili kanye ne-OPGW ayinaso isizathu sokukuyisa kwenye yazo. Sithumelele isigaba samandla kagesi, the span profile and whether the line is new or in service, and we will tell you which of the three fits — including when the answer is the cheapest one. Izintambo ze-ADSS · Izintambo ze-OPGW
Technical figures in this guide come from our own product specifications and factory testing. Voltage-class and span guidance reflects common industry practice and should be confirmed against the grid code and design standards applicable to your project.
