Overhead service drop cables yog cov cables uas muab cov kab hluav taws xob sab nraum zoov. Lawv yog txoj kev xa hluav taws xob tshiab ntawm cov khoom siv hluav taws xob siv hluav taws xob thiab cov kab hluav taws xob hauv av, uas tau pib tshawb fawb thiab kev tsim kho thaum ntxov xyoo 1960.
Cov kev pabcuam nyiaj siv ua haujlwm poob qis yog tsim los ntawm cov txheej txheem rwb thaiv tsev thiab txheej tiv thaiv, zoo ib yam li cov txheej txheem tsim khoom ntawm cov kab txuas txuas. Txawm hais tias lawv muaj kev cuam tshuam ntau dua rau kev cuam tshuam sab nraud thiab tsis zoo nkauj, lawv tau siv dav hauv qhov chaw uas nws nyuaj rau nteg hauv av cables vim lawv cov khoom siv hluav taws xob siab, kev ruaj ntseg, thiab kev saib xyuas yooj yim.
Yuav ua li cas peb xaiv overhead service drop cable?
Peb hom kev pabcuam xaim hluav taws xob yog duplex kev pabcuam poob cable, triplex kev pabcuam poob cable, thiab quadruplex kev pabcuam poob cable. Lawv txawv raws li tus naj npawb ntawm cov conductors thiab kev siv ntau. Cia peb luv luv tsom mus rau lub luag haujlwm ntawm txhua tus ntawm no.
Duplex kev pab cuam poob cables nrog ob conductors yog siv nyob rau hauv ib-theem fais fab kab rau 120-volt daim ntaub ntawv. Lawv nquag siv nyob rau hauv lub teeb pom kev zoo sab nraum zoov, nrog rau txoj kev teeb pom kev zoo. Ntxiv mus, lawv feem ntau siv hauv kev tsim kho kev lag luam rau kev pabcuam ib ntus. Qhov tseeb lom zem- American duplex overhead cable qhov ntau thiab tsawg yog muaj npe tom qab dev yug, suav nrog tus neeg yug, tus tswv yug yaj, thiab chow.
Triplex kev pab cuam poob cables nrog peb tus neeg xyuas pib yog siv los nqa lub zog los ntawm cov khoom siv hluav taws xob rau cov neeg siv khoom, tshwj xeeb, rau lub taub hau huab cua. Ib zaug ntxiv, American triplex kev pabcuam poob cables muaj ib zaj dab neeg nthuav rau lawv lub npe. Lawv muaj npe tom qab hom tsiaj hiav txwv, xws li qwj, clams, thiab crabs. Cov npe cable suav nrog Paludina, Valuta, thiab Minex.
Quadruplex kev pab cuam poob cables nrog plaub conductors yog tsim los muab peb-theem fais fab kab. Lawv txuas ncej-mounted hluav taws xob transformers, feem ntau nyob rau hauv cov cheeb tsam nyob deb nroog, nrog rau cov kev pab cuam lub taub hau ntawm cov neeg siv kawg. Quadruplex cables uas dhau qhov yuav tsum tau muaj ntawm NEC muaj npe tom qab nees yug, xws li Gelding thiab Appaloosa.
Kev tsim kho ntawm Aluminium Service Drop Cables
Txawm hais tias muaj ntau lub hom phiaj thiab tus naj npawb ntawm cov conductors, tag nrho cov khoom siv hluav taws xob siv hluav taws xob muaj cov kev tsim kho zoo sib xws. Cov conductors ntawm cov cables no yog ua los ntawm txhuas alloy 1350-H19,6201-T81 los yog ACSR.
Lawv muaj qhov sib txuas ntawm polyethylene XLPE rwb thaiv tsev uas muaj kev tiv thaiv zoo los ntawm kev pheej hmoo ntawm sab nraum zoov. tshwj xeeb, nws muaj kev tiv thaiv zoo rau cov dej noo, huab cua puag, thiab kev cuam tshuam ntawm ntau yam tshuaj. Kev ua haujlwm kub ntawm aluminium overhead cables nrog XLPE rwb thaiv tsev yog 90 degrees Celsius. Tsis tshua muaj, polyethylene rwb thaiv tsev yuav siv tau los ntawm XLPE rwb thaiv tsev. Hauv qhov no, qhov ntsuas kub ua haujlwm tau txo qis rau 75degrees, uas yog ib yam uas yuav tsum muaj nyob rau hauv lub siab thaum xav txog koj qhov project hluav taws xob. Qhov ntsuas hluav taws xob ntawm tag nrho cov khoom siv hluav taws xob siv hluav taws xob yog 600 volts.
Txhua qhov kev pabcuam aluminium poob cables muaj qhov nruab nrab tus neeg xyuas pib lossis cov xaim xaim xaim. Lub hom phiaj ntawm tus neeg xa xov liaison yog tsim kom muaj txoj hauv kev nruab nrab rau hluav taws xob kom dim thiab tsis txhob muaj xwm txheej, uas yog qhov tseem ceeb hauv ib puag ncig ntawm kev sib txuas sab nraum zoov. Cov xaim xaim xaim tuaj yeem ua los ntawm cov khoom sib txawv, xws li AAC, ACSR, lossis lwm hom aluminium alloy.
Yog tias koj xav tau txais kev sib tham txog cov kev pabcuam poob qis, thov hu rau peb.
Post lub sij hawm: Sep-20-2024