Aluminium Conductor Composite Core Cable (ACCC) Advantage Taw Qhia

Nyob rau tam sim no, cov kab hluav taws xob overhead yog siv los thauj hluav taws xob mus ntev. Pa cables feem ntau yog aluminium conductor steel reinforced (ACSR). Txij xyoo 1990s, carbon fiber composite cores (aluminium conductor composite core) tau siv los ua cov core bar ntawm cables. ACCC muaj qhov zoo hauv qab no tshaj li cov neeg coj ua ib txwm muaj.

1. Siab zog thiab lub teeb yuag.

Lub zog tensile ntawm cov hlau zoo tib yam yog 1240 ~ 1410MPa, thaum cov carbon fiber puas core ntawm ACCC tus neeg xyuas pib yog ob zaug tus qub, thiab nws lub ntiajteb txawj nqus tsuas yog 1/4 ntawm steel. Qhov hnyav ntawm ib chav tsev ntev ntawm ACCC conductors ntawm tib lub specification yog 10% ~ 20% sib dua li cov pa ACSR conductors. Qhov no tso cai rau ntauwd ncua ntawm overhead cable kom loj hlob, txo tus naj npawb ntawm cov yees los ntawm txog 16% thaum txo tus hneev taw.

2. High conductivity thiab tsawg kis tau tus mob.

Nyob rau hauv tib txoj kab uas hla, qhov chaw hla ntu ntawm ACCC's aluminium strand yog 1.29 lub sij hawm ntawm cov kab lus pa. Yog li ntawd, lub peev xwm load yog nce los ntawm txog 29%. Vim tias ACCC hlau tsis muaj qhov sib nqus poob los ntawm cov khoom siv hlau thiab cov nyhuv tshav kub. Ntxiv rau, nws muaj qhov ua haujlwm qis dua rau tib lub load, uas txo kev kis tau los ntawm txog 6%. Kuj, vim ACCC siv trapezoidal txhuas hlau, nws cov tsos yog smoother tshaj ACSR's round txhuas hlau. Qhov saum npoo roughness coefficient zoo dua, yog li ua rau corona pib voltage ntawm cov hlau thiab txo cov corona poob.

3. Tsawg arc sag, txo sag los ntawm ntau tshaj ob zaug.

ACCC xaim muaj cov yam ntxwv ntawm kev so qis dua piv rau cov pa hlau. Nyob rau hauv qhov kub thiab txias, lub arc sag tsawg dua 12% ntawm steel-core aluminium-stranded hlau. Nws tuaj yeem txo qhov chaw rwb thaiv tsev ntawm cov kab hluav taws xob overhead, txhim kho kev nyab xeeb thiab kev ntseeg siab ntawm kev ua haujlwm ntawm cov hlau.

4. Corrosion Kuj.

ACSR's aluminium hlau thiab steel tub ntxhais vim raug rau huab cua mus ntev. Ib puag ncig ib puag ncig yuav corrode cov khoom siv hlau, yog li txo lub zog ntawm cov hlau thiab cuam tshuam rau lub neej ntawm cov hlau. Carbon fiber composite core tsis xeb, Corrosion Kuj, overcoming lub corrosion ntawm galvanized steel stranded hlau core. Thiab nws kuj zam qhov teeb meem electrochemical corrosion ntawm aluminium hlau thiab galvanized steel hlau thaum tus neeg xyuas pib muaj zog. Zoo dua daws cov teeb meem kev laus ntawm kev ua haujlwm ntev ntawm cov hlau, qhov kev pab cuam lub neej yog siab dua cov hlau zoo tib yam ob zaug.