Polymer insulators(tseem hu ua composite los yog nonceramic insulators) muajib fiberglass

pas nrig txuas rau ob lub hlau kawg fittings them los ntawm cov roj hmab weathershed system.Polymer

insulators yog thawj tsim nyob rau hauv 1960s thiab ntsia nyob rau hauv 1970s.

Polymer insulators, tseem hu ua composite insulators, yog txawv ntawm porcelain insulators

nyob rau hauv hais tias lawv yog tsim los ntawm ib tug polymer los nag-pov thawj sheath thiab ib tug mandrel ntawm resin khoom.Nws yog

characterized los ntawm tsis yooj yim rau sau dej, siab tiv thaiv fouling thiab lub teeb yuag.Ntawm

Tam sim no, Nyiv tsis yog tsuas yog txhawb nqa kev siv hluav taws xob railways, tab sis kuj yog lub zog hluav taws xob,

thiab nws xav tias yuav dhau los ua cov khoom siv insulating tshiab (rau catenary) yav tom ntej.

Daim ntawv thov

Cov conductors ntawm overhead fais fab kab yog txuas thiab tsau rau ntawm tus pej thuam los ntawm insulators

thiab kho vajtse.Insulators siv rau kev rwb thaiv tsev ntawm cov xov hlau thiab cov yees yuav tsum tsis tsuas yog tiv taus

qhov kev txiav txim ntawm kev ua haujlwm voltage, tab sis kuj yuav raug rau qhov kev txiav txim ntawm overvoltage thaum lub sijhawm ua haujlwm,

thiab kuj dais qhov kev txiav txim ntawm mechanical quab yuam, kub hloov thiab lub zog ntawm lub

ib puag ncig ib puag ncig, yog li lub insulator yuav tsum nyob rau hauv qhov zoo.insulation zog thiab

tej yam muaj zog.Feem ntau, qhov saum npoo ntawm lub insulator yog corrugated.

Qhov no yog vim: Ua ntej, qhov kev ncua deb (tseem hu ua creepage nrug) ntawm cov insulator

tuaj yeem nce ntxiv, thiab txhua yoj strand kuj tuaj yeem ua lub luag haujlwm hauv kev thaiv cov arc;

Qhov thib ob yog tias thaum nws los nag, cov dej phwj tuaj ntawm cov insulator yuav tsis ntws ncaj qha

los ntawm sab sauv ntawm lub insulator mus rau sab qis, kom tsis txhob tsim cov kav dej phwj tuaj

thiab ua rau muaj kev sib tsoo luv luv, thiab ua lub luag haujlwm hauv kev thaiv cov dej phwj tuaj;

Qhov thib peb yog hais tias thaum cov pa phem nyob rau hauv cov huab cua poob rau ntawm lub insulator, vim lub unevenness ntawm lub

insulator, cov pa phem yuav tsis sib npaug ntawm cov insulator, uas txhim kho kev tiv thaiv kev ua qias tuaj

muaj peev xwm ntawm cov insulator rau ib qho twg.Muaj ntau hom insulators rau cov kab hluav taws xob overhead,

uas tuaj yeem raug cais raws li hom qauv, insulating nruab nrab, txoj kev sib txuas thiab

bearing muaj peev xwm ntawm lub insulator.