Cov roj hmab-insulated saj zawg zog tooj liab stranded cable yog ib qho yooj yim rau nruab xaim.
Muaj ntau yam ntawm cov khoom no. Nyob rau hauv xws li cables, ob peb conductors ua raws li ib tug tam sim no conductor, uas yog twisted ua ke.
Thaum xaiv qhov kev xaiv twg yog qhov tsim nyog, nws yog qhov tsim nyog los tsim cov xwm txheej nws tus kheej thiab lub hom phiaj ntawm kev siv cov khoom zoo li no. Nyob rau tib lub sijhawm, txhua hom kev hloov pauv ntawm tooj liab stranded cable hauv cov roj hmab rwb thaiv tsev muaj lawv tus kheej cov yam ntxwv, qhov zoo thiab qhov tsis zoo.
Npes
Txhua qhov hloov tau yooj yim tooj liab ntau cov tub ntxhais hauv cov roj hmab rwb thaiv tsev rau kev siv dav siv tau ua raws li cov cai ntawm GOST 13497-77. Cov pab pawg no suav nrog, piv txwv li, xws li cov khoom xws li KG.
Nws yog universal. Nyob rau hauv cov nqe lus ntawm saj zawg zog, lub zog stranded tooj liab saj zawg zog cable belongs rau qeb 5. Nws feem ntau yog siv rau cov khoom siv vuam, nrog rau kev tso rau sab nraud thiab sab hauv tsev.
Lwm qhov piv txwv yog ib qho kev tiv thaiv tooj liab hloov tau yooj yim multicore cable KUPEV. Nws yog siv los xa cov cim tsis muaj zog heev. Qhov no kuj suav nrog kev tswj cable hloov tau yooj yim tooj liab tso tseg KUPV.
Qhia rau 4 thiab 5 chav kawm hloov tau yooj yim. Cais, muaj kev hloov kho nrog tinned, galvanized thiab stainless hom braid. Yog tias siv cov hlau zoo sib xws, ces "Pm", "P" thiab "PN" ntxiv rau cov npe.
Ntxiv rau, muaj lwm yam khoom: KGN, KPG, CPGS, KPGSN, KPGU. Yog tias lawv raug tsim los siv rau hauv qhov chaw sov sov, ces qhov kev xaiv "T" ntxiv. Hauv qhov no, GOST 15150-69 yog siv.
Thaum "HL" ntxiv rau cov npe, ces cov xov hlau zoo li no yog npaj rau thaj chaw uas muaj huab cua txias. Hauv qhov no, tib GOST siv.
chav kawm yooj yim
Cov pawg hauv qab no ntawm kev hloov pauv ntawm cable yog qhov txawv:
- Sab hauv los ntawm 1 mus rau 59 xov hlau, thiab lawv cov hlaws yog los ntawm 0.03 txog 1000 square meters. mm.
- Dav yog 0.5-2000 square meters mm. Qhov ntau yog kwv yees li 7-91.
- Hauv txoj kab uas hla, cov cores yog los ntawm 0.33 txog 0.87 square meters. mm.
- Diameter - 0.06-400 square meters mm.
- 0.03-625 sq. mm.
- Cov kab hluav taws xob suav tias yog qhov hloov pauv tau tshaj plaws. Txoj kab uas hla - 0.06-0.4 sq. mm.
Txheej xwm thawj qeb yog nominal, txij thib ob mus rau plaub - siab, thiab ob kawg - siab.
yam ntxwv
Cov roj hmab-insulated saj zawg zog tooj liab stranded cable muaj cov yam ntxwv ua haujlwm tshwj xeeb.
Cov khoom yog roj resistantCov khoom, withstands Frost, tsis kis hluav taws thiab yog yus muaj los ntawm insensitivity rau ozone. Vim yog siv ethylene propylene hom roj hmab ua ke nrog cov roj hmab butyl, cov khoom tau txais nrog cov ntsuas lub zog siab.
Lawv siv los txuas cov khoom siv txawb, tsim rau 660 V thiab zaus ntawm kwv yees li 50 Hz. Cables tuaj yeem siv nyob rau hauv ntau yam kev nyab xeeb. Tab sis lub sij hawm ntev kub yuav tsum tsis txhob siab tshaj 65 ° C.
Cables haum rau kev nyab xeeb, qhov cua, kev tsim kho, cov khoom siv vuam.
Qhov zoo thiab qhov tsis zoo
Txhua hom cable los ntawm txhua qhov kev txiav txim siab muaj nws tus yam ntxwv, pluses thiab minuses.
Tab sis feem ntau, lawv cov txiaj ntsig suav nrog cov hauv qab no:
- nce kev hloov pauv;
- qis conductance;
- muaj zog thiab kev cia siab;
- siab hloov peev xwm.
Txhim elasticity yog ua tiav los ntawm kev siv cov roj hmab tshwj xeeb insulating txheej. Tsis tas li ntawd, cov xov hlau tiv taus cov teebmeem ntawm cov kua qaub, alkalis, roj. Moisture tsis yog ib qho teeb meem. Nrog rau qhov rwb thaiv tsev no, cov khoom tuaj yeem tiv taus qhov kub thiab txias thaum lub caij luv luv tshwm sim. Tab sis nco ntsoov tias lub hnub ci ncaj qha tsis tsim nyog kiag li.
Muaj lwm qhov tsis zoo. Ua ntej tshaj plaws, qhov no txhawj xeeb txog kev ua haujlwm tsis zoo hauv HF tes hauj lwm.
Tsis tas li ntawm minuses yog tus nqi siab. Tsis tas li ntawd, vim lub fact tias cov hlab ntsha yog rounded, txoj kab uas hlasab nraud nws hloov tawm ntau dua li cov khoom lag luam uas muaj cov duab ntawm cov sectors.
tooj liab cables
Roj hmab insulated tooj liab cable muaj stranded hom tub ntxhais, uas tuaj yeem tinned. Cov khoom xws li KPGSN kuj tseem qhwv nrog ib zaj duab xis tshwj xeeb.
Raws li cov roj hmab rwb thaiv tsev, qhov no yog RTI-1, thiab nws yog tsim los ntawm butadiene hom roj hmab, thiab qee zaum cov khoom siv ntuj kuj siv.
Cable stranded tooj liab hloov tau 2x1, 5 lossis lwm qhov ntau thiab tsawg tuaj yeem muaj cov cim digital thiab xim sib xws. Lub hauv paus yog polyester threads. Xws li cables nrog tooj liab conductors yuav twisted yam tsis muaj ntaub ntawv ntxiv. Lub plhaub yog ua los ntawm cov roj hmab tshwj xeeb uas tsis yog-flammable, raws li chloroprene ntxiv.
Cable stranded tooj liab hloov tau 5x4 thiab lwm qhov ntau thiab tsawg yog siv hauv dej thiab hauv av, hauv ntau chav nrog cua qhov cua. Tab sis qhov tseem ceeb tshaj plaws yog nag lossis daus thiab ultraviolet rays tsis cuam tshuam. Cov av noo siab vim yog condensation tau tso cai.
Nkoj xaim
Muaj tshwj xeeb marine cables nrog roj hmab rwb thaiv tsev. Lawv muaj shielded hlau. Tsis tas li ntawd, lawv tau armored nrog galvanized hlau braid.
Cov khoom zoo sib xws yog siv hauv kev tswj hwm thiab xov tooj. Lawv tsim nyog rau kev teeb tsa sab hauv tsev thiab sab nraum zoov, tab sis yuav tsum muaj kev tiv thaiv UV nyob rau hauv txhua rooj plaub.
Cov hlau muaj 2 txoj hlua tooj liab. Lub braid yog steel. Nws yuav tsum tau primed. Cov khoom tiv taus100% av noo.
Cable design
KG yog ib qho piv txwv zoo ntawm kev hloov pauv ntau lub cable nrog lub hnab roj hmab. Sab hauv, tooj liab hlau nrog tin-lead txheej yog siv. Cov hlab ntsha yog puag ncig. Raws li kev sib cais, ib zaj duab xis tshwj xeeb yog siv, uas npog cov cores twisted.
Ib yam khoom tsis muaj zaj duab xis tau tso cai. Tab sis tom qab ntawd cov leeg yuav tsum tau muab cais tawm ntawm lub plhaub. Rau rwb thaiv tsev, tshwj xeeb roj hmab yog siv. Nws muaj ib tug yam ntxwv xim. Lub zero core feem ntau yog xiav. Cov xim no tuaj yeem siv rau lwm tus, tab sis tsis yog av - nws ib txwm ntsuab-daj. Lub sheath yog ua los ntawm roj hmab hose hom.
Raws li KGN, nws kuj muaj roj-resistant roj hmab plhaub. Nws tsis kis hluav taws. KPGSN muaj tib yam khoom. CNG muaj tib lub interlayer li CG, tab sis nws muaj kev nce qib ntawm elasticity. Qhov no kuj siv tau rau KPGN.
Lub CPGS muaj tib lub plhaub li CPGS tab sis muaj cov tub ntxhais roj hmab profiled.
KPGU muaj qhov sib txuas zoo ib yam li KPG, tab sis tib lub sijhawm, cov cores tau nce kev hloov pauv, thiab muaj cov roj hmab sib xyaw ua ke ntawm lawv.
PRS tau twisted strands. Ob lub rwb thaiv tsev thiab lub plhaub sab nraud kuj yog roj hmab. Lub PRSU muaj tib lub cable, tab sis lub sheath yog thicker.
Yuav siv li cas
KG cable yog siv rau qhov kub ntawm -40 txog 50 ° C. Hauv qhov no, khoov tau tso cai, tab sis lub vojvoog yuav tsum muaj tsawg kawg yog 8 txoj kab uas hla.
KGN yog siv thaum muajqhov ua tau ntawm kev sib cuag nrog cov khoom uas muaj tshuaj tua kab mob los yog cov khoom ua phem. Haum rau kev ua liaj ua teb. Qhov kub ntawm -30 txog 50 ° C tau tso cai. Los ntawm txoj kev, CPGN yog siv nyob rau hauv tib yam mob. Qhov no kuj siv tau rau KPGSN.
CNG yog siv ntawm qhov kub ntawm -50 txog 50 ° C, tab sis khoov nrog lub vojvoog ntawm tsawg kawg 5 txoj kab uas hla tau tso cai.
CPGS yog haum rau kev poob siab thiab muaj zog siab, siab loads. Kev ua haujlwm kub yog -50 txog 50 ° C. Tso cai khoov, tab sis lub vojvoog yuav tsum yog tsawg kawg 5 core diameters.
KPGU tso cai khoov nrog lub vojvoog ntawm 10 txoj kab uas hla. Qhov kub zoo yog -50 txog 50 ° C.
PRS yog siv rau cov khoom siv nrog qhov hluav taws xob ntawm kwv yees li 380 V. Qhov zaus yog mus txog 200 Hz. Ua haujlwm kub - los ntawm -40 txog 65 ° C. Tib yam siv rau PRSU.
