CM, CMR, thiab CMP yog peb qhov sib txawv ntawm cov hluav taws-txuas hluav taws xob cable thiab network cable tau txhais los ntawm National Hluav Taws Xob Cov Qauv Hluav Taws Xob (NEC), uas zwm rau UL cov nplaim hluav taws-rov nplaim hluav taws xob cable thiab network cable, uas tuaj yeem tiv thaiv hluav taws thiab xyuas kom cov ntaub ntawv chaw thiab kev nyab xeeb ntawm tus kheej. Yog li dab tsi yog qhov txawv ntawm peb hluav taws xob hluav taws xob hluav taws xob no? Kab lus no yuav piav ntxiv rau koj.
Dab tsi yog CM?
CM tam sim no feem ntau siv cov nplaim hluavtaws-qib qib theem ntawm cable thiab network cable. Nws yog nplaim hluav taws-rov ua raws li cov tshuaj halogenated. Nws qhov kev ntsuas tus qauv yog UL 1581. Raws li lub ntsiab lus, ib qho me me ntawm CM-theem cable thiab network cable yuav hlawv tsis pub dhau 5 meters. Nws yuav tawm mus.
Tam sim no, txheej sab nrauv ntawm CM-chav kawm cable thiab network cable yog feem ntau ua los ntawm cov khoom siv PVC, thiab txheej txheej insulating yog ua los ntawm cov khoom siv hluav taws xob ntau hauv PE, uas ua rau muaj cov kuab lom, haus luam yeeb thiab kub ntau thaum hlawv. CM-theem xov tooj cable network kab ke feem ntau yog siv hluav taws xob kab rov tav nyob hauv tib chav, thiab feem ntau pom muaj nyob rau thaj chaw xws li United Kingdom, Asia thiab Australia.
CMR yog dab tsi?
Kev nyab xeeb ntawm CMR kev ntsuam xyuas hluav taws kev sib tw thib ob. Nws feem ntau yog ua tiav los ntawm kev nce qhov kev tiv thaiv ntawm cov cable (txog 300 ° C) kom ua tiav lub hom phiaj tsis muaj kev phom sij. Nws qhov kev ntsuas tus qauv yog UL 1666. Hauv kev txhais, nyob rau hauv kev yuam kev sib txuas ntawm tus kiv cua, ib qho Cov kab ke CMR cable thiab network cable yuav tsum tau tua nws tus kheej tsis pub dhau 5 metres ntawm kev sib tsoo.
Tam sim no, cov hnab riam sab nrauv ntawm CMR kab hlau network cable yog ua los ntawm cov nplaim hluavtaws-rov ua cov khoom siv PVC, thiab cov txheej rwb thaiv tsev yog ua los ntawm cov khoom siv siab-PE. Tom qab muab hlawv nrog nplaim taws, nws yuav tawm cov roj halogenated lom (chlorine) thiab ua rau vapor, thiab cov pa roj halogenated yuav ceev kom cov pa oxygen tso rau hauv huab cua kom tua cov nplaim taws. CMR-class cable network cable siv dav hauv kab ntawv thov kev siv qhov chaw uas qhov cua tshuab ua rau lub cev sib cais los ntawm cov kab hlau, uas yog, nyob rau sab hauv tsev txoj kab ua kab ntsug, uas yog cov muaj nyob hauv Asia thiab Australia.
CMP yog dab tsi?
CMP tau muaj kev nyab xeeb tshaj plaws. Nws muaj cov nplaim hluav taws zoo kawg nkaus kom zoo thiab yuav tsis tawm ntawm cov pa luam yeeb loj thaum hlawv. CMP cov qauv ntsuas yog UL 910. Raws li UL txhais, cov kab ntawm CMP cable thiab network cable yuav tsum tau muab tua kom tsis pub dhau tsawg dua 5 metres cov roj sib nraus nyob rau hauv cov xwm txheej ntawm yuam kom sib zog sib txuas ntawm kiv cua.
Cov hnab riam sab hauv ntawm CMP xov tooj cua network cable yog ua los ntawm cov khoom siv fluorine (xws li PTFE polytetrafluoroethylene, FEP fluorinated ethylene propylene), uas muaj qhov kub tsis ua haujlwm thiab qhov kub siab tiv thaiv. Txij li CMP siv hluav taws xob network cable siv cov tshuaj Teflo-based, nws tuaj yeem tiv thaiv kev sib kis ntawm kev sib txuas thiab txo cov pa taws thiab cov pa luam yeeb tawm. Txawm tias muaj hluav taws kub, lub tsev yuav tsis tau sau nrog cov pa taws loj lossis muaj kuab lom nyob rau los ntawm qhov kub hnyiab ntawm lub network cable. Yog li, CMP-chav kawm cable thiab network cable raug siv rau hauv huab cua xa cov pa hluav taws xob siv nyob rau hauv cov cua ntsawj lossis cov khoom siv huab cua, feem ntau pom hauv Canada thiab Tebchaws Asmeskas.
CM VS CMR VS CMP: Dab tsi yog qhov txawv?
Tom qab cov lus qhia saum toj no, koj yuav tsum tau tshawb pom qhov sib txawv hauv qhov ntsuas hluav taws, kev kub nyhiab cov teeb meem thiab cov hnab riam sab nraud ntawm CM / CMR / CMP. Ntxiv rau, lawv muaj qhov sib txawv ntawm cov nqi, thaj chaw thov, thiab hloov chaw.
1. Tus nqi sib txawv
Txij li cov hnab riam txheej sab nrauv ntawm CM siv hluav taws xob network cable thiab CMR cable network cable yog ua los ntawm cov khoom siv PVC, thiab CMP cable network cable yog ua los ntawm cov khoom siv fluorine, tus nqi ntawm CM cable network cable thiab CMR cable network cable yog qhov pheej yig dua. dua li tus nqi ntawm CMP them cable hluav taws xob cable.
2. Cov chaw thov sib txawv
Nyob rau hauv ib txwm muaj xwm txheej, CM cable siv rau cov xov hlau nruab nrab thiab kab rov tav hauv lwm qhov chaw ib puag ncig dua li tsim lub tsev nce thiab chav cua. CMR tuaj yeem siv rau cov xov hlau ntsug ntawm kev teeb tsa ntawm cov elevators thiab kab rov tav. CMP yog siv rau cov raj cua, chav muaj cua nkag lossis lwm yam huab cua. Hauv kab rov tav xov hluav taws xob nyob hauv qhov chaw ncig.
3. Hloov chaw
Nyob rau hauv qhov xwm txheej zoo li no, CM cable network cable tsis tuaj yeem hloov CMR cable network cable thiab CMP cable network cable, tab sis CMR cable network cable thiab CMP cable network cable tuaj yeem hloov CM cable network cable.
Li cas los xaiv CM / CMR / CMP cable network cable?
Nws tuaj yeem pom los ntawm cov saum toj no uas ntsuas hluav taws kub CMP> CMR> CM. Yog li nws puas yog qhov tsim nyog los xaiv CMP cable hauv kev coj ua?
Tus kwv tij hais lus, CMP kab ke network cable yog qhov kev xaiv zoo. Vim tias CMP cable muaj qhov siab tshaj qhov hluav taws kub thiab kev nyab xeeb, thiab tsim nyog rau txhua yam ntawm cable thiab network cable cov cai, yog tias lub tsev sib tsoo rau hluav taws, qhov pheej hmoo nqus tau cov pa luam yeeb yog qhov tsawg. Txawm li cas los xij, xav txog cov teeb meem them tus nqi, nws tsis tas yuav xaiv CMP cable network cable thaum txuas cov ntaub ntawv chaw, xws li cov kab ke ua haujlwm ntsug. Nyob rau tam sim no, feem ntau cov ntaub ntawv chaw tuaj yeem txuas mus yam tsis muaj cua lim. Yog li no, CMR kab hlau network cable Nws kuj yog qhov kev xaiv zoo.
Cov lus qhia txog kev paub ntsig txog (dab tsi yog PVC, LSZH, OPNR thiab ONFP?)
Qhov saum toj no yog kev qhia txog kev ntsuas hluav taws ntawm qhov cable thiab cov ntaub thaiv txheej sab nrauv. Cov roj carbon fiber txuas ntxiv kuj muaj qhov ntsuas hluav taws tshwj xeeb (OFNP / OFCP / OFNR / OFCR). Piv nrog CMR / CMP tooj liab cable hluav taws kev ntsuas hluav taws, nplaim hluav taws kub qeeb qeeb yog qhov ntau. Ntau ntxiv mus xyuas" Qhov tseem ceeb ntawm fiber ntau cable cable sheath cov khoom siv thiab kev ntsuam xyuas hluav taws thiab yuav ua li cas xaiv" ;.
Sab sheath khoom zoo
PVC (polyvinyl chloride) muaj cov cuab yeej zoo, hluav taws xob muaj hluav taws xob zoo, muaj zog yooj yim, ruaj khov thiab cov nplaim hluav taws zoo, tab sis muaj qhov tsis zoo rau lub teeb thiab cua sov, yog li nws tsim nyog rau sab hauv cov kab hluav taws xob fiber ntau. Cov hnab riam sab nraud.
LSZH (tsis muaj pa taws thiab tsis muaj pa halogen) muaj cov yam ntxwv ntawm kev haus luam yeeb qis, tsis muaj tshuaj lom, tsis muaj corrosion thiab siab nplaim taws. Raws li kev nyab xeeb thiab ib puag ncig cov khoom, LSZH yog qhov kev xaiv zoo rau kev teeb tsa sab hauv / tawm sab nraud; tab sis tus nqi yuav kim dua
Plenum yog ib qho ntawm cov khoom tseem ceeb ntawm OFNR qib kho qhov muag fiber ntau. Nws muaj cov nplaim hluav taws kub sai sai thiab yuav tsis tsim cov roj lom lossis corrosive ntawm qhov kub siab. Cov hluav taws xob fiber ntau ua los ntawm Plenum yog thawj qhov kev xaiv rau xaim nyob rau hauv qhov cua ua pa lossis cua rov ua kom muaj zog ntxiv siv hauv cov khoom siv huab cua.
Riser yog ib qho ntawm cov khoom sib txuam ua ke ntawm OFNR qib optical fiber cable, thiab nws cov nplaim retardant kev ua tau zoo kuj sib xws
Plenum muaj cov khoom uas tsis muaj zog thiab yog cov uas tsis yog-tshuaj lom thiab corrosive roj. Yog li no, OFNR-qib optical fiber cable nrog Riser cov ntaub ntawv feem ntau yog siv hauv cov kab kev sib txuas kab thiab kab rov tav xov network cable.
OFNP / OFCP NEC txheem nplaim nplaim retardant qib (qib pa), qib siab tshaj plaws. Piv txwv tias tus kiv cua siv los yuam kom cov nplaim taws mus tshuab ntawm cov nplaim hluav taws-nplaim hluav taws xob (supercharged) cov roj hmab hluav taws xob, cov nplaim hluav taws xob rau cov xov paj hluav taws xob tua hluav taws yuav tua nws tus kheej tsis pub dhau 5m, thiab cov roj ntsha tsis muaj tshuaj lom thiab tsis xeb yuav yuav. yuav tsum tau tsim.
Qib ntsug theem (qib ntaiv) hauv OFNR / OFCR NEC tus qauv qib thib ob. Ib yam li ntawd, tus kiv cua yog siv los txhawm rau nplaim taws ua kom tawg rau pob zeb ntawm pob tw-qib kho qhov muag fiber ntau. Txawm hais tias cov nplaim hluav taws yuav tua nws tus kheej yog tias nws kis tau li ntawm 5m, nws tsis muaj pa taws lossis muaj cov lus qhia txog kev mob toxicity.