Cat6 Plenum Cable: Kev Ntsuas Hluav Taws Xob, CMP vs CMR sib piv

Cov nqi rov ua dua tau khiav peb mus rau tsib npaug ntawm cov peev txheej qub thaum qhov kev tshuaj ntsuam tsis ua tiav. Teem sijhawm ncua yog qhov kim. Lub cable nws tus kheej yog tus lej tsawg tshaj plaws ntawm daim ntawv them nqi ntawd. NEC Tshooj 800 kho CMP thiab CMR ua binary classifications. Lub tsho cable yog cim kom raug rau qhov chaw, lossis kev teeb tsa tsis tiav (nfpa.org).

 

Peb muabCat6 plenum thiab riser cablelos ntawm peb lub chaw Shenzhen mus rau cov haujlwm thoob plaws North America, Europe, thiab Asia. Dab tsi peb tau kawm los ntawm kev txhawb nqa cov kev teeb tsa no: kev ua raws li kev ua tsis tiav yuav luag tsis tuaj ntawm cov khoom tsis raug. Lawv los ntawm kev txiav txim siab ntawm kev yuav khoom uas tsis muaj cov ntaub ntawv txheeb xyuas qhov tseeb.

CMP vs CMR: Dab tsi txiav txim siab qhov yuav tsum tau ua

CMP (Kev Sib Txuas Lus Multipurpose Plenum) cables dhau UL 910 kuaj nrog 300,000 BTU / teev nplaim taws hauv 25-ko taw Steiner qhov hauv qab yuam cua ncig. CMR (Kev sib txuas lus Multipurpose Riser) cables dhau UL 1666 ntsug nplaim hluav taws. Qhov kev ntsuam xyuas koj xav tau yog nyob ntawm qhov twg cov cable khiav.

CMP cable yuav tsum tau nyob qhov twg HVAC huab cua ncig los ntawm qhov chaw uas muaj koj cov cables. Hauv kev xyaum, txoj cai ntawd ua rau muaj kev tsis meej pem ntau dua li nws daws tau.

Feem ntau cov lag luam poob qab nthab tsis tsim nyog raws li "plenum qhov chaw" raws li NEC cov ntsiab lus nruj, tab sis lawv feem ntau poob rau hauv "lwm qhov chaw siv rau ib puag ncig huab cua," uas yog cov kev cai CMP zoo ib yam. Qhov sib txawv tsis tshwm sim ntawm ib daim ntawv qhia cable. Xyoo tas los, 180-poob chaw ua haujlwm kho dua tshiab hauv Texas tuaj rau peb nrog CMR twb nyob rau hauv daim ntawv xaj. Cov duab kos hauv tsev tau pom tus qauv poob qab nthab, tab sis HVAC raws li tsim tau qhia lub qab nthab kab noj hniav tau ua txoj hauv kev rov qab los. Peb tau cim nws ntawm kev hais tawm, cov spec hloov mus rau CMP, thiab qhov project tau dhau los soj ntsuam ntawm thawj qhov kev taug kev. Qhov ntawd yog hom kev kuaj peb khiav ua ntej lees paub qhov kev txiav txim ntau.

Thaum CMR ua haujlwm

CMR cable ua haujlwm ntsug risers: of elevator shafts, cable chases, conduit khiav ntawm chav telecom. Qhov ntsuas UL 1666 tsom rau cov nplaim hluav taws xob ntsug, uas yog qhov teeb meem tseem ceeb hauv txoj hauv kev no.

 

Cov khoom siv tus nqi sib txawv yog tiag tiag.Cat6 CMRkhiav roughly 30-40% tsawg dua qhov sib npaug CMP ntawm cov khoom lag luam wholesale. Rau 200-poob chaw ua haujlwm tsim tawm nruab nrab ntawm 75 ko taw ib qho kev khiav, qhov ntawd yog $ 1,000 txog $ 1,500 hauv kev txuag nyiaj ua ntej koj kov lub zog.

 

Qhov ntsuas qhov hnyav: CMP- ntsuas cable tuaj yeem hloov pauv rau CMR hauv txhua daim ntawv thov, tab sis qhov thim rov qab tsis muaj tseeb. Ntawm kev sib xyaw- qhov chaw ua haujlwm, kev ua qauv ntawm CMP tshem tawm kev txheeb xyuas, sau npe, thiab txoj hauv kev- taug qab cov nyiaj siv ua haujlwm. Peb tau pom cov lus nug yooj yim them rau cov khoom siv hwm ntawm cov haujlwm tshaj 150 tee. Rau kev txiav txim siab tshaj 50 lub thawv, peb cov nqi sib tw kaw qhov sib txawv ntxiv. Thov ib daim ntawv tsocai nrog koj qhov chaw sib xyaw thiab peb mam li suav ob qhov xwm txheej.

 

Peb lub sij hawm ua tus qauv yog 5-7 hnub ua haujlwm raubulk plenum cable xaj. 72- teev qhia yog muaj yog tias koj qhov project ncua sij hawm xav tau nws.

PoE Compatibility

Cat6 plenum kabtxhawb nqa tag nrho cov tam sim no Fais fab hla Ethernet qauv los ntawm IEEE 802.3bt Hom 4 ntawm 100 watts. Qhov kev txwv tsis yog qhov kev ntaus nqi plenum. Nws yog conductor gauge thiab bundle ceev.

Cat6 feem ntau siv 23 AWG tooj liab, uas ua haujlwm PoE++ nyob rau hauv 100-meter channel txwv. Saib rau 24 AWG cables marketed li Cat6; lawv ua tau raws li kev sib kis specs tab sis tsim ntsuas kub ntau dua nyob rau hauv kev txhawb nqa high-wattage loads.

Bundle ceev dhau los ua qhov txwv ntawm siab - lub zog xa tawm. TIA TSB-184-A pom zoo kom txwv qhov ntau thiab tsawg thaum khiav PoE saum 30 watts. 48-chaw nres nkoj PoE++ hloov cov khoom nkag nkag ntawm lub zog tag nrho thawb 4,800 watts los ntawm ib txoj hauv kev. Ntawm peb cov ntaub ntawv chaw ua haujlwm, peb tau spec'd sib cais ntawm 24 cables siab tshaj plaws rau PoE++ khiav tshaj 50 meters.

CCA: Kev Muag Khoom -Level Problem

Copper-clad aluminium tshwm nyob rau hauv cov npe uas pheej yig Cat6 cov npe, feem ntau raug nqi 30-50% hauv qab cov khoom siv tooj liab raug cai. Nws raug txwv nyob rau hauv NEC rau thaj chaw sib txuas lus, tsis ua tiav TIA cov lus qhia tshwj xeeb, thiab tsim cov hom tsis ua haujlwm uas lub hlis tom qab kev teeb tsa (truecable.com).

CCA muaj 55% DC siab dua li tooj liab. Nyob rau hauv PoE loads, qhov tsis kam hloov mus rau cua sov. Fluke DSX-8000 kev ntsuam xyuas ntawm cov ntaub ntawv CCA cov qauv qhia DC tsis kam nyeem ntawv ntawm 31 ohms tawm tsam 21-ohm txwv. Qhov ntawd yog qhov tsis siv neeg channel tsis ua haujlwm.

Kev tshawb xyuas teb muaj nyob: qhov sib piv hnyav, cov cim lub tsho, kev tshuaj xyuas tus neeg xyuas pib. Tab sis cov no yog cov txheej txheem pov thawj rau kev txais pab pawg, tsis yog kev tiv thaiv kev yuav khoom. Kev yuav khoom - theem kev daws teeb meem yog tus neeg tsim khoom tsim nyog. Peb qhov tshwj xeeb los ntawm cov tuam ntxhab nrog cov ntawv pov thawj UL / ETL thiab cov saw hlau ntau lawm. Txhua qhov khoom xa tuaj suav nrog cov ntaub ntawv pov thawj traceable. Thaum ib qho kev tsocai los ntawm lwm tus neeg muag khoom zoo li 35% pheej yig dua li peb, feem ntau peb tuaj yeem piav qhia raws nraim qhov uas ploj lawm.

Hom Positioning

Belden, CommScope, thiab Panduit tshwm sim ntawm feem ntau cov ntaub ntawv qhia txog kev lag luam. Lawv cov kev pab cuam warranty, cov ntaub ntawv qhov tob, thiab cov ntawv pov thawj channel muaj qhov hnyav hauv kev ua raws li - ib puag ncig rhiab heev.

Peb tsis yog cov hom no. Peb yog cov chaw tsim khoom hauv Shenzhen uas nws pab pawg ua haujlwm ua haujlwm txhua qhov kev txiav txim ntau dhau los ntawm UL daim ntawv pov thawj ua ntej pib tsim khoom. Cov kauj ruam ntawd ua rau qhov tsis sib haum xeeb, cov ntaub ntawv sib txawv, thiab kev ua raws li cov xwm txheej ua ntej lawv dhau los ua teeb meem hauv chaw ua haujlwm. Peb qhov kev pom zoo muaj nuj nqis yog lub Hoobkas- tus nqi ncaj qha ntawm cable uas ua tau raws li qhov kev ua tau zoo ib yam, nrog rau cov ntaub ntawv cov ntaub ntawv uas ua tau raws li qhov xav tau ntawm kev soj ntsuam tib yam.

Rau tej yaam num uas spec mandates lub npe npe, peb tsis yog koj tus neeg muag khoom. Rau cov pab pawg muag khoom tau soj ntsuam ntawm tag nrho cov nqi ntawm qhov project thiab thawj zaug - dhau qhov kev tshuaj ntsuam xyuas, peb xa ntawm 20-35% hauv qab cov npe hloov pauv yam tsis muaj kev cuam tshuam rau txoj kev ua raws li daim ntawv.

MOQ yog ib qho. Peb tsis nplua cov xaj me me, thiab peb tsis tas yuav tsum tau cog lus ua ntej koj tau sim cov khoom.

Cov ntaub ntawv soj ntsuam

Cov neeg soj ntsuam hauv tsev tshawb xyuas cov kab cim kab cim tiv thaiv qhov chaw teeb tsa. Txhua ko taw ntawm cov kab txuas txuas yuav tsum qhia cov chaw tsim khoom, kev tsim CMP lossis CMR, thiab thib peb - cov cim npe. Cov ntawv luam tawm tsis muaj cim lossis tsis raug cai tau txais chij tsis hais txog qhov ua tau zoo (ecmweb.com).

 

Kev tua hluav taws ntawm kev nkag mus tau txais kev tshuaj xyuas sib npaug. NEC 300.21 yuav tsum tau kaw qhov nkag los ntawm hluav taws- ntsuas cov rooj sib txoos. Kev ntsuam xyuas cable thiab txoj hauv kev tua hluav taws yog cov khoom sib cais.

 

Peb xa cov ntaub ntawv cov ntaub ntawv nrog txhua qhov kev txiav txim ntau: UL daim ntawv pov thawj, cov ntaub ntawv xeem, thiab cov ntaub ntawv pov thawj ua raws. Yog tias tus neeg soj ntsuam thov cov ntaub ntawv ntxiv ntawm qhov chaw, peb teb tsis pub dhau 48 teev. Yog tias qhov teeb meem batch ntog tom qab- kev teeb tsa, peb muaj cov ntaub ntawv hloov raws tu qauv nrog cov lus teb cov lus teb. Nug peb txog nws ua ntej koj xaj.

Kauj ruam tom ntej

Xa peb koj qhov project footage thiab hnub kawg. Peb yuav rov qab los nrog tus nqi, lub sijhawm ua haujlwm, thiab cov lus nug tshwj xeeb uas peb xav tau teb. Koj tsis tas yuav npaj daim ntawv teev npe ua ntej.

Tsis xav tau kev cog lus. Tau cov lej, tom qab ntawd txiav txim siab.