Ntau qhov hluav taws xob tsawg (ELV) txhais tau tias voltage ntawm 50V lossis tsawg dua (AC RMS), lossis 120V lossis tsawg dua (ripple-free DC). Tsawg voltage (LV) txhais tau tias qhov hluav taws xob ntau dua ELV, tab sis tsis ntau tshaj 1000V (AC RMS) lossis 1500V (ripple-free DC).
Dab tsi yog qhov hluav taws xob qis dua siv rau?
Kev nyab xeeb los ntawm qhov tsis muaj hluav taws xob ntxiv SELV yog siv nyob rau hauv qhov chaw ua haujlwm ntawm cov khoom siv hluav taws xob ua rau muaj kev phom sij loj (cov pas dej da dej, chaw ua si lom zem, thiab lwm yam).
Dab tsi yog qhov ntsuas hluav taws xob qis ntxiv?
Txoj-Low Voltage txhais tau hais tias qhov hluav taws xob ntawm qhov hluav taws xob yog nyob rau hauv ntau qhov tsawg txaus uas nws tsis muaj kev pheej hmoo siab ntawm cov hluav taws xob hluav taws xob siab. … Yog li ntawd, Extra-Low Voltage Systems yog txhua lub tshuab hluav taws xob uas tuaj yeem ua haujlwm ntawm qhov hluav taws xob qis nrog cov qauv ntsuas hluav taws xob raws li saum toj no
ELV hauv Australia yog dab tsi?
ELV - extra low voltage txhais tau tias kev khiav hauj lwm voltage tsis tshaj 50 V a.c. los yog 120 V ripple free d.c., raws li tau hais tseg hauv AS/NZS 3000 Australian/New Zealand Wiring Rules. neeg ua haujlwm. txhais tau hais tias tus neeg ua haujlwm raws li daim ntawv cog lus ntawm kev ua haujlwm lossis. kev kawm.
Dab tsi los ntawm ELV?
Feem ntau nws muaj ntau yam sub-systems xws li:
- Data kis IT Networks; Local Area Networks (LAN) siv Fiber Optic, Copper lossis Wireless.
- Telephone (PABX):Voice & Video Intercom.
- CCTV/IP soj ntsuam.
- Fire Alarm System (Addressable & Conventional System)
- MATV/SMATV/IPTV.
- Sensors.
- Vehicle Access Control.
