Ib thaj chaw muaj kev puas tsuaj yog txhais tau tias yog peb qhov chaw - qhov chaw nyob qhov twg qhov chaw uas muaj hluav taws kub tuaj yeem xav tias yuav muaj nyob rau ntawm cov zaus xws li yuav tsum tau ceev faj tshwj xeeb rau hom thiab siv cov cuab yeej hluav taws xob lossis lwm qhov chaw taws teeb. Cheeb tsam puas tsuaj yuav raug txheeb xyuas thiab muab faib ua zone 0, zone 1, thiab zone 2. Txheeb xyuas Zone 0, Zone 1, thiab Zone 2 Hazardous Areas
Hauv paus, rau qhov tawg yuav tshwm sim, cov pa taws kub hnyiab lossis tawg, vapors, pos huab lossis plua plav yuav tshwm sim. Tom qab ntawd, theem ntawm kev pheej hmoo ntawm kev tawg yog nyob ntawm qhov zaus thiab lub sijhawm ntawm qhov tshwm sim ntawm qhov chaw tawg. Qhov kev pheej hmoo no yog sawv cev los ntawm kev faib thaj chaw muaj kev phom sij xws li Zone 0, Zone 1 lossis Zone 2 (rau cov pa roj, vapor thiab huab cua huab cua) lossis Zone 21 lossis Zone 22 rau cov huab cua hauv huab cua.
ZONE 0
Explosive cua yogTsis tu ncuatam sim no
Zone 0 yog thaj chaw uas muaj huab cua tawg tsis tu ncua rau lub sijhawm ntev lossis yuav tshwm sim ntau zaus.
ZONE 1
Explosive cua yogFeem ntautam sim no
Zone 1 yog thaj chaw uas muaj huab cua tawg yuav tshwm sim qee zaus hauv kev ua haujlwm ib txwm muaj. Nws tuaj yeem tshwm sim vim yog kev kho, kev ua haujlwm tu, lossis kev xau.
ZONE 2
Cov huab cua tawg tuaj yeem tshwm sim
Thaj Chaw 2 yog qhov chaw uas muaj huab cua tawg tsis zoo yuav tshwm sim hauv kev ua haujlwm ib txwm muaj tab sis, yog tias nws tshwm sim, yuav nyob rau lub sijhawm luv xwb. Cov chaw no tsuas yog muaj kev phom sij thaum muaj xwm txheej lossis qee qhov kev ua haujlwm tsis zoo.
