Video: Dab tsi yog qhov zoo latching kho vajtse?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
Dab tsi yog qhov zoo - latching , thiab nws puas xav tau rau txhua lub qhov rooj hluav taws? Kho vajtse ntawm lub qhov rooj sib dhos hluav taws yuav tsum muaj lub latchbolt kom tiv thaiv kev kub ntxhov los ntawm qhov hluav taws kub los ntawm kev thawb lub qhov rooj qhib thiab tso pa taws thiab nplaim taws kom kis mus.
Ib yam li ntawd, tib neeg nug, qhov zoo latching txhais li cas?
Feem ntau qhov no txhais tau tias tias txhua qhov hluav taws kub qhov rooj yuav tsum tau nruab nrog lub active latchbolt, yog li thaum lub qhov rooj los ze, nws yuav latch . Lub latchbolt ntawm lub xauv lossis hluav taws tawm ntawm cov khoom siv yuav muab qhov no zoo latch.
Tsis tas li ntawd, puas muaj qhov rooj pa luam yeeb? Cov qhov rooj haus luam yeeb ua tsis muaj mus zoo latch . Yog ib pa luam yeeb qhov rooj muaj zoo latching kho vajtse txawm tias tsis yuav tsum tau - nws yuav tsum tau khaws cia.
Qhov thib ob, qhov latch pov tseg yog dab tsi?
Txhawm rau kom lub qhov rooj sib tua hluav taws ua tau raws li tsim thiab ntsuas, nws yog qhov tseem ceeb rau lub qhov rooj raug kaw thiab latched yog/thaum muaj hluav taws kub. Latch Pov - Kev hloov kho tsis ntev los no ntawm NFPA 80 tsis tau hais qhia qhov xav tau ntxiv lawm latch pov - qhov kev ncua deb uas latch yuav tsum ua haujlwm los ntawm ntug qhov rooj.
Qhov ntsuas qhov rooj yuav tsum tau ua li cas rau 1 teev phab ntsa?
1 hnu 1 /3 Teev (20 feeb) Cov kev qhib no yog nyob rau hauv txoj kev hauv tsev uas muaj pa luam yeeb thiab cua ntsawj ntshab tswj yuav tsum tau . Yam tsawg kawg nkaus phab ntsa ntsuam xyuas yog 1 teev . Ib - teev teev qhov rooj yog siv rau hauv phab ntsa nruab nrab ntawm chav, uas yog ib txwm ib - teev rated . Qhov rooj nrog 3/4- teev tiv thaiv hluav taws kev ntaus nqi yog siv hauv ib - teev phab ntsa.
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