chii chinonzi circuit breaker lockout

Amudziyo wekuvharira kunze kwecircuit breakermudziyo wekuchengetedza unoshandiswa kudzivirira simba redunhu netsaona panguva yekugadzirisa kana kugadzirisa. Chikamu chakakosha chekuchengetedza magetsi munzvimbo dzemaindasitiri, dzemabhizinesi nedzekugara. Chinangwa chekuvharirwa kwenzvimbo yekupwanya dunhundeyekuona kuti michina yemagetsi inoramba isina simba panguva yekugadzirisa kana kugadzirisa, nokudaro ichidzivirira vashandi kubva panjodzi yekubatwa nemagetsi kana dzimwe njodzi dzemagetsi.

Mudziyo wekukiya kunze unowanzova chishandiso chidiki, chinotakurika chinogona kubatanidzwa nyore nyore necircuit breaker kuti chisavhurike. Chakagadzirwa kuti chisimbiswe zvakachengeteka paswitch yecircuit breaker, zvichidzivirira kuti chisashande. Izvi zvinonyatso vhara circuit breaker panzvimbo isina kushanda, zvichiita kuti circuit irambe isina simba kusvika locked device yabviswa.

Kune mhando dzakasiyana dzekuvharirwa kwenzvimbo dzecircuit breakeriripo, imwe neimwe yakagadzirirwa rudzi rwakasiyana rwecircuit breaker nemidziyo yemagetsi. Mimwe midziyo yekukiya yakagadzirirwa kuiswa pa switch yecircuit breaker yakajairika, nepo mimwe midziyo yekukiya yakagadzirirwa kushandiswa nema molded case circuit breaker kana mimwe midziyo yemagetsi yakasarudzika. Pamusoro pezvo, kune midziyo yekukiya inokwana macircuit breaker akawanda, zvichibvumira macircuit akawanda kuvharirwa panguva imwe chete.

Maitiro ekushandisa akuvharirwa kwenzvimbo yekupwanya dunhuZvinosanganisira matanho akati wandei akakosha ekuona kuti zvinoitwa nemazvo. Chekutanga, vashandi vane mvumo vanofanira kuziva chinovhara dunhu chinofanira kuvharirwa kunze. Kana chinovhara dunhu chawanikwa, mudziyo unokiya unobatanidzwa zvakanaka paswitch, zvichiita kuti chisavhurike. Zvakakosha kuve nechokwadi chekuti mudziyo unokiya wakaiswa nemazvo uye haugone kubviswa kana kukanganiswa zviri nyore.

Pamusoro pemidziyo yekuvharira vanhu,kuvharirwa/kuburitswaMaitiro acho anofanira kushandiswa kuratidza zvakajeka kuti circuit breaker yakavharwa uye haifanirwe kuwedzerwa simba. Izvi zvinowanzo sanganisira kuisa tag yekuvharira pamudziyo wakakiyiwa inoratidza chikonzero chekuvharira, zuva nenguva yekuvharira, uye zita remunhu ane mvumo akaita lockout. Izvi zvinobatsira kuzivisa vamwe vashandi nezvemamiriro e locked circuit breaker uye kudzivirira kuedza kusina mvumo kufambisa simba pacircuit.

Kushandiswa kwekuvharirwa kwenzvimbo dzecircuit breakerinotongwa nemitemo yekuchengetedzwa, yakaita seyakarongwa neUS Occupational Safety and Health Administration (OSHA). Mitemo iyi inoda kuti vashandirwi vashandise nzira dzekuvharira/kuburitsa michina kuti vadzivirire vashandi kubva mukusashanda kwemuchina kana michina panguva yekugadzirisa kana kugadzirisa. Kukundikana kutevedzera mitemo iyi kunogona kukonzera chirango chakakomba uye faindi kune vashandirwi.

Mukupedzisa,kuvharirwa kwenzvimbo yekupwanya dunhuinzira yakakosha yekuchengetedza inobatsira kudzivirira vashandi kubva kunjodzi dzemagetsi panguva yekugadzirisa nekugadzirisa. Nekukiya macircuit zvinobudirira, zvishandiso izvi zvinodzivirira simba netsaona uye zvinoderedza njodzi yekuvhunduka kwemagetsi nezvimwe kukuvara. Vashandirwi nevashandi vanofanirwa kuziva kukosha kwekushandisa zvishandiso zvekuvharira macircuit breaker vachitevedzera mitemo yekuchengetedza kuti pave nenzvimbo yakachengeteka yekushanda.