M'malo opangira mafakitale, chitetezo cha kukonza zida zamagetsi ndi kusamalira makina ogawa magetsi ndiye zinthu zofunika kwambiri pakupanga chitetezo m'mabizinesi.LOTO (Lockout/Tagout)Dongosololi, lomwe limaphatikizapo kutseka ndi kuyika ma tagi kuti aletse mphamvu zamagetsi zoopsa ndikuletsa kugwiritsa ntchito molakwika ma circuit breaker, ndiye "njira yofunika kwambiri yodzitetezera" poteteza chitetezo cha ogwira ntchito komanso kupewa kuzima kwa magetsi. Malinga ndi deta, ngozi zopitilira theka zokonza magetsi zimagwirizana ndi kusowa kapena kusagwiritsidwa ntchito bwino kwa njira ya LOTO. Pakati pawo, ngozi zomwe zimachitika chifukwa cha kugwiritsa ntchito molakwika ma circuit breaker, monga kugwedezeka kwamagetsi, ma short circuit, komanso moto, zimakhala ndi gawo lalikulu. Chotsekera ma circuit breaker, monga chipangizo chachikulu chotsekera chomwe chimasiyanitsa gwero lamagetsi mu njira ya LOTO, chimagwirizana mwachindunji ndi kusankha koyenera ndi kugwiritsa ntchito mitundu yosiyanasiyana ya ma circuit breaker ndipo ndi chinthu chofunikira chomwe akatswiri achitetezo m'mafakitale ndi ogwira ntchito zamagetsi ayenera kudziwa. Nkhaniyi ipereka kusanthula mwatsatanetsatane ndi kuyambitsa mitundu yosiyanasiyana ya ma circuit breaker kuchokera ku LOTO, komanso njira zotsekera, ndikuyankha mafunso wamba amakampani kuti athandize mabizinesi kukhazikitsa njira ya LOTO ndikulimbitsa mzere woteteza chitetezo chamagetsi m'mafakitale.
Pansipa, ndisanthula, kuyambitsa, ndikupereka njira zotsekera mitundu yosiyanasiyana ya ma circuit breaker kuchokera ku lingaliro la akatswiri a LOTO.
I. Zothyola Ma Circuit Ang'onoang'ono
Zipangizo zamagetsi zazing'ono zotsekereza magetsi ndi zida zamagetsi zofunika kwambiri zotetezera magetsi m'mafakitale ogawa magetsi. Zimagwiritsidwa ntchito makamaka poteteza magetsi ambiri komanso mafupipafupi, zomwe zimakhala ndi kukula kochepa, mphamvu yocheperako yosweka, komanso kugwiritsa ntchito mosavuta. Ndizigawo zazikulu zogawa magetsi m'mafakitale ogwirira ntchito, mabokosi ogawa magetsi, ndi zida zazing'ono. Mu ntchito za LOTO, zotsekereza zamagetsi zazing'ono zimakhala ngati mfundo yofunikira yolekanitsira mphamvu zamagetsi kutsogolo. Ngati sizikutsekedwa motsatira malamulo, zimatha kupangitsa kuti zida zokonzera magetsi zigwire ntchito mwadzidzidzi chifukwa chakuti ogwira ntchito atseka chotsekereza magetsi molakwika, zomwe zimapangitsa ngozi monga kugwedezeka kwa magetsi, kuwonongeka kwa zida, ndi zina zotero. Chifukwa chake, kutseka kuyenera kuchitika kudzera m'maloko apadera kuti akwaniritse zofunikira za LOTO zolekanitsa mphamvu.
Mitundu yodziwika bwino ya ma small circuit breakers:
⑴. Zapakhomo: CHINT, DELIXI, ANTHU, TENGEN, Nader, ndi zina zotero. ⑵. Zakunja: Schneider Electric, ABB, Siemens, Eaton, Legrand, ndi zina zotero.
a. Zochitika pakugwiritsa ntchito:
⑴. Chitetezo cha mzere ndi kudzipatula kwa mphamvu m'mabokosi ang'onoang'ono ogawa ndi mabokosi owongolera zida m'mafakitale opangira zinthu;
⑵. Kusamalira makina ogawa magetsi otsika mphamvu m'maofesi ndi m'malo othandizira mafakitale;
⑶. Kusamalira mabwalo ang'onoang'ono a nthambi ndi mabwalo operekera magetsi kuti azigwiritsidwa ntchito molondola m'mizere yopangira yokha.
II. Chosweka Mlandu Wopangidwa ndi Chingwe
Chotsekera ma circuit cha case chopangidwa ndi under-voltage chili ndi ntchito monga overload, short circuit, ndi under-voltage protection. Chili ndi mphamvu yolimba yothyoka komanso mphamvu zambiri zogwiritsira ntchito magetsi. Chotchingiracho chimapangidwa ndi pulasitiki yotetezera kutentha, zomwe zimatha kupewa kufalikira kwa arc. Ndi gawo lofunika kwambiri la dongosolo logawa mphamvu m'mafakitale ndipo chimagwiritsidwa ntchito kwambiri poteteza ndi kuwongolera zida zamagetsi amphamvu, kugawa mphamvu zazikulu m'malo ogwirira ntchito, ndi mizere ya trunk yogawa mphamvu.
Monga malo ofunikira olekanitsira mphamvu zamagetsi m'mafakitale, chotsukira ma case circuit chopangidwa chimalumikiza gwero lamagetsi la zida zamagetsi amphamvu kwambiri. Kugwiritsa ntchito molakwika kutseka switch kumabweretsa kutulutsa kwakukulu kwa mphamvu zamagetsi, zomwe zimapangitsa kuvulala kwakukulu kwa munthu komanso kuwonongeka kwa zida. Chifukwa chake, panthawi ya ntchito za LOTO, ndikofunikira kupeza loko yotetezeka kudzera m'maloko olemera odzipereka ndikuphatikiza zoteteza zingapo kuti zitsimikizire kudzipatula kwamphamvu kwa mphamvu.
III. Chothyola Chigawo cha Chimango
Chotsekera mafelemu, chomwe chimadziwikanso kuti chotsekera mafelemu onse, chili ndi mphamvu yayikulu yowunikira, mphamvu yosokoneza kwambiri, komanso ntchito zoteteza zonse. Chingagwiritsidwe ntchito pamagetsi komanso pamanja ndipo chimagwiritsidwa ntchito kwambiri ngati chosinthira chachikulu mu dongosolo logawa mphamvu zamabizinesi amafakitale. Ndi gawo lolamulira ndi kuteteza la netiweki yonse yogawa mphamvu zamafakitale. Chotsekera mafelemu chimayang'anira gwero la mphamvu zamagetsi la malo onse ogwirira ntchito kapena fakitale. Ntchito ya LOTO (Lockout-Tagout) pa LOTO panel ndiyo yofunika kwambiri pachitetezo chamagetsi chamafakitale. Ngati sichigwiritsidwa ntchito molakwika, chingayambitse kuzimitsa magetsi kwakukulu, kuwonongeka kwa magulu a zida, kapena ngozi zazikulu zachitetezo chaumwini. Chifukwa chake, ndikofunikira kutsatira mosamalitsa njira yonse ya LOTO ndikugwiritsa ntchito maloko amphamvu kwambiri kuti mukwaniritse kudzipatula kwina kulikonse, ndikukhazikitsa mfundo yayikulu ya "amene amatseka, amene amatsegula".
a. Zochitika zogwiritsira ntchito
⑴. Chosinthira chachikulu cha mphamvu yolekanitsa m'chipinda chachikulu chogawa mafakitale ndi mapaki akuluakulu a mafakitale;
⑵. Kukonza makina ogawa magetsi m'mabizinesi akuluakulu monga mafakitale a zitsulo, magetsi, ndi mankhwala;
⑶. Ma switch akuluakulu owongolera kugawa kwa mizere yayikulu yopanga yokha komanso mafakitale anzeru pantchito za LOTO.
Nthawi yotumizira: Mar-17-2026
