Ukusetshenziswa kwezinto zikagesi ezinganakekelwa kahle noma eziphelelwe yisikhathi ezindaweni eziyingozi kubeka abasebenzi nezivakashi engcupheni yokushaqeka kagesi, ikakhulukazi uma bethintana ngqo nomhlabathi.
Thembela kuma-RCD ukuze uthole ukuvikeleka okwengeziwe kumaphutha.Ama-switchboard amaningi akhona afakwe ezindaweni zokwakha e-UK aqukethe ama-AC RCDs.
Ama-AC RCD awafanele ukusetshenziswa nezinto eziningi zesimanje zikagesi namathuluzi asetshenziswa ezindaweni zokwakha, ngaphandle kokushisa okusekelwe ukumelana nemithwalo yokukhanyisa - bona BS7671 Amendment 2.
Izidingo ezijwayelekile zale nqubo zinikezwa engxenyeni eyinhloko yenqubo yokuvala amandla okuzenzakalelayo.Isichibiyelo sesi-2 ekupheleni kwe-§ 531.3.3 sithi: “Uhlobo lwe-AC ye-RCD* luzosetshenziswa kuphela ekufakweni okungaguquki okunomthamo wamanzi owaziwayo ongaqukethe ingxenye ye-DC.”
Ukufaneleka kwamadivayisi okuqapha nokulawula axhunywe kugesi wasensimini, ikakhulukazi ama-plug-in, kuyinkinga enkulu yezempilo nokuphepha.Izingozi ezihlobene nokuxhumanisa okokusebenza kwezigaba ezintathu kumthombo wamandla okhona ovikelwe uhlobo olungalungile lwe-RCD yingozi engaba khona kuwo wonke amasayithi e-UK.Lokhu kuqashelwe futhi kuvunyelwe ku-HD 60364-7-704 2018 Isithasiselo ZB: Ezizindeni zaseJalimane zokwakha nokubhidliza / Wonke amasokhethi ezigaba ezintathu ezifika ku-63 A kufanele avikelwe ngohlobo B RCDS.
Ukufakwa kwesikhashana: Noma iziphi izinto ezisetshenziswayo ezivalwayo futhi zithuthelwe endaweni entsha yesayithi noma ezithunyelwe ukuze zilungiswe/zilungiswe zizothobelana nezidingo zakamuva zokuphepha, okungukuthi ezithathwa njengeziwukufakwa okusha futhi zithobelane nezidingo zamanje zokulawula.
Ukuxhuma imishini emisha: Iziqondiso zezempilo nokuphepha (bheka ngezansi) zigcizelela isidingo sabasebenzi abanekhono ukuze baqinisekise ukuthi ukuphakelwa kukagesi kanye nezisetshenziswa zokuvikela zilungele okokusebenza okuxhunyiwe, isibonelo, uhlobo lwe-RCD kufanele lufanele okokusebenza okuxhunyiwe/ ithuluzi.– bheka i-BS 7671 531.3.3
* Incazelo esemthethweni: “Uzokwenza” kusho ukuthi umuntu unesibopho noma umsebenzi wokwenza isenzo.
Isiqondiso esinikezwe ku-HSE Guidance Document kanye ne-BS7671 sisekela ukuthotyelwa kwezidingo zoMthetho Wezempilo Nokuphepha wase-UK.
Ama-RCD akhethwe kahle ahlinzeka ngokuvikeleka kwamaphutha kanye nesivikelo esengeziwe - bheka Izidingo Zokuhlola Ubungozi: Imanuwali ye-HSE Ukusebenza Kwezisetshenziswa zikagesi. Isiqondiso (I-Ident 4 & 5) sithi ngaphambi kokuxhuma izinto zokusebenza, “umuntu onekhono” kufanele ahlole ukunikezwa. Isiqondiso (I-Ident 4 & 5) sithi ngaphambi kokuxhuma izinto zokusebenza, “umuntu onekhono” kufanele ahlole ukunikezwa.Imanuwali (izigaba 4 no-5) ithi “umuntu onekhono” kufanele ahlole ukunikezwa kukagesi ngaphambi kokuxhuma izinto zokusebenza.Iziqondiso (ezihlehliswe ku-4 no-5) zithi “umuntu oqeqeshiwe” kufanele ahlole amandla ngaphambi kokuxhuma idivayisi.Lokhu kuhlanganisa ukufaneleka nokusebenza kwawo wonke amadivaysi okuvikela e-RCD afakwe ngokuhambisana namathuluzi.
Imithwalo yezigaba ezintathu ehlanganisa ama-inverter (isb. amaphampu, ama-compressor, ama-seal, ama-welders, njll.) akhiqiza imvamisa ephezulu kanye nama-DC abushelelezi avuzayo aphazamisa ama-RCD ajwayelekile.Umthetho 531.3.3(iv) udinga ukusetshenziswa kohlobo B RCDs ukunikeza izinga elidingekayo lokuvikela lalezi zinhlobo zemithwalo.
“Kumele uthathe izinyathelo zokuphepha engozini yokufa noma yokulimala ngenxa kagesi.Izinto zikagesi kumele ziphephe futhi zigcinwe ngendlela efanele.”I-HSE igcizelela ukubaluleka Kogesi Emithethweni Yendawo Yokusebenzela 1989 kanye nesiqondiso esisekelayo ukuze kuncishiswe/kuqedwe ubungozi obuhlobene nezinto zokusebenza eziklanywe ngendlela engafanele neziklanywe ngendlela engafanele, ezisetshenziswa ngokungafanele nezinakekelwa.Ugesi Endaweni Yokusebenza yeMithetho ka-1989, uMthetho 4-(1) “Zonke izinhlelo zizokwakhiwa ngaso sonke isikhathi ukuze kunqandwe izingozi ngendlela engenzeka.”Imanuwali ye-HSE efanele (HSR25) ibeka izimfuneko eziphathelene: nomklamo (isigaba 62), izimo ezibonwayo kanye nokusetshenziswa (isigaba 63), izici zomkhiqizi, izinto zokuzivikela ezisebenza ngogesi ezifanele… (isigaba 64)), kanye “nokuphepha kwezisetshenziswa” .uhlelo luncike ekukhethweni okufanele kwazo zonke izinto ezisebenza ngogesi.Uhlelo”.. (ikhasi 65)
Okusho ukuthi, i-RCD inikeza ukuvikelwa, ngakho-ke, lapho ukhetha uhlobo lwe-RCD, kuyadingeka ukucabangela izidingo nezincomo ezinikezwe ku-BS 7671 531.3.3, ngokusekelwe kububanzi bemishini engaxhunywa ngemva kwe-RCD evikelwe. indawo yokuphuma.
Ama-RCD nama-RCD afanele ukuvikelwa kokugcina kwesekethe/izisekelo: izilinganiso zawo ezigxilile zifaneleka ngokukhethekile ukuvikela u-30 mA ekulungisweni okungagunyaziwe ngabasebenzi abangaqeqeshiwe (abasebenza ngogesi) - bheka i-BS 7671 531.3.4.1 I-CBR ne-MRCD inezilinganiso ezilungisekayo, ezingasetshenzwa/uchwepheshe njengoba kuyaliwe - bheka isigatshana 531.3.4.2 se-BS7671.
QAPHELA.Ama-MRCD asetshenziswa namadivayisi azimele angaphumeleli futhi ngenxa yalokho kufanele aqinisekiswe ngemva kokuhlanganiswa nokuxhumeka kwe-OEM (BSEN60947-2 Annex M).Lokhu kwenzelwa ukuhlola isikhathi esiphelele sokunqanyulwa kwayo yonke i-MRCD + MCB + S/Trip noma i-U/Release yomhlangano njengengxenye yokuhlolwa kokugcina komhlangano:
Njengoba kunikezwe izimo ezinzima zezindawo zokwakha kanye nezingozi ezinkulu zokusebenzisa imishini kagesi ngaphandle, imithetho ilula: izinto zokusebenza kufanele zilungele ukusetshenziswa, zigcinwe zilungiswe kahle futhi ziphephe ukusetshenziswa.Lokhu kuhlanganisa ukukhetha uhlobo olulungile lwe-RCD, ukuvikela ngokufanelekile okokusebenza njengama-RCD endaweni ezungezile, nokuyigcina isesimweni esihle sokusebenza.Hlola ngezikhathi ezithile futhi uhlole ukuze uqinisekise ukuthi i-RCD inikeza izinga elidingekayo lokuvikela futhi ilungele okokusebenza okuxhunyiwe.Ngaphambi kokuxhuma imishini emisha ebhodini lokushintsha elikhona - imithetho ye-HSE idinga "umuntu oqeqeshiwe" ukuthi ahlole ukunikezwa kwamandla ukuze aqinisekise ukuthi kuphephile ukusetshenziswa nempahla.
Isikhathi sokuthumela: Aug-16-2022