Uthini Umahluko phakathi kweeBhokisi zoBungqina bokuFinyelela nokuNyuswa koKhuseleko

Iintlobo zobungqina bokuqhuma:

Iindlela zobungqina bokudubula bokwanda kokhuseleko (Ex kunye) kunye nelangatye (Ex d) iindawo ezibiyelweyo zohluka kakhulu.

Uhlobo lwe-Flameproof:

Indlela yokukhusela amadangatye ibandakanya iindawo ezivalelekileyo ezinokuvelisa ii-arcs okanye iintlantsi ngexesha lokusebenza okuqhelekileyo ngaphakathi kwendawo ebiyelweyo eyomeleleyo.. Le ndawo ebiyelweyo imelana noxinzelelo lokudubula ngaphandle komonakalo, ukuqinisekisa ukuba amadangatye kunye nobushushu obuphezulu obunobungozi obuveliswa kugqabhuko-dubulo ngaphakathi akudluliseli ngaphandle. Iqinisekisa ukuba ezi ziyacinywa kwaye zipholile xa zidlula kwijoyinti elingatshiyo, ukuthintela ukuvutha qhuma iigesi ngaphandle kwendawo ebiyelweyo.

Uhlobo loKhuseleko olongezelelweyo:

Kwi ukwanda kokhuseleko (Ex kunye) iindawo ezivaliweyo, akukho mveliso ye-sparking okanye ubushushu obuphezulu obunobungozi ngexesha lokusebenza okuqhelekileyo. Amanyathelo awongezelelweyo athathiwe ukuqinisa ukhuseleko kunye nokuthembeka.

Izikrufu:

Kutheni kukho izikrufu ezininzi kangaka ingatshi iindawo ezivaliweyo, kodwa hayi kwiintlobo zokhuseleko olwandisiweyo?

Iindawo ezivaliweyo ezingenamlilo zifuna inqanaba eliphezulu lokuchaneka ekunyamezeleni isithuba sokuthintela ukuqhuma kwangaphakathi ekutshiseni iigesi eziqhumayo zangaphandle.. Izikrufu ezongezelelekileyo ziqinisekisa i-seams eqinile kunye nokhuseleko olukhulu. Yiyo loo nto iindawo ezivaliweyo ezingatshiyo zinezikrufu ezininzi.

Ukunyuka kokhuseleko kugxininisa kwinqanaba lokukhusela. Ukutywinwa ngokufanelekileyo ngezikrufu ezine nje kwanele.

Amacandelo:

Izivalo ze-flameproof azithinteli malunga nezinto zangaphakathi kuba zinokumelana nazo naziphi na ii-arcs okanye iintlantsi ngaphakathi.. Logama nje iqokobhe langaphandle linokumelana noxinzelelo loqhushumbo ngaphandle komonakalo, iqinisekisa ukuba amadangatye kunye namaqondo obushushu aphezulu avelisiweyo ngaphakathi ayacinywa kwaye ayapholiswa xa udlula kwijoyinti elingatshiyo., ukuthintela ukuvutha kwangaphandle.

Ukwandiswa kweendawo ezivaliweyo zokhuseleko kufuneka kuqala kuqinisekiswe ukuba izixhobo zangaphakathi azivelisi iintlantsi, amaqondo obushushu aphezulu ayingozi, okanye arcs. Amanyathelo okhuseleko angaphezulu ke athatyathwa ukuqinisa ukhuseleko kunye nokuthembeka.

Ukuhambelana:

Njengokuba, i-breaker circuit eyenzelwe i-enclosure ye-flameproof ayikwazi ukusetyenziswa kwindawo ekhuselekileyo yokukhusela. Nangona kunjalo, ukuguqula indawo ebiyelweyo yokhuseleko eyandisiweyo ibe yengatshiyo kuvumelekile.

Ngoko ke, uhlobo olufanelekileyo lwendawo ebiyelweyo yokuthintela uqhushumbo kufuneka ikhethwe ngokusekelwe kwiimfuno zokwenene, kwaye ukutshintshwa akufuneki kwenziwe ngokungakhathali.