Kufotokozera Kwachidule:

Ma board ogawa a HDB-H amapezeka ndi chitseko chokhazikika kapena chogawanika cha thireyi. Ali ndi chitseko chachitsulo chodzaza bwino chokhala ndi chogwirira chamtundu wa "slam". Ma board onse amaperekedwa ndi mipiringidzo ya Neutral ndi Earth ndipo neutral yapangidwa kuti izungulire chipangizo cholowera kuti zitsimikizire kuti pali malo owonjezera a mawaya a zida zotuluka. Chipangizo cholowera chiyenera kusankhidwa ndikuyikidwa ndi wokhazikitsa. Ma plates a gland apamwamba ndi pansi amatha kuchotsedwa ndipo ali ndi ma knock-outs kuti agwirizane ndi ma conduits a kukula koyenera. Chitsekocho chimaphimbidwa kwathunthu ndipo mabasi ndi amodzi mwa mapangidwe ake, izi zimatsimikizira kuti palibe "malo otentha" omwe angachitike chifukwa palibe malo olumikizirana makina. Ma boardwa amalumikizidwa ndi BSEN 60439-1 & 3.