For the induction relay type of magnetic mine, the normal actuation level (nal) is the amplitude (if half peak to trough) of the single (full cycle) sine wave magnetic field which will just cause actuation of the period of maximum mine response, eg 1 mgs (15 seconds)
Ukulandelelana kokubekwa kwebhombu enesitsalane, owona mgangatho uqhelekileyo woqhutyo (i-nal) bububanzi (ukuba incopho iphumele ngaphaya) komjikelezo omnye opheleleyo womsinga wesitsalane esifunekayo esiza kuthi sibangele uqhutyo lwelona xesha lokuqhushumba kwembhombu, umz. i-mgs e-1 (yimizuzu eli-15)