Daim vis dis aus saum toj no tau luam tawm los ntawm (EC& M) cov ntawv xov xwm
Hauv ntu no, EC& M' s Russ LeBlanc qhia txog EMT kev teeb tsa rau hauv qhov chaw ntub dej sab nraum zoov uas siv cov khoom tsis haum uas yog EMT ntsia hlau fittings. Nws tau ua txhaum ntawm Sec. 358.42 ntawm 2014 NEC. Peb yuav tsum siv cov fittings xws li raintight emt fittings uas tau teev nyob rau hauv qhov chaw ntub dej.
Peb yuav muab ntau cov yeeb yaj kiab qhia txog hluav taws xob txhaum nyob rau hauv EVT cov ntaub ntawv.
