Earthing Systems

02- Earthing System Design

presentation :
http://www.mediafire.com/download/mj55b1n82vf4783/Earthing+2.pptx

exell sheet :

http://www.mediafire.com/download/bu8fgvq92ewkx6p/IA+Earthing+Calculations+BS+7430+%2BA1+2015+EEA.XLSX

^^ Earthing System Part 1 ^^

هتتعلم من الفيديو الثاني:
*تصميم نظام الأرضي بالكامل وتوصيف كل مكوناته

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