Electrical Construction & Maintenance

Code Q&A: Grounding Requirements for A/C Equipment on a Roof

Courtesy of www.MikeHolt.com. Based on the 2020 NEC. Q. When does the NEC require an equipment grounding conductor of the wire type for air-conditioning or ...
Electrical Construction & Maintenance

Stumped by the Code? NEC Requirements on Grounding Electrode Requirements for Separately Derived Systems and GFCI protection Requirements of Space-Heating Cables

All questions and answers are based on the 2011 NEC. Q. What are the grounding electrode requirements for a separately derived system, such as a transformer? [250.30(A)(4)] A. First of all, let’s ...
Ohsonline.com

Preventing Shock with Proper Grounding Techniques

AN estimated 58 people lose their life each week as a result of electric shock. In an electrical system, the grounding system is the primary protection against electrical shock hazards. It provides a ...
EDN

Control System Grounding – Part 2: Ground Wiring, Shield Grounds, and Power Supply Grounding

Order “Control System Power and Grounding Better Practice” today and receive an additional 15% discount. Click here www.elsevierdirect.com and make sure to type in 92839 when ordering this book. Or ...