Unlike solar and wind systems, fuel cells run on fossil fuel, even though they reduce fossil fuel usage in total. However, that is changing — as biomass-based fuel cells are being developed.
Understanding the 2011 revisions to Art. 680. The installation requirements of Art. 680 help keep people safe when they’re using swimming pools, hot tubs, spas, fountains, or hydromassage bathtubs.
The main goal of Art. 645 is to reduce the spread of fire and smoke (for any room that conforms to NFPA 75, Standard for the Protection of Information Technology Equipment).
Abstract: In this webinar, Mike will not only explain the current NEC requirements for GFCIs and AFCIs, but he'll explain how they operate, what causes their premature failure, and when they won't provide the safety protection you might have thought they would.
Abstract: This webinar will teach attendees the difference between risk and hazard, and how the choice of system grounding has a direct impact on reliability and safety.
