Arc Flash Hazard Calculations in DC systems
Author: Velimir Lackovic
The current international and national standards governing arc flash hazards do not adequately address DC systems. IEEE 1584 does not discuss arc flash hazard calculations in the DC systems, and NFPA-70E- 2000 only provides a short calculation method. Although the necessary calculation steps for DC systems are very similar to those for AC systems, there are marked differences, particularly with respect to protection, cause of short – circuit currents in the DC electrical systems, and the current interruption devices in DC systems, which function fast to limit the energy let – through.
This course is suitable for electrical engineers with a desire to better understand DC system fault calculations and DC system arc flash calculations. Subjects include issues related to DC fault calculation, DC protection equipment and DC arc flash energy calculation. Upon successful completion engineers will be able to address DC system fault calculation methodologies, basics of the DC protection equipment and methods to calculate incident energy in DC systems.
Once you complete your course review, you need to take a multiple-choice quiz consisting of thirty (30) questions to earn 4 PDH credits.
This course is intended to provide you with the following specific knowledge and skills:
- DC system fault calculation methodology
- Short circuit current calculation of DC elements such as batteries and rectifiers
- DC circuit breakers and fuses
- Calculation of incident energy in DC systems
- Protection of semiconductor devices
Download the Course to review and begin earning your PDH credits.
We provide technical courses for PDH credits that meet Board requirements for Professional Engineers, Geologists and Land Surveyors. This courses is guaranteed to be accepted in AK, AL, AR, GA, IA, IL, ID, IN, KS, KY, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WI, WV, and WY. Before purchasing this course, please confirm that your state Board is listed above.