DC Arc Flash Analytic Specifications
|
Calculate incident energy, arc flash, and shock protection boundaries in direct current (DC) systems.
Arcing current can be expressed as a function of the length of the gap and arcing voltage. Arcing voltage can be derived as a function of arcing current, system voltage and the available fault current. DCAFA V3.0 calculates arcing current using the iterative method by cycling through the equations for arcing current and arcing voltage until the answers converge. Next, the program will determine arc duration based on protective device time-current characteristics and circuit time-constant. Lastly, the program will calculate incident energy at working distance, arc flash and shock protection boundaries.
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |