Calculating Flash Protection Boundary Distances
In NFPA 70E, the short-circuit symmetrical ampacity from a bolted 3-phase fault at the transformer terminals is calculated with the following formula: where Isc = Amperes, V = Volts, %Z …
Cathodic Protection and Earthing
Cathodic protection and earthing are two different topics belonging to the opposite sides of the spectrum. The implementation and principles are actually different. To simply illustrate what I mean, for …
Arc-Flash Hazards
An arc-flash is a release of energy caused by a flow of fault current through an electrical arc plasma. Arc flashes can occur when racking a breaker in/out, removing a …
Free Arc Flash Safety Training Presentations
I received an email today from Matthew Pelletier, Director of Marketing, Compliance and Safety. Matthew mentioned that he was able to read my article about arc flash hazard and ask …
I Chose To Look The Other Way
I just have my workshop about safety. It was truly a very interesting activity about hazards, risks and elimination or mitigation thereof. What caught my attention most was a video …