What is Internal Arcing Fault Clearing Time Switchboard rating for internal arcing fault clearing time is defined as the amount of time a switchboard or panelboard can withstand an internal …
What is Arc-Flash? Arc-Flash is a type of electrical explosion that occurs when an electrical current leaves its intended path and travels through the air from one conductor to another …
Almost always, stationary battery rooms ventilation is an argument among engineers. However, seldom do their reasoning are based on scientific evidence to prove their position. IEC std 62485 provides a …
What is Short-Circuit Current Rating? The Philippine Electrical Code 2017 defines Short-Circuit Current Rating as the prospective symmetrical fault current at a nominal voltage to which an apparatus or system …
Potential Hazards Step potential is the voltage difference between the feet of a person near an energized, grounded object. A person on the ground is subjected to the risk of …
Mixing low voltage (LV) and extra-low voltage (ELV) control voltages in a multicore cable is a common mistake committed by inexperienced design engineers. Combining these control voltages may look good …