Arc-flash – hazards, mitigations and standards
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 …
PEE Board Exam April 1991 – First Placer
I took my Assistant Electrical Engineering Board Examination in October 1983 without attending any review classes. I just borrowed some review materials from friends to prepare for the board . …
A Filipino Engineer and the Washington Accord
In 2009, I have written an article about the “Mis-Education of the Filipino Engineer”. After more than a decade, I still believe that despite the changes in the Philippine Educational …
Ventilation Requirements for Stationary Battery Rooms
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 …
Hazards of Insufficient Short-Circuit Current Rating according the Philippine Electrical Code 2017 Edition
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 …
If you don’t know, Ask…
Being a Technical Professional for more than three (3) decades now, I could spot pretenders very easily. If I say pretenders, I am not referring to the English-American rock band …