Effect of Utility Fault Level to Low Voltage Equipment Ratings
There are times that the Electrical Engineer are unable to get the utility fault level data to calculate the required electrical parameters for a project. In such case, it is …
Hardwired vs Software Interlocks
As an Electrical Engineer, I am biased to hardwired interlocks. I don’t have any doubts software can be very efficient particularly during normal operating conditions, not to mention the speed …
Emergency Lighting Design, Requirement and Compliance
Why is Emergency Lighting Required Emergency lighting is one of the most important safety systems in a building or plant area. Emergency lighting makes it possible for people to safely …
PEC Requirement for Ground-Fault Protection
The Philippine Electrical Code 2017 edition have mentioned Ground-Fault Protection or sometimes Ground-Fault Circuit Interrupter Protection in the following articles: Article 2.10 Branch Circuits 2.10.1.13 Ground-Fault Fault Protection of Equipment. …
Grid-connected Solar Photovoltaic (PV) System – Need to Know
Some companies and individuals installs grid-connected photovoltaic (solar power) system particularly in domestic applications give promises that electricity billing will be reduced. This marketing strategy of these so called PV …
Effects of Electrical Current to the Human Body
Electricity is one of the most essential inventions in modern times. Whether at home or in the workplace, electricity is normally used. Life of the modern man will not be …