What is insulation coordination and what is its importance? There are many definitions of insulation coordination provided by different authorities. In this instance, we wanted to use IEC 60071-1 definition …
I did mention in one of my articles, Safety In Design, that compliance shall be in the following order Acts / Laws Regulations Codes of Practice Standards Industry Standards I …
The first edition of the PEC published in 1962 by PAMEE was an adaptation of the NEC customized to suit the local Philippine environment. Several decades later and the PEC …
In this article, I have discussed the difference between a conventional transformer and a K-factor rated transformer. In modern-day plants, Variable Speed Drives (VSD) are widely used. The project I …
This tutorial serves a guide for the creation of time-current curves using Excel 2013. The user is expected to have at least an intermediate level of knowledge in the usage …
In previous articles Single Earth Electrode and Earthing Resistance Calculation, I have presented methods of calculating the earth resistance using IEEE or IEC methods. AS 1768 Appendix C recommends that …