Non-hazardous Area – IEC 60079
IEC 60079 is concerned with the classification of areas where flammable gas or vapour or mist hazards may be present. The classification may be used as a basis to support …
Resistance of Earth Electrodes in Parallel
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 …
Motor Cable Selection Chart Explained
Important: Please note that any materials presented herein is subject to the conditions of the disclaimer of this site. I am receiving a significant number of enquiries on how to …
Filipino Engineer Creativity
Where can you find an electric meter bank mounted 10 meters above ground? Only in the Philippines.
Where is the Quality Assurance?
I have seen these electric posts in the middle of a busy intersection. The road was widened but the electric posts remain in the middle of the road. This is …
Meters or Feet – Whichever Way You Want it
A multinational team of engineers went to a site trip to assess site conditions for a planned facility. There were supposed to be six(6) engineers but one (1) failed to …