Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...

Everything physical in electrical engineering from insulations to conductors revolves around materials. Here we are listing common materials along with...

The (relatively new) switchgear and control gear standard, IEC 61439 'Low-voltage switchgear and controlgear assemblies' has three methods which can be...

Dielectrics (insulating materials for example) when subjected to a varying electric field, will have some energy loss.   The varying electric field causes...

The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.

I was digging in my bookshelf and came across the 80th Anniversary Association of Mine Resident Engineers, Papers and Discussions Commemorative Edition...

I'm a fan of using manufacturers catalogues. There are two main reasons for this. Firstly, if your involved in the purchase of equipment, you will likely...

While not as popular as it once was, frame leakage protection does still have some use in some circumstances.  In essence frame leakage is an earth fault...

How often installations are inspected is up to the owner of the installation, provided such durations do not exceed any regulatory maximums in force. ...

The other day I came across an article in Technology Review on the development of a smart transformer. A professor at North Carolina State University is...