The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and...

When sizing cables, the heat generated  by losses within any sheath or armour need to be evaluated. When significant, it becomes a factor to be considered...

If two dissimilar metals are touching and an external conducting path exists, corrosion of one the metals can take place.  Moisture or other materials...

Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...

Most installations involve some form of lightning protection system which is connected to an earth electrode.  The function of the earth electrode is to...

Resistors are electronic components that oppose the flow of current.  Manufactured in various types and ranges they have a wide application to electronics...

When current flows within a wire, a magnetic field is created. The potion of this magnetic field perpendicular to the wire is called the magnetic flux...

Current transformers (CTs) are used to convert high level currents to a smaller more reasonable level for use as inputs to protection relays and metering...

The other day I was reading 'Night of the New Magicians' by Mary Pope Osborn with my son.  The story is about a young boy and girl who travel back in time...

Cable insulation is used to provide electrical separation between conductors of  a cable.  During the historical development of cables, numerous types...