Over the past year or so I've been involved in on going discussions related to referring fault levels from the secondary of a transformer to the primary...

A load flow study is the analysis of an electrical network carried out by an electrical engineer. The purpose is to understand how power flows around...

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

We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.

Steel ladders, trays and baskets form the backbone of cable containment systems. Often these items need some form of surface treatment to prevent corrosion...

Often document control is dictated by project requirements, for example a particular organisation may have an existing numbering system. Existing company...

Many medium voltage (MV) indoor switchgear rooms  exist worldwide. The complexity of these rooms varies considerably depending on location, function and...

HTML supports a variety of entity symbols which can be entered using either numbers or an entity name.  The number or name is preceded by the ‘&’ sign...

IEC 62305 'Protection against lightning' requires a risk assessment be carried out to determine the characteristics of any lightning protection system...

For unbalance conditions the calculation of fault currents is more complex. One method of dealing with this is symmetrical components. Using symmetrical...