The 2002 NESC Strength and Loading $$

The most significant change to the 2002 National Electrical Safety Code (NESC) is in the strength and loading requirements for aerial electric distribution and...

Circuit Overcurrent Protection

Overcurrent devices protect the circuit conductors and conductor insulation from overheating. They also limit the damage associated with overheating and faults in downstream equipment....

Temporary Installations

The first thing one notices about Article 305, Temporary Wiring, in the 2002 National Electrical Code is that it is no longer there! By...

Wiring Methods and Overcurrent Protection

One of the most fundamental elements of an electrical installation is the connecting of the wiring method to an overcurrent device. Seems simple right?...

Parallel Generation

The Canadian Electrical Code, Rule 14-612 Transfer Equipment for Standby Power Systems prohibits the simultaneous connection of two or more power supplies to electrical...

Can Power Strips be Daisy Chained or Plugged Directly into a...

Question: GTO cable in raceway Does UL List a GTO cable that does not need to be installed in a raceway? Answer GTO cable is Listed by...

Selection of Arc-Fault Circuit Interrupters

The 2002 National Electrical Code (NEC) requires that the branch circuits supplying outlets of dwelling unit bedrooms, as well as mobile homes and manufactured...

Another Step Forward

The electronic age has opened the way to an exciting world involving advanced methods of communications. What was once thought to be science fiction...