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Monthly Archives: July 2012

The Conductors, Getting Solar Energy to the Inverter for 40–50 Years

Harsh Environment—No Maintenance PV modules may be generating energy for 40–50 years after installation. While power production may not be what it was when the...

FACE-TO-FACE TIME — Its value and where to find it

Never underestimate the value of networking face-to-face! Despite the various ways of communicating — phones, email, instant messaging, social media, faxing, snail mail, telegram,...

Is the XO Jumper Sized Correctly?

Question Is the XO bonding jumper strap provided in certified (Listed) dry type core and coil transformers used in typical commercial installations adequately sized? Answer Dry type...

Rule 4-004, Comparable But Different

You probably noticed a number of important changes from 2009 to the 2012 edition of the Canadian Electrical Code. Section 4 – Conductors has...

Safety Something Earned

One could argue that due to the technologies on the market, arc flash and other electrical life-threatening events should be rare occasions. But electrical...

Essential Electrical System — Who is to say?

No, really — who is to say? Where is such entity defined or described? The answer could be found in two following documents: In the...

The Grateful Leader

Here is a simple idea to enhance your capacity for leadership using gratitude. Gratitude is often misinterpreted as a sign of weakness — especially...

Standard Motor Control Circuits

Single-phase and three-phase AC squirrel cage induction motors need some type of circuit to initiate a start or stop function. Usually single-phase motors and...

SCADA and Homeland Security

Not so long ago when an industrial plant operator needed to redirect flows or even start and stop a procedure, it was often times...

Article 220, Continuation

Starting with Part III of Article 220, which is titled Feeder and Service Load Calculation, we will finally start with the actual math work....
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