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Monthly Archives: May 2012

Microinverters and AC PV Modules Are Different Beasts

Microinverters and AC PV modules are becoming very common in residential and small commercial PV systems. See photos 1 and 2. They have even...

Added Values: How do we monetize them?

Despite the downturn in the economy which has affected us all, IAEI has been looking for ways to provide additional services to help its...

DC AFCIs for Photovoltaic Systems Now Certified

Question 2011 NEC 690.11 requires DC arc-fault circuit interrupter protection in DC photovoltaic (PV) circuits. Are there any certified (listed) DC arc-fault circuit interrupters (AFCIs)...

Does UL certify (list) Photovoltaic (PV) module tracker devices?

Question Does UL certify (list) Photovoltaic (PV) module tracker devices? What about grounding lugs for PV modules? Where can I find this information? Answer Yes, UL does...

Is there anything new in wind turbine certifications?

Question Is there anything new in wind turbine certifications? Answer Yes, recently UL has created two new wind turbine certification product categories, Wind Turbine Drive-train Systems and...

Readily Accessible

It’s eight o’clock at night and you find yourself standing in front of energized equipment because you were called about an unplanned inspection and...

IAEI Education Committee is Vital to Change and Solutions

Education is vital in our industry, whether it is needed because of improvements in technology and installation methods or because of changes in codes...

Intersystem Bonding, 250.94

Cycle after cycle, men and women tirelessly volunteer their time and expertise in the electrical industry to meet together to forge yet another version...

The New 2012 Canadian Electrical Code

I excitedly cracked open my shiny, new Canadian Electrical Code to see what the future might bring. I found it full of surprises, most...

Location of Electrical Distribution Equipment in a Building — Are we consistent on this...

The subject of the required location for such electrical equipment as switchgear, panelboards, MCCs, switches, circuit breakers, capacitorsand transformers and of the required clearances...
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