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Sunday, May 28, 2017

Monthly Archives: September 2012

Inspectors Rejoice! At Last — Significant Progress in a PV Standard

Most inspectors don’t have or have not read the UL Standards related to PV systems, because the standards are expensive and do not relate...

Fact or Fiction

Summer has drawn to a close and families have sent their children back to school. Fall is upon us and IAEI members are attending...

Is there a way to interact with UL’s Regulatory Services Department Staff on social...

Question Is there a way to interact with UL’s Regulatory Services Department Staff on social media? Answer Yes, UL’s Regulatory Services Department has a discussion group on...

Has UL Certified any small wind turbines?

Question Has UL Certified any small wind turbines? Answer Yes, UL has certified small wind turbines under the product category Small Wind Turbine Generating Systems (ZGEN), located...

Radio equipment that uses a screw-type fastener to bond or attach the grounding conductor...

Question We have some radio equipment that uses a screw-type fastener to bond or attach the grounding conductor to the antenna assembly. Can this screw...

Grounding and Bonding — Are we on the same page?

In the electrical industry, there is hardly a subject that appliesmore often than the issue of bonding and grounding. And yet, this matter remains...

New Wiring Rules in Sections 4 and 12

The 2012 Canadian Electrical Code introduces some real changes. Many of them will be found in Sections 4 and 12 for wire and cable...

Going to Basics, Maximum Fault Current

One of the most basic calculations for any power system, and arguably the least understood and most misrepresented, is the calculation of available fault...

Electrical Inspections for Carnivals, Fairs and Traveling Shows

Challenges The carnival or traveling show will only be in town for the duration of the local festival or county fair before it’s torn down,...

Selective Coordination as a Source of Pride

Can you think of an accomplishment that is a source of great pride? My foray into selective coordination served as my introduction to the electric...
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