September/October 2012

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

Has UL Certified any small wind turbines?

Yes, UL has certified small wind turbines under the product category Small Wind Turbine Generating Systems (ZGEN)

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

Is it code-compliant to install Type NM cable exposed in an attached residential garage? How about a detached garage?

Fact or Fiction

Being an IAEI Appointee to a Canadian Electrical Code Subcommittee

Making Changes to the Canadian Electrical Code

Life Safety Loads Depend on Reliable Power Systems

Magnetic Motor Starters as Controllers — A comparison of NEMA- and IEC-type devices

Selective Coordination of Emergency Systems — Taking the mystery out of enforcement

Selective coordination of the emergency system is intended to provide a high level of reliability and continuance of supply needed for systems providing emergency functions.