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Electrical Industry News

Webcast: It'll work, but is it UL and NFPA approved?
The UL White Book is often referred to as 'the rest of the story' when it comes to properly choosing, specifying and installing electrical apparatus. This archived Webcast presented by Thomas Lichtenstein, Senior Staff Engineer in UL's Regulatory Services Department, explains what the UL White Book is, and how it can simplify electrical equipment specification, installation, inspection and acceptance...Watch the Webcast (Editor's Note: Webcast may take a second to load from NFPA server; be sure to hit play, lower left hand corner of the video player window.)

Destroying Myths About Reconditioned Breakers
Don't just take PEARL's word for it. Author Dick Bopp looks at when reconditioned breakers make sense. His checklist of considerations for qualifying reconditioned breakers includes all the planks of the PEARL platform: test, document, use accepted best practices and know your supplier. PEARL would add: recondition to the only accepted industry standard...Read More

The 1, 2, 3's of Transformer Oil Testing
Testing transformer insulation oil is critical to keeping these devices in optimum service and avoid potentially explosive incidents. This article discusses interfacial tension, acid number, oil moisture, power factor, dielectric, DGA, and color analysis and what they reveal about the health of the transformer's internal insulating components...Read More

Circuit Breakers Part 5: Insulated Case Circuit Breakers and Common Accessories
The fifth installment in this 6-part circuit breaker paper discusses insulated case circuit breakers and common accessories, such as shunt trips, alarm switches, sensors, undervoltage trips, lock-outs/tag-outs, and more...Read More
PEARL Member Shermco Industries Inc. Acquires Coastal Switchgear
PEARL member, Shermco Industries, headquartered in Irving, Texas, has reached an agreement to acquire fellow PEARL member, Coastal Switchgear & Controls, Inc., a company based in Angleton, Texas that specializes in shop and field repair, maintenance and testing of electrical equipment. ...Read More
Tech Talk: Answer the Challenge for Chance to Win 4GB iPod!!
When it comes to advancing the use and distribution of electrical power, the latest technological advance isn't industry's only consideration. This month's Tech Talk Challenge asks about the powerful forces that worked behind the scenes to shape the electrical industry as we know it. Follow this link to see this month's question and email us your answer. Winner's will be drawn from all correct answers at the end of July. Visit the PEARL website to learn the answer to last month's Tech Talk, and pay homage to last month's winner: William Ross of City of Monroe, North Carolina.

Forget Paid Advertising: Cut Costs with this Kick-Butt Alternative.

How To Inspect, Recondition and Test Medium Voltage Disconnect Switches
Like low voltage disconnect switches, medium voltage disconnect switches perform a Safety Switchnumber of functions. The term "disconnect" refers to the act of interrupting or causing an opening in an electrical circuit. In addition to turning off whatever load is consuming this electricity, disconnecting allows for the isolation of the down stream circuit for purposes of inspection and maintenance. Disconnect switches often serve as enclosures for over current protection when they contain fuses. Some can also be a part of a larger protection scheme when equipped with a shunt trip that can be signaled by relays elsewhere in the network...Read More

Find a PEARL Member in Your Area!!

Issue: 16, July 2010
In This Issue
UL White Book Webcast, Destroying Recon Breaker Myths, Transformer Oil Testing, and All About Breakers, Part 5
Win An 4GB IPOD!!
How to Recon MV Disconnects
Find a PEARL Member Near You
PEARL Conferences
   Denver Breaker
Visit with PEARL at these Trade Shows and Conferences:

APWA International Public Works Congress & Exposition - Booth #426, August 15-17, 2010, Boston Convention & Expo Center, Boston, MA

NECA National Electrical Contractors Association Convention and Trade Show -Booth #1137, October 2-5, 2010, Boston Convention & Expo Center, Boston, MA
   National Switchgear Jan 2010
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