2300 Badger Drive Waukesha, WI 53188-5951 Phone: (763) 595-7777 www.cooperpower.com News Release Contact: Connie Smith 262-691-8227 Connie.Smith@cooperindustries.com Cooper Power Systems Liquid-Filled Transformers Approved by OSHPD for Applications in Seismic Zone Areas Product and anchorage designed to keep healthcare facilities safe and functional during natural disasters. HOUSTON, September 22, 2011 – The California Office of Statewide Health Planning and Development (OSHPD) has approved Cooper Power Systems liquid-filled substation and padmounted distribution transformers from 45 to 10,000 kVA for healthcare facility applications in seismic zones. As the only transformer line with OSHPD approval across this entire range of ratings, the Cooper Power Systems offering is the ideal solution for any critical facility in seismic zones. Both the liquid-filled substation and pad-mounted transformers – including components, supports and attachments – were shaker-tested by the International Building Code (IBC) and approved for use. Cooper Power Systems transformers are suitable for installation in nearly all locations as they are qualified for a spectral response acceleration at short periods (Sds) level of 1.93, and include a wide array of transformer sizes and accessories. “While we certainly hope these products will never need to be tested by a real natural disaster, we do know that they’re up to the task,” said Mike Stoessl, president of Cooper Power Systems. “Each product features a well-built frame, and is capable of standing up to a high level of seismic activity. With this certification, we aim to make it easier for healthcare and other critical facilities to include Cooper Power Systems liquid-filled transformers in their design and – should a natural disaster strike – keep them safe and functional.” Cooper Power Systems, a subsidiary of Cooper Industries plc (NYSE: CBE), offers liquid-filled substation and pad-mounted transformers in a standard design featuring a sturdy electrical framework held within a sealed, multi-point anchored tank, and a high-efficiency, rectangular core coupled with compact and electrically balanced coils. They are shaker-tested for structural and functional integrity, and are complete with pre-determined anchorage provisions and bolting recommendations. -More- Cooper Power Systems – Page 2 Choosing OSHPD-certified Cooper Power Systems transformers saves the time and cost associated with engineering consulting fees since the certification eliminates this step. Facility managers can also choose from a host of customized designs with the industry’s largest array of distribution transformer sizes and accessories available. Cooper Power Systems offers a wide range of electrical apparatus and OSHPD-qualified accessories including overcurrent and overvoltage protection devices, monitoring devices, corrugated, radiator panel and fan assists, as well as visible load-break, dual voltage switch, and tap changers. For more information or to learn more visit www.cooperpower.com. Editor’s Note: For additional information, contact Mike Petrasek at (412) 394-6611 or michael.petrasek@bm.com. About Cooper Power Systems Cooper Power Systems, with 2010 revenues of approximately $1.2 billion, is a subsidiary of Cooper Industries plc (NYSE: CBE), and a global manufacturer of world-class power delivery and reliability solutions for the utility, commercial, and industrial markets. Cooper Power Systems is a leading provider of innovative Smart Grid technologies that optimize electrical grid performance. These solutions include Advanced Metering Infrastructure (AMI), Demand Response (DR), Smart Sensors, Power Systems Engineering Software and Services, Substation Automation, and Feeder Automation. The company is also a leading provider of software, communications and integration solutions that enable customers to increase productivity, improve system reliability, and reduce costs. For more information, please visit www.cooperpower.com. About Cooper Industries Cooper Industries plc (NYSE: CBE) is a global electrical products manufacturer with 2010 revenues of $5.1 billion. Founded in 1833, Cooper's sustained success is attributable to a constant focus on innovation, evolving business practices while maintaining the highest ethical standards and meeting customer needs. The Company has seven operating divisions with leading market positions and world-class products and brands including: Bussmann electrical and electronic fuses; Crouse-Hinds and CEAG explosion-proof electrical equipment; Halo and Metalux lighting fixtures; and Kyle and McGraw-Edison power systems products. With this broad range of products, Cooper is uniquely positioned for several long-term growth trends including the global infrastructure build-out, the need to improve the reliability and productivity of the electric grid, the demand for higher energy-efficient products and the need for improved electrical safety. In 2010 fifty-nine percent of total sales were to customers in the industrial and utility end-markets and thirty-nine percent of total sales were to customers outside the United States. Cooper has manufacturing facilities in 23 countries as of 2011. For more information, visit the website at www.cooperindustries.com. ###