Plant Services - April 2008 - (Page 14)

UP AND RUNNING ignorance of the NEC restrictions on UL508 devices. Another is cost – a UL508 manual motor controller can be smaller and less expensive than a UL98 switch, and it might be tempting for an electrical contractor to install a UL508 device to keep costs down. The best guideline, then, is unless you feel confident that an electrical contractor understands the proper application of UL508 devices, insist on a UL98 safety switch. A UL98 switch will still cut the power to the main and branch circuits, including motor-powered machines, which is more desirable than a UL508 misapplication that could cost time and money to rectify. Roger Pollack serves as the product line manager of safety switches for Schneider Electric. ResouRces catalog marks record gain Touting the largest product expansion in the company’s history, Grainger’s 2008 catalog lists more than 183,000 maintenance products, an increase of 44,000 items over last year’s selection. Power transmission components, raw materials and fleet maintenance items lead the additions. New “Tough Guy” professional cleaning supplies include degreasers, disinfectants, foam and lotion soaps and dispensers, and polyethylene trash containers. For your own 3,900-page copy or to access its contents online, see www.grainger.com/news. Align pumps for fun and profit One of the prerequisites that allows pumps to work efficiently is proper shaft/coupling alignment before start-up and after any maintenance or repairs. Learn why reliability requires precision alignment and how a lean maintenance staff can save time and energy with the proper tools by downloading the guide, “Why Precision Shaft Alignment?” at www.ludeca.com/whyalignment.htm. Insider’s guide to air system design Dilbert goes wireless The new Dilbert Bluecat, New Horizons in Wireless Communications, by Omega Engineering, contains more than 95 pages of information and products for wireless applications. Also featured are 60 classic Dilbert Cartoons. Visit www.omega.com/ literature/wireless. The eight-page guide, “Designing Your Compressed Air System,” takes you step-by-step through the process. It helps you determine your compressed air demand, pressure and storage requirements, design the distribution and lay out the system. Revised to include best practices for air-system management and controls, it also includes a compressed-air glossary, guidelines and conversion formulas. Find it at http://us.kaeser.com/Advisor/Edu cational_Aids/default.asp. 14 www.PLANTSERVICES.com April 2008 http://www.ludeca.com/whyalignment.htm http://www.grainger.com/news http://us.kaeser.com/Advisor/Educational_Aids/default.asp http://www.omega.com/literature/wireless http://www.omega.com/literature/wireless http://us.kaeser.com/Advisor/Educational_Aids/default.asp http://www.pdma.com http://www.PLANTSERVICES.com

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Plant Services - April 2008 Contents From the Editor Letters The PS Files Up and Running Crisis Corner What Works Asset Manager Technology Toolbox Cover Story Compressors Motors Flooring Web Hunter In the Trenches Product Picks Classifieds Energy Expert

Plant Services - April 2008

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