Eaton Corporation


		Was this email forwarded to you? If you like what you read, become a subscriber here. Have a question about electrical safety? Eaton experts are just an e-mail away! Submit your question here and receive feedback from Eaton’s electrical specialists within 48 hours. Interactive Media: Interactive Electrical Room Application Data: Electrical Solutions for Wind Power Events: 2009 Arc Flash Seminars Links: MikeHolt.com Eaton Collaborates With Electrical Safety Foundation International To Build Awareness Of Counterfeit Electrical Product Dangers Eaton Increases Arc Flash Safety Awareness During National Electrical Safety Month Did You Know? • The U.S. is now the number one wind power producer in the world • The use of wind energy goes back to 5000 B.C., when Egyptians used wind to power their boats in the Nile • Wind energy is one of the lowest-priced renewable energy technologies available today, costing between 4 and 6 cents per kilowatt-hour • The U.S. has enough wind resources to generate electricity for every home and business in the nation
IN THIS ISSUE Applying NFPA 70E to wind power Eaton Safety Webcast Harness Your Wind Power Did You Know? Interactive Media Application Data Ask the Expert

	Applying NFPA 70E to wind power Wind farms require complex equipment that must work together efficiently to generate electricity and transmit it to the utility grid. This year, changes were made to NFPA® 70E, affecting safety regulations that directly pertain to wind-power installation and upkeep. To sum up some major changes from 2004 to 2009: An electrical safety program must be documented (110.7) Employees must be retrained for any activity that is not performed at least on an annual basis (110.6.D) Training must be documented (110.6.E) Complex lockout/tagout procedures must be documented (120.2.D) Arc flash analysis must be reviewed at least once every five years—or after a major modification or renovation (130.3) Equipment now must be field labeled, noting either incident energy or appropriate PPE levels (130.0.C) Overcurrent devices are required to be maintained in accordance with the manufacturer’s instructions or industry consensus standards (205.3) These items are applicable to all wind-power installations. Do you have questions or concerns regarding these changes, specifically how they apply to your wind power system? Join us for our 2009 Arc Flash Seminars, covering NFPA 70E-2009. To find out more about these seminars, click here. Eaton safety webcast Don't miss Eaton's David Shipp, principal engineer, Electrical Systems and Services Division, discusses updates to safety-related codes and standards. Shipp will be joined by Michael Morse, Ph.D., J.D., University of San Diego, Department of Electrical Engineering. Details about the webcast are below. We hope you find the time to join David and Michael. The following topics will be discussed: 2009 changes to NFPA 70E (Standard for Electrical Safety in the Workplace) NESC ANSI C2-2007 (The National Electrical Safety Code) Ongoing/pending research of IEEE 1584 (Guide for Performing Arc Flash Hazard Calculations) Viewing safety design from a legal perspective Register here. Harness your wind power Because wind farms are often located in remote areas, monitoring and maintaining equipment can be complicated. Eaton has a wide range of products to be used in wind farms. These industry-leading products and services are designed to deliver energy efficiency, reliability, safety and cost-effectiveness. Eaton’s solutions for wind power allow you to: Simplify your inventory—Eaton’s globally certified ANSI and IEC switchgear allow you to keep a lower inventory level with a global design scheme based on a single product platform. Keep system operational—by using Eaton’s UPS solutions, you can keep the turbine control system powered, even when the the turbines are not moving Save space—get more capacity in the same square footage with a metal-enclosed front-accessible switchgear Find custom solutions—Eaton’s Satellite and Service Centers can customize equipment when you cannot find an off-the-shelf solution for your wind farm power needs Discover cost-effective assembly solutions—a totally integrated solution, such as Eaton’s integrated power assembly, is shipped in one enclosure, configured and pretested for quick installation Locate skilled field service—throughout the U.S. and Canada, Eaton’s Electrical Services and Systems engineers provide support in the field for components made both by Eaton and other electrical manufacturers. Eaton can also provide additional services including arc flash studies, safety improvements and turnkey substation construction services. For more information regarding Eaton’s electrical solutions for wind power, call 1-888-ETN-1USA or click here to locate a sales office. Ask the Expert Do you have a question about electrical safety? Eaton experts are just an e-mail away! Submit your question here and receive feedback from Eaton’s electrical specialists within 48 hours. Q: What is your opinion about using NFPA 70E Table 130.7(C)(9) with voltages of 690 volts common in the wind turbine industry. Arc flash studies are not imminent. In the interim, should 690v be associated with 600v equipment class or 1000v class equipment. A: I would not recommend relying on Table 130.7(C)(9) because of the two footnote restrictions. The two restrictions are: A maximum available fault current An application of either an instantaneous setting or a STPU of 0.33 sec or 0.5 sec or less as noted when working on 600V nominal systems. These conditions would need to be confirmed for each location before the table can be used and in some cases the confirmation may require a SC analysis (half of the arc flash study).The 1 kV and up ratings in this table apply to Metal-Clad switchgear which is not applicable to Eaton’s Magnum switchgear or other low voltage switchboards and panelboards because they are metal-enclosed, not metal-clad. I don't think the "Other Equipment 1 kV through 38 kV" would apply to our Magnum switchgear or low voltage switchboards applied at 690V either - this category is more in line with medium voltage switchgear, pole operated switches, and cable examination applications. My recommendation is to not use NPFA70E (2009) Table 130.7(C)(9) for 690V rated systems and rely on specific calculated incident energy levels as determined by an engineering arc flash analysis.