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CONTENTS
PUBLISHER
Danny J. Salchert OFFICE MANAGER
Anita Salchert ASSOCIATE PUBLISHER
Jerry DiChiara jerryd@epsmag.net CREATIVE DIRECTOR
Derek Gaylard CIRCULATION DIRECTOR
Pam Fulmer CONTRIBUTING WRITER
Jeff Jowett
6
PRESIDENT
Danny J. Salchert
FEATURES 6
Designer’s Choice: A Data Center Power Expert Explains Why He Adopted the Mitsubishi Megapod® as His UPS Standard
14
Measuring Low Resistance Part 2 of a 2 Part Article By Jeff Jowett
PRODUCT SPOTLIGHT 20 AEMC’s NEW Clamp-On Ground Testers Model 6416 & 6417
DEPARTMENTS 24 28 40
Industry News Product Focus Ad Index
ON THE COVER
Executive and Advertising Offices 3591 Cahaba Beach Road Birmingham, AL 35242 toll free: 800.981.4541 phone: 205.981.4541 fax: 205.981.4544 www.epsmag.net • danny@epsmag.net Electrical Products & Solutions™ is published twelve times a year on a monthly basis by ABD Communications, Inc., 3591 Cahaba Beach Road, Birmingham, Alabama, 35242, USA. Electrical Products & Solutions™ is distributed free to qualified subscribers. Non-qualified subscription rates are $57.00 per year in the U.S. and Canada and $84.00 per year for foreign subscribers (surface mail). U.S. Postage paid at Birmingham, Alabama and additional mailing offices. Electrical Products & Solutions™ is distributed to qualified readers in the electrical contracting industry. Publisher is not liable for all content (including editorial and illustrations provided by advertisers) of advertisements published and does not accept responsibility for any claims made against the publisher. It is the advertiser’s or agency’s responsibility to obtain appropriate releases on any item or individuals pictured in an advertisement. Reproduction of this magazine in whole or in part is prohibited without prior written permission from the publisher. POSTMASTER: Send address changes to ABD Communications, Inc., P.O. Box 382885 Birmingham, Alabama 35238-2885
Photo courtesy of Mitsubishi PRINTED IN THE USA
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Electrical Products & Solutions • October 2013
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FEATURE • Mitsubishi
Designer’s Choice: A Data Center Power Expert Explains Why He Adopted the Mitsubishi Megapod® as His UPS Standard
W
ith mature technologies, you don’t often hear about history being made. But ask Howard Chez, and he’ll tell you about the time he watched uninterruptible power supplies for data centers step into a whole new era. A consulting engineer specializing in electrical design, he was planning a data center in a Chicago high-rise before the Megapod® UPS configuration was even a glimmer in Mitsubishi’s eye. But, before long, Megapod became his default UPS recommendation. “Data center projects unfold in their own good time,” Chez says. “Sometimes they start small, but then you keep on adding pieces. The Chicago project is a good example. We began designing a three-or-fourthousand-square-foot facility in a downtown building in 2006, and today it covers seven floors. We’re still working on it, floor by floor, as space that our client would like to have becomes available for remodeling and updating.” The client, CoreSite Realty Corp., operates 14 data center campuses across North America. “Each phase of these long-term projects teaches you something new,” says Mr. Chez, whose practice is based in Skokie, Ill. “No matter how long you’ve been doing this, there’s always another insight waiting for you — either about the customer, the site, or the technology.” On the technology side, he says, he watched a dramatic innovation come into focus between 2006 and 2011. “Often, my clients make key equipment decisions before I come aboard. CoreSite has a lot of experience and technical sophistication, so their choices give me a solid foundation for facility design. And at the start of the Chicago project, their standard was a conventional UPS from another manufacturer, a pretty good product for that time. “As we expanded into additional spaces 6
in the building, CoreSite started to specify a more efficient UPS, the Mitsubishi 9900 series. They’d done their homework, so I had no difficulty integrating it with the overall design. Of course, the restricted floor plate
Electrical Products & Solutions • October 2013
in an existing high rise always presents some challenges, but fitting a bulky UPS into a tight spot was all in a day’s work. “Like any facility designer, I took it as a given that the switchgear, Continued on page 8
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FEATURE • Mitsubishi
Continued from page 6
AN INDUSTRY PROFESSIONAL EVALUATES PERFORMANCE AND TCO
Data center designer Howard Chez points to a 2012 competitive analysis comparing Mitsubishi’s Megapod® system, which features 9900B UPS modules, to a leading competitor’s solution. “If you look at total cost of ownership and efficiency, Mitsubishi is the logical choice, hands-down,” he says.
the batteries, and the actual UPS modules would occupy a certain footprint, and require certain clearances. You have to be creative, just as you do with the air handling, the mechanicals, the lighting, and the servers.
Mastering Space and Time “Then, in 2008, something changed. Working with CoreSite, Mitsubishi developed a 9900-Series UPS layout that questioned some necessary evils: Did a UPS really have to take up so much valuable floor space? Did installing it have to be so labor-intensive?” What Mitsubishi introduced, Mr. Chez says, was “a highly integrated product in which everything fits together in a nice, neat 8
row. Switchgear on one side, UPS modules backed up against it and batteries at the end. From CoreSite’s standpoint, space is money, and here we had a lot less wasted space.” In addition to real-estate concerns, the new approach was partly driven by CoreSite’s desire to streamline communications — and the division of labor — among itself, the onsite contractor and Mitsubishi. “CoreSite and Mitsubishi arrived at a onestop-shop concept that would minimize installation issues.” “It would all would fit together by design, so we’d be able to pack a lot more UPS density into a given space. The product would be unusually compact, with just a single connection point going in.”
Electrical Products & Solutions • October 2013
Luke Jolitz, the CoreSite facilities manager, describes the space-saving tactic as “folding the traditional layout in half. Like a lot of brilliant ideas,” he notes, “once you see it, you say, ‘Why didn’t we think of this before?’ ” “The next installation was the fastest I’d ever seen,” says Mr. Chez. “The units arrived at the site already assembled and tested. Everything pre-cut, everything terminated. The contractor and rigging company put the different modules and pieces in place, and then Mitsubishi came in — one, two, three — to do all the connections, the final testing, and the startup. “Less quantifiable, but critical, was the way the new approach took away the burContinued on page 12 den of possible
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FEATURE • Mitsubishi
Continued from page 8
miscommunication between the client, the contractor and the manufacturer. No more finger-pointing, and no more problems with start-up, because Mitsubishi handled it all. Since then, we’ve done a series of installations, filling three more floors of the building, using those Mitsubishi systems.” Later phases of the Chicago project have called for higher UPS capacities. “The original systems we installed had up to four 225-kVA modules, whereas the newest systems call for three modules of 500 kVA each. Usually, now, we’re installing an N+1 system, where you have two modules being used for load and the third to pick up the load if one of the primary modules goes down.”
Introducing Megapod The most recent phases of the Chicago installation feature the fully developed version of the compact approach, which Mitsubishi now calls Megapod. Megapod integrates the efficient Mitsubishi 9900B UPS with batteries, bypasses and critical load cabinets in one economical layout. The system eliminates many conventional conduits and cable runs, with a “bus backplane” that reduces connections by 80 percent. Mitsubishi asserts that Megapod can shorten installation and commissioning time from six weeks to two weeks, and trim total cost of ownership by as much as $273,000 per system in the first five years. 12
Other than footprint and installation advantages, designer Chez says, “There are technical reasons why I like Mitsubishi equipment. For instance, I always have to cool the room to provide an environment where the UPS and the batteries will give you the best life. The 9900B has one of the highest — if not THE highest — efficiency levels in the industry. And that translates into a total system that needs less cooling than competing UPS setups. Beyond that, your cooling installation costs are lower, and you don’t have the same cooling-related power drain that a less efficient UPS would give you. “In terms of facility design, Megapod makes sense in so many ways. The backto-back layout minimizes the UPS footprint. All of the cables come cut to length and lugged, to shorten the installation time. The batteries have front-mounted terminals, so the cabinets can be smaller — again, trimming the footprint. The modular layout means shorter lead time and easier scalability. And the 9900B’s efficiency gives you lower total cost of ownership across the board. “The vendor has evolved, too,” says Mr. Chez. “During the infancy of the Megapod concept, we were all learning together. But now the Mitsubishi UPS Division has matured into an outstandingly adaptive and helpful company. It’s really been a joy to work with them, to get the information we need when we need it, and — if there’s an
Electrical Products & Solutions • October 2013
issue — to resolve it without any hassle. It’s been much easier to work with Mitsubishi than with a lot of other vendors.”
Keeping the Faith While Mr. Chez bases his CoreSite facility designs on equipment that this client specifies, he’s eager to recommend Megapod as a solution for other projects as well. Take the ColoHub data center in Bettendorf, Iowa. The client, Geneseo Communications, Inc., is headquartered near Bettendorf, and this year opened a 32,000square-foot data center in a converted supermarket there. “I was instrumental in getting Megapod specified for this project,” Mr. Chez says. “Advanced technology like Megapod is just another reason why high-tech companies select Iowa as an attractive choice in data center locations,” says ColoHub president and CEO Scott Rubins. And Robert Heiderscheidt, president and CEO of MDI Access, the design-builder of the ColoHub facility, agrees. “Although floor-space issues were less critical for the Bettendorf project than they would have been in a high-rise situation, MDI has total confidence in the Megapod’s layout advantages. The high efficiency, the small footprint, the short lead time and the fact that Mitsubishi takes ownership of the connections and the testing onsite … it adds up to the cleanest, most effective system we’ve ever been involved with.” ❏
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FEATURE • Megger
Measuring Low Resistance
By Jeff Jowett
I
Part 2 of a 2 Part Article
n automotive assembly, robot spot welders develop fatigue in cables through continual flexing. As strands start to break, high lead resistance develops which will reduce power to the welding process and produce a poor spot-weld. UPS (Uninterruptible Power Supply) systems depend on low resistance joints and welds in order to be able to spring into action when called on line. Battery straps undergo stress from chemical corrosion, vibration, and heat during charging and discharge. A low resistance measurement between adjacent terminals will reveal these problems (Fig. 5). These systems typically carry a “float” charge. This extraneous voltage will affect measurements and so must be canceled out. Some full-featured ohmmeters perform a forward- and reverse-polarity test automatically and then display the average. Others have a toggle switch that is operated manually. If these features are not present, the leads can be switched and the readings averaged. If too high a resistance is observed, this condition should NOT be “corrected” by tightening bolts; this merely over-stresses the soft lead terminals. The proper correction is to disassemble the straps, clean off corrosion, grease and reconnect them with bolts tightened to supplier’s torque level. All connections should be balanced within a narrow tolerance of ±10 to 20%. Transformer windings are resistance tested first at the factory to meet basic spec, and then a heat run is performed to assure specified performance at rated power. “Taps” are subject to particularly heavy use during operation and so should be maintenance tested. Secondary taps are operated
FIGURE 5
daily as the power grid balances the load, and may be exposed to excessive wear and vibration. Primary taps may be subjected to major power adjustments and so should be tested regularly for the ability to accommodate any required current without overheating. When not in use, corrosion can take over and render the taps ineffective. At power generation and distribution points, jointed bus bars deliver current to the various circuits in the system. Vibration and corrosion can weaken these joints, and so testing is requisite to maintaining a good connection (Fig 6). Historical data are particularly useful here. If left uncorrected, loose or corroded joints cause loss of power, excessive heat, and can generate meltdown or fire. Another critical part of the power grid are circuit breakers. The contacts must be maintained in good working order, and this can be indicated by a low resistance test. Arcing across contacts causes the surface to become pitted and develop carbonized layers. This effectively reduces the surface
FIGURE 6
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Electrical Products & Solutions • October 2013
area for current transfer, increasing resistance and causing the breaker to heat up. Reduced efficiency or catastrophic failure can ensue. For large oil circuit breakers, the best test instrument ramps up current, holds for the measuring period, and then ramps down. This reduces magnetization which otherwise could cause CTs to read incorrectly when brought back on line. Aircraft assembly is heavily dependent on effective low resistance testing in order to maintain the hull of the aircraft at ground plane. Large static charges should not build up during flight but should be able to migrate across hull and wings to be discharged through static wicks on the trailing edge of wings and tail assembly. Every seam and weld should be low resistance tested accordingly. The resistance across seams is best tested using a specially designed fixture that keeps the probes at a fixed distance (Fig. 7). The fixture can be moved along the seam and measurements checked for consistency. Readings that alternately rise and fall are an indication of a poor weld. In cement plants, all electrical components are particularly at risk from the corrosive properties of cement dust, which will attack metal surfaces. For railroads, a significant potential problem is, of course, vibration. Movement of wheels over tracks can weaken the bonds between rails, negatively affecting the communication system that positions the trains and keeps the system running smoothly. On three-rail systems, where Continued on page 16
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FEATURE • Megger
Continued from page 14
the third rail delivers the power to the engine, a high-resistance bond can cause loss of efficiency. A convenient procedure is to measure a five-foot section of track without a bond, and then compare it to a section with a bond. As a convenient rule, these measurements should fall within ±5%. Graphite electrodes are large cylinders up to six feet in length that are used in temperature-controlled industrial processes because they have the unusual property of exhibiting a decrease in resistance with temperature. Low resistance testing is a routine quality control measure to assure uniform density following the extrusion process. Graphite electrode testing is a prime example of the use of a specially designed test fixture in place of generic leads (see Fig. 8). On wind farms, low resistance testing is a must in order to maintain a safe, low impedance path to ground for lightning strikes that will otherwise damage blades. An ohmic measurement can also be used to determine the length of wire remaining
FIGURE 7
on a reel that has been cut. If both ends are accessible, a resistance reading can be compared to the ohms-per-foot specification in order to calculate length. If the Ω/ft spec is unknown, a sample length can be cut off and measured. Note that this is the only technique that will work for single-core (only one conductor) wire. Time domain reflectometry (TDR) will not work on single core because the echo pulse must travel be-
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Electrical Products & Solutions • October 2013
tween two parallel conductors. Older instruments were designed around the necessary parameters described herein and may still be used today with assurance of the measurement’s reliability. Newer models add convenience features that make it easier on the operator or add dimensions to the testing capability. As an example of the former, selectable test modes may enable successive tests by Continued on page 18
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FEATURE • Megger
Continued from page 16
merely make-or-break lead contact. Also available are a continuous mode where readings are updated throughout the course of the test, to reveal heating effects perhaps, and high power modes that enable quick charging of inductive IUTs. An added dimension is exhibited by testers that offer power selection. Some connections in IUTs are meant for low current applications. Use of a high test current can merely blast through surface contamination, appearing to present a “good” test. Switching to low power and comparing can tell more than a single test would. Conversely, contacts can develop rough surfaces. There may be sufficient contact to readily pass at lower power, while switching to higher power can cause heating which will be apparent in a higher measurement. Contacts tested at high power can have oxides blasted off and can micro-weld. This could provide a deceptively low reading. Being able to compare tests at varying powers provides a valuable tool for additional diagnostic capability. Modern testers may also offer field
FIGURE 8
rugged construction, ease-of-operation features, dual battery and line operation, indicator lights for proper probe contact, display warnings and indications of test problems, enhanced safety protection, and storage and downloading of test results. The true low
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Electrical Products & Solutions • October 2013
resistance ohmmeter doesn’t replace the multimeter; it expands the capability to test, analyze and act. ❏ Source of information: Peter E. Langan, A Guide to Low Resistance Testing, Megger® 2005
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Product SPOTLIGHT • AEMC
AEMC’s NEW Clamp-On Ground Testers Model 6416 & 6417
C
lamp-on Ground resistance testing is a trusted test method that has been in use for more than 20 years. AEMC instruments, the leading supplier, pioneered the technology into its present form over these last 20 years. The latest AEMC product introduction, models 6416 and 6417, are the fourth generation of improvements and upgrades and have significant advantages compared to all other clamp-on ground resistance testing products available. These advantages were developed as a direct result of hands-on support and extensive application knowledge from thousands of units in customer use that are employed in a wide variety of applications including the areas of communication, power, mining, industrial and residential ground resistance testing. AEMC’s Clamp-On Ground Resistance
20
Testers, Models 6416 and 6417 have the ability to measure grounding electrode and grid resistance without the use of auxiliary rods or the need to disconnect and isolate the system being tested. There is also no need to de-energize the facility associated with the test. This provides both a safer testing environment as well as elimination of down time for the customer. The models 6416 and 6417 simply clamp around the ground conductor or rod and employing a transmitter/receiver system built into the jaws of the clamp which provides the ability to measure the resistance to ground. By performing measurements on intact ground systems, the user also verifies the quality of the grounding connections and bonds throughout the grounding system that is tested. Resistance and continuity of grounding loops around pads and build-
Electrical Products & Solutions • October 2013
ings may also be measured. Ground loop resistance can often be mistaken for a low resistance good ground. Now the trained user can set an alarm in these new meters that will indicate this condition as a loop resistance both visually and audibly and not a true ground resistance measurement thus insuring that false conditions are not documented as earth grounds. Both models also include a high sensitivity current measurement function. This feature enables measurement of leakage current flowing to ground or circulating in ground loops from as low as 200 microamps to as high as 40 Amps with resolution down to 1 microamp. The resistance measurement range is from 0.01 to 1500 ohms. To assist the operator in decision making, the current and Continued on page 22
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Product SPOTLIGHT • AEMC
rent levels. This alarm feature also permits quick field checks where only “pass” or “fail” readings are required. Yet another unique feature found only in the AEMC product offering is the ability for the operator to select a test frequency, choosing from 50, 60, 128 or 2,083 Hz. This provides significant improvement in the accuracy of readings in environments where inductive values can affect the test result. It also lets the operator see the test results at normal system operating frequencies (i.e. 50 or 60Hz) and run comparative tests with the fall-ofpotential method which is typically conducted at a
frequency of 128 Hz. Both models provide the ability to store time and date stamped test results of all measurements (resistance, current voltage, test frequency and inductance) that can be reviewed at a later time. The model 6416 can store 300 tests while the FIGURE 1
resistance readings are both displayed simultaneously (see figure 1) on the multiline organic liquid crystal display (OLED) screen eliminating the need to run separate tests. This bright display is easily readable in the dark or in full direct sunlight, a feature not attainable on standard LED displays. Additionally it offers wide, 180 degree, peripheral viewing that facilitates reading the test results in areas where the meter is at a difficult viewing angle. Another significant feature is the ability of the models 6416 and 6417 to determine contact voltage at the test point providing a level of safety for the operator not found in other clamp-on ground testers. This voltage is displayed and can also provide an audible signal based on a user programmable alarm set point. Additionally alarms set points are available for resistance and cur-
Continued from page 20
6417 can store up to 2000 tests. The model 6417 also adds wireless Bluetooth communication to a PC, smartphone or tablet PC. Software is provided with the unit and an Android™ platform application is available through normal app store download. This expands the operator’s access to the stored data, real-time measurement, as well as the ability to configure the instrument and enables the user to email or text message the results to others. AEMC’s DataView® software is included facilitating transferring stored data to the PC, real-time display, analysis, report generation and system configuration. The smartphone/tablet PC app provides the ability to see the test results real-time in locations where the meter has to be clamped around a ground conductor in a way that the visual access to the display is not possible, such as in ground wells commonly referred to as flower pots. A side benefit of the smartphone/tablet PC application is the ability to geolocate the test site to include in reports. These feature rich clamp-on ground testers advance the ability to obtain accurate results in today’s demanding environments and employ the most up-to-date way to communicate the results and create reports making the task of conducting ground resistance surveys quick, easy and cost effective. ❏ 22
Electrical Products & Solutions • October 2013
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Industry NEWS
Eaton’s LED Solutions Allow California Facility to Save More Than 50 Percent on Exterior Lighting Costs
Power management company Eaton today announced that its Cooper Lighting division has provided products and solutions to help Industrial Developments International (IDI), a privately held real estate company with offices across the nation, reduce energy costs at its Jurupa Valley, Calif., facility. By utilizing a range of exterior light-emitting diode (LED) solutions, the company will achieve proper illumination while also realizing a total energy savings of more than 50 percent compared to metal halide equivalents. “Our goal with this project was to create one of the first LED warehouse buildings in Riverside County,” said Alan Sharp, senior vice president, IDI. “Working with the solutions from Eaton’s Cooper Lighting division, we were able to do just that, saving on energy and reducing maintenance costs for the future. We’re extremely pleased with the outcome and hope to be a model for success in the industry.” To create a safe environment with a contemporary, cohesive look for its building’s exterior and parking lot, IDI, partnering with design-build contractor, Excellence in Electricity, utilized McGraw-Edison Ventus lumi24
naires. Featuring the AccuLED Optics™ system, Ventus products were able to provide a uniform distribution and scalability to meet application requirements, using fewer fixtures to achieve the desired light levels. At 309 watts, the Ventus LED fixtures were able to generate a light level similar to a 458-watt metal halide equivalent, allowing for a reduced number of fixtures and a savings of more than 50 percent on exterior lighting cost. For wall-mounted applications, the company chose Lumark Crosstour wall pack luminaires. Providing ample and precise illumination with architectural styling, Lumark Crosstour fixtures offer comparable light levels of 175-watt metal halide products, using just 30 total watts. Beyond parking lot and building façade illumination, the company wanted to create a dramatic effect on the building’s exterior. To this end, they installed Invue Vision LED floodlights. Combining energy savings and control options, Vision LED floodlights offer superior optical control and seven unique optical distributions to precisely illuminate and emphasize target applications while eliminating
Electrical Products & Solutions • October 2013
unwanted spill light. Fixtures also feature a 4000 Kelvin (K) correlated color temperature (CCT) to match all other LED products illuminating the building’s facade. “More and more customers are realizing that our LED products are a viable option for a range of indoor and outdoor lighting applications,” said Mark Eubanks, president, Eaton’s Cooper Lighting division. “Making the switch is an even easier decision for our customers once they learn about the reduction in energy and maintenance costs, as well as the long life associated with LED products. By utilizing innovative LED solutions from Eaton’s Cooper Lighting business, the facility was able to satisfy stringent lighting goals that included reducing energy costs while still providing lighting to satisfy safety and security issues. While IDI expects to continue seeing an overall energy savings, the company can also enjoy the added bonus of long life – up to 60,000 hours for select products – and reduced maintenance for all of the Lighting division’s LED products. To learn more about solutions available from Eaton’s Cooper Lighting business, please visit www.cooperlighting.com. ❏
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Industry NEWS
Bonacci to Lead WattStopper Sales Force WattStopper has appointed Bob Bonacci as Vice President of Sales, effective September 1, 2013. In this role, Bonacci will lead the company’s North American sales team. Bonacci comes to WattStopper with 23 years of sales experience in the electrical device industry, including more than eight years with Legrand. During his tenure at Legrand, Bonacci held increasingly senior positions, most recently as Vice President of Strategic Accounts & Sales Productivity. Prior to holding that position, he served as Director of National Accounts. Bonacci came to Legrand from his position as Regional Sales Manager with Lamson and Sessions. “We are delighted to welcome Bob to the WattStopper team. He brings a breadth of experience and knowledge of the industry that is hard to match. Under his leadership, we are confident that WattStopper will continue to
offer the sales support and expertise our customers have relied on for nearly 30 years. At the same time, Bob has the vision to help position our company for future growth and vitality in the rapidly evolving controls space,” notes Dean Pournaras, President. Bob has a BA in Journalism from the University of Massachusetts Amherst and lives in Arlington, Massachusetts with his wife and daughter. He is a member of NAED and the Sales Management Association. WattStopper (www.wattstopper.com), a Legrand group brand, is a leading manufacturer of energy efficient lighting controls for commercial and residential use. We help customers find convenient ways to save energy, meet green initiatives, and comply with energy codes with our comprehensive range of products, programs, and services. Legrand (www.legrand.com ), located in Limoges,
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Electrical Products & Solutions • October 2013
Bob Bonacci, Vice President of Sales at WattStopper
France, is the world specialist in products and systems for electrical installations and information networks, offering solutions for use in residential, commercial and industrial buildings. ❏
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Product FOCUS Introducing a Practical Guide to Electrical Safety from the Training Leader in Electrical Skills American Technical Publishers introduces a new textbook that presents a comprehensive overview of electrical safety in the workplace. Electrical Safety: A Practical Guide to OSHA and NFPA 70E® organizes both OSHA regulations and the NFPA 70E® 2012 standards in an effective design to provide a clear overview of proper electrical safety procedures. The information provided helps learners understand how to reduce risk and avoid electrical hazards in the workplace while still being productive, which makes this textbook a valuable tool for trainers, contractors, safety officials, and electricians in the field. Electrical Safety: A Practical Guide to OSHA and NFPA 70E® covers topics that include electrical hazards, electrical safety programs, approach boundaries, development of job hazard analyses, and methods for choosing and inspecting personal protective equipment (PPE). Recognized as an expert in the electrical field, James R. White shares his knowledge as an inspector, instructor, and representative on several technical committees. Throughout the book, James provides insightful personal experiences that supplement key topics and reinforce the importance of working safely on or near electrical equipment. A CD-ROM is included as a self-study aid for a review of important topics covered in the textbook. Quick Quizzes® provide 10 interactive questions per chapter. An Illustrated Glossary provides a helpful reference to commonly used terms, with selected terms linked to interactive illustrations and media clips. Flash Cards provide a review of terms, definitions, and symbols. Media Clips, which consist of animated illustrations and video clips to reinforce and expand upon the content in the textbook, and a link to ATPeResources.com provides access to additional reference material. For more information, visit www.atplearning.com
Cree Introduces New High Density Class of XLamp CXA LED Arrays Delivers Double the Lumen Density to Enable the Next Generation of LED Spot Lights Cree, Inc. announces the industry’s first High-Density (HD) LED Arrays – a breakthrough technology that doubles the system intensity of spot lights compared to previous arrays. The new HD class of CXA Arrays provide unrivaled lumen density, enabling major reduction in system cost and power consumption. The first HD Array, the CXA1520 LED, enables lighting manufacturers to create a new generation of products that delivers the same intensity and light quality as 39W ceramic metal halide (CMH) at up to 50 percent lower power. “The new CXA1520 LED Array delivers an impressive amount of light from a very small source. I have not seen another integrated array that can match this level of lumen density,” said Mark Groenke, VP of engineering at ConTech Lighting. “The CXA1520 LED Array enables ConTech Lighting’s newest LED fixtures to exceed the efficiency and life of our ceramic metal halide fixture offerings while maintaining intensity and color quality.” The High-Density Cree® XLamp Array extends Cree’s robust CXA family to give lighting manufacturers a single integrated array family to address lighting applications from general purpose floods to specialty retail spot lights. Cree XLamp® CXA1520 LED Arrays deliver up to 3478 lumens at 33 watts, 85°C. Available in ANSI White and four-step EasyWhite® binning, the new Arrays feature 2700K through 5000K CCTs, with 70, 80 and 95 CRI options. “We have several CXA1507 and CXA1512 LED Array designs and we’re excited that the new CXA1520 LED Array shares the same light emitting size as the CXA1507 and CXA1512 LED Arrays,” said Tom Tang, chairman and CEO, Tons Lightology, Inc. “This allows us to address very high output applications without changing the optics.” XLamp CXA1520 LED Array samples are available now and production quantities are available with standard lead times. Please visit www.cree.com/cxa to learn more about the new Cree CXA LEDs. For more information, visit www.cree.com
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Product FOCUS Greenlee® Shotgun™ Shoe Bend Four. Save More. The Greenlee Shotgun Shoe greatly increases productivity by bending up to four pieces of conduit at the same time. The company is first to market with the new design. “The new Shotgun Shoe allows contractors and prefabrication shops using triple nickel benders to bend considerably more conduit than before – increasing productivity and saving time and money,” said Sumeet Pujari, Greenlee Product Manager for Bending and Cable Pulling. “The savings keep adding up - for many contractors and prefabrication shops this investment will pay for itself in less than one year.” The Greenlee Shotgun Shoe is compatible with all current-line 555® electric benders [555CX, 555DX, 555C]. A “nested groove” design allows the shoe to bend up to 8 different types of conduit on the same shoe [Rigid: ½”, ¾”, 1”; IMC: ½”, ¾”, 1”; EMT: ¾”, 1”]. “We chose a nested groove design to allow users to bend more sizes on the same shoe – which means fewer changeovers and even more productivity,” added Sumeet. Other features include an adjustable length indicator and a clear pointer display for consistent bend results. For more information, visit www.greenlee.com
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Product FOCUS
M18™ Cordless 5/8” SDS Plus Rotary Hammer Milwaukee Tool Corporation continues to expand the fastest growing 18V cordless system on the market with the introduction of the M18™ Cordless 5/8” SDS Plus Rotary Hammer. At only 12” long and 5.5 lbs, this new addition to the rotary hammer offering delivers the performance and durability users have come to expect from Milwaukee in a compact size. “Designed with small diameter anchors in mind, this trade-specific solution delivers optimized power and maximum speed to increase productivity in the most common applications,” said Rick Gambaccini, Group Product Manager, Milwaukee Tool. “Users no longer want a cumbersome, one-size-fits-all Rotary Hammer. This solution provides an option to carry a much smaller unit that can handle over 80% of the holes being drilled, while increasing comfort and reducing fatigue during all day use.” Powered by Milwaukee’s revolutionary M18™ REDLITHIUM™ Battery, the M18™ 5/8” SDS Plus Rotary Hammer can drill over 100 ¼” x 1-1/2” holes in poured concrete per charge and is compatible with the entire M18™ System, now offering over 50 cordless Lithium-Ion products. Milwaukee® is committed to the ongoing development of this platform and will continue to provide innovative solutions that offer industry leading reliability, performance and ergonomics. Specifications: 2612-22 M18™ 5/8” SDS Plus Rotary Hammer • 5/8” Max Capacity • 12” Long • 5.5 lbs • 0-1,300 RPM For more information, visit • 0-7,000 BPM www.milwaukeetool.com
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Product FOCUS
Platinum Tools® Debuts PRO-Strike Punchdown Tool Providing Precise, Repeatable, and Reliable Terminations, the new PRO-Strike Punchdown Tool (P/N 13150C) is the Primary Tool for All Telecom and Datacom Installers Working with 110, 66, Krone, and BIX™ – Style Connects Platinum Tools® the leader in solutions for the preparation, installation and hand termination of wire and cable, is proud to announce the launch of the new PRO-Strike Punchdown Tool. Now shipping, the PRO-Strike Punchdown Tool has an MSRP of $36.95 (without blades). “The new compact PRO-Strike Punchdown Tool combines rugged design, an ergonomic comfort grip handle, and enhanced functions,” explained John Phillips, Platinum Tools, Inc. product manager. “The primary tool for all telecom and datacom installers working with 110, 66, Krone and BIX™-style cross connects, this professional tool will provide precise, repeatable, and reliable terminations that helps ensure installations pass certification, thus reducing and eliminating callbacks, resulting in peace-of-mind.” The PRO-Strike Punchdown Tool terminates and cuts Cat3/5/5e/6 cables and is spring loaded for fast, low effort wire seating and terminations. Its bayonet style (twist & lock) blade retention socket is compatible with industry standard tools and blades. For more information, visit www.platinumtools.com
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Product FOCUS New Staco Parallelable 3-Phase UPS is Ideal for 10-40 kVA Applications Double Conversion Technology Boasts 94% Efficiency Staco Energy Products Company introduces the FirstLine® PL – a parallelable three-phase Uninterruptible Power Supply (UPS) for 10-40kVA applications. These units boast efficiencies of up to 94% for lower energy costs and reduced carbon footprint, while delivering maximum availability and flexibility. Compact and reliable, internal batteries allow a smaller footprint, while cooler operation extends internal component life. True on-line, double-conversion technology is achieved through IGBT and Digital Signal Processor (DSP) control, enabling delivery of a high input power factor of 0.99, and a low input current distortion of less than or equal to 1% at full load. All units can be set for 50/60Hz frequency conversion; - 0 models can operate as a precision power conditioner which is upgradable to a UPS in the future. SNMP and MOD-BUS communication, and paralleling circuit are all standard. Each UPS is covered by an industry-leading 2-year warranty and backed by a nationwide service program with optional preventive maintenance to lower cost of ownership. The compact and reliable FirstLine® PL is ideal for information technology (IT) applications such as computer rooms, and network closets, as well as broadcast studios, assembly/manufacturing lines, medical facilities, and other applications where a high level of available power and backup power are essential. As a standard feature, up to 4 FirstLine® PL units can be run in parallel, providing redundancy for mission critical applications or additional capacity, requiring no additional hardware. FirstLine® P requires only front, top or bottom access, minimizing its footprint. Battery run times are best in class. For more information, visit www.stacoenergy.com
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Product FOCUS
Legrand Introduces Recessed Duplex Tamper-Resistant Receptacle Installs on finished walls in standard electrical boxes Legrand, a leading provider of electrical wiring devices and home systems, recently announced the availability of its new Pass & Seymour® Recessed Duplex Tamper-Resistant Receptacle. Safety is a crucial feature of the new receptacle. It allows furniture to be pushed flush to the wall without placing undue stress on power cords. It is also meets the NEC code on tamper-resistance and is both UL and cULus listed. The 15A-125V Pass & Seymour® Recessed Duplex Tamper-Resistant Receptacle is recessed into the wall and keeps all appliance plugs below the wall surface. It is also great for flat screen TVs, kitchen counters, bedrooms and more. “Our new Recessed Duplex Tamper-Resistant Receptacle installs easily in standard electrical boxes on a finished wall,” said Thomas Roy Sr., product line manager, Legrand Electrical Wiring Systems Division. “It provides a simple solution for supplying power to flat screen TVs that have been mounted onto a wall.” It is available in white and is supplied with an integral decorator-style wall plate. For more information, visit www.legrand.us
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Advertiser INDEX This advertisers index is compiled as a courtesy to our readers. While every effort is made to provide a complete and accurate listing of companies, page numbers and reader service numbers, the publisher is not responsible for errors.
Company
PG#
RS#
18 IBC 36 9 34 4 29 40 36 7 26 39 11 34 15 27 30 IFC 16
42 2 51 9 49 6 20 53 52 8 44 25 11 50 13 19 46 1 41
ADVANCED TEST EQUIPMENT AEMC INSTRUMENTS ARPI OF USA BYTE BROTHERS CALIFORNIA TURBO CONDUIT REPAIR SYSTEMS COPPER DEVELOPMENT ASSOCIATION COPPERWATCHER E-Z METER GENERATOR INTERLOCK TECHNOLOGIES GENSCO GPSTRACKIT.COM HB BRACKETS HERCULES INDUSTRIES, INC. HIOKI USA I-GARD CORPORATION KRENZ & COMPANY MEGGER MILLER SAFETY CONSULTANTS, LTD
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Company MILWAUKEE ELECTRIC TOOL MINUTEMAN UPS MITSUBISHI ELECTRIC MP GLOBAL PRODUCTS LLC NABCEP NORTHWEST LIGHTING SYSTEMS PHASE-A-MATIC POWER & TEL RONK ELECTRICAL INDUSTRIES, INC. SIMPLY AUTOMATED, INC. SOKKIA SOUTHWIRE STA-DOWN STEELMAN INDUSTRIES THE HOME DEPOT TOSHIBA INTERNATIONAL CORP UNDERGROUND DEVICES UTILITY METALS YOKOGAWA CORPORATION
PG#
RS#
31 21 19 3 1 33 30 25 37 17 5 BC 40 16 13 23 32 10 35
21 16 15 5 4 22 47 18 24 14 7 3 54 40 12 17 48 10 23
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