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Contents
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06 14 16 18 20 24 26 28 34
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Intelligent Lighting: from definition to implementation
Solar Radiation and Solar Power System Design What information do solar design engineers use to size a system? KVAR EC™: BEST IN CLASS Conergy’s Head of Technology Speaking at InterSolar North America about Photovoltaic Manufacturing Processes It looks safe, but is it?
Cummins Onan Residential Generators. More than you expect.
Victaulic Vic-Press HIOKI POWER QUALITY ANALYZER PW3198 Record and Analyze
NOTIFIER RELEASES BIM FIRE ALARM MODELS NOTIFIER First to Offer Fire Alarm Digital Content for Building Information Modeling (BIM)
PRESIDENT/PUBLISHER Glen Hobson - 205-733-1341 SALES DEVELOPMENT MANAGER Hank Underwood - 205-733-1343 NATIONAL SALES MANAGER Rick Harless - 205-733-1324 CIRCULATION DIRECTOR/WEB DESIGN Jacklyn Hobson CREATIVE DIRECTOR Derek Gaylard ART DIRECTOR David Todd Executive and Advertising Offices 2070 Valleydale Rd, Suite # 6 Hoover, AL 35244 toll free: 866.981.4511 phone: 205-733-1341 fax: 205-733-1344 www.theelectriccurrent.com The Electric Current is distributed free to qualified subscribers. U.S. Postage paid at Birmingham, Alabama and additional mailing offices.
Boge extends range of small screw compressors
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The Electric Current July 2011
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Intelligent Lighting: from definition to implementation Osama Mannan, Technical Marketing Engineer, Future Lighting Solutions
AN INTELLIGENT LIGHTING SYSTEM IS COMPRISED OF A WIDE RANGE OF PRODUCTS THAT IS DEPENDANT ON THE APPLICATION AND ITS REQUIREMENTS. The features in the intelligent lighting system can be implemented with different levels of complexity depending on the location and the requirements of the application. In this article we will look at three implementation approaches and the products that can be leveraged to develop the intelligent lighting system.
Keeping it Simple: Basic and Direct Control A key feature that intelligent lighting control brings to LED lighting systems is dimming. In Indoor applications, the most basic form of dimming can be achieved by using wall dimmers at a fixed location in the room. Standard wall dimmers send different types of signals for controlling the brightness of the LEDs, namely TRIAC, 010V, and DALI, and 12V Pulse Width Modulation (PWM). The dimmer has to be interfaced with an LED driver that supports any of these signals in order to ultimately control the light levels of LED luminaires. There are several dimmable LED drivers available on the market from a number of vendors. As an example, Philips Xitanium drivers offer a broad portfolio of dimmable drivers with various output voltage ranges
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and drive currents to support several LED configurations. Additionally, a simple sensor system can be added to trigger dimming or ON/OFF switching. For instance, a motion detector can be placed in the room to sense presence and send a 0-10V signal to the driver to change the state of the LED fixture from OFF to ON, or vice versa. Alternatively, a DALI-based sensor can be used to broadcast the signal to all the fixtures in the room and trigger the same action. Although communication using DALI can address each fixture and control them individually, a simple implementation of DALI would only require one signal to be broadcasted and initiate control to all the fixtures collectively. The sensors can work with a controller, which can be installed either stand-alone or integrated inside the LED driver. An example of such a system is Philips ActiLume. Combined with a preprogrammed controller, the ActiLume system consists of miniature ambient light and motion sensors that can be set for different modes of operation giving the system more versatility based on the requirements. The ActiLume controller also includes a power relay, which enables ON/OFF switching of the light fixtures. Figure 1 demonstrates the functions of the Philips Actilume system when installed in the luminaire.
The Electric Current July 2011
Figure 1. Philips ActiLume System Controller and Sensors In Figure 1.a, the motion sensor of the ActiLume system detects the absence of movement in the room and sends the command to the controller to turn OFF the lights. Similarly, Figure 1.b shows the ambient light sensor sending the signal to dim the LED luminaire due to the appropriate level of illumination provided by the sunlight. This operation will ultimately lead to energy savings by reducing the power consumption of the luminaires when not required.
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As for a simple implementation of an outdoor application, the use of sensors can be eliminated and a programmable dimming controller can be used to schedule actions. For example, Philips LumiStep dimming controller, which is standalone controller, but has also been integrated inside some LED drivers, provides pre-set dimming modes based on the need of the application. The controller will set the driver to dim for a certain period of time depending on ON/OFF switch points. The dimming options include 6 hour and 8 hour dimming periods depending on the requirements and product selected. A dynamic timer changes the dimming mid point as time passes. Figure 2 shows an outline of the LumiStep controller concept implemented in street light poles. For instance, considering the 8 hour dimming option, the controller will dim the lights by 50% two hours before the midpoint and then go back to full intensity six hours after. This implementation option is commonly known as “2+6”. Depending on when the lights are switched ON and OFF, based on season for example, the dimmer will adjust the midpoint and dim the lights accordingly.
Figure 2. Philips LumiStep Dimming Control A more feature rich dimming control can be achieved using Philips Dynadimmer. This controller, which also can be either inside or outside the driver, sends a 1-10V signal to LED drivers and initiate dimming time and levels based on configurable schedules. The dimming schedule in the Dynadimmer product is set via a programming kit or computer software. Figure 3 shows a Dynadimmer schedule implemented for street lights to follow a specific dimming schedule to ultimately achieve energy savings.
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Figure 4. Wireless control using Figure 3. Philips Dynadimmer Controller Synapse RF Engines In summary, the most basic form of control is to send the control commands directly from one component to the other, such as sensor signals to the LED drivers, without feedback or monitoring capabilities. In this case, there is no need for wireless communication RF modules or metering devices in the system.
Adding a basic level of functionality: Local Wireless Control The basic intelligent lighting implementation can be enhanced in a local network that includes communication between fixtures and controlling them wirelessly. For wireless communication, whether it’s an indoor office using a 2.4GHz band or an outdoor parking lot leveraging sub2.4Ghz frequencies, RF engines integrated into the controllers and LED drivers can enable intelligent lighting features within the local boundary of the application, such as a room, a building, or a parking lot. As a result, there is no wide area network or a need to send data over the Internet. For lighting manufacturers who want to design and develop their own controller, the RF engines or IC’s can be incorporated to the controllers or drivers. Such RF modules are available from Synapse Wireless. By adding some additional circuitry to the system, these RF engines can be configured to provide a digital or analog signal and can interface with many LED drivers to enable wireless control. The use of such RF engines enables more convenient control of light fixtures as well as eliminating the need for additional cable connections between the controller and luminaires. Figure 4 illustrates how a Synapse RF engine can replace the physical link between the dimmer and the LED driver. It should be noted that the extra circuitry required to send the appropriate signal to the LED driver is not shown in Figure 4.
The Electric Current July 2011
For a lighting system to communicate and interoperate seamlessly, the communication modules must share the same protocol or network operating system (NOS). An example of a unified protocol that can be installed in the wireless modules is Synapse’s operating system SNAP®. Since SNAP is a network operating system, it can be installed on multiple microprocessor based platforms such as communication modules from various vendors or 8 to 32bit microcontrollers and radios from multiple IC manufacturers. The SNAP NOS enables a robust mesh network that provides embedded intelligence and secure communication for connecting devices with each other, requiring no setup and minimal application development. It’s also a multi-hopping and self-healing system that supports software update over-the-air. Although developing intelligent lighting systems that directly leverage communication modules provides a high level of flexibility, many lighting manufacturers may not have the required competencies to design custom controller solutions. As a result, these lighting manufacturers require a plug-and-play solution that would seamlessly connect to their existing system and achieve the same wireless control capability. One example of a finished system component that already integrates a communication module is the Synapse SNAP DIM-10. As illustrated in Figure 5, the SNAP DIM10 can be connected to multiple LED drivers, which enables a simple approach to group and control up to 10 luminaires. Furthermore, most dimmable LED drivers do not dim down to 0%, which means that the user cannot directly “switch OFF” the lights. Therefore, the SNAP DIM-10 also includes a power relay that turns off the power to the LED driver at low dimming levels. There are two primary versions of the SNAP DIM-
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10, one that supports 0-10V and PWM dimming signals and the other that supports digital lighting protocols such as DALI. The SNAP DIM-10 can receive the control commands from various sources. As shown in the Figure 5, a wireless wall-mounted dimmer can be used to control the lights from a fixed location. Also, SNAP LightSense, which is an ambient sensors and motion detector from Synapse, would send signals to the SNAP DIM-10 to trigger actions. Additionally, an LCD remote control can be employed to control all the lights connected to the SNAP DIM-10 module within the area of coverage.
in Figure 6b. Finally, if the DMX console is replaced by a computer, the SNAP DMX controller includes a USB port with the appropriate USB-to-DMX conversion capabilities. As a result, third party PC-based DMX software in combination with a SNAP DMX controller can be leveraged to send wireless DMX signals to other SNAP DMX controllers, as shown in Figure 6c. Synapse has also developed a compact wireless device with a USB interface called SNAP Stick, which is the same size as a standard USB memory stick. SNAP Stick enables plugand-play wireless control from the computer to the SNAP DMX controller, since both communicate using the SNAP operating system.
for corrective actions. Communication via the Internet makes it possible to control fixtures without the need to be near the physical location of the lighting installation. This gives more flexibility to the lighting system and the convenience of controlling the lights from anywhere. Synapse’s SNAP Wireless Site Controller interfaces with other Synapse modules that use the SNAP network operating system and connects them to the Internet. As shown in Figure 7, the Site Controller gathers data from all SNAP-enabled modules, where a user can monitor a single or multiple lighting installations via a standard Web browser. The Site Controller can also send commands from the Internet to multiple SNAP DIM-10 modules, to enable dimming, luminaire grouping, and scheduling for the lighting system.
Figure 5. Synapse SNAP DIM-10 module connected to multiple drivers and fixtures Besides the standard dimming control signals, such as 0-10V, DALI, and 12V PWM, intelligent lighting can be achieved via the DMX 512 protocol. One drawback of a DMX system is that it requires a great deal of cabling to control several light fixtures spread apart at different locations. Consequently, implementing DMX control wirelessly could significantly simplify the installation of the lighting system. Wireless DMX control can be accomplished using Synapse’s SNAP DMX controller, which enables wireless communication between a standard DMX console to existing DMX 512 installations without the need to modify the original equipment. The SNAP DMX controller can be leveraged in various ways. As shown in Figure 6, the module can provide a completely cable-free implementation by connecting a module to each fixture and communicating wirelessly, as in Figure 6a. Another method is implementing a hybrid system which connects the DMX console to one SNAP DMX controller that communicates wirelessly to another controller connected to the first DMX lighting fixture. Other DMX fixtures are then physically wired together from the first fixture as they would for a traditional DMX installation, as shown
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Figure 7. Communication using Synapse SNAP Site Controller gateway
Figure 6. Synapse DMX implementations All the components mentioned serve a local network of control that does not go beyond the application boundaries. That is, no wide area communication is established via the Internet, a cell phone network, or remotely via a monitoring base.
Comprehensive solutions: Wide Area Control Implementing intelligent lighting on a larger scale allows for full control over the lighting system from multiple locations and enables comprehensive monitoring capabilities. These systems are designed to be scalable with the ability to add locations and metering functionalities with feedback
The Electric Current July 2011
Furthermore, taking measurements of parameters such as current, voltage, and power factor adds monitoring and energy metering capabilities to the system, which enhances energy management options. This information can be relayed to the Internet via the Site Controller and stored to a database where reports can be generated or immediate actions can be triggered if necessary. Additionally, energy metering methods can be used in the system. Synapse’s SNAP GridSense, which is integrated to the SNAP DIM-10 captures and sends the energy metering data to the Internet via the Site Controller gateway. A complete hardware system solution is presented in Figure 8. The system makes use of all the components needed for a comprehensive intelligent lighting system. In the figure, sensors send signals to SNAP DIM-10 modules that trigger actions in the LED drivers to initiate actions in the light fixtures. The integrated SNAP GridSense measures current and voltage for energy
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metering purposes. This entire local network connects through the Internet to remotely monitor the system performance and send out actions accordingly.
Figure 8. Complete hardware system solution
The implementation of intelligent lighting can include different components with different levels of complexity depending on the application and required features. This type of arrangement enables control and monitoring of fixtures in groups. That is, the SNAP DIME-10 with GridSense will take measurements from all the fixtures connected to it as a whole, and not for individual light fixtures. Similarly, all the light fixtures connected to one SNAP DIM-10 module can be controlled collectively and not separately. This approach allows for the amortization of the cost of the intelligent lighting components across multiple luminaires in order to accelerate payback. However, if there is a requirement to control and monitor each and every luminaire, intelligent LED drivers that incorporate the energy metering and control capabilities is the most cost effective and flexible approach. Not only does this approach enable better control, it also minimizes the number of components, which greatly improves the system from an efficiency and cost perspective. Philips is developing a family of intelligent LED drivers that incorporate the en-
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ergy metering and control functionalities provided by the components in Figure 8. These fully programmable LED drivers support dimming control using 0-10V and DALI and accept universal input voltages. They also have an integrated Dynadim control for timed dimming schedules. For luminaire manufacturers that want to provide constant light output over time, these drivers also allow the luminaire manufacturer to program a curve that will automatically increase current over the lifetime of the luminaire to offset the LED lumen depreciation. The driver also collects diagnostic data such as voltage, current, and temperature. All these control and monitoring capabilities in the driver can be accessed via the DALI protocol. As a result, the DALI version of the SNAP DIM-10 can set the drive current and driver dimming level as well as read all the diagnostic data in the driver in order to send the data over the Internet via the Synapse SNAP Wireless Site Controller gateway. Figure 9 shows how the Philips programmable driver can connect to fixture-based DALI-compatible Philips ActiLume sensors and replace multiple components, thus simplifying yet enhancing the system.
The lighting system monitoring and control from the Internet is achieved by using a standard web-based software that provides the user with full control over the system regardless of the location or control device used. Figure 11 shows an example of an application layout from which the user can set different control criteria to each section and assign different actions accordingly. The lights can be individually controlled or as groups of luminaries, where sophisticated schedules and scenes based on seasons or holidays can be incorporated. The software can also be used for commissioning the lighting system and allocate functions and rules to the light fixtures based on their role and location. Alternatively, basic commissioning can be achieved by using the remote control at the lighting installation location.
Figure 11. Web-based software for commissioning and control via the Internet Figure 9. Complete system solution with Conclusion Philips programmable driver The implementation of intelligent lightHowever, the ultimate goal is to have a completely wireless system that involves minimum amount of wiring yet provides complete control over the system. Figure 10 shows an intelligent LED driver that incorporates wireless communication with sensors, controllers, and switches allowing for complete wire-free communication and control with a link that runs all the way from the light fixture to the Internet.
Figure 10. Complete wire-free communication and control system
The Electric Current July 2011
ing can include different components with different levels of complexity depending on the application and required features. The solutions presented in this article are either already available or will soon be accessible in the coming months. Whether the system is implemented with the most basic components for simple dimming and sensing, or incorporating more functionality such as energy metering and wireless sensor interaction, an intelligent control system takes lighting design a step further and allows for the development of lighting products that enhance the energy saving and performance value proposition of solid state lighting. For more information our intelliegnt ligting platform, please visit our website at www.FutureLightingSolutions.com/controls.
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Solar Radiation and Solar Power System Design
What information do solar design engineers use to size a system? By Bruce Gould, Director of Industrial Sales, SunWize Technologies Solar radiation databases tell us how many peak hours of sun a specific site is expected to receive each day. From that information, we can determine how much energy a solar array will produce at that site. Other information to be considered involves the adjustment of the solar radiation received on a flat (horizontal) surface versus a tilted surface. Solar arrays are almost always installed at a tilt angle to maximize the energy received during the “worst-case” month of the year (December for our Houston example). Maximizing the worst-case radiation minimizes the solar array size and the system cost.
SOLAR RADIATION IS THE ENERGY THE EARTH RECEIVES EVERY DAY AS PHOTONS OF LIGHT TRAVEL THROUGH SPACE FROM THE SUN TO THE EARTH. For a standard unit of measure, the solar industry calculates the radiation on a 1 square meter piece of earth, at noon on a clear day with the sun directly overhead, as 1000 watts or 1 kilowatt (1kW). The solar industry refers to this calculation as one “peak sun”. That same radiation, over the course of one hour, is called one peak sunhour. This definition comes in handy when you consider the total energy received on a 1 square meter area for the duration of one day. If you measure the energy, you can equate that to some number of SunWize® Power Ready System drawing showing a 60° array tilt angle. kilowatt-hours per day of energy received, also called “peak sunhours per day”. For example, Houston, Texas receives 2.3 peak The adjustment from horizontal energy captured to tilted energy sunhours per day in December and 5.9 peak sunhours per day in captured comes from a geometric analysis using direct, diffused June. and reflected components of radiation. For example, the 2.3 sunhours per day received in Houston on a horizontal surface in December becomes 3.7 sunhours per day when the array is tilted at 50 degrees. Our analysis of solar radiation is now complete. To summarize, solar industry engineers consider the following information in order to size a solar power system: • Peak sunhours/day for a particular location. • What power a particular manufacturer’s modules are capable of producing when exposed to one peak sun. • The PV array tilt angle adjustment to maximize energy received on the array surface. • How much energy a customer’s load equipment requires during one day of operation. By combining the above factors, we are able to accurately size a solar module array to ensure it will produce a sufficient amount of energy to keep the load operational year round. ❑
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Case Study
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KVAR EC™: BEST IN CLASS WHEN IT COMES TO ENERGY EFFICIENCY AND POWER FACTOR OPTIMIZATION DEVICES, KVAR ENERGY CONTROLLERS (KVAR ECS™) ARE THE BEST IN THEIR CLASS. KVAR Energy Savings, Inc. (KVAR) has been in business since 1992 and has a long running reputation of support and standing behind its product, the KVAR EC™, with great success stories. KVAR ECs™ are power factor (PF) optimization devices designed for electric utility customers to reduce their energy consumption (kWh), lower KVA demand, optimize PF for inductive loads, reduce electric losses and decrease carbon footprints. KVAR ECs™ are a most effective energy efficient measure and a wise investment that will preserve our natural resources and foster your electricity is billed and your type of a sustainable environment. electrical maintenance program. Through sales channels spanning mulWHY ARE KVAR ECS™ tiple business sectors, KVAR ECs™ are THE BEST IN THEIR CLASS? making a real difference in reducing enWithout KVAR’s patented method, ergy costs in national and international there is absolutely no reason why any- markets. The KVAR ECs™ are UL, CSA one should buy, sell or install a device and CE listed, as well as RoHS certified. KVAR ECs™ are not one size fits all like the KVAR EC™ in their electrical system. The use of KVAR’s sizing appa- devices. Each unit is properly sized and ratus, procedure, and specified energy custom units are built to suit each concontrollers is the only PF optimization sumer’s needs and to meet and exceed device technology solution able to opti- the National Electric Code (NEC). Also, mize PF on-site by tuning the electrical 100% of the units sold in America are system in real time, from the inductive built with pride and tested in KVAR’s equipment back through the electric Daytona Beach, FL manufacturing plant. KVAR Distributors are the only distribuutility meter so that demand on the electric grid, energy consumption, electrical tors authorized to use the patented method system losses and carbon footprints are and apparatus to determine the exact reduced, and operations are stream- amount of capacitance for what is needed lined. This KVAR patented apparatus to optimize PF in homes, businesses and and procedure provides real time on-site individual motors. Today, there are several knock-offs 100% PF correction to the unity level, i.e. and counterfeit products in the market 1.0 PF. KVAR ECs™ reduce electric bills by attempting to mirror the success of 6% to 10% for residential, commercial KVAR ECs™, but those imitation prodand industrial loads, depending on how ucts only confirm the effectiveness of
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The Electric Current July 2011
Through sales channels spanning multiple business sectors, KVAR ECs™ are making a real difference in reducing energy costs in national and international
markets. KVAR ECs™ because only products that work are copied. However, the KVAR EC™ is the original, quality energy controller, and KVAR holds the related patented technology. Finally, by using KVAR ECs™ or becoming a part of KVAR, one can become part of the global “green” movement by decreasing electrical consumption and carbon footprints. ❑ For more information on our products and services or how to become a part of KVAR, please view our website at www.kvar.com, or contact our office at (386) 767-0048.
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Industry News
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Conergy’s Head of Technology Speaking at InterSolar North America about Photovoltaic Manufacturing Processes
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r.KarlHeinzKuesters presenting on best practices in cost reduction and technology optimization Denver, Colorado, July 7, 2011 – Dr. Karl Heinz Kuesters, Head of Technology at in Germany, will be presenting in a session about performance enhancement and cost reduction in Silicon based cell and module technology at the InterSolar North America conference. As Head of Technology and overseeing Conergy’s state-of-the-art, fully-automated and vertically-integrated manufacturing facility, Mr. Kuesters has unique insight into the development of manufacturing processes that optimize technology and reduce costs. Dr. Kuesters presentation will focus on the main technology trends, performance enhancement measures, the effects of integration in the manufacturing process and the tradeoffs between system efficiency and system cost. Mr. Kuesters said, “Cost reduction in the production of silicon based modules, both in raw material and in the manufacturing process, is a growing trend. While it is important to offer competitively priced products, it can not be done at the expense of quality and durability. At Conergy, we use integrated manufacturing and highly-automated systems to ensure quality in the race for cost reduction.” Mr. Kuesters will be speaking Tuesday, July 12th at 2:00 PM at the InterSolar NA conference at the Moscone Center in San Francisco. Responsible for technology development at Conergy, Dr. Kuesters develops higher-efficiency, lower-cost cell and module technology, manages product development, technology integration and R&D initiatives in cooperation with external institutes and funding programs. Conergy’s state-of-the-art, vertically-integrated and fully-automated manufacturing plant in Frankfurt (Oder) was launched in 2007. The plant manufactures solar modules from the silicon ingot stage to a finished module, which provides Conergy improved quality control and insight into module optimization. This insight into full system optimization, allowed Conergy to develop the 3busbar cell design, which optimizes the entire module, compared to the 2-busbar cell design which optimizes the cell’s efficiency, but decreases the module’s yield. This innovation is being adopted in the industry. Producing the , Conergy’s premium solar energy module, the 250 Megawatt manufacturing facility includes 24 wafer
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The Electric Current July 2011
saws, 4 cell production lines and 5 module production lines. Due to increased quality controls, high-quality components and lack of human-error, the Conergy PowerPlus solar module offers increased durability and lifetime yield. About Conergy North America Around the world, only Conergy delivers solar energy systems from a single source. As a system manufacturer, Conergy produces all components for a solar installation and offers all services under one roof. With its modules, inverters and mounting systems, the solar expert creates Conergy System Technology, which is efficient and synchronized solar energy systems for private or commercial rooftops, as well as for multi-Megawatt Parks. Conergy System Sales brings Conergy premium products to nearly 40 countries. The solar expert supports homeowners, installers, wholesalers and investors in their efforts to “go solar” through deep-rooted local operations in 40 countries. With sales activities on five continents, Conergy has close relationships with all its customers. Listed on the Frankfurt stock exchange, Conergy employs more than 1,700 people worldwide. Since Conergy’s founding in 1998, it has produced and sold more than 1.5 GW of clean solar power.
Conergy System Sales brings Conergy premium products to nearly 40 countries. Conergy’s Solar Large Projects Group delivers a “Worry-Free Package” for Conergy solar installations. Conergy’s experts manage the planning and financing, project installation and implementation, system monitoring, operation and on-going maintenance for turn-key solar projects to achieve maximum performance. Through its acquisition of well-established local companies, Conergy began operating as a distributor and project developer in North America in 2005 and currently has five offices, four warehouses and three production sites in the region. Conergy manufacturers mounting systems in Sacramento, CA. In Ontario, Canada Conergy produces modules and mounting systems that meet local content requirements for the Provincial FIT. Conergy offers innovative products and tailored services to their North America network of system integrators and project developers.Through these activities, Conergy maintains expert knowledge about local market conditions and requirements. ❑
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IT LOOKS SAFE, BUT IS IT? We all know milk expires, but what about your safety tools? Do you know the expiration date on your safety products? A worker’s safety on the jobsite is dependent on the ability of the worker to work safely and trust in the safety products that are employed. Many workers, no matter what occupation, have safety guidelines and procedures to keep them safe. Safety products have been utilized to better protect a worker so they can get the job done correctly, efficiently and most importantly, safely. With all these safety products in the world today comes numerous standards and regulations that must be met and followed when workers are required to be placed in dangerous situations to complete a job; hence, the certification of products. Certified safety products allow workers to perform their duties efficiently and confi-
tects both the worker and the company. The worker can confidently perform his/her job, and the company can be selfassured that the task at hand is being completed correctly. With all the standards and regulations these days, there have been countless safety products that are available for numerous situations. The use of safety products could range anywhere from entering a confined space using an ANSI compliant manhole guard retrieval system, or having fall protection using a composite fall arrest tower anchored to an I-beam on top of an electrical transformer. When you or someone else’s life is dependent on dently. But how long do these certifications certain products or equipment, making last? With such a high level of importance, sure that it is correct working order is of the the recertification of safety products is a utmost importance. With new standards and regulations bepractice that should not be forgotten. The use of certified safety products pro- ing written and revised constantly, new
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products are being created or evolving to meet those new conventions. Depending on the level of danger or complexity, some products may require more attention than others. It is important to identify which products need to be recertified and which do not. The recertification process can catch small issues before they become a major disaster. Products may need to be recertified due to age or amount of normal wear and tear. There should be a set routine for checking and ensuring the prod-
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ucts integrity and full dexterity of its capability. Recertifying a product may not always mean repairing a broken part or missing component. The product may just need routine maintenance to keep it performing at its full potential and functionality while maintaining its level of reliability. Visible problems with safety equipment can range from broken welds to deformations in the metal itself; however, it is imperative to get safety products recertified because not all issues or prob-
CIRCLE 15 ON READER SERVICE CARD & VISIT www.springercontrols.com
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The Electric Current July 2011
lems can be seen with the naked eye. For example, when the safety product is mechanical with moving parts, like a personnel hoist, it is very important to get these inner workings of the hoist inspected. In common cases involving hoists or winches, the equipment would likely include a hoist line (cable), gears, brakes, etc. These components can be compromised by over usage, improper usage, improper storage, chemical exposure, etc. In most cases, the products just need a routine check up and maintenance by having the components of the hoist be re-lubricated or brakes replaced. There are certain areas that an untrained person should not attempt to do visually. It may be best to have the equipment recertified under the original manufacturer, or under an approved dealer of the manufacturer. Recertifying equipment can avoid major problems which can cause injury or even death caused by a missed routine maintenance. The use of safety products is allowing us to expand our vertical limits. Whether it is building enormous structures stretching for the sun, or descending into the depths of manholes toward the center of the earth, a worker’s trust in their products could mean the difference between a job succeeding or not. Certifying a safety product ensures the well being of the worker and the workers around them. It is up to the user to ensure that their equipment can perform and maintain standards in which it was originally intended to do. Internal deficiencies may impose greater concerns and problems than external signs. The product must be routinely examined, tested, and recertified by a qualified technician if not the original manufacturer themselves. The ability of the user is somewhat limited to the capability and the functionality of the user’s equipment. The common phrase “If it isn’t broke, don’t fix it” comes to mind. This is not the case when it comes to safety. Ensuring that there is not a problem of fixing a problem before it turns into a major catastrophe is the safest thing one can do. Recertification of safety products is as important if not more important as using a completely new certified product. ❑ About author: Andrew Chau is the lead safety design engineer at T.A. Pelsue Company. T.A. Pelsue has over 40 years of experience in the telecom and industrial safety fields. Andrew can be reached at andrewc@pelsue.com
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CIRCLE 16 ON READER SERVICE CARD & VISIT www.phase-a-matic.com
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+ Cummins Onan Residential Generators
More than you expect.
ummins Onan has long been know in the Commercial and Recreational Vehicle generator market, but is making a big impact on the Residential Standby market. With the introduction of the RS20A, in June of 2010, consumers are taking notice. The new air cooled product was designed to ensure that households throughout North America will have a generator that exceeds standard offerings. Many cities and counties are implementing maximum property decibel levels. Cummins Onan focused extra engineering on designing the quietest generator in its class. This unique design, with fresh air entering the generator through the lid, also reduces the risk of poor air flow (leading engine stalling or over heating) due to debris or snow accumulating along the sides of the generator where traditional generators draw air flow. The Cummins Onan air cooled generators run on either natural gas or LP and come standard with: • Email notification
C
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The Electric Current July 2011
• Remote monitoring via the internet • Patented all climate enclosure • Durable installation pad so no concrete slab required • Easy maintenance access • In-home display • Five-year, 2,000-hour warranty • Cold or warm climate versions Cummins Power Generation has been providing dependable solutions for all power needs since 1920. Cummins comprehensive line of residential generators range from 10kW to 100kW. In addition to a strong heritage of quality, Cummins is also committed to providing products that minimize their impact on the environment. For more information, visit: www.cumminsonan.com
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CIRCLE 17 ON READER SERVICE CARD & VISIT www.legrand.us/cablofil
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+
Victaulic Vic-Press ic-Press is the first ANSI Schedule 10S pipe-sized press-toconnect system. It is an industrial-grade solution for quickly and reliably joining small-diameter piping systems. “Industrial-grade” is the primary differentiator between Vic-Press and other press systems. Competitive products typically use light-wall tube, which is a specialty product. Vic-Press is used with off-the-shelf Schedule 10S stainless steel pipe, which offers increased strength and durability compared to light-wall tube, and eliminates the need to stock the specialty product. The pipe-wall thickness of ANSI Schedule 10S pipe is up to double that of light-wall tube, and as a result, Vic-Press offers a superior life cycle and up to: • Three times the end-load performance • Twice the bend-load performance • 52 percent increase in available flow
V
The Vic-Press system requires 70 percent fewer man-hours than welding to install,and significantly reduces rework. Unlike welding, no
flame or arc is required
during installation, reducing risk to workers and surroundings.
kets, suitable for services up to 210 degrees Fahrenheit. Alternative sealing materials are available for services up to 250 degrees Fahrenheit. Vic-Press is ideal for a number of wet and dry industrial and commercial applications, including potable water, oil, compressed air, lubricated air, noncombustible gases and general chemical services.
For more information, visit: • 23 percent reduction in pressure drop per 100 linear feet of pipe www.victaulic.com compared to tube-sized systems The Vic-Press system requires 70 percent fewer man-hours than welding to install, and significantly reduces rework. Unlike welding, no flame or arc is required during installation, reducing risk to workers and surroundings. With pressure tolerances up to 500 psi, Vic-Press exceeds ANSI class 150 standards. Vic-Press meets ASME B31.1, 31.3 and 31.9 support requirements. The system is also ANSI/NSF 61 certified for potable water up to 180 degrees Fahrenheit. Vic-Press is available for ½ to 2-inch Type 304/304L and Type 316/316L pipe. Vic-Press products feature Grade “H” HNBR gas26
The Electric Current July 2011
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CIRCLE 18 ON READER SERVICE CARD & VISIT www.icuee.com
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+ HIOKI POWER QUALITY ANALYZER PW3198
Record and Analyze Power Supply Problems Simultaneously with a Single Unit odel PW3198 has just been released and is now available as the newest member of the HIOKI power quality family. The PW3198 leads the way as the New World Standard for power quality analysis. The number of power supply problems is increasing as power systems are becoming more and more complicated due to the rising use of power electronic devices plus a growing base of large systems and distributed power supplies. The most efficient way to approach and resolve these problems is to understand the situation quickly and accurately. The PW3198 Power Quality Analyzer is ready to effectively determine your power supply problems. The PW3198 is ideal for troubleshooting. Understand the actual power situation at the site where the problem is occurring. Enables the user to troubleshoot solar and wind power generation systems, electric vehicle charge stations, smart grids, tooling machines, OA equipment (e.g. computers, printers and UPS), medical equipment, server farms, and electrical equipment (e.g. transformers and phase-advancing capacitors). The PW3198 allows the user to manage the parameters with a control set point, such as a voltage fluctuation, transients, flicker, power factor, unbalanced loads and harmonics. Perform load surveys to study the power consumption and confirm system capacity before adding any additional load. The features and benefits of the PW3198 are plentiful including: Easy setup function with presets, ability to verify settings and connections before testing, CAT IV 600V, detect voltage transients up to 6kV with 2MHz sampling, operates up to 3 hours on battery during power loss and restarts measurement upon power restoration, password security, GPS time synchronization (through an external device), measure at a power line frequency of 50/60Hz as well as 400Hz, incorporates both USB and LAN capability, includes a 2GB SD Card for recording up to 55 weeks and 55,000 events (also supports SDHC cards up to 32GB), measure high order harmonics, inrush current and watthours, conduct off-site remote control using a wireless LAN router, analyze recorded data with optional software 9624-50 REV.2 PQA-HiVIEW PRO, and meets International Standard IEC61000-4-30 Edition 2 Class A. The PW3198 can measure all waveforms of power, harmonics and error events simultaneously. When a problem occurs with the equipment or system on your site, the PW3198 will help you detect the cause of the problem quickly and easily. You can depend on the PW3198 to monitor all aspects of your power supplies.
M
The most efficient way to
approach and resolve these problems is to understand the situation quickly and accurately. The PW3198 Power Quality Analyzer is ready to effectively determine your power
supply problems.
For more information, visit: www.hioki.com
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The Electric Current July 2011
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CIRCLE 19 ON READER SERVICE CARD & VISIT www.kvar.com
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CIRCLE 23 ON READER SERVICE CARD & VISIT www.cable.alcan.com
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CIRCLE 21 ON READER SERVICE CARD & VISIT www.udevices.com
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CIRCLE 22 ON READER SERVICE CARD & VISIT www.bierermeters.com
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CIRCLE 20 ON READER SERVICE CARD & VISIT www.powersight.com
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+
NOTIFIER RELEASES BIM FIRE ALARM MODELS NOTIFIER First to Offer Fire Alarm Digital Content for Building Information Modeling (BIM)
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The Electric Current July 2011
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OTIFIER by Honeywell (NYSE: HON) announces the release of digital content models of its most popular ONYX Series fire alarm control panels for Architects, Engineers and Consultants utilizing BIM to create digital models of a building’s design and construction. “We’ve seen a dramatic increase in requests for BIM content of our fire alarm equipment,” says David Correia, product manager for NOTIFIER. “This initial release is just the first in a series of models we’re planning to publish in the near future.” NOTIFIER’s Drawings Webpage of BMP graphics, SXF and DWG Computer Aided Design (CAD) drawings and BIM models experiences an average of 3,100 downloads per month. Although just released, NOTIFIER’s BIM files have already encountered nearly 1,000 downloads. McGraw-Hill Construction reports less than three percent of new construction projects utilized BIM in 2007. Today, BIM is being used in the design of an estimated 38% of new starts, a figure McGraw-Hill expects to double to nearly 75% by 2014. “BIM is quickly becoming the gold standard by which firms do work,” says Steve Jones, senior director of business development, McGraw-Hill Construction. “It’s a notable differentiator among competitors, a time-saver, and a costreducer. BIM dramatically shifts businesses’ productivity and ROI. This is why we are seeing such rapid growth.” Traditionally, the design and placement of all elements involved in a building’s construction have been drafted in static, two-dimensional drawings using CAD software. To create a virtual, three-dimensional mock-up of a building, BIM pulls information (digital content models) from a database on the properties of each building component. The results of BIM are better estimations, collaboration and construction accuracy combined with reduced rework in the field. Visit www.notifier.com for more in-depth information on its extensive portfolio of life safety systems solutions. Contact a local NOTIFIER representative to setup a free, one-on-one presentation on specific fire alarm, emergency communications or other life safety technologies. Notifier, part of the Honeywell (NYSE: HON) Fire Systems group, is the largest manufacturer of engineered fire alarm systems with more than 400 authorized distributors worldwide and regional support operations on every continent. Notifier’s extensive fire alarm, life safety and mass notification offerings include standalone, networked and integrated solu-
N
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tions, plus graphic interface monitoring systems for facility managers and first responders. Visit www.notifier.com for more detailed information. Honeywell International (www.honeywell.com) is a Fortune 100 diversified technology and manufacturing leader, serving customers worldwide with aerospace products and services; control technologies for buildings, homes and industry;
automotive products; turbochargers; and specialty materials. Based in Morris Township, N.J., Honeywell’s shares are traded on the New York, London, and Chicago Stock Exchanges. For more information, visit: www.honeywellnow.com
CIRCLE 24 ON READER SERVICE CARD & VISIT www.surgepure.com
The Electric Current July 2011
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+
The SunWize
Difference
unWize Technologies offers electrical contractors the largest selection of high-quality solar products and components available as well as pre-engineered, packaged residential and commercial solar systems. With over 20 locations throughout North America and two distribution warehouses - one on each coast, our customer support is the best in the solar industry. Since 1992, SunWize Technologies has been a global leader in solar distribution and manufacturing. We operate manufacturing and distribution facilities on the East and West Coasts and sales offices throughout North America. Our expertise includes off-grid, battery backup and grid-tie solar power. As one of the original US pioneers in the solar industry, SunWize has grown into a premier provider of solar energy solutions. Today, we are
S
CIRCLE 25 ON READER SERVICE CARD & VISIT www.solarpathfinder.com
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The Electric Current July 2011
backed by the reputation and stability of Mitsui & Co. (U.S.A.), Inc., a worldwide trading company in over 91 countries. Our commitment to your success in the solar industry extends to the training seminars we offer throughout the year. Our solar energy seminars feature representatives from our solar product vendors to keep you informed on product features. For more information, visit: www.sunwize.com
CIRCLE 26 ON READER SERVICE CARD & VISIT www.arpiusa.com
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CIRCLE 27 ON READER SERVICE CARD & VISIT www.cementexusa.com
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+
Boge extends range of small screw compressors oge America, Inc. has recently extended the popular CL series range by introducing 10 and 20 HP models. The new models embody all the advantages gained from the existing range; very low sound levels, maintenance friendly construction and a small footprint making them the ideal choice for the smaller industrial user. The CL series from Boge has long since been a popular choice with the smaller industrial compressed air users such as workshops and garages where these small and quiet screw compressors have been the ideal solution. Boge has now expanded the CL series range by introducing two new models, the Boge CL 10 and CL 20 which extend the power band on this range up to 20 HP. The CL Series is noted for its very low sound levels, high performance damping and lamellar graphite casting ensure highly effective silencing producing sound levels as low as 59 dB(A), making it ideal for point of
B
CIRCLE 28 ON READER SERVICE CARD & VISIT www.steelman.com
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The Electric Current July 2011
use applications as well as a premium OEM choice. The compact design further ensures a small footprint providing a space saving solution ideal for the workshop environment where space is at a premium. All components and parts are easily accessible from one point allowing service and maintenance work to be carried out in a hassle-free manner. The Boge CL series has always offered great value for the money and has already proven to be a winner in its class where reliability and longevity are prerequisites for the end users. The new CL series models are available in the standard pressure of 150 PSI. Output capacities range from 11 – 77 cfm, motor power 4 to 20 HP. For more information, visit: www.boge.com/us
CIRCLE 29 ON READER SERVICE CARD & VISIT www.philips.com/bodine
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CIRCLE 30 ON READER SERVICE CARD & VISIT www.dexterchaney.com
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Advertisers Index
1:45 PM
+
Company Name
Page Number Reader Service Number
Website
AET Energy
21
14
www.aetenergy.com
ARPI
36
26
www.arpiusa.com
California Turbo
IBC
31
www.californiaturbo.com
Alcan
Bierer & Assocates, Inc. Cementex
Cert-In Software Software Systems, Inc. Conduit Repair Systems
Cummins Onan Generators Dexter + Chaney
Future Lighting Solutions Hioki USA ICUEE
Jonas Software Krenz-Vent KVAR
Lapp USA
LEDtronics
Legrand/Cablofil NABCEP Pelsue
Phase- A- Matic
Philips Emergency Lighting
Solar Pathfinder AET Energy Springer Controls, Inc. Steelman Industries
Summit Technologie, Inc. SunWize
SurgePure
Underground Devices, Inc. Utility Metals Zistos
40
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The Electric Current July 2011
30
32 37 9
23
22 27 7
www.cable.alcan.com
www.bierermeters.com www.cementexusa.com www.certin.com
11
8
www.conduitrepair.com
39
30
www.dexterchaney.com
19 13 5
12 9
5
www.powertoecs.com
www.futurelightingsolutions.com www.hiokiusa.com
27
18
www.icuee.com
20
13
www.krenzvent.com
IFC 29 1 3
1
19 2 4
www.jonasconstruction.com www.kvar.com
www.lappusa.com
www.ledtronics.com
25
17
www.legrand.us/cablofil
17
11
www.pelsue.com
38
29
www.philips.com/bodine
2
23 36 22 38 33 7
3
16 25 15 28 20 6
www.nabcep.org
www.phase-a-matic.com www.aetenergy.com
www.springercontrols.com www.steelman.com
www.powersight.com www.sunwize.com
35
24
www.surgepure.com
BC
32
www.utilitymetals.com
31 15
21 10
www.udevices.com www.zistos.com
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CIRCLE 31 ON READER SERVICE CARD & VISIT www.californiaturbo.com
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CIRCLE 32 ON READER SERVICE CARD & VISIT www.utilitymetals.com