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Surface Raceway - Hinged Raceway
Surface raceways are enclosed channels made from metallic or nonmetallic materials designed to hold and protect cables or wires in distribution runs along walls and ceilings. They can serve to supply power outlets, lighting, communications (low-voltage)outlets, and fire protection cable. Several types of metallic and nonmetallic raceways are available, with variations in rigidity and flexibility, inside diameter, compartmentalization, and other characteristics.
Increased Demand for Data Centers
The overall commercial construction market may remain weak for some time, but interest in new data center space is set to grow rapidly. Growing reliance on web-based media distribution, along with “cloud” computing designs beginning to move software applications from individual desktops to remote servers make data centers one of the construction industry’s few bright spots. Efficiency is driving the design of these energy-intensive structures, and contractors need to be aware of a number of key targets for reducing data center electricity demand.
Harmonics Mitigating Transformers
Harmonics have spiraled in recent years because of the increased use of sophisticated controls and modern electronic equipment in a wide range of installations. They can cause power quality problems and waste energy dollars. Businesses, educational facilities, telecommunication industries, manufacturing plants, healthcare facilities and others that want to operate with high power quality and minimized energy costs are increasingly interested in combating harmonics in order to eliminate problems associated with them.
Ultra Energy Efficient Transformers
The minimum standard for energy efficient transformers is TP1 but the market recently has embraced transformers that take advantage of improved transformer design and are capable of delivering yet higher efficiencies. Suitable for many applications, they are available from multiple transformer manufacturers in several capacities, ranging from 15 to 300 kva.
Changing Commercial Lighting Requirements
Lighting requirements for commercial buildings have become more complex. Various lighting standard groups have proposed more electrical efficiency in lighting. The government took those proposals and is giving rebates and tax incentives for achieving them. Building owners expect their lighting designers and installation contractors to achieve LEED and other green building goals in order to cash in on their incentives.
Demystifying Commercial Lighting Terms
Lighting terminology can be challenging if it's unfamiliar. Some terms are old and well known; some are relatively new. For instance, lighting fixtures were renamed several years ago to luminaires. This was only a name change. Other terms are less obvious. CRI refers to Color Rendering Index. It's a measure of how accurately an artificial light source displays colors. For instance, a pumpkin pie looks orange illuminated by sunlight or an incandescent light.
Specifying Hardware for Hazardous Locations
The risk of ignition is always present where electrical equipment is in place, primarily through the possibility of arcs and sparks, high temperatures and equipment failure. However, the potential danger of ignition rises significantly in hazardous locations. As a result, specifying hardware - including cabinets, connectors and other equipment - for hazardous locations requires special knowledge of the location, itself, and the specific hazards it may present.
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