Thursday, August 30, 2012

ANSI C136 Roadway Lighting Standards

The ANSI C136 Roadway Lighting Series of standards addresses the variety of possible solutions available when it comes to roadway and area lighting. Without dictating the exact products to use, ANSI C136 standards provide guidelines for interoperability between similar products; construction, performance, and dimensional specifications for lighting poles of varying materials and designs; and luminaire attachment features. With the National Electrical Manufacturers Association (NEMA) as the secretariat, these standards represent the result of a consensus based process that strives to include all interested parties in the development of its standards.

Standardization in roadway lighting is important precisely due to the plethora of options available to those designing lighting systems. While replacing one luminaire with a different one is not by itself a problem, care must be taken to avoid potential mishaps such as keeping the lighting distribution the same so that the existing pole and mounting systems remain adequate to illuminate the area, and to avoid affecting visibility by being too bright in certain locations or angles; to be sure that the new luminaires fit the existing mounting system and that the mounting system is strong enough to support the new luminaires; and to keep maintenance procedures as unaffected as possible.

Ranging from broad standards that apply regardless of the technology used such as ANSI C136.15, Luminaire Field Identification, which provides a simple, uniform method for identifying the type and wattage rating of luminaires in the field, to more specific standards that address a particular technology, like the new ANSI C136.37, Solid State Light Sources, the ANSI C136 series covers a wide range of possibilities. Other broad ranging standards, such as ANSI C136.25, Ingress Protection, address how protected luminaire enclosures are from their environment with regard to hazards such as dust, moisture, or solid objects. ANSI C136.28, Glass Lenses, covers flat and molded glass of soda-lime and borosilicate materials used as lenses, regardless of the technology behind the light source. Similarly without regard for the light source technology, ANSI C136.31, Luminaire Vibration, covers the capability of luminaires to withstand vibration and provide vibration test methods to that end.

Taken together, the ANSI C136 series of roadway and area lighting standards provides guidelines for a wide range of lighting situations, allowing for a variety of different solutions, all while linking them together and making the system more reliable as a whole.

Wednesday, August 29, 2012

Corporate Dictionaries - A Valuable Asset for Any Business, Small or Large

Maintaining a corporate dictionary is the key to unambiguous internal and external communication. It is the first step in data quality and data governance, as well, as an invaluable tool in managing the costs of data integration and regulatory compliance.

The ECCMA Corporate Dictionary Manager (eCDM), was released on August 6th. This new cloud application leverages ISO 22745, the international standard for open technical dictionaries, and the eOTD, the world’s largest repository of over three million concepts with associated multilingual terminology collected from international, national and industry standards, as well as, industry glossaries and classifications.

The two most important features of the eCDM are designed to help the user with both internal and external communication. The first feature is spreadsheet, report, form and data model registries that are designed to ensure that the corporate dictionary is rooted into the practical reality of everyday business. A dictionary steward can monitor how the dictionary is used throughout the organization, as well as, identify and solve inconsistencies in the use of the organization’s terminology. The second feature is concept equivalence. This is designed to make it easier to take advantage of concept localizations.

The eCDM also has an advanced feature that allows the management of multiple classifications, as well as, create and maintain metadata mapping solutions through concept equivalence. As an added bonus, the eCDM can be integrated with the ECCMA Data Requirements Registry (eDRR™), a cooperative repository of common cataloging and data exchange templates.

Free webinars are available for anyone who is interested in learning more about the eCDM.

ECCMA is a not-for-profit membership association that is striving to improve data quality and reduce the cost of cataloging through the development of international standards and cataloging tools.

Contributing Author: Peter Benson, Executive Director ECCMA

Tuesday, August 28, 2012

Workplace Lighting in Commercial Buildings

Lighting accounts for almost 35 percent of the electricity used in commercial buildings in the United States according to the US Department of Energy. Heat from lights also affects air conditioning equipment costs and operating expense. The U.S. Energy Information Administration reports that lighting in commercial buildings accounts for 22 percent of electricity use, “About 297 billion kWh was consumed for lighting by the commercial sector, which includes commercial and institutional buildings and public street and highway lighting, equal to about 22% of commercial sector electricity consumption in 2010.”

It’s hard to compare these and other estimates of energy consumption for lighting commercial buildings and reports range from 19 to 40 percent in studies from various sources. But it’s clear that lighting is a good area to study for saving capital expense, operating expense and improving productivity and safety.

Using natural lighting, and turning lights off manually or installing controls to automatically turn lights off provide savings. An article appearing in GreenTech Enterprise in 2009 stated that, “Currently, dynamic lighting controls are only present in about 1 percent of buildings.” Managing Energy Costs in Office Buildings cites a range of energy savings ideas. One interesting point this paper makes is that lighting in parking areas often is more than is called for by the IESNA standards.

The ANSI standards webstore has developed a special section for workplace lighting standards to cover lighting design, energy efficient lighting and much more. Please let us know what you think and what you have done with lighting in your buildings.

See also the past post, Workplace Lighting Standards

Monday, August 27, 2012

High Reliability Electronics Standards

High reliability electronics find application in military, space, aviation, nuclear, medical and other demanding environments. Though there are many applicable standards, these are often cited.

The European Cooperation for Space Standardization and the European Space Agency as well as NASA have an interest in space standardization for electronics and in other areas as well pertaining to quality and mission success. NASA standardization in particular combines information for NASA developed standards and those developed by voluntary consensus standards (non-government) bodies and other government standards-developing organizations.

Counterfeit electronics are discussed in more detail in an earlier post on the ANSI blog.

Monday, August 13, 2012

Workplace Lighting Standards

Workplace lighting standards are a tricky matter. To those designing workplaces, lighting is a challenging aspect that requires careful consideration and analysis. To those using those workplaces, lighting should never fall under any consideration and instead serve its purpose without the worker having to devote any attention or effort to its management

Workplace lighting has to strike a balance between visual comfort and performance. Workers have to be able to clearly see what they are doing and their environment without the illumination becoming too harsh or obstructive. For example, while putting a 100 watt incandescent light bulb in a desk lamp right beside an office worker will certainly light up everything around them, it will also be too harsh and significantly interfere with that worker’s comfort and, in turn, negatively affect their productivity. Outdoor lighting is even more complicated, as the quantity and quality of natural light changes throughout the day and therefore must be included in any calculations and subsequent design decisions. Similarly, workplace lighting standards have to balance setting forth guidelines and making sure that the standard “neither provides specific solutions, nor restricts the designer's freedom from exploring new techniques nor restricts the use of innovative equipment.

Workplace lighting solutions vary immensely based upon the environment. While the two most general cases are those of indoor and outdoor workplaces, standards developing organizations have gone on to also address the unique lighting needs of specific environments such as hospitals and other health care facilities,or those of educational facilities

ANSI has recently organized a variety of workplace lighting standards into one collection to both educate those who are not aware of the full range of standards in this field and to assist those who are looking for standards in their search.

Additionally, ANSI’s page for the Illuminating Engineering Society of North America (IESNA), lists a great many standards dealing with workplace lighting and related topics.