The general information in this Guide is applicable to all forms of outdoor metal-enclosed switchgear. Specific data are given in Fig. 2 for outdoor metal-clad switchgear.* The many combinations of sizes and ratings in similar housings make it impracticable to provide equivalent information for outdoor low-voltage metal-enclosed air circuit-breaker switchgear. Data are not yet available for specific recommendations for other switchgear equipment or components.

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This guide identifies the mechanisms and analytical approach for ac interference effects on conductive linear facilities due to the operation of co-located electric transmission lines. The common mechanisms for ac interference, including magnetic inductive coupling, capacitive coupling, and conductive voltage transfer through soil are discussed. Included are general guidelines and considerations for performing detailed ac interference analyses, with sections specific to the analysis of co-… read more located pipeline and railroad facilities. This guide does not dictate specific compliance limits, direct when an ac interference analysis must be performed, or cover other issues that may need to be considered in joint-use corridors, such as effects due to lightning striking the line or dc corrosion on structures. read less

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This recommended practice covers the evaluation of the electrical service requirements of industrial and commercial power systems. It describes various ways to take power from the serving utility (e.g., radial, loop). It then covers the specific requirements for service entrance equipment, as well as service equipment rooms, vaults and pads, and other ways of connecting to the utility's service point. Special application requirements are also discussed.

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This guide describes methods which may be used to evaluate the condition of stator cores of AC electric machines including generators, motors, and synchronous condensers, and summarizes background information relevant for the informed application of these methods. This guide is not intended to provide detailed inspection, testing, and maintenance procedures. Other IEEE standards and references related to stator core evaluations and repairs are listed in Clause 2, "Normative References". The… read more methods outlined herein are generally applicable to machines rated 1 MVA (1340 HP) and higher. However, these methods may be applicable to units of lower rating. read less

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This document establishes standard test methods and test objects for measuring the imaging performance of x-ray computed tomography (CT) security-screening systems. The quality of data for automated analysis is the primary concern. This document does not address the system's ability to use this image data to automatically detect explosives or other threat materials, nor is it intended for vendor-to-vendor comparisons of threat-detection performance. This standard does not purport to address… read more radiation safety and health practices associated with CT security-screening systems; users are advised to determine the applicability of regulatory limitations prior to use. Four annexes are included. Annex A is a bibliography (informative). Annex B (normative) provides mechanical drawings of the imaging test objects that compose the test article. A sample test report form is given in Annex C (informative). Finally, Annex D (informative) offers statistical guidance on multiple scans, summary statistics, and comparison of results. read less

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This guide contains a tutorial on lead-acid battery technology, battery charging characteristics, and a laboratory test procedure to evaluate charge parameters and battery performance. The information on leadacid battery designs and environmental characteristics is provided to help the PV system designer make appropriate battery decisions. Photovoltaic system parameters and operating conditions are discussed. Charging parameters related to PV systems are also suggested to help in the selection… read more of appropriate test set points. Finally, a performance test to verify the battery's operating set points and performance is provided, including discussions on how to interpret test results. This guide is applicable to all stand-alone PV systems where PV is the only charging source. This guide does not include PV hybrid systems. read less

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This standard is applicable to celebratory balloons that are comparable in size and shape to what are commonly referred to as foil balloons and are available in retail stores and filled with helium or a lighter-than-air gas. This test procedure evaluates the dielectric performance of celebratory balloons in contact with simulated energized overhead distribution power lines with the intent of minimizing balloon-caused power system outages (or electrical faults). The scope is limited to… read more distribution system voltages of 38 kV or less and only single balloons. The effects of having any moisture, contaminants, or string or ribbon attachments to the balloon(s) are not investigated under this procedure. read less

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