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IEEE Std 241-1990, IEEE Recommended Practice for Electric Power Systems in Commercial Buildings, commonly known as the (Gray Book) is published by the Institute of Electrical and Electronics Engineers (IEEE) to provide a recommended practice for the electrical design of commercial buildings. It has been prepared on a voluntary basis by engineers and designers functioning as the Gray Book Working Group within the IEEE Power Systems Engineering Committee. This recommended practice will probably be of greatest value to the power oriented engineer with limited commercial building experience. It can also be an aid to all engineers responsible for the electrical design of commercial buildings. However, it is not intended as a replacement for the many excellent engineering texts and handbooks commonly in use, nor is it detailed enough to be a design manual. It should be considered a guide and general reference on electrical design for commercial buildings. Tables, charts, and other information that have been extracted from codes, standards, and other technical literature are included in this recommended practice. Their inclusion is for illustrative purposes; where the correctness of the item is important, the latest referenced document should be used to assure that the information is complete, up to date, and correct. It is not possible to reproduce the full text of these items in this recommended practice.

定价： 220元 / 折扣价： 187 元

This recommended practice covers the maintenance of industrial and commercial power systems. It covers the fundamentals of electrical equipment maintenance, how to develop successful maintenance strategies, and the common testing methods used as part of an electrical equipment maintenance program.

定价： 89元 / 折扣价： 76 元

The scope of this document is to provide concensus of the expertize on the subject of grounding of industrial and commercial power systems, equipemnt, lightning protection, connection to earth and computer system grounding.

定价： 188元 / 折扣价： 160 元

This standard is needed to set engineering recommendations for including energy management in the electrical design, operation and maintenance of a facility. An up-to-date methodology to chose the proper equipment and evaluate its worth is needed. In addition, the latest technologies of metering, lighting, powering and generating equipment need to be mentioned.

定价： 192元 / 折扣价： 164 元

This recommended practice covers the instrumentation and metering (I&M) of industrial and commercial power systems. It describes the importance of metering to achieve a successful energy management process as well as considerations that must be made when applying the latest metering technology.

定价： 81元 / 折扣价： 69 元

This recommended practice covers the system grounding of industrial and commercial power systems. The basic reasons for grounding or not grounding the electrical system and the various types of system grounding, as well as the practices commonly used to ground electrical systems are discussed.

定价： 106元 / 折扣价： 91 元