IEEE STD 80-2000 PDF

Esta cuarta edicin supone la segunda revisin importante de esta gua desde su primera edicin en Las Principales modificaciones incluyen la ampliacin de las ecuaciones para el clculo de tensiones de toque y paso para incluir a las redes en forma de L y en forma de T; la introduccin de las curvas para ayudar a determinar la divisin de corriente; modificaciones a las curvas de factor de reduccin por material de la superficie; cambios en los criterios para la seleccin de los conductores y las conexiones; informacin adicional sobre la interpretacin de la medicin de resistividad; y la discusin de los suelos de varias capas. Otros cambios y adiciones se hicieron en las reas de gas y subestaciones, las ecuaciones para el clculo de la resistencia de la malla, y de los anexos. La cuarta edicin contina construyendo sobre las bases puestas por tres grupos de trabajo anteriores: Grupo de Trabajo Esta cuarta edicin de la Std 80 IEEE est dedicada a la memoria de JG Sverak, que, a travs de sus conocimientos tcnicos y experiencia, desarrollando las ecuaciones para el clculo de tensiones de tacto y de paso y las ecuaciones de la resistencia de la malla utilizadas en la edicin de de esta gua. Su liderazgo, el humor y la perseverancia como Presidente del Grupo de Trabajo

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Distribution, transmission, and generating plant substations are also included. With proper caution,the methods described herein are also applicable to indoor portions of such substations, or to sub-stations that are wholly indoors. No attempt is made to cover the grounding problems peculiar to dc substations.

A quantitative analysis of the effects of lightning surges is also beyond the scope of this guide. Scope: This guide is primarily concerned with outdoor ac substations, either conventional or gas-insulated. Distribution, transmission, and generating plant substations are included. With proper caution, the methods described herein are also applicable to indoor portions of such substations, or to substations that are wholly indoors. Purpose: The intent of this guide is to provide guidance and information pertinent to safe grounding practices in ac substation design.

The specific purposes of this guide are to a Establish, as a basis for design, the safe limits of potential differences that can exist in a substation under fault conditions between points that can be contacted by the human body. The concept and use of safety criteria are described in Clause 1 through Clause 8, practical aspects of designing a grounding system are covered in Clause 9 through Clause 13, and procedures and evaluation techniques for the grounding system assessment in terms of safety criteria are described in Clause 14 through Clause Supporting material is organized in Annex A through Annex G.

This guide is primarily concerned with safe grounding practices for power frequencies in the range of Hz. The problems peculiar to dc substations and the effects of lightning surges are beyond the scope of this guide.

A grounding system designed as described herein will, nonetheless, provide some degree of protection against steep wave front surges entering the substation and passing to earth through its ground electrodes. Article : Date of Publication: 4 Aug.

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