Mejoramiento de los sistemas de puesta a tierra del Hospital Gineco Obstétrico Pediátrico de Nueva Aurora “Luz Elena Arismendi” mediante la inserción de bobinas de choque

Abstract

It is very essential that all infrastructures or establishments with electrical installations have a good grounding system, so that the main objective is to safeguard the physical integrity of people, since when surges or failure events occur in the electrical system, it can considerably affect the physical integrity of people and electrical and electronic equipment that are in it, mentioning the electronic equipment, these failures can shorten the life and proper functioning of the same. It is necessary then that a good SPT is able to immediately clear these events occurred either by overvoltage’s, failure events or atmospheric discharges that occur in the environment. The purpose of this feasible project was to design a new SPT grounding system for sensitive equipment of the Nueva Aurora Luz Elena Arismendi Pediatric Obstetrics and Gynecology Hospital, based on standards such as IEEE 80-2000, which mentions that in order to implement an SPT it must meet the requirements of step and touch voltages that are within tolerable or acceptable levels. Taking as a basis for our data obtained in the resistivity measurements of the soil under study. Within this context it is also mentioned the NFPA, IEC and NEC regulations, which refer to the quality levels of the SPT that must meet the designs of the grounding meshes, since for hospital facilities the resistance ranges of the installed meshes must be less than or equal to 5 ohms, within the regulations also emphasize that all metallic infrastructure or electrically conductive material must be grounded or in other words connected to the SPT, to avoid overvoltage accidents within the building. It is also of vital importance that all these SPT are interconnected and equipontentionalized with all the existing meshes, not leaving aside the SPT of the lightning rods since they should also be connected to the general SPT. The results obtained regarding the resistance measurements of the existing meshes reflect a high resistance in comparison with the standards, since resistances of more than 5 ohms were evidenced, which are out of the established limits. In order to solve this problem, a new SPT was designed, which will help to improve the resistance levels of the meshes of the hospital in question.