NECA NEIS 420

Abstract

<strong>Products and Applications Included</strong> <br>This standard describes application and installation practices and procedures for low-voltage, mediumvoltage, and high-voltage fuses. This publication applies to all classifications of fuses used for overcurrent protection of distribution, utilization, and control equipment used for power, heating, and lighting loads for commercial, institutional, and industrial use in nonhazardous indoor and outdoor locations. <br>It also covers periodic routine maintenance and troubleshooting procedures for fuses, and special procedures used after adverse operating conditions, such as overcurrents, ground-faults, or exposure to water or other liquids. <br><strong>Regulatory and Other Requirements</strong> <br>a) All information in this publication is intended to conform to the National Electrical Code (ANSI/NFPA 70). Installers should always follow the NEC, applicable state and local codes, manufacturers' instructions, and contract documents. <br>b) Only qualified persons familiar with the installation of fuses should perform the work described in this publication. It is recommended that all work be performed in accordance with NFPA 70E, <em>Standard for Electrical Safety in the Workplace.</em> <br>c) General requirements for installing electrical products and systems are described in NECA 1, <em>Standard Practices for Good Workmanship in Electrical Construction</em> (ANSI). Other <em>National Electrical Installation Standards</em> provide additional guidance for installing particular types of electrical products and systems. A complete list of NEIS is provided in Annex B.