HP Pavilion a1000 Warranty and Support Guide - Page 14

TV Antenna Connectors Protection External Television Antenna Grounding If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is electrically grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to proper electrical grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna-discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for the grounding electrode. Lightning Protection For added protection of any product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug the product from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product from lightning and power line surges. 7 6 5 4 3 1 2 Antenna Grounding Antenna Grounding Reference Grounding Component 1 Electric Service Equipment 2 Power Service Grounding Electrode System (NEC Art 250, Part H) 3 Ground Clamps 4 Grounding Conductors (NEC Section 810-21) 5 Antenna Discharge Unit (NEC Section 810-20) 6 Ground Clamp 7 Antenna Lead in Wire Power Lines An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. WARNING: When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them could be fatal. The information contained herein is subject to change without notice. Copyright © 2004-2005 Hewlett-Packard Development Company, L.P. 14