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EXTERNAL GROUNDING (EARTHING) ELECTRODE SYSTEM APPENDIX F: R56 COMPLIANCE CHECKLIST ❐ When used, grounding electrode encasement materials meet specifications and installation requirements. ❐ All grounding conductors meet specifications and are properly installed. ❐ All grounding conductors have been routed in a continuous downward direction toward the EGB, TGB, or grounding electrode system, with no sharp bends. ❐ Grounding conductors are routed as straight as possible and protected from physical damage as required. ❐ Grounding conductors are securely fastened as required. ❐ Grounding conductors meet or exceed the conductor size requirements. ❐ Braided grounding conductors re not used anywhere in the external grounding system. ❐ An External Ground Bus Bar (if required) is properly installed at transmission line entry point. ❐ EGB grounding electrode conductor is properly installed. ❐ A Tower ground bus bar (if required) is properly installed. ❐ Soil conditions at the site have been reviewed and grounding electrode system components have been selected accordingly. ❐ Galvanic corrosion has been considered and installation techniques have been employed to help prevent galvanic corrosion. ❐ Approved bonding techniques are used to bond dissimilar metals. ❐ Approved methods are used for conductor connection and termination. ❐ Bonding surfaces for lugs and clamps are free of paint and corrosion and a conductive anti-oxidant compound has been applied. ❐ Painted or galvanized bonding surfaces for exothermic welding were cleaned and painted to inhibit rusting. ❐ The grounding electrode system resistance requirements are met. ❐ The tower is properly grounded and bonded, with the required number of grounding conductors. ❐ Guy anchor points for guyed towers are properly grounded in a manner that will minimize galvanic corrosion. ❐ A grounding electrode system that is appropriated for the site (e.g., dedicated communications building, outdoor cabinet, or Type A site) is installed. ❐ Generators external to the building are properly grounded/bonded. ❐ Tower mounted antenna preamplifiers are properly grounded/bonded to the tower. ❐ Each transmission line outer shield is properly bonded to the tower at the top of the tower near the antenna with a weather sealed transmission line grounding kit. ❐ Each transmission line outer shield is properly bonded to the tower or the TGB at the transition of the vertical line run with a weather sealed transmission line grounding kit. F-2 68P81089E50-B 9/1/05
STANDARDS AND GUIDELINES FOR COMMUNICATION SITES INTERNAL GROUNDING SYSTEM ❐ Each transmission line outer shield is properly bonded to the tower as required for towers greater than 61 m (200 ft.) with a weather sealed transmission line grounding kit. ❐ Each transmission line outer shield is properly bonded to the EGB (or grounding electrode system) with a weather sealed transmission line grounding kit. ❐ All fencing, gates, and gate support posts are properly bonded to the grounding electrode system. ❐ Ice bridge/cable supports and posts are properly bonded to the grounding electrode system. ❐ The following items, and other metallic items located within 1.8 m (6 ft.) of the grounding electrode system or within 1.8 m (6 ft.) of grounded objects, are properly bonded to the grounding electrode system as applicable: • Metallic members of all incoming telecommunications cables • Main electrical ground • Main telephone ground • Any other grounding electrode system at the site • Metallic entry ports • Metallic conduits, piping, and raceways • HVAC units • Vent covers and grates (if not already grounded/bonded inside) • Metal siding and/or roofing • Metal fuel storage tanks (above or below ground) • Skid plate or metal support frame of a prefabricated shelter • Metallic structures for antenna supports, light fixtures, etc. • Handrails and safety rails • Ladders and safety cages ❐ Roof-Mounted antenna masts and metal support structures are properly grounded. ❐ Building side mounted antennas are properly grounded. ❐ Rooftop mounted towers are properly grounded. ❐ Dispatch centers co-located with communications towers have considered additional grounding components/techniques to help improve protection of the site. ❐ Special grounding situations have followed minimum recommendations. F.3 INTERNAL GROUNDING SYSTEM ❐ A properly sized master ground bus bar (MGB) is installed as required. ❐ MGB grounding electrode has been properly bonded and routed toward the grounding electrode system. 68P81089E50-B 9/1/05 F-3
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© 2005 MOTOROLA, INC. ALL RIGHTS R
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TABLE OF CONTENTS Chapter 1. Introd
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STANDARDS AND GUIDELINES FOR COMMUN
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CHAPTER 1 INTRODUCTION 1 This manua
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CHAPTER 2 SITE DESIGN AND DEVELOPME
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CHAPTER 3 COMMUNICATION SITE BUILDI
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CHAPTER 4 EXTERNAL GROUNDING (EARTH
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CHAPTER 5 INTERNAL GROUNDING (EARTH
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CHAPTER 6 POWER SOURCES 6 6.1 LOCKO
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CHAPTER 7 SURGE PROTECTIVE DEVICES
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CHAPTER 8 MINIMIZING SITE INTERFERE
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CHAPTER 9 EQUIPMENT INSTALLATION 9
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APPENDIX A ELECTROMAGNETIC ENERGY I
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APPENDIX B SOIL RESISTIVITY MEASURE
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Page 453 and 454: STANDARDS AND GUIDELINES FOR COMMUN
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Page 471 and 472: APPENDIX D GROUNDING (EARTHING) ELE
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Page 503: APPENDIX F R56 COMPLIANCE CHECKLIST
Page 509 and 510: I NDEX Index Index AC power cabling
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