standards and guidelines for communication sites - Radio And ...

standards and guidelines for communication sites - Radio And ... standards and guidelines for communication sites - Radio And ...

radioandtrunking.com
from radioandtrunking.com More from this publisher
24.12.2012 Views

SIGNAGE CHAPTER 3: COMMUNICATION SITE BUILDING DESIGN AND INSTALLATION 3.15.2 ADDITIONAL SIGNAGE • Depending on the site's function, additional signage may be required. These signs typically notify of potential hazards associated with authorized or unauthorized site entry. • Engineering personnel designing the site shall be aware of conditions that may be present at the site that could warrant warning signage. Such conditions are, but are not limited to, high voltage and RF energy emissions hazards. • See Appendix A for additional information regarding EME signage. 3-32 68P81089E50-B 9/1/05

CHAPTER 4 EXTERNAL GROUNDING (EARTHING) 4 This chapter provides requirements and guidelines for designing and installing the external grounding (earthing) electrode system at a communications site. This chapter provides information on the following topics: • “Lightning Activity and Exposure” on page 4-3 • “Common Grounding (Earthing)” on page 4-5 • “Grounding (Earthing) Electrode System Component and Installation Requirements” on page 4-7 • “Dissimilar Metals and Corrosion Control” on page 4-34 • “Bonding to the External Grounding (Earthing) Electrode System” on page 4-40 • “Minimum Site Grounding (Earthing) Requirements” on page 4-44 • “Grounding (Earthing) Roof-Mounted Antenna Masts and Metal Support Structures” on page 4-74 • “Grounding (Earthing) Rooftop Mounted Tower Structures” on page 4-79 • “Special Grounding (Earthing) Applications” on page 4-81 • “Special Grounding (Earthing) Situations” on page 4-88 NOTE: Throughout this chapter the terms grounding and earthing are used synonymously. 4.1 INTRODUCTION The requirements and guidelines in this chapter are derived from a compilation of local and national codes, widely accepted industry codes and standards, and good engineering practices. Such codes and standards are from, but not limited to, the following standards organizations: • Alliance for Telecommunications Industry Solutions (ATIS) • American National Standards Institute (ANSI) • Australian Standards ® (AS) • British Standards Institution (BS) • International Association of Electrical Inspectors (IAEI) • International Electrotechnical Commission (IEC) • Institute of Electrical and Electronics Engineers (IEEE) • National Fire Protection Association (NFPA) • Telecommunications Industry Association (TIA) • Underwriters Laboratories (UL) • United States Department of Defence (DoD) • United States Federal Aviation Administration (FAA) • United States National Weather Service 68P81089E50-B 9/1/05 4-1

SIGNAGE CHAPTER 3: COMMUNICATION SITE BUILDING DESIGN AND INSTALLATION<br />

3.15.2 ADDITIONAL SIGNAGE<br />

• Depending on the site's function, additional signage may be required. These signs typically notify<br />

of potential hazards associated with authorized or unauthorized site entry.<br />

• Engineering personnel designing the site shall be aware of conditions that may be present at the site<br />

that could warrant warning signage. Such conditions are, but are not limited to, high voltage <strong>and</strong><br />

RF energy emissions hazards.<br />

• See Appendix A <strong>for</strong> additional in<strong>for</strong>mation regarding EME signage.<br />

3-32 68P81089E50-B 9/1/05

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!