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

STANDARDS AND GUIDELINES FOR COMMUNICATION SITES
Appendix C. Protecting Against Electrostatic Discharge in Equipment
Rooms and Dispatch Centers C-1
C.1 Background Information ............................................................................................................ C-1
C.2 Equipment Handling And Storage ............................................................................................. C-1
C.3 Measures for Controlling Electrostatic Discharge ..................................................................... C-2
C.3.1 Wrist-Straps ...................................................................................................................... C-2
C.3.2 Relative Humidity Control .................................................................................................C-2
C.3.3 Flooring ............................................................................................................................. C-3
C.3.4 Chairs ................................................................................................................................ C-3
C.3.5 Dispatch Position Desktops .............................................................................................. C-4
C.3.6 Video Display Terminals ...................................................................................................C-4
C.3.7 Equipment Bonding, Grounding, and Surge Protection .................................................... C-4
C.4 ESD Control Program ................................................................................................................ C-4
Appendix D. Grounding (Earthing) Electrode System
Testing/Verification D-1
D.1 Overview ................................................................................................................................... D-2
D.2 Prerequisites for Testing ........................................................................................................... D-2
D.3 Fall-of-Potential Method Testing Procedure .............................................................................. D-4
D.3.1 Test Description ................................................................................................................ D-4
D.3.2 Required Test Equipment and Supplies ........................................................................... D-4
D.3.3 Preparation for Testing ..................................................................................................... D-5
D.4 Clamp-On Ohmmeter Testing Procedure ................................................................................ D-13
D.4.1 Test Description .............................................................................................................. D-13
D.4.2 Required Test Equipment and Supplies ......................................................................... D-14
D.4.3 Preparations for Testing ..................................................................................................D-14
D.5 Combining Soil Resistivity Testing with Clamp-On Ohmmeter ............................................... D-20
Appendix E. General Conversions and Formulas ....................................... E-1
Appendix F. R56 Compliance Checklist ....................................................... F-1
F.1 Building Design and Installation ..................................................................................................F-1
F.2 External Grounding (Earthing) Electrode System .......................................................................F-1
F.3 Internal Grounding System .........................................................................................................F-3
F.4 Power Sources ...........................................................................................................................F-4
F.5 TVSS ..........................................................................................................................................F-5
F.6 Equipment Installation ................................................................................................................F-6
Index........................................................................................................... Index-1
68P81089E50-B 9/1/05 IX