A.2.2 Design "Y" (alternate)
An alternate design “Y” (shown in
(p. 85)) uses three radials in
a 120 degree star (“Y”) arrangement. Each radial consists of three, 5/8”-diameter x 8-foot long
copper-clad grounding rods. The first rod in each radial must be at least eight feet from the
equipment. The rest of the rods must be at least 16 feet from any other rod.
FIGURE A-5. Design “Y” (alternate) uses nine copper-clad grounding rods installed in a 120
degree star configuration
Section Appendix A. Grounding recommendations
84
Summary of Contents for WS-PRO2
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