2.10.2
Plate Anchors
Minimum area of [_____] square mm inches and rated by manufacturer for
[_____] Newton pounds or more in soils classified as medium dense coarse
sand and sandy gravels; firm to stiff clays and silts.
2.11
GROUND RODS
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NOTE: Use "copper clad steel" ground rods for
LANTNAVFACENGCOM projects.
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[Copper-weld type] [Copper clad steel] [Sectional type] ground rods at least
19 mm 3/4 inch in diameter and 3050 mm 10 feet long. Die-stamp each near
top with name or trademark of manufacturer and length of rod in millimeter
feet. Rods shall have a hard, clean, smooth, continuous, surface
throughout length of rod.
2.11.1
Ground Wire
Provide soft drawn copper wire ground conductors a minimum No. 4 AWG.
Ground wire protectors may be either PVC or half round wood molding. [Wood
molding shall be fir, pressure treated in accordance with AWPA C25, or
shall be cypress or cedar.]
2.12
SURGE ARRESTERS
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NOTE: Rating of lightning (surge) arresters should
be 125 percent of the nominal line-to-ground voltage
of four-wire, multi-grounded neutral systems; 80
percent of the nominal line-to-line voltage for
three-wire, solidly grounded neutral systems; or
nominal line-to-line voltage for delta and
ungrounded-wye systems. Distribution class
arresters should normally be used. However, use
intermediate class on the 34.5 kV system at Naval
Base, Norfolk, VA.
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IEEE C62.11, metal oxide, porcelain housed, surge arresters arranged for
[crossarm] [equipment] mounting. RMS voltage rating shall be [3] [6] [9]
[10] [12] [15] [27] [30] [36] kV. Arresters shall be [Distribution]
[Intermediate] [Station] class.
2.13
FUSED CUTOUTS
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NOTE: Include last bracketed sentence for NAS
Pensacola projects. Delete it in all other
projects. For SOUTHNAVFACENGCOM projects, use fused
cutouts with wet process porcelain insulators. For
LANTNAVFACENGCOM projects, use "open type" cutouts
with Type "K" fuses as indicated.
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[Open] [Enclosed] type fused cutouts rated [100] [200] amperes and [_____]
amperes symmetrical interrupting current at [[7.8] [15] kV ungrounded]
SECTION 16301N
Page 20
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