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i <br /> SECTIOtI 16106 <br /> IUTILITY DUCP SYSTEM <br /> 3.03 CROUNDING <br /> � Ezcept xhere additional grounding is shorm, provide a 3/4 inch x 10 <br /> foot copper clad steel ground rod installed through the bottom of the <br /> � poxer veult near one corner xith 6 inchea of rod eztending above the <br /> � floor. Caulk or seal opening around rod through floor of vault. <br /> Provide e 4/0 atrand=d ground conductor encased rithin the duct <br /> Iencasement and extend and allox a 10 foot loop xithin each vault. <br /> 3.04 NINTER COVER <br /> ( All vaults and manholes shall be covered for the rinter as folloxs: <br /> A. Spreed 6 mil plastic 2 fee: beyond atructure dimensions. <br /> ( B. Cover plastic with 2" z 8" board planking; at lesat 66� cove:. <br /> C. Cover area to 4 feet beyond structure with 12" deep soil, sand or pea <br /> � gravel. <br /> 3.05 MARKER TAPE <br /> I Provide marker tape 1 '-0" belox grade above full length of every duct <br /> bank. Tape shall reu3, caution - electric line buried belorr". By <br /> Terra tape or accepted equal. <br /> IEND OF SECPION <br /> 16106-2 �� <br /> 83-01 <br />