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2010 Construction and Material Specifications - Ohio Department of ...

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725.21<br />

except at the weld bead. Ensure that the cross section <strong>of</strong> the pole is circular, or<br />

multi-sided with no less than eight sides <strong>and</strong> that the difference between the major<br />

<strong>and</strong> minor diameters <strong>of</strong> poles <strong>of</strong> circular cross section or the difference between<br />

the maximum <strong>and</strong> minimum distances across corners for poles <strong>of</strong> multi-sided cross<br />

section, measured at any point along the longitudinal axis, does not exceed 3/16<br />

inch (5 mm).<br />

Ensure that steel poles are tapered tubes with a true continuous taper not less<br />

than 0.06 inches per foot(1.5 mm per 300 mm)nor more than 0.16 inches per<br />

foot(4.0 mm per 300 mm).<br />

Ensure that aluminum poles, either spun or cold rolled, are a true continuous<br />

taper except for the top <strong>and</strong> bottom sections which may be straight, that no more<br />

than 40 percent <strong>of</strong> the total shaft length is straight, <strong>and</strong> that the average rate <strong>of</strong><br />

shaft taper including straight portions <strong>of</strong> the shaft is not less than 0.06 inches per<br />

foot(1.5 mm per 300 mm)nor more than 0.16 inches per foot(4.0 mm per 300 mm).<br />

Ensure that the full design strength <strong>of</strong> the pole shaft section in bending can be<br />

transmitted through the base plate into the transformer base or the anchor bolts<br />

without permanent bending <strong>of</strong> the base plate or failure <strong>of</strong> the pole shaft to base<br />

plate connection.<br />

Ensure that there is a J hook inside the pole just below the top on which to<br />

hang the pole <strong>and</strong> bracket cable support assembly.<br />

Ensure that nonstructural castings for aluminum poles, including the pole cap<br />

are <strong>of</strong> ASTM B 26/B 26M or B 108, Alloy S 5 A, Condition F.<br />

Ensure that steel poles <strong>and</strong> bracket arms are hot dipped galvanized after<br />

fabrication in accordance with the requirements <strong>of</strong> 711.02.<br />

Furnish aluminum poles <strong>and</strong> bracket arms in natural aluminum with a satin<br />

brushed surface.<br />

Ensure that each light pole is identified by a raised or engraved marking applied<br />

to the edge <strong>of</strong> the base plate which identifies the manufacturer <strong>and</strong> the year that the<br />

pole was manufactured <strong>and</strong> that such marking remains legible after the pole has<br />

been galvanized.<br />

Ensure that bolts, nuts, washers <strong>and</strong> other fasteners used to assemble the light<br />

pole are <strong>of</strong> galvanized steel conforming to 711.02, stainless steel conforming to<br />

ASTM A 320/A 320M (AISI-300 series) or silicon bronze conforming to ASTM B<br />

98M (B 98).<br />

Ensure that each non-frangible steel transformer base is capable <strong>of</strong> transmitting<br />

the design dead, live, ice <strong>and</strong> wind loads <strong>of</strong> the light pole to be mounted on it to the<br />

foundation without failure or permanent deformation, has a flush door permanently<br />

attached by means <strong>of</strong> a top-mounted continuous stainless steel hinge, <strong>and</strong> is made<br />

from steel conforming to ASTM A36/A 36M hot dip galvanized after fabrication.<br />

Ensure that each frangible aluminum transformer base is capable <strong>of</strong> transmitting<br />

the design dead, live, ice <strong>and</strong> wind loads <strong>of</strong> the light pole to be mounted on it to the<br />

foundation without failure or permanent deformation, has a flush aluminum door<br />

permanently attached by means <strong>of</strong> a top-mounted continuous stainless steel hinge,<br />

786

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