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FIGURES <br />Figure 4.18 -5 Typical Distribution Three -Phase Pole Configuration. <br />Location of implementation for: <br />POLE -TOP GROUND MOLDING <br />EAGLE <br />MEASUREMENTS <br />CONDUCTOR — ^� •/ INSUFFK=NT EAGLE <br />CLEARANCE <br />1 ' <br />a e <br />ri W t <br />`a. <br />CROGSARM <br />r�NEUTRAI Location of implementation for: <br />PERCH GUARDS AND BIRD <br />SPIKES <br />Typical distribution three -phase pole configuration. <br />Three -phase power lines are usually constructed with an 8 -foot crossarm supporting two <br />conductors. A single energized phase conductor typically sits on a pole -top insulator. <br />Distribution three -phase tangent structures, without pole -top grounds or pole -top mounted <br />equipment, generally provide adequate separation for all but the largest raptors since 44 inches of <br />phase separation is provided. There is also a 20- degree angle between the outer and center phase <br />wires. This separation is appropriate in areas where large raptors are less likely to occur. In areas <br />where eagles use these poles as preferred perches, additional protection to minimize the <br />electrocution risk would be required. A couple of different raptor protection device alternatives <br />and their locations are shown above in Figure 4. <br />Figures 38 Revision Date: 11/11/13 <br />Revision No.: MR -130 <br />