[TowerTalk] 220v trench proximity to 7/8” feedline trench?

[Ed Post]

Need some guidance as it relates to the proximity of a new 220 V power line (trenched and in PVC conduit) running to my crank up tower (3 HP motor) about a 500 foot run from my barn and 2 runs of 7/8” hardline (partially trenched through fields and not through the woods) all terminating at the tower base.   

What is the minimum that the 220v trench should be separated from the 7/8” feedlines trench? they will run parallel for about 250’ then go their separate ways, 220V to barn, 7/8” to the shack. 

Thanks in advance 

Ed W2MKM 

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