It’s often unclear what clearance you really need for overhead service conductors. Just looking through the NEC requirement [230.24], you see numbers ranging from 3 ft to 18 ft. And then at the end of 230.24, you see references to clearance requirements in three other Articles. Fortunately, you don’t have to read all this. To know the minimum clearance for a particular application: Pick from the five types of applications [230.24(A) – (E)] that fits your installation. ...
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