NM CID EL-1 Practice Questions - New Mexico CID EL-1 Electrical Distribution Systems, Including Transmission Lines Examination Exam

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NESC 2007 Table 234-1 requires what minimum horizontal clearance at rest from open supply conductors over 750 V to 22 kV to a building wall?

3.0 feet 4.5 feet under 6 psf wind only, with no at-rest value 7.5 feet 18.5 feet

Correct Answer:

7.5 feet

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