What is the minimum clearance for overhead service drops above a flat roof at a height of 10 feet?

The minimum clearance for overhead service drops above a flat roof where the roof is at a height of 10 feet is 8 feet. This requirement is specified in the National Electrical Code (NEC) to ensure safety and accessibility. The clearance helps prevent accidental contact with the service drop lines, which can be hazardous due to the high voltages they carry.

In the case of overhead electrical conductors, the NEC establishes guidelines to protect both individuals and structures beneath the lines. By maintaining an adequate distance above the roof, it allows for proper drainage of water and snow, while reducing the risk of electrical hazards.

When it comes to the other options, they do not meet the NEC guidelines for safety in this context. For instance, a clearance of 6 feet is insufficient for the potential risks associated with service drops, while 10 feet and 12 feet exceed the minimum requirement but are not necessary in this specific situation, as 8 feet effectively provides the necessary protection.