Overhead distribution primary conductors require a minimum 3 m horizontal clearance from any structure or working area, and a 4. Electrical clearances are the minimum separation distances the National Electrical Code (NEC) requires between wiring, panels, overhead conductors. a. powered equipment These power sources include public or private utilities and, unless otherwise specified in the standard (for example, 1. 5), equivalent sources such as motor-driven generators and uninterruptible. For obvious reasons of safety and grid maintenance, there must be a minimum distance between any building (or other structure) and the power system equipment at all times. Most buildings need to stay at least 7 to 10 feet horizontally from overhead power lines, though that number climbs significantly for higher-voltage. The chart below contains guidelines to maintain required clearance distances between structure and landscaping projects, and any utility facilities or easements on or near your property. These distances are subject to change depending on the project. For questions, call 800-242-9137.
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