What is the minimum clearance under an electrical service drip loop of a house?
Sunday, January 26, 2020
There are two minimum clearance dimensions: 1) from the drip loop to the ground when it is not over the roof, and 2) drip loop to roof surface when over the roof. When the drip loop is over the ground, it must be a minimum of 10’-0” above the grade, which is the same minimum clearance as the rest of the service drop. The photo below is an example of one that is way too low, and easy to reach up and grab—which is what you don’t want.
And when over a roof, the bottom of the drip look cannot be less than 18-inches above the roof. This only applies when the service mast is over eaves and four feet or less from the edge of the roof, and the length of the run of the service drop over the roof is six feet or less.
Otherwise, the drip loop at a service mast must a minimum of three feet above a roof sloped 4/12 or more, or eight feet over a roof sloped less than 4/12.
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