230.24 Clearances

Overhead service conductors where not in Excess of 600 V, nominal, shall have what minimum clearance from final grade? At the electrical service entrance to buildings, also at the lowest point of the drip loop of the building electrical entrance, and above all areas or sidewalks accessible only to pedestrians, or other accessible surface only for overhead service conductors supported on and cabled together with a ground bare messenger where the voltage does not exceed 150 V to ground.

10FT

Overhead service conductors, where not in excess of 600 V nominal, shall have what minimum clearance from final grade? Over residential property and driveways, and those commercial areas not subject to truck traffic where the voltage does not exceed 300 V to ground

12FT

Overhead service conductors, where not in excess of 600 votes, nominal, shall have what minimum clearance from final grade? Over residential property and driveways in those commercial areas not subject to truck traffic where the voltage Exceeds 300 V to ground

15 FT

Overhead service conductors Shall be how many feet over the tracks of railroads?

24 1/2 FT

The vertical clearance above the roof level shall be maintained for a distance of not less than how many feet in all directions from the edge of the roof?

3 FT

Where the Voltage Between conductors does not exceed 300 and the roof has a slope of 4 inch to 12 inch or greater, A reduction in clearance to how many feet shall be permitted?

3FT

Where the voltage between conductors does not exceed 300 and the roof area is guarded or isolated, a reduction in clearance to how many feet shall be permitted?

3FT

Conductors shall have a vertical clearance of not less than how many feet above a roof surface?

8 FT

The requirement for maintaining the vertical clearance of 3 feet from the edge of a roof shall not apply to what?

The final conductor span where the service drop or overhead service conductors are attached to the side of a building.

Overhead service conductors where not in excess of 600 V nominal shall have a minimum clearance of what from final grade? over public streets, alleys, roads, parking areas subject to truck Traffic, driveways on other than residential property, and other land such as cultivated, grazing, forest, and orchard.

18 FT

Where the voltage between conductors does not exceed 300, a reduction in clearance above only the overhanging portion of the roof to not less than 18 inches shall be permitted if there is no more than how many feet of overhead service conductors Passing above the roof overhang? How many feet horizontally? And they must be terminated in what kind of raceway?

6FT 4FT They must be terminated at a through the roof raceway or approved supports