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// CODE SNIPPET

Section E3604 Overhead Service and Service-Entrance Conductor Installation

2014 FBC - Residential, 5th edition > 36 Services > E3604 Overhead Service and Service-Entrance Conductor Installation
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E3604.1 Clearances on Buildings

Open conductors and multiconductor cables without an overall outer jacket shall have a clearance of not less than 3 feet (914 mm) from the sides of doors, porches, decks, stairs, ladders, fire escapes and balconies, and from the sides and bottom of windows that open. See Figure E3604.1.

For SI: 1 foot = 304.8 mm.

FIGURE E3604.1
CLEARANCES FROM BUILDING OPENINGS

E3604.2 Vertical Clearances

Overhead service conductors shall not have ready access and shall comply with Sections E3604.2.1 and E3604.2.2.

E3604.2.1 Above Roofs

Conductors shall have a vertical clearance of not less than 8 feet (2438 mm) above the roof surface. The vertical clearance above the roof level shall be maintained for a distance of not less than 3 feet (914 mm) in all directions from the edge of the roof. See Figure E3604.2.1.

Exceptions:
  1. Conductors above a roof surface subject to pedestrian traffic shall have a vertical clearance from the roof surface in accordance with Section E3604.2.2.
  2. Where the roof has a slope of 4 inches (102 mm) in 12 inches (305 mm), or greater, the minimum clearance shall be 3 feet (914 mm).
  3. The minimum clearance above only the overhanging portion of the roof shall not be less than 18 inches (457 mm) where not more than 6 feet (1829 mm) of overhead service conductor length passes over 4 feet (1219 mm) or less of roof surface measured horizontally and such conductors are terminated at a through-the-roof raceway or approved support.
  4. The requirement for maintaining the vertical clearance for a distance of 3 feet (914 mm) from the edge of the roof shall not apply to the final conductor span where the service drop is attached to the side of a building.
  5. Where the voltage between conductors does not exceed 300 and the roof area is guarded or isolated, a reduction in clearance to 3 feet (914 mm) shall be permitted.
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.

FIGURE E3604.2.1
CLEARANCES FROM ROOFS

E3604.2.2 Vertical Clearance From Grade

Overhead service conductors shall have the following minimum clearances from final grade:

  1. For conductors supported on and cabled together with a grounded bare messenger wire, the minimum vertical clearance shall be 10 feet (3048 mm) at the electric service entrance to buildings, at the lowest point of the drip loop of the building electric entrance, and above areas or sidewalks accessed by pedestrians only. Such clearance shall be measured from final grade or other accessible surfaces.
  2. Twelve feet (3658 mm)—over residential property and driveways.
  3. Eighteen feet (5486 mm)—over public streets, alleys, roads or parking areas subject to truck traffic.

E3604.3 Point of Attachment

The point of attachment of the service-drop conductors to a building or other structure shall provide the minimum clearances as specified in Sections E3604.1 through E3604.2.2. In no case shall the point of attachment be less than 10 feet (3048 mm) above finished grade.

E3604.4 Means of Attachment

Multiconductor cables used for overhead service conductors shall be attached to buildings or other structures by fittings approved for the purpose.

E3604.5 Service Masts as Supports

Where a service mast is used for the support of service-drop conductors, it shall be of adequate strength or be supported by braces or guys to withstand the strain imposed by the service drop. Where racewaytype service masts are used, all equipment shall be approved. Only power service drop conductors shall be permitted to be attached to a service mast.

E3604.6 Supports Over Buildings

Service conductors passing over a roof shall be securely supported. Where practicable, such supports shall be independent of the building.

Related Code Sections


Section E3604 Services, Overhead Service and Service- Entrance Conductor Installation
Overhead service conductors shall not have ready access and shall comply with Sections E3604.2.1 ...
2017 FBC - Residential, 6th edition > 36 Services > E3604 Overhead Service and Service- Entrance Conductor Installation
Section E3604 Services, Overhead Service and Service-Entrance Conductor Installation
Overhead service conductors shall not have ready access and shall comply with Sections E3604.2.1 and E3604.2.2 ...
2014 FBC - Residential, 5th edition > 36 Services > E3604 Overhead Service and Service-Entrance Conductor Installation
E3604.1 Services, Clearances on Buildings
Open conductors and multiconductor cables without an overall outer jacket shall have a clearance of not less than 3 feet (914 mm) from the sides ...
2017 FBC - Residential, 6th edition > 36 Services > E3604 Overhead Service and Service- Entrance Conductor Installation > E3604.1 Clearances on Buildings
E3604.3 Services, Point of Attachment
The point of attachment of the overhead service conductors to a building or other structure shall provide the minimum clearances as specified ...
2017 FBC - Residential, 6th edition > 36 Services > E3604 Overhead Service and Service- Entrance Conductor Installation > E3604.3 Point of Attachment
E3604.3 Services, Point of Attachment
The point of attachment of the service-drop conductors to a building or other structure shall provide the minimum clearances as specified in Sections ...
2014 FBC - Residential, 5th edition > 36 Services > E3604 Overhead Service and Service-Entrance Conductor Installation > E3604.3 Point of Attachment
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