Page 729 - 2018_IRC

SERVICES

3-FOOT CLEARANCE
CLEARANCE NOT REQUIRED FROM
NONOPENABLE WINDOWS

CLEARANCE NOT REQUIRED ABOVE OPENINGS

CLEARANCE NOT REQUIRED BETWEEN WINDOW
AND SE CABLE OR CONDUCTORS IN RACEWAY

For SI: 1 foot = 304.8 mm.
FIGURE E3604.1
CLEARANCES FROM BUILDING OPENINGS

electric service entrance to buildings, at the lowest power service drop or overhead service conductors shall be
point of the drip loop of the building electric attached to a service mast.
entrance, and above areas or sidewalks accessed by E3604.5.1 Strength. The service mast shall be of ade-
pedestrians only. Such clearance shall be measured quate strength or shall be supported by braces or guys to
from final grade or other accessible surfaces. safely withstand the strain imposed by the service-drop or
2. Twelve feet (3658 mm)—over residential property overhead service conductors. Hubs intended for use with a
and driveways. conduit that serves as a service mast shall be identified for
3. Eighteen feet (5486 mm)—over public streets, use with service-entrance equipment.
alleys, roads or parking areas subject to truck traffic. E3604.5.2 Attachment. Service-drop or overhead service
[(230.24(B)(1), (2), and (4)] conductors shall not be attached to a service mast at a
E3604.3 Point of attachment. The point of attachment of the point between a coupling and a weatherhead or the end of
overhead service conductors to a building or other structure the conduit, where the coupling is located above the last
shall provide the minimum clearances as specified in Sec- point of securement of the building or other structure or is
tions E3604.1 through E3604.2.2. The point of attachment located above the building or other structure. [230.28(A)
shall be not less than 10 feet (3048 mm) above finished grade. & (B)]
(230.26) E3604.6 Supports over buildings. Service conductors pass-
E3604.4 Means of attachment. Multiconductor cables used ing over a roof shall be securely supported by a substantial
for overhead service conductors shall be attached to buildings structure. For a grounded system, where the substantial struc-
or other structures by fittings approved for the purpose. ture is metal, it shall be bonded by means of a bonding jumper
(230.27) and listed connector to the grounded overhead service conduc-
tor. Where practicable, such supports shall be independent of
E3604.5 Service masts as supports. A service mast used for the building. (230.29)
the support of service-drop or overhead service conductors
shall comply with Sections E3604.5.1 and E3604.5.2. Only

704 2018 INTERNATIONAL RESIDENTIAL CODE ®
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