Page 731 - 2018_IRC

SERVICES

tion to a raceway or enclosure and at intervals not exceeding able at its supply terminals, but not less than 10,000 amperes.
30 inches (762 mm). [230.51(A)] (110.9)
E3605.8 Raceways to drain. Where exposed to the weather, E3606.4 Marking. Service equipment shall be marked to
raceways enclosing service-entrance conductors shall be identify it as being suitable for use as service equipment. Ser-
listed or approved for use in wet locations and arranged to vice equipment shall be listed or field labeled. Individual
drain. Where embedded in masonry, raceways shall be meter socket enclosures shall not be considered as service
arranged to drain. (230.53) equipment but shall be listed and rated for the voltage and
E3605.9 Overhead service locations. Connections at service ampacity of the service. (230.66)
heads shall be in accordance with Sections E3605.9.1 through Exception: Meter sockets supplied by and under the
E3605.9.7. (230.54) exclusive control of an electric utility shall not be required
E3605.9.1 Rain-tight service head. Service raceways to be listed. (230.66 Exception)
shall be equipped with a service head at the point of con-
nection to service-drop or overhead conductors. The ser-
vice head shall be listed for use in wet locations. SECTION E3607
[230.54(A)] SYSTEM GROUNDING
E3607.1 System service ground. The premises wiring sys-
E3605.9.2 Service cable, service head or gooseneck. tem shall be grounded at the service with a grounding elec-
Service-entrance cable shall be equipped with a service trode conductor connected to a grounding electrode system as
head or shall be formed into a gooseneck in an approved required by this code. Grounding electrode conductors shall
manner. The service head shall be listed for use in wet be sized in accordance with Table E3603.4. [250.20(B)(1)
locations. [230.54(B)]
and 250.24(A)]
E3605.9.3 Service-head location. Service heads on race- E3607.2 Location of grounding electrode conductor con-
ways or service-entrance cables, and goosenecks in ser- nection. The grounding electrode conductor shall be con-
vice-entrance cables, shall be located above the point of nected to the grounded service conductor at any accessible
attachment of the service-drop or overhead service con- point from the load end of the overhead service conductors,
ductors to the building or other structure. [230.54(C)]
service drop, underground service conductors, or service lat-
Exception: Where it is impracticable to locate the ser- eral to and including the terminal or bus to which the
vice head or gooseneck above the point of attachment, grounded service conductor is connected at the service dis-
the service head or gooseneck location shall be not connecting means. A grounding connection shall not be made
more than 24 inches (610 mm) from the point of attach- to any grounded circuit conductor on the load side of the ser-
ment. [230.54(C) Exception] vice disconnecting means, except as provided in Section
E3605.9.4 Separately bushed openings. Service heads E3607.3.2. [250.24(A)(1) and (A)(5)]
shall have conductors of different potential brought out E3607.3 Buildings or structures supplied by feeder(s) or
through separately bushed openings. [230.54(E)] branch circuit(s). Buildings or structures supplied by
E3605.9.5 Drip loops. Drip loops shall be formed on indi- feeder(s) or branch circuit(s) shall have a grounding electrode
vidual conductors. To prevent the entrance of moisture, or grounding electrode system installed in accordance with
service-entrance conductors shall be connected to the ser- Section E3608. The grounding electrode conductor(s) shall
vice-drop or overhead conductors either below the level of be connected in a manner specified in Section E3607.3.1 or,
the service head or below the level of the termination of for existing premises wiring systems only, Section
the service-entrance cable sheath. [230.54(F)] E3607.3.2. Where there is no existing grounding electrode,
the grounding electrode(s) required in Section E3608 shall be
E3605.9.6 Conductor arrangement. Service-entrance installed. [250.32(A)]
and overhead service conductors shall be arranged so that
water will not enter service raceways or equipment. Exception: A grounding electrode shall not be required
[230.54(G)] where only one branch circuit, including a multiwire
branch circuit, supplies the building or structure and the
E3605.9.7 Secured. Service-entrance cables shall be held branch circuit includes an equipment grounding conductor
securely in place. [230.54(D)]
for grounding the noncurrent-carrying parts of all equip-
ment. For the purposes of this section, a multiwire branch
SECTION E3606 circuit shall be considered as a single branch circuit.
SERVICE EQUIPMENT—GENERAL [250.32(A) Exception]
E3606.1 Service equipment enclosures. Energized parts of E3607.3.1 Equipment grounding conductor. An equip-
service equipment shall be enclosed. (230.62) ment grounding conductor as described in Section E3908
shall be run with the supply conductors and connected to
E3606.2 Working space. The working space in the vicinity the building or structure disconnecting means and to the
of service equipment shall be not less than that specified in grounding electrode(s). The equipment grounding conduc-
Chapter 34. (110.26) tor shall be used for grounding or bonding of equipment,
E3606.3 Available short-circuit current. Service equip- structures or frames required to be grounded or bonded.
ment shall be suitable for the maximum fault current avail- The equipment grounding conductor shall be sized in

706 2018 INTERNATIONAL RESIDENTIAL CODE ®
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