ctor to have
service connected.
The customer is responsible for providing,
installing, and maintaining all equipment from the
point of delivery except for the meter.
NAED is responsible for providing and installing the
meter, completing the connections between the meter
and the service conductors, and making the final
connections at the point of delivery. If CTs are
being used, NAED also provides the CTs and makes the
connections to them and to the meter.








10 Service Requirements Handbook_____________



OVERHEAD INSTALLATION

Transformer
Weatherhead
Service entrance conductor
Service mast
Splice (point of delivery)
Service Line
Power pole
Meter
Meter socket
Service mast guy
Point of attachment
Service panel





Figure 2-1


Figure 2-1 shows a finished installation of overhead
service, using a service mast. The customer provides
everything shown here, except the meter, the overhead
service line, and the power pole and pole-mounted
equipment.
After the customer installs the required equipment,
NAED installs the meter in the meter socket, installs
the service line, attaches the service line
supporting wire (neutral) to the insulated clevis,
and splices the conductors together.



______________________________________Overhead Services 11




Overhead Line Clearances






Figure 2-2
Clearances from ground

The illustration above and on the next page, show
clearances under overhead lines, for the conditions
most commonly encountered. For other situations and
for details, see the National Electric Code, the
National Electric Safety Code, or contact the
electrical inspector. The customer does not install
the service conductor, but is required to provide a
point of attachment high enough and strong enough, to
allow NAED to install the service line and maintain
the required clearances.
If the span of the service line exceeds 125 feet, an
intermediate pole may be required to relieve the
tension on the service.
12 Service Requirements Handbook_____________











Figure 2-3


Clearances over other structures

If the service line will pass through trees, the
customer must prune the trees to provide a clear path
for the line. NAED is responsible for regular tree
trimming, and if necessary, tree removal to keep the
path clear.
If the service line will pass over brush, the
customer must clear a path for NAEDS installation
service personnel.




______________________________________Overhead Services 13
TYPICAL OVERHEAD SERVICE
An eyebolt is required on all new services to provide
adequate support for the service drop. NAED will
supply the eyebolt for installation by the customer.
Only NAED supplied bolt or approved equivalent is
allowed. Typical location will be within 6 of the
left or right front corner of the building. Fig. 2-4
shows details of a typical overhead service.



Figure 2-4 14 Service Requirements Handbook_____________

SERVICE MAST, SURFACE-MOUNT METER

Figure 2-5 shows details of a service mast, with the
meter on the surface of the building. The service
shall be wired to an exterior meter as shown here.
The customer installs everything in the picture,
except the meter.
After the customer installs the service equipment,
NAED installs the meter in the meter socket, installs
the service line, attaches the service line
supporting wire (neutral) to the clevis, and connects
the conductors together.


























______________________________________Overhead Services 15




Conduit
Size
Service
Length
2
100
2-½
120
3
120













Figure 2-5 16 Service Requirements Handbook_____________

OVERHEAD SERVICE, TEMPORARY

Figure 2-6 shows a finished installation for
temporary service, using a meter post. From the post,
the service to the building could be overhead or
underground. The customer provides and maintains:

6x6x16 min. service structure as shown

Service entrance cable

Meter socket and disconnect device

Ground rod and grounding conductor

The maximum distance from the nearest pole to the
service structure is 75 ft.

After the customer installs the service equipment,
NAED installs the meter in the meter socket and
installs the service drop.





















______________________________________Overhead Services 17


Notes:
All timbers to be sound
Min. of 4 20d nails at each joint
Where it is necessary to cross a highway, additional
height and support will be necessary.
Figure 2-6 18 Service Requirements Handbook_____________
OVERHEAD SERVICE, METER POLE

Figure 2-7 illustrates an overhead service to a
privately owned pole. From the pole, the service
could be overhead to the building, or underground as
shown here. The customer provides everything in the
picture, except the meter and the overhead service
line.
After the customer installs the service equipment,
NAED installs the meter in the meter socket, the
service drop, attaches the service line supporting
wire (neutral) to the eyebolt, and connects the
conductors together.

24"
Service line
Eyebolt
Ground rod
Ground wire
6' min. with
gravel backfill
Customer-owned
service wire
Anchor
Guy, 5/16 inch min.,
galvanized steel cable
Meter
Meter socket and
disconnect switch
Fully treated
meter pole
Service entrance conductors,
18 in. out of weatherhead
Point of delivery (splice)
6' max.
5' preferred
4' min.



Figure 2-7 ______________________________________Overhead Services 19

Overhead Span Distances

The maximum single-span distance the Company will run
its overhead residential service drop conductors to
the point of attachment for 100-200 amp service
entrance is approximately 125 feet. Building heights,
large conductors, the necessity for street, driveway,
sidewalk crossings and other possible factors may
reduce the maximum permissible spans.






























20 Service Requirements Handbook_____________