NOTE:
 Meter Base to be Spotted by Nolin’s Engineering
Department
 3 Phase Meter Base Furnished by Nolin RECC
3 PHASE UNDERGROUND SERVICE FROM
POLE-MOUNTED TRANSFORMER TO
DWELLING/FACILITY
200 or 400 Amp
Meter Base Shall
Have By-Pass
Lever
Strap
Two
Support
Bolts
Required
Detail
Support Bolt
5’ Minimum
6’ Maximum
No. 6 CU Continuous
Ground Wire (City of Etown requires 12” of
bare ground wire from
the meter base and the
rest enclosed in PVC to
3” below ground level)
DIAGRAM NOT TO SCALE
Nolin RECC
Pole
Pull Rope
Approved Ground
Clamps
Final Grade
NOTE:
 PVC
Must be
Flush to
the Wall
36” Radius Elbow
NOTE:
 Secondary
36” Radius
Conduit Must
Elbow
Come up on
Left Hand Side
of Meter Base
6’
Min
City of E-town
requires 10’
minimum
between
ground rods
24”
Conduit Strap
NOTE:
 Ditch Shall be Inspected by Nolin’s Engineering Department
42” Min from
Before Backfilling
Top of Conduit
36” Radius Elbow
NOTE:
 Schedule 80 PVC on all Conduit Above Ground
 From Nolin Pole to Meter use 3” Min Schedule 40 PVC
Minimum 8’ x 1/2” Diameter
Solid Copper Rod or a 5/8
Solid Galvanized Rod
PHONE:
(270) 765-6153
TOLL FREE: (888) 637-4247
Rev. Nov-2013 JG
1 of 2
PHONE:
(270) 765-6153
TOLL FREE: (888) 637-4247
NOTE:
SEWER, GAS, AND WATER
ARE NOT ALLOWED IN THE
SAME DITCH/TRENCH AS
ELECTRIC CONDUIT(S)
DIAGRAM NOT TO SCALE
Rev. Oct-2013 JG
2 of 2
TYPICAL TRENCH
3
7
1.
Before digging dial (811) for Kentucky Underground-Kentucky Law requires area to be marked at least 2 business days prior to digging.
2.
All trenches must be a minimum depth of 48” for primary and 42” for secondary from the top of the conduit.
3.
If trench depth cannot be achieved, contact Nolin’s Engineering Department.
4.
If trench is to be a joint trench (shared with other utilities) the following separations must be maintained:
A. Between gas and electric lines – 60”
B. Between water and electric lines – 60”
C. Between sewer and electric lines – 60”
D. Between communications and electric lines – 12”
5.
If trench is to be electric only, the ditch must be wide enough to accommodate the conduit.
6.
If the trench is dug through rough, rocky terrain, the conduit must be bedded with a minimum of 4” of sand.
7.
All conduits must be Schedule 40 Electrical PVC unless Schedule 80 PVC is specified.
8.
When secondary service comes out of ground Schedule 80 PVC conduit must be used.
9.
All primary conduits (7200V) must be at least 2” diameter with 36” radius long sweeping elbows. Please call Nolin’s Engineering Department prior to
installation.
10. Secondary (120/240V) conduit for a 200 Amp service must be a minimum of 21/2” diameter, with 36” radius long sweeping elbows. Please call Nolin’s
Engineering Department prior to installation.
11. Secondary (120/240V) conduit for a 400 Amp service must be a minimum of 3” diameter, with 36” radius long sweeping elbows. Please call Nolin’s Engineering
Department prior to installation.
12. Only when using 3” conduit can there be more than 180° of bend (2- 90° bends or 1- 90° & 2- 45°) in any one run of conduit, primary or secondary, between
devices.
13. All primary and secondary conduit installations must be approved by Nolin’s Engineering Department prior to covering conduit with dirt.
14. Polypropylene pull string must be installed in all conduits, primary and/or secondary.
15. Where transformers and primary or secondary junction boxes are to be installed, specifications must be obtained from Nolin’s Engineering Department.
16. After the trench is dug and conduit installed with pull string, call Nolin’s Engineering Department (270-765-6153) to have an inspection scheduled.
17. After the trench and the conduit are inspected, the trench may be back-filled.
Rev. Oct-2013 JG
1 of 2 PHONE:
(270) 765-6153
TOLL FREE: (888) 637-4247
METERBASE LOCATION OPTIONS Notes: 1. All meter (service entrance) locations must be spotted by Nolin’s Engineering Department prior to the start of
construction.
2. All new or upgraded commercial, industrial, farm and residential services must be installed underground.
3. All residential meter bases must be equipped with a lever by-pass. The ampacity must be stamped on all bases and the
Underwriters Lab seal attached.
4. Meters must remain accessible at all times.
5. Meters should not be located in areas which are inconvenient to enter or where privacy is desired.
6. New service entrance location shall be approved by Nolin’s Engineering Department prior to installation.
7. If service entrance equipment extends through a roof or the service conductors must cross over a roof, the service
entrance equipment shall be of adequate strength and height to provide minimum code clearance for service.
8. Meters should be located so accessibility will not be obstructed by future alterations or additions.
Inspection: The above requirements must meet or exceed N.E.C., NESC inspections by a certified electrical inspector.
Rev. Sept-2013 JG 2 of 2 PHONE:
(270) 765-6153
TOLL FREE: (888) 637-4247
ALL NEW OR UPGRADED COMMERCIAL,
INDUSTRIAL, FARM AND RESIDENTIAL
SERVICES MUST BE INSTALLED
UNDERGROUND
Overhead Type Meter Bases
1. 100 ampere round meter base with sealing ring.
a. Suitable for shops, garages, barns, silos and pumps. May not be used for any residential, commercial or
industrial building.
b. Not to be used with a 125 ampere or larger entrance.
c. Four (4) terminals lay-in type for #6 to #3 copper conductors-neutral not to be cut, placed under washer.
2. 100 ampere to 150 ampere box type meter base, ringless.
a.
b.
c.
d.
e.
f.
Suitable for apartments, shops and garages for residential dwelling.
Four (4) terminals lay-in type for #4 to 3/0 copper conductors.
Top hub sizes up to 2 1/2".
Knockouts, sides, bottom, back up to 2".
Solidly grounded neutral bar with two terminals lay in type up to 3/0 copper.
Lever operated by-pass.
3. 200 ampere box type meter base, ringless.
a.
b.
c.
d.
e.
Four (4) terminals lay-in type up to 250 MCM copper conductors.
Lever by-pass.
Top hub sizes up to 3".
Knockouts sides, bottom, back up to 2".
Solidly grounded neutral bar with two terminals lay in type up to 250 MCM copper conductors.
Underground Box Type Meter Bases, Ringless
1. 200 ampere, ringless, suitable for underground entrances requiring 200 ampere or less entrance.
a.
b.
c.
d.
e.
No hub in top, two knockouts in bottom up to 2 1/2" sides and back up to 2".
Three terminals on power side to be 1/2" cadmium steel studs, nuts and belleville washers.
Three terminals on load side to be lay-in type up to 250 MCM copper conductors.
Solidly grounded neutral bar with two terminals.
Lever by-pass.
400 Ampere, Ringless, Special Underground Construction
a. This is a special type meter base requiring single or parallel lugs, bolted with 1/2" cadmium steel studs,
nuts and belleville washers.
b. The top three lugs shall be removed for underground entrance.
c. Use 320 ampere, plug-in style base with lever by-pass.
d. Top to be fitted with blank cover for underground or with proper size hub for overhead.
e. Two bottom knockouts up to 3", sides and back up to 2".
f. Solidly grounded neutral bar with two 1/2" cadmium steel studs, and belleville washers, and appropriate
lugs.
Inspection: The above requirements must meet or exceed N.E.C., NESC inspections by a certified electrical inspector.
Rev. Sept-2013 JG