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DIRECT BURIED CONDUIT




Underground Electric Distribution Standards

Revised: February 20, 2008
Revised By: SGL
Approved By: KKR
DIRECT BURIED CONDUIT
DB 1
DIRECT BURIED CONDUIT
CONSTRUCTION NOTES
1.
Install plug on all empty or temporary conduit openings. See identification section for conduit/cable
marker plate.
2.
Markers should be installed at the ends of all conduit and ells.
3.
Call for plates UC on a per foot basis
4.
See cable section for conduit size to be used.
5.
All conduit in the same trench will be installed at the bottom of the trench arranged as shown in the
standard for Installation of Conduit in Trench.
5.1
. A standard 48 deep trench will be used when installing all conduit.
5.2
. Other depths may be specified by the engineer on an individual basis.

ADDITIONAL PLATES
PLATE
DESCRIPTION
UNIT
FOAM-DUCT
EXPANDING FOAM TO SEAL AROUND CABLES
EA (LABOR ONLY)
PLUG-DUCT1
1 - 1 PVC CONDUIT CAP
EA
PLUG-DUCT2
1 - 2 PVC CONDUIT PLUG (I.CODPL001)
EA
PLUG-DUCT3
1 - 3 PVC CONDUIT PLUG (I.CODPL002)
EA
PLUG-DUCT4
1 - 4 PVC CONDUIT PLUG (I.CODPL003)
EA
PLUG-DUCT6
1 - 6 PVC CONDUIT PLUG (I.CODPL004)
EA


PLATE
DESCRIPTION
UNIT
I.CODCO003
2 PVC SCH-40 LONG LINE COUPLING
EA
I.CODCO004
3 PVC SCH-40 LONG LINE COUPLING
EA
I.CODCO005
4 PVC SCH-40 LONG LINE COUPLING
EA
I.CODCO006
6 PVC SCH-40 LONG LINE COUPLING)
EA
I.CODCO025
1 PVC SCH-40 LONG LINE COUPLING
EA











Underground Electric Distribution Standards

Revised: April 1, 2004
Revised By: SGL
Approved By: KKR
DIRECT BURIED CONDUIT
DB - 2
GENERAL
The work under this section consists of installing Single Conduit or Multiple Conduit in Trench, backfilling
and compacting.
MATERIAL
One, Two, Three, Four, or Six inch PVC Conduit or Galvanized Steel Conduit.
1.
Conduit Material Specifications:
1.1. One, Two, Three, Four, or Six inch Schedule 40 PVC Conduit or Schedule 40 Galvanized
Steel Conduit. Different conduit may be specified for special applications. All conduit material
shall meet the material specifications of JEA.
1.2. Do not install DB60 or DB120 PVC Conduit in direct buried systems.


ALIGNMENT
PVC is sufficiently flexible to allow it to conform to minor changes in trench direction or elevation. Any other
bends shall be made using pre-formed sweeps. PVC 5 degree bend couplings will not be used.


BACKFILLING
The backfill surrounding the duct(s) shall be compacted in accordance with the manufacturers
recommendations. Such backfill shall extend to 6 above the top of the Conduit or conduits. Above that level
backfill and compaction shall be carried out as specified under excavation, backfill, & compaction
paragraphs of the Earthwork section.
MARKING TAPE
Marking tape shall be installed as specified on an individual basis (See UCT plate).
MINIMUM COVER REQUIREMENTS
Standard depth of trench will be 48 (to bottom of trench). Other depths may be specified on an individual
basis.




Underground Electric Distribution Standards

Revised: February 20, 2008
Revised By: SGL
Approved By: KKR
DIRECT BURIED CONDUIT
DB 3




Underground Electric Distribution Standards

UC * _ _
INSTALLATION OF CONDUIT IN TRENCH


PLATE
ITEM I.D.
SIZE
UC*1
CODPC016
1
UC*2
CODPC019
2
UC*3
CODPC020
3
UC*4
CODPC003
4
POLYVINYL
CHLORIDE (PVC)
SCHEDULE 40
UC*6
CODPC005
6
UC*2S
CODST006
2
UC*3S
CODST008
3
UC*4S
CODST009
4
GALVANIZED
STEEL
UC*6S
CODST010
6

NOTES:
1.
PVC cement must be itemized. Issue one (1) quart can, item I.ADCMI002, for each
500 linear feet of conduit, or for each 25 conduit joints.
2.
Install warning tape as specified on UCT plate.
3.
Minimum separation of 2 between conduits carrying conductors of the same voltage.
Minimum separation of 6 between conduits carrying conductors of different voltage.
Revised: April 1, 2004
Revised By: SGL
Approved By: KKR
DIRECT BURIED CONDUIT
DB - 4




Underground Electric Distribution Standards

UCL9*_
INSTALLATION OF CONDUIT ELL



PLATE
ITEM
DESCRIPTION
QTY
RADIUS
UCL9*1
CODEP024
1 90°
1
18
UCL9*2
CODEP002
2 90°
1
48
UCL9*3
CODEP004
3 90°
1
36
UCL9*4
CODEP006
4 90°
1
36
UCL9*6
CODEP009
6 90°
1
48
UCL4*2
CODEP001
2 45°
1
36
UCL4*3
CODEP003
3 45°
1
36
UCL4*4
CODEP005
4 45°
1
36
UCL4*6
CODEP010
6 45°
1
48
SCH 40 CONDUIT
UCL4*1
CODEP025
1 45°
1
18
UCL9*2S
CODEP002
2 90°
1
9 3/4
UCL9*3S
CODEP004
3 90°
1
13
UCL9*4S
CODEP006
4 90°
1
36
GALVANIZED STEEL
UCL9*6S
CODEP007
6 90°
1
48
SPECIAL SCH-40 PVC
UCL9* CODEP008 6-90° 1 150

Revised: April 1, 2004
Revised By: SGL
Approved By: KKR
DIRECT BURIED CONDUIT
DB 5