ATT_J_-_Trench_and_Grounding_Details.pdf

Revisions

Symbol Descriptions Date Approved

DIRECTORATE OF ENGINEERING & HOUSING

FORT HOOD, TEXAS

PROJECT NO.

SHEET OF

SCALE REDUCED

0 1/2 ’’ 1’’ 2’’

REVEIWED BY:

DRAWING

DMI NO.DATE:

SCALE:

DRAWN BY:

DESIGNED BY:

AS NOTED

SEQ. NO.

Revisions

Symbol Descriptions Date Approved

DIRECTORATE OF ENGINEERING & HOUSING

FORT HOOD, TEXAS

PROJECT NO.

SHEET OF

SCALE REDUCED

0 1/2 ’’ 1’’ 2’’

REVEIWED BY:

DRAWING

DMI NO.DATE:

SCALE:

DRAWN BY:

DESIGNED BY:

AS NOTED

SEQ. NO.

NO SCALE

BUTT-WRAPPED GROUND DETAIL

12’-0" MIN.

4 TURNS #6 BSD CU

AS REQUIRED

GALVANIZED STAPLES

STAPLED AS REQUIRED

WIRE 6 TURNS MIN.

#6 BSD CU GROUND

GROUND WIRE

(2 REQ’D)

BUSHING

GROUNDING

1/2 " IMC

(2 REQ’D)

PIPE STRAP

GROUND WIRE (2 REQ’D)

SIZED TO MATCH

BSD COPPER JUMPER

FINISHED GRADE

GROUND WIRE MOLDING

NOTE: REQ’D FOR EACH GROUND WIRE

SCALE: NONE

GROUND LINE PROTECTION DETAIL

18" 14" 20"

TRENCH AND GROUNDING DETAILS

1 1

4"MIN.

6"MIN.

O.D.

S A

N D

B E

D

TOP OF FINISHED GRADE

4 MIL MINIMUM X 6-INCH WIDE, POLYETHYLENE

IDENTIFYING LETTERING (1750 PSI LENGTHWISE

COMPACT EACH LAYER TO 95% MAXIMUM DENSITY.

BACKFILL MATERIAL CLASSIFIED SATISFACTORY; PLACE

IN LIFTS NOT EXCEEDING 6 INCHES (LOOSE) FOR HAND

OPERATED MACHINE COMPACTORS (8" FOR OTHERS).

X 1500 PSI CROSSWISE MINIMUM STRENGTH).

12"

36" MINIMUM FOR PRIMARY

24" MIN. FOR SECONDARY

CONDUIT

FOR TRENCH

3 TIMES

CONDUIT DIA.

WIDTH (12" MIN.).

MARKING TAPE (NO FOIL BACKING), RED, WITH

SANDBEDDING FOR SECONDARY, 3000 PSI CONCRETE

(RED) FOR PRIMARY.

PRIMARY OR SECONDARY CABLES IN CONDUIT SIZED

PER N.E.C. (CENTERED IN TRENCH). MIN SCH.40 PVC

DETAIL FOR UNDERGROUND ELECTRICAL PRIMARY OR SECONDARY

WITH TRANSITION TO STEEL LONG RADIUS ELBOW AT

RISE TO OVERHEAD. ( 1 PH.-2" MIN & 3 PH. - 4" MIN.)

N.T.S.

WALTER THOMAS

WALTER THOMAS

WALTER THOMAS

5/5/2003

Attachment J - Trench and Grounding Details For Bidding Purposes Only

TE J - 1 02.01.2016