DATE
REVISED
DATE
REVISED
DATE
FILMED
DATE
FILMED
FED.RD.
DIST.NO.
STATE
6
ARK.
FED.AID PROJ.NO.
SHEET
NO.
TOTAL
SHEETS
JOB NO.
FLASHING BEACON DETAILS
2
DETAIL OF
SIGN SUPPORT ASSEMBLY
WIRING DIAGRAM
3C/14 A.W.G.
120 V.A.C. Electrical Service
from local utility
Y
Y
3C./#14 A.W.G. Min.
Size may vary with
distance to Local
Stainless steel
at 18"
Utility
bands placed
spacing.
METAL BAND OR CLAMP
FLASHING BEACON CONTROLLER
3 LB. U-CHANNEL POST
NEMA 3R WEATHER TIGHT
ENCLOSURE WITH 15 AMP
1"0 GALVANIZED STEEL
DISCONNECT
CONDUIT
#8 SOLID COPPER GROUND WIRE
UTILITY POLE GROUND
3C./#14 AWG signal cable
BOND SAFETY GROUND
TO CHASSIS
NOTES:
1.
All
construction shall
conform to Arkansas State Highway Commission Standard
Specifications for Highway Construction, Edition of 2003, Division 700, Traffic
TYPICAL
WEATHERHEAD
Control Facilities.
INSTALLATION
2.
The flashing beacon assembly shall
include lightning
suppressors, Traffic
Signal Cable, two 12" Traffic Signal Heads (1 Sec., 1 Way) with yellow lenses,
HORIZONTAL SIGN SUPPORT
Flashing Beacon Controller and a solid state calender date time clock with daylight
savings time programming and 48 hour power fail
1 1/2 " CROSS CONNECTOR WITH CAP
required only for school
zones. Signal
protection. Date time clock
heads shall be wired to flash alternately.
SERVICE POLE
3.
SEALING CAP
Any fittings, bands, ground rod or accessories necessory to mount Conduit and
Flashing Beacon Controller shall
Y
Y
be considered subsidiary to the item for Flashing
Beacon Controller.
CIRCUIT BREAKER IN
12" YELLOW FLASHING BEACONS
WEATHERPROOF BOX
4.
10 ’
STEEL CONDUIT
MIN.
1 1/2 " TEE WITH CAP
couplings, tees, clamps and hardware necessary to mount signal
heads shall
installed.
FLASHING BEACON CONTROLLER
WITH TIMECLOCK
AHEAD
All
be considered subsidiary to the item for Traffic Signal Head (1 Sec., 1 Way).
Contractor shall remove signs and re-install them after flashing beacons are
1 1/2 "0 GALVANIZED
SADDLE CLAMPS
5.
The City or County shall
a service point and
be responsible for providing, through a local
utility company,
power to the Flashing Beacon Controller.
This note applies only when used at a school
3LB. U-CHANNEL POST
location.
SIGN & SUPPORT BY OTHERS
1"0 GALVANIZED STEEL CONDUIT
2’0"
MINIMUM
6’0"
MIN.
BANDED TO POST
1"0 GALVANIZED STEEL CONDUIT
BANDED TO POST
5 ’
POLE BANDS, 18" SPACING
POLE BANDS, 18" SPACING
#8 A.W.G. Bare copper wire bonded to
Ground Rod and Cabinet.
1’6"
4-10-08
stdfb2.dgn
1’6"
8’ x 5/8 " Ground Rod
2’6"
MINIMUM
DEPTH
1" O N.M.C.
ARKANSAS STATE HIGHWAY COMMISSION
4-17-08
MINOR REVISIONS
11-3-97
ISSUED
DATE
REVISION
FLASHING BEACON INSTALLATION
FOR HAZARDOUS CONDITIONS
AND SCHOOL ZONES
DATE FILM