cae-1700951-e002 signed.pdf

c a e -1

-e

.d g n

/1

/2

:4

:3

A

M O c ta w n C a rt e r

A

B

C

D

E

F

G

H

8 7 6 5 4 3 2 1

H

G

F

E

D

C

12345678

REVDRAWING NO

DATE JCN

APPROVED BY

ISSUED BY

CHECKED

DRAWN

DESIGNED

SUBMITTED BY

REVIEWED BY

FEDERAL AVIATION ADMINISTRATION

DEPARTMENT OF TRANSPORTATION

REV

DATE

APPROVED

DESCRIPTION JCN

DATE

REDLINE

APVD

A

INSIDE JUNCTION BOX

LEAVE 3' COILED

4/0 BARE IN 1-1/4" PVC

(TYP)

LADDER RUNG

TO TOWER

LADDER ATTACHED

FOUNDATION

TOWER

LEGEND

4/0

6 4 5

TOWER WITH BEAM CLAMPS

1 5/8"x 1 5/8" ATTACH TO

STAINLESS STEEL STRUT

CORNERS

TYPICAL OPPOSITE

TO COUNTERPOISE

2 22

J-BOX

CONDUIT, PVC 4"

CONDUIT, PVC 1-1/4"

A

E002

28R EVERY 3 FT)

CABLE CLAMP, THOMPSON #142 OR EQUAL (SUPPORT THOMPSON

NOTES

4/0 AWG BARE COPPER, 28 STRANDS, WT 660 LBS/1000 FT

PIPE CLAMP, THOMPSON #240X OR EQUAL

PARALLEL CLAMP, THOMPSON #4248 OR EQUAL

GROUND ROD, COPPER CLAD 3/4" DIA x 10'

STANDARD STEEL PIPE, GALV 2"x 21 FEET LONG (WATER PIPE)

AIR TERMINAL, 5/8"x 3', THOMPSON #667 OR EQUAL

VERTICAL CONNECTOR, THOMPSON #690 OR EQUAL10

U-BOLT, 2" WITH SELF LOCKING NUTS, SS

28 STRANDS,

WT 375 LBS/1000'. THOMPSON 28R OR EQUAL DOWN CONDUCTOR,

M A

X

OR EQUAL

THOMPSON NO 690

ELECT CONNECTOR

GALV WATER PIPE

2"x 21'

SEE DRAWING E003

COUNTERPOISE

TIE TO BUILDING

SEE DRAWING E003

COUNTERPOISE

TIE TO BUILDING

SEE NOTE 7

G R

A T

IN

G

H A

T C

H A

C C

E S

S

L A

D D

E R

5 6

THE J-BOX

COILED INSIDE

3'THOMPSON 28R

LEAVE 2 EACH

NOT TO SCALEE002

PLATFORM PLAN VIEW 4

NOT TO SCALEE002

TOWER CONDUIT SECTION 5

NOT TO SCALEE002

AIR TEMINAL ASSEMBLY

NOT TO SCALEE002

TOP OF TOWER JUNCTION BOX ELEVATION 2

NOT TO SCALEE002

TOWER CONDUIT ELEVATION

A

NOT TO SCALEE002

LADDER GROUNDING SECTION

TOWER LEGS

ON OPPOSITE

EACH INSTALLED

(TYP OF 2)

SEE NOTE 8

OF LADDER

4/0 TO BACK

JUNCTION BOX

GROUNDING INTO

CONDUIT FOR

PURPOSES.

INSTALL 4-4 IN PVC CONDUITS, NUMBER OF CONDUITS SHOWN HERE ARE FOR ILUSTRATION 9.

HAZARD.

4/0 AWG EXOTHERMICALLY BOND TO BACK OF LADDER NEAR ITS BASE TO AVOID TRIPPING 8.

THOMPSON 28R CADWELDED TO TOWER FRAME.7.

AND BURIED 2 FT DEEP.

ALL COUNTERPOISE SHALL BE PLACED 2 TO 6 FT AWAY FROM CONCRETE FOUNDATIONS 6.

SECURE DOWN CONDUCTOR T0 4/0, A MINIMUM OF 6" BELOW THE EXOTHERMIC WELD.

EACH,(TYPICALLY OPPOSING LEGS). USE PARALELL CLAMP THOMPSON #4248 OR EQUAL TO

EXOTHERMIC WELD 4/0 AWG TO TOWER LEG A MINIMUM OF 18" ABOVE FOUNDATION, 2 5.

INSTALL LADDER ON OPPOSITE SIDE OF JUNCTION BOX.4.

ALL GROUNDING CONNECTIONS BELOW GRADE BY EXOTHERMIC WELD.3.

THAN 12".

INSTALL DOWN CONDUCTOR WITH A MINIMUM OF BENDS AND NO SHARP BENDS OF LESS 2.

APPROVED EQUAL. CONDUCTOR SHALL REMAIN TIGHT BETWEEN CLAMPS

OF THE PLATFORM, AND DOWN THE TOWER LEG WITH THOMPSON CABLE CLAMP #142 OR

SUPPORT THE DOWN CONDUCTOR AT A MINIMUM OF 3'-0" SPACING AROUND THE PERIMETER 1.

WELD

EXOTHERMIC

TOWER LEGS

ON OPPOSITE

EACH INSTALLED

(TYP OF 2)

SEE NOTE 5

TO COUNTERPOISE

SEE NOTE 9

STRUCTURE (TYP)

CADWELD TO

FIBERGLASS J-BOX

36"x 30"x 10"

SS UNISTRUT FRAME

CAP

PIPE

SEE NOTE 4

JUNCTION BOX,

SEE NOTE 9

E D

M

IS

S

U E

D F

O R

ENGINEERING SERVICES

COMMUNICATIONS

RCAG

ANTENNA TOWER LIGHTNING PROTECTION

TOWER REPLACEMENT

SCCOLUMBIA METROPOLITAN AIRPORTCOLUMBIA

Stacey L. RainesFrancisco J. Cortes

RC

FC

PROJECT ENGINEER MGR: ENGINEERING - CENTER A

05/29/2020 1700951

CAE-1700951-E002 A

05/07/20211700951CONSTRUCTION (J.CORTES) DS05/07/2021A

c a e -1

-e

.d g n

THIS DRAWING PRODUCED ON ASO REGION MICROSTATION SYSTEM

ATO - TECHNICAL OPERATIONS EASTERN SERVICE AREA

C O

N S

T R

U C

T

IO

N

ORIGINAL SIGNED BY: ORIGINAL SIGNED BY:

SEE NOTE 9

BOX ON BUILDING

CONDUIT TO JUNCTION