1
2"
1
2"
ETP Alloy 110 Copper
Air Terminal (Class II)
UL-96A Listed
2' Min
ETP Alloy 110 Copper
Air Terminal (Class II)
UL-96A Listed
2' Min
Bond #2 AWG Tin-Plated Bare Solid
Bond #2 AWG Tin-Plated Bare Solid
Copper Ground Wire To The Air
Copper Ground Wire To The Air Terminal.
Terminal. A Steel Pole May Be Used
As A Grounding Conductor If It Has
Bond #6 AWG Tin-Plated
Bond #6 AWG Tin-Plated
Sufficient Cross-Sectional Area To
Bare Solid Copper Wire To
Bare Solid Copper Wire To
Equal The Conductivity Of Main
Camera Support Base As
Camera Support Base As
Lightning Conductors Per NFPA 780
Required.
Required.
And A Minimum Wall Thickness
Of
3
16"
Or Greater.
#2 Wire May Be Routed Internally
Or Externally According To Project
Requirements
#2 AWG Tin-Plated Bare
Dome Type
For Concrete Poles That Do Not Have
Dome Type
Solid Copper Wire.
CCTV Camera
Embedded Ground Wire, Install #2 AWG
CCTV Camera
Tin-Plated Bare Solid Copper Wire. Clamp
To Concrete Pole @ 3' Intervals. Bond To
Air Terminal And Ground Rod With
Exothermic Welds.
1
2"
x 10' PVC Conduit Sleeve Shall Be
Provided To Protect Any External Ground
Wire From Mechanical Damage. Ensure
Conduits Are Sealed To Prevent Water
Intrusion.
Pole Mounted Cabinet
Pole Mounted Cabinet
Wire Screen
8" MAX.
Finished Grade
Ground Rod A
2" MIN.
Primary Ground
8" MAX.
Rod Assembly
Ground Rod B
(See Inset A)
As Required
Ground Rod A
Primary Ground
Finished Grade
18" M in.
2" MIN.
Conduit for Grounding Conductors
Pull Box
10:
39:
01 AM
12" Min.
36" Max.
#2 AWG To Ground Rod C As Required
#2 AWG To Ground Rod C As Required
#2 AWG To Ground Rod D As Required
#2 AWG To Ground Rod D As Required
5
8"
Diameter By 20' Long
Concrete
12" Min.
36" Max.
6/10/2015
REVISIO N
07/01/14
5
8"
Diameter By 20' Long
Copper-Clad Steel Ground Rods
Copper-Clad Steel Ground Rods
Driven Into Undisturbed Earth
Driven Into Undisturbed Earth
40' Typ.
STEEL CCTV POLE
LAST
As Required
Exothermic Weld
40' Typ.
REVISION
Ground Rod B
(See Inset A)
Pull Box
Exothermic Weld
Concrete
Rod Assembly
18" M in.
Conduit for Grounding Conductors
CONCRETE CCTV POLE
DESCRIPTION:
INDEX
2016
DESIGN STANDARDS
GROUNDING AND LIGHTNING PROTECTION
NO.
18102
SHEET
NO.
1of 4
1/2" ETP Alloy 110 Copper
Air Terminal (Class II)
2' Min
AIR TERMINAL PLACEMENT
(Lowering Device Pole)
ƀ" ETP Alloy 110 Copper
Air Terminal (Class II)
ƀ" ETP Alloy 110 Copper
Surface Base Of 8 Square-Inch
Air Terminal (Class II)
Minimum Contact Area
Surface Base Of 8 Square-Inch
Per NFPA 780-4.16.3
Minimum Contact Area
Per NFPA 780-4.16.3
2' Min
2' Min
2' Min
4' Min
#2 AWG Tin-Plated Bare
Solid Copper Ground Wire.
Bond To Air Terminal
#2 AWG Tin-Plated Bare Solid
Copper Ground Wire. Bond To Air Terminals
Guardrail
(if shown in Plans)
Guardrail
10:
39:
02 AM
(if shown in Plans)
AIR TERMINAL PLACEMENT
(Cantilever DMS)
LAST
REVISION
07/01/15
REVISIO N
6/10/2015
AIR TERMINAL PLACEMENT
(Span DMS)
DESCRIPTION:
INDEX
2016
DESIGN STANDARDS
GROUNDING AND LIGHTNING PROTECTION
NO.
18102
SHEET
NO.
2 of 4
"Sphere Of Influence: 120 Degree"
Ground Rod C
"Modified Sphere Of Influence: 90 Degree"
#2 AWG
Ground Rod C
#2 AWG
Primary Ground Rod A
Primary Ground Rod A
Ground Rod B
Ground Rod D
Ground Rod D
Ground Rod B
Foundation: CCTV or DMS Pole
Foundation: CCTV or DMS Pole
GROUND ROD ARRAY PLACEMENT
(Typical)
20' RODS, 40' SPACING
GROUND ROD ARRAY PLACEMENT
(Typical Modified)
20' RODS, 40' SPACING
#2 AWG Tin-Plated
Bare Solid Copper
Wire Continuous To
Air Terminal
#2 AWG Tin-Plated
Bare Solid Copper
Wire To Ground
Rods B, C And D As
Required (Connections
May Be Combined)
#2 AWG Tin-Plated
Bare Solid Copper
Wire To Pole Mounted
Or Ground Mounted
Cabinet
LAST
REVISION
07/01/14
REVISIO N
6/10/2015
10:
39:
02 AM
INSET "A"
DESCRIPTION:
INDEX
2016
DESIGN STANDARDS
GROUNDING AND LIGHTNING PROTECTION
NO.
18102
SHEET
NO.
3 of 4
"Sphere Of Influence: With Ground Ring"
Ground Rod D
#2 AWG (Typical)
Primary Ground Rod A
Foundation: Communication Tower
Communication Tower
#2 AWG 12" Min./36" Max. From Foundation
Ground Rod B
Ground Rod C
Ground Rod F
Ground Rod E
GROUND ROD ARRAY PLACEMENT
(Communication Tower)
20' RODS, 40' SPACING
Tower Leg
Grounding Conductors
Ground Rod A
Ground Rod B
Primary Ground
2" MIN.
Ground Rod D
Rod Assembly
8" MAX.
(See Inset A)
18" M in.
Ground Rod E
Pull Box
Exothermic Weld
Exothermic Weld
#2 AWG
#2 AWG
#2 AWG
#2 AWG
To Ground Rod E
To Ground Rod A
To Ground Rod B
To Ground Rod D
#2 AWG
To Ground Rods C+F
Pull Box
5
8"
#2 AWG
To Ground Rods C+F
12" Min.
12" Min.
36" Max.
36" Max.
5
8"
Diameter By 20' Long
Diameter By 20' Long
Copper-Clad Steel Ground Rods
Structure Or Device
Copper-Clad Steel Ground Rods
Driven Into Undisturbed Earth
Requiring Grounding
Driven Into Undisturbed Earth
10:
39:
02 AM
Grounding
Conductors
40' Typ.
GROUND ROD ARRAY PROFILE
(Communication Tower)
LAST
REVISION
07/01/14
REVISIO N
6/10/2015
COMMUNICATION TOWER
40' Typ.
DESCRIPTION:
INDEX
2016
DESIGN STANDARDS
GROUNDING AND LIGHTNING PROTECTION
NO.
18102
SHEET
NO.
4 of 4