A06_Layout_Drawings_revised.pdf

Sawtooth

U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENTUNITED STATES DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

FACILITY IMAGE VICINITY MAP

Directions to Sawtooth Mountain

From Southern Nevada District Office – 4701 N Torrey Pines Dr, Las

Vegas, NV 89130

1. Head east toward N Torrey Pines Dr go 207 ft

2. Turn left onto N Torrey Pines Dr go 449 ft

3. Turn left at the 1st cross street onto W Lone Mountain Rd go 0.3 mi

4. Turn right onto N Rancho Dr go 0.5 mi

5. Take the ramp on the left onto US-95 N go 0.7 mi

6. Merge onto US-95 N go 105 mi

7. Turn left onto NV-374 S/Main St go 4.0 mi

8. Turn right onto Rhyolite Rd go 0.8 mi

9. Turn left on Goldbar Road go 0.3 mi

10. Slight right on access road go approx 2 mi

11. Slight Right on dirt road to the top of the mountain go 1.5 mi

12. At the end of the dirt road the site will be straight ahead on the ridge.

Degrees Minutes Seconds Decimal

Latitude: 36° 56' 9.0234" N Latitude: 36.93584 N

Longitude: 116° 51' 2.484" W Longitude: 116.85069 W

Elevation: 5,807 ft. AMSL

External Grounding Layout

Title Sheet

Facility Layout

Soil Resistivity Test Layout

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TITLESHEET NO. DWG. NO.

SHEET INDEX

10/16/2020

10/16/2020

10/16/2020

10/16/2020

Revision Date

AREA REFERENCE MAP

SYMBOL

INTERSTATE HIGHWAY

U.S. HIGHWAY

STATE HIGHWAY

DESCRIPTIONSYMBOL

STATE CAPITOL

FACILITY LOCATION

BLM FIELD OFFICE

DESCRIPTION

Soil Resistivity Testing Report4 10/16/2020

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Cabinet Layout3 A2 10/16/2020

Sawtooth kmwong Stamp

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Facility Layout

Sawtooth

1" = 40'

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N

New Location for Pepro Cabinet

36° 56' 9.0234" N, 116° 51' 2.484" W

Existing BLM Rohn Shelter to be Removed

Existing BLM Self-Supporting Tower

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Cabinet Layout

Sawtooth

39.0°

= to Lat

To TGBTo TGB

Tower Ground Bus Bar (TGB)

Rack Ground Bus Bar (RGB)

Pass-Through Bus Bar at

Electrical Entrance

RF Cable Entrance

20-Foot Articulating Mast

Electrical Entrance Box

Concrete Pedestal with UFER (x4)

E q u ip m e n t E q u ip m e n t

SOLAR PANEL INSTALLATION

SOLAR PANEL GROUNDING

EQUIPMENT INSTALLATION

AND GROUNDING (TYPICAL)

Repeater

Duplexer

Batteries

Rack Ground Bus Bar (RGB)

#6 AWG, Stranded Green-Jacketed Grounding Conductors Using Single-Hole UL 467 Listed Connectors

Duplexer

18 Repeater

18 Battery Shelf

RGB Grounded to Pass-Through Bar with #2 AWG, Green-Jacketed Grounding Conductor Using Two-Hole UL 467 Listed Connectors

Tower Ground Bus Bar (TGB)

RF Cable Entrance

Exhaust

Air Intake

Ballast Plates

UFER Ground Pads

1- Bay Micro Cabinet

20-Foot Articulating Mast

Exhaust

Air Intake

Electrical Entrance Box

UL 1449 Surge Protection (x2)

100 Amp Filters (x4)

Wiring Entry

Pass-Through Bus Bar

4 6

Soil Resistivity Testing Report

Sawtooth

5 10 15 20 Testing Notes

Meter Readings Ω Ω Ω Ω

1 of 2 20 16.2 6.5

2 of 2 21 19.9 5.7

Soil Resistivity Calculations

5 10 15 20 p = (Ω-cm) p = (Ω-cm) p = (Ω-cm) p = (Ω-cm)

1 of 2 19,150 31,023 0 24,895

2 of 2 20,108 38,109 0 21,831

Enter Highest Amount (Worst Case) 38,109

Grounding Enhancement Material (GEM) 85%

Calculation with GEM 32,393

Test Completed By

Date

Client/Project

Site Location Name /ID

Ground Resistance Tester

Model:

Serial Number:

Calibration Date:

Soil Description

Ambient Conditions

Top Soil Temperature:

Present Conditions (dry, rain, snow):

Date of last precipitation:

Min Average Max

590 2370 7000

340 4060 16,300

1020 15,800 135,000

59,000 94,000 458,000

NOTES

GEM Can lower the soil resistivity between 15 and

30 % depending on how much is used

TEST DATA

Test Location Spacing (Test Depth) Feet p= 191.5 x A x R p= soil reisistivity in Ω-cm

A = Distance betw een test rods (in feet)

R = Resistance obtained from tester

Test Location

Conversion to (Ω-cm) - AUTO CALCULATION

Same, with varying proportions of sand and gravel

Gravel, sand, stones with little clay or loam

Dry

Two Weeks

Typical Soil Descriptions

Ashes, cinders, brine, waste

Clay, shale, gumbo, loam

GRT300

1989519

Typical Resistivity (approx.), Ω-cm

Testing completed at multiple depths in three separate directions across the existing radio facility. 10-foot Depth shall be used for grounding system design based on 30-inch deep trench with ground rod driven vertically with 6 inches extending above trench bottom.

The highest soil resistance tested at 10-foot measuring 32,393

(Ω-cm), shall be used as a basis for adding additional ground rods to obtain a 25 Ohm or less final resistance to ground of the grounding system.

Single ground resistance is calculated at 104 Ohms. The use of six 10-foot long, 3/4-inch diameter ground rods is required to achieve 24.5 Ohms 90 Deg. Fahrenheit

72 Deg. Fahrenheit

Robert GaNun

07/22/20

Bureau of Land Management

Sawtooth Peak

Rock Cliff with large rock, Gravel, sand, stones with little clay or

4/27/2020

Extech

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1/8” = 1'

0 ft. 6 ft. 10 ft. 20 ft.0 ft. 6 ft. 10 ft. 20 ft.

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Soil Resistivity Test Layout

Sawtooth

5 10 15 20

Ω Ω Ω Ω

20 16.2 6.5

21 19.9 5.7

5 10 15 20 p = (Ω-cm) p = (Ω-cm) p = (Ω-cm) p = (Ω-cm)

19,150 31,023 0 24,895

20,108 38,109 0 21,831

38,109

85%

32,393

GEM Can lower the soil resistivity between 15 and

30 % depending on how much is used

Spacing (Test Depth) Feet p= 191.5 x A x R p= soil reisistivity in Ω-cm

A = Distance between test rods (in feet)

R = Resistance obtained from tester

Conversion to (Ω-cm) - AUTO CALCULATION

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1 1

Ground Ring – Four (4) 10 ft. long x 3/4 in. ground rods space 10 ft. apart & two radials with two (2) 10 ft. long X ¾ in. ground rods in each radial spaced 20 ft apart.

COMPLEX GROUNDING SYSTEM CALCULATIONS

Soil Resistivity = 32,393 Ω-cm Rtotal = 16 Ω

Recommend backfill with grounding enhancement material and low resistance soil.

Typical Ground Rod ¾ in. Diameter 10 ft. Long

5 #2 AWG, Bare, Solid, Tinned Copper Grounding Conductor

Shelter Ground Ring #2 AWG, Bare, Solid, Tinned Copper Grounding Conductor

1B Concrete Encased Electrode Bonded to Ground Ring

20 Solar Panel Grounding

3 Tower Ground Bus Bar

External Grounding Layout

Sawtooth

1B

1B1B

1B

1 1

R1 R2

QTY

Ground

Rods

R 1/R 1/R1+R2 Rtotal (Ω)

Shelter Ground Ring

(10 foot Spacing) (R1) 4 33.92 0.0295

(2) Radials (20 ft spacing) 4 30.38 0.0329

Complex Grounding Electrode System Resistance

Rtotal (Ω) =

0.0624 16.03

The combined (parallel) resistance of all of the subsystems is now calculated by entering the resistance of each subsystem:

Ground Shelter Ground Tab to Ground Ring

Ground Shelter Ground Tab to Ground Ring

Radial Ground Radial Ground

3/4 in.

30 in. Deep Trench

10 ft

Grade

6 in

12 Feet

Ground Rod Installation

3/4 in.

30 in. Deep Trench

10 ft

Grade

6 in

12 Feet

Ground Rod Installation

Grounding System Components