Home / DOT Specifications / Delaware / Standard Specifications for Road & Bridge Construction / 84100

Electrical (16000-16999)

841001 PROVIDE AND INSTALL WEATHERHEAD, UP TO 3”, ON STEEL POLE EACH

DE · 2025 Standard SpecificationsBook pages 529–532View official source ↗

SERVICE PEDESTAL AND SAFETY SWITCH SECTION 842

519 SECTION 842 — SERVICE PEDESTAL AND SAFETY SWITCH

842.1Description.

This work consists of providing and installing or removing lighting and traffic service pedestals and safety switches.

842.2Materials.

A.Conduit Fittings, Galvanized Steel Section 831; Section 1062

B.Cables and Wires Section 832

C.Ground Rod and Wire Section 833

D.PCC, Class B Section 1022

E.Hex Bolts and Washers, Stainless Steel Section 1039

F.Square Tube Steel Posts, Galvanized Section 1039

G.Service Pedestal and Safety Switch Section 1078

H.Pedestal Board Section 1078

842.3Construction.

A.General.

1.Perform work in compliance with NEC, NFPA, and 2017 National Electric Safety Code (NESC)

standards, and with utility company minimum requirements.

2.Install the electric service pedestal as shown in the Standard Construction Details .

3.Locate the line side safety switch and meter adjacent to the service drop location:

Fuse and size the line side safety switch to service.

4.Do not fuse the load side safety switch:

a.Mark the safety switch with a weatherproof stamp. Label switches as follows to denote the

devices the switches serve:

i.Lighting.

ii. Signal. iii. Camera. iv. Repeater.

v.VMS.

vi. Detector. vii. RWIS denoting the device it serves.

B.Service Pedestal.

1.In addition to this section, install in accordance with Section 705.

2.When placing a pole base in an existing concrete sidewalk, saw cut the concrete in a square

pattern or remove the concrete to the nearest joint. SERVICE PEDESTAL AND SAFETY SWITCH SECTION 842

520 3. Place Conduit.

a.Use a conduit adapter to connect sweeps to underground conduit and conduit leading to the

safety switch and meter.

b.Install 2-inch galvanized conduit, threaded and reamed on both ends, on the end of the 90-

degree sweeps at the base of the pedestal board. Ensure that the conduit extends 3 -feet above the surrounding grade.

4.Install square tube steel posts in accordance with Standard Construction Details in concrete

footings with 25 -pounds of concrete at each leg, just below grade and as directed by the engineer .

a.Provide 3 -inch clearance on the base of footing to conduits.

b.Determine the finished length of the tubular steel posts by adding 5 -feet to the combined

height of the meter and the safety switch.

5.Backfill around the conduit and concrete footings, and dispose of excess or unsuitable materials:

a.Backfill 24 hours after concrete placement and in accordance with Section 202.

b.Remove all excess material.

6.Install ground rods in accordance with the contract and Section 833.

7.Attach the pedestal board to the steel posts using stainless steel hex bolts and washers.

8.Arrange for an inspection by a Delaware -licensed electrical inspection agency. Inspections

include all lighting system work including service, branch circuits, junction wells, underground conduit, and all grounding and bonding: Provide certification documentation for the Delaware -licensed electrical inspection agency to the engineer for approval before starting work.

9.Remove electric service from wood or metal pole, if required by the contract and as directed by

the engineer.

10.Install 24 -inch x 15-inch x 8 1/2-inch minimum weatherproof lighting control cabinet, if required

by the contract and as directed by the by the engineer.

11.Install 24-inch x 15-inch x 8 1/2-inch minimum weatherproof traffic control cabinet, if required

by the contract and as directed by the by the engineer.

842.4Method of Measurement.

The Department will measure the quantity of electric services as the actual number installed and accepted.

842.5Basis of Payment.

The Department will pay for the quantity of electric services at the contract unit price for each installed and accepted. Price and payment constitute full compensation for all materials, installation, and inspection by a Delaware licensed electrical agency. ITEM DESCRIPTION UNIT 842001 ELECTRIC SERVICE ON WOOD POLE EA 842002 ELECTRIC SERVICE ON METAL POLE EA SERVICE PEDESTAL AND SAFETY SWITCH SECTION 842

521 ITEM DESCRIPTION UNIT 842003 ELECTRIC SERVICE ON PEDESTAL EA 842004 ELECTRIC SERVICE ON PEDESTAL WITH SERVICE RISER EA 842005 REMOVAL OF ELECTRIC SERVICE ON WOOD OR METAL POLE EA 842006 PROVIDE AND INSTALL EMBEDDED METERED SERVICE PEDESTAL (100 AMP) EA 842007 PROVIDE AND INSTALL ELECTRICAL UTILITY SERVICE EQUIPMENT 120/240 EA

HIGHWAY LIGHTING ELECTRICAL TESTING SECTION 843

522 SECTION 843 — HIGHWAY LIGHTING ELECTRICAL TESTING

843.1Description.

This work consists of electrical testing for highway lighting systems .

843.2Materials.

Not applicable.

843.3Construction.

A.When this item is required to test a highway lighting system constructed as part of the contract,

include a 1 -year warranty of the highway lighting system installed under the contract. The highway lighting system includes all items of work performed under the contract to provide lighting of roadways, bike paths, parking lots, or other areas.

B.The highway lighting system is comprised of all contract items for lighting, including conduits,

junction wells, cables, load centers, transformers, cabinet pads, pole bases, poles, high mast poles, light standards with and without davit arms, luminaires, service installations, and reworked or relocated existing lighting facilities.

C.Perform work in accordance with the latest editions of the NEC, the NESC, local utility company

requirements, state and local laws, and ordinances governing the work.

D.Perform work under the direct supervision of a master electrician licensed in the State of Delaware.

Submit a copy of the master electrician’s license to the engineer for approval.

E.Apply for, obtain, and pay for all permits, licenses, and inspections required by this bid item and

local regulations.

F.Engage a third -party Delaware -approved licensed electrical inspection agency to inspect all

electrical installations.

G.Submit the types, styles, or catalog numbers of testing equipment at least 30 calendar days before

beginning each test. Include a written certification stating when the testing equipment was last calibrated. Ensure the calibration date is within 180 calendar days of the date of testing. Perform all tests in the presence of the engineer. 843.3.1 Ground Resistance Testing.

A.Measure ground resistance with a 3 -terminal, fall -of-potential, direct -reading, battery -powered

earth tester with a 0.50 to 500-ohm scale or digital read -out. Ensure the resistance is 25-ohms or less.

B.Perform the test in accordance with the manufacturer's instructions and OSHA requirements.

Perform the test when the soil is dry. Do not add any chemical or salt solutions to any portion of the grounding system.

C.Install grounding rods and foundation grounds a minimum of 10 calendar days before testing,

unless otherwise determined by the engineer. Drive 2 auxiliary copper clad ground rods into the ground a minimum of 3 -feet apart.

D.Provide the lateral spacing for each test rod in writing on a test report form. The engineer will

approve the spacing. Isolate each ground rod or foundation ground with the bond wires disconnected when performing the test. Ensure the resistance to groun d is 25 -ohms or less. Perform 2 ground resistance tests unless noted otherwise in the contract.

Source: Delaware Standard Specifications for Road and Bridge Construction, 2025 Edition. Pages 529–532 of 779.

← Previous

84000 1 PROVIDE AND INSTALL DOWN GUY AND ANCHOR EACH

84200 1 ELECTRIC SERVICE ON WOOD POLE EA