Effective with the December 2018 Letting 474 2019 Standard Spec ifications Section 654 Bases
654.1Description
cabinets.
654.2Materials
Provide QMP for class III ancilla ry concrete as specified in 716.
ASTM A563 nuts, and ASTM F436 washers for type 1 and 2 traffi c signal bases; for type 5, 6, 7, and 8 street light bases; for type 10 control cabinet bases; and for type 11 walkway lighting unit bases. Hot- dip zinc coat according to ASTM A153, class C, supplemented by ASTM F2329 . Revise 654.2(4) to include top and bottom templates for anchor rod assemblies used with type 10 and 13 bases.
templates. Include rods, nuts, and washers conforming to 641.2.2.3 .
stainless steel bolts or st uds, nuts, and washers.
654.3Construction
footings as specified in 502.3.8.1 . Wait until the concrete has atta ined 3500 psi compressive str ength or 7 equivalent days as specified in 502.3.10 before erecting any porti on of the structure on the footing.
cure exposed portions of conc rete bases as specified in 502.3.8.1 . Wait until the concrete has attained the anchor manufacturer recommended compressive strength or 7 c alendar days before installing masonry anchors. 654.4 Measurement
654.5Payment
items: ITEM NUMBER DESCRIPTION UNIT
654.0100 - 0199 Concrete Bases (type) EACH
654.0200 - 0299 Concrete Control Cabinet Bases (type) EACH
conduit and electrical components ; for anchor templates, rods, nuts, and washers; for bar steel reinforcement; and for excavating, backfilling, and disposing o f surplus materials.
Effective with the December 2018 Letting 475 2019 Standard Spec ifications Section 655 Electrical Wiring
655.1Description
and other underground installations.
655.2Materials
655.2.1 Cable In Duct
direct earth burial, and manufac tured from high density polyeth ylene conforming to the applicable requirements of ASTM D3350 .
underground conduit with conductors, type NUCC. 655.2.2 Traffic Signal Cable
Provide wire size and number o f conductors as the plans show.
20-1 cable, 14 AWG 4, 5, or 7 conductor as required. 655.2.3 Type UF Cable
Use cable conforming to ANSI/UL 493. 655.2.4 Communication Cable
cable. Twist conductors 12 turns per foot by the individual pai r. 655.2.5 Grounded Conductor and E quipment Grounding Conductor f or Traffic Signals
for conductors. 655.2.6 Electrical Wire for Lighting
conductor, stranded copper, XLP i nsulated, USE rated wire sized as the plans show.
insulated, USE rated wire. Use 12 AWG unless plans show otherwise.
coating conforming to Method I, o r by surface printing conformi ng to Method III of IPCEA (Insulated Power Cable Engineers Association)-NEMA StandardS-19-81. Do no t use white coatings on ungrounded conductors.
approved electrical tape at all ac cess points. At each hand-hol e, identify the line side of each circuit with a tape colored as the plans specify. 655.2.7 Loop Detector Lead In Cable
to IMSA Specification Number 50- 2 for loop detector lead-in cable. 655.2.8 Loop Detector Wire
more strands for loop detector wire. 655.2.9 Emergency Vehicle Preemption Detector Cable for Traffi c Signals
WC5 with a foil shield, 20 AWG st randed conductors and ground w ire, and rated for 75 degrees C. Ensure that the conductors are co lor coded with 1 blue, 1 orang e, and 1 yellow conductor.