739.01 Electrical Conductors
786 SECTION 738
738.01 Traffic Signal Wire and Cable
Provide traffic and signal electrical cable in accordance with IMSA 19-1 or 20 -1, size 14 AWG. Provide shielded loop detector lead -in cable in accordance with IMSA 50-2, size 14 AWG. Provide loop detector wire in accor dance with IMSA 51-5, size 14 AWG.
738.02 Building and Highway Lighting Wire and C Able
Provide AWG sized NEC wire, Type XHHW -2 or Type THHN building wire and cable with copper conductors, rated for 600 V. Provide AWG sized NEC wire, Type XXHW -2 or Type TTHN underground wire and cable with copper conductors. Provide AWG sized NEC wire, Type XHHW -2 or Type THHN aerial wire and cable with a conductor material that is best suited for the service intended.
738.03 Communication Wire A Nd Cable
Provide underground communication wire and cables in accordance with IMSA 20-2 or REA -22. Provide overhead communication wire and cable in accordance with IMSA 20-4. SECTION 739 PULL BOXES
739.01 Precast Concrete Pul L Boxes
A.Concrete Prov ide concrete mixture designed to have a compressive strength of 3,000 psi [20.7 MPa] in accordance with AASHTO T 22.
B.Reinforcement Provide wire reinforcement in accordance with AASHTO M 32 or AASHTO M 225.
C.Cover Provide a gray iron casting cover in a ccordance with Subsection 725.03, “Iron Castings.” Ensure the cover has a non -slip surface and two, ⅜ in [9.5 mm] pent head brass bolts and nuts.
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 800–799 of 935.