954.1 954.2(c)
954.1DESCRIPTION —This work is the furnishing and installation of the electrical distribution for the control
and illumination of traffic signals.
954.2MATERIAL —
(a)General.
• Traffic Signals -General . Section 950.2
• Poles and Bases . Section 1101.02
• Certification . Section 106.03(b)3
(b)Conduit.
1.Rigid Steel Conduit. Section 1101.09, except may be used for direct burial, and UL -6 Listing for
rigid metallic conduit, galvanized inside and outside.
2.Rigid Polyvinyl Chloride Conduit. Section 1101.09 with UL -651 Listing for rigid nonmetallic
conduit, and UL -514 Listing for fittings.
3.Cable Pulling Lubricant. Section 1101.13(c) .
4.Conduit Sealant. Electrical putty or approved sealant as recommended by the signal cable or
conduit manufacturer.
5.Stainless Steel Wool. Grade 3 or 4 stainless steel wool.
6.Fiber Optic Microduct.
• High-Density Polyethylene (HDPE). HDPE 3 -way factory bundled microduct with a polyethylene oversheath. Each microduct is to be smooth on the outside, micro -ribbed on the inside, and have a co-extruded permanent lubrication layer.
• Microduct oversheath is to be orange. Inner microduct colors are to be green, orange, and blue.
• Microduct sizes are referenced using an outer dimension or inner dimension. The 3 -way microduct must meet or exceed the 27 mm outer dimension or 20 mm inner dimension.
7.Fiber Optic Conduit .
• HDPE SDR11 1 1/4-inch inner dimension. Reels can be separate or combined onto a single reel.
• Colors of the HDPE are to be green, orange, and blue.
(c)Wire and Cable.
1.Signal Cable. 14 AWG minimum, stranded conductors; conforming to IMSA Specification 19 -1 or
20-1.
2.Service Wire. 8 AWG minimum wire, Type USE conforming to UL -854 Listing and ASTM B3 and
B8 for soft, annealed copper.
954.2(c) 954.2(e)
3.Ground Wire. Bare or insulated copper wire, 8 AWG, conforming to ASTM B3.
4.Cable Tags. Provide cable tags that are permanent, UV resistant, and weather resistant. Semi -
permanent tags such as tape will not be allowed unless used for temporary applications such as during construction.
5.Cable Ties. Provide cable ties that are permanent, UV resistant, and weather resistant.
6.High -Density Polyethylene (HDPE) Conduit. NEMA TC7 Standards and Schedule 40.
7.Polyester Pull Tape. Rated 900 pounds.
8.Cable Supports. For span wire installations utilize insulated cable rings and saddles, or other
acceptable type support, to secure cable to span wire.
9.Ethernet Cable. Provide shielded outdoor rated Category 5e/6 100BASE -TX Ethernet cab
Source: Pennsylvania Department of Transportation Specifications, 2026 Edition. Pages 916–920 of 1,522.