Wire and Cable Art. 1066.02 voltage. They shall be sized at 300 percent of the starting or operating current whichever is greater, but in no case greater than 50 percent of the branch circuit conductor ampacity.
1062.02 Lightning Protection. The surge arrester shall be totally
weatherproof, and shall withstand a surge current up to 20,000 amperes (8 X 20 micro seconds) and repetitive surges of 200 amperes for a minimum of 10,000 occurrences. Response time shall be less than 50 nanoseconds. The current drain shall not exceed 100 microamperes. The unit shall not allow holdover current or conduction to ground after the surge ends. Protection shall be achieved for both phase and neutral conductors with surges being passed to ground and not to neutral. There shall be no discharge lag in the protection of phase conductors over the neutral conductor. SECTION 1066. WIRE AND CABLE
1066.01 Unit Duct. The unit duct shall be an assembly of insulated conductors
which are factory pre-installed in a coilable nonmetallic conduit. The polyethylene duct shall be extruded directly over the cable at the factory in long continuous lengths. The unit duct shall be according to UL 651A and UL 1990 for Schedule 40 conduit.
1066.02 Conductors. All cable shall be rated 600 V. The cable shall be rated
90 ºC wet and dry and shall be resistant to oils and chemicals. Any cable used for a service entrance shall have a Type USE-2 rating. The UL listing mark, cable voltage, insulation type and ratings, as well as the cable size shall all be clearly printed on the cable in a color contrasting with the insulation color. When specified, each cable installed shall be identified with its complete circuit number at each termination, splice, junction box or other location where the wire is accessible. Electric cables smaller than No. 2 AWG shall be solid color coded. Neutral wires shall be color coded white. Single phase three wire runs of cable shall be color coded one black, one red, and one white; three phase three wire runs of cable shall be color coded one black, one red, and one blue. Single phase two wire runs shall be similarly color coded based on the applicable phase(s) and neutral. The insulated ground wires and the equipment grounding conductor shall be color coded green. Tape on the conductor or color striping of cables will not be acceptable in lieu of the specified color coding means. Cables sized larger than No. 2 AWG shall be color coded as specified having not less than 12 in. (300 mm) of cable ends field-taped with half-lapped color tape or by other means approved by the Engineer.
a.Copper Conductors. Conductors shall be uncoated or coated copper. Uncoated conductors shall be according to ASTM B 3, ICEA S-95-658, NEMA WC 70, and UL 44. Coated conductors shall be according to ASTM B 33, ASTM B 8, ICEA S-95-658, NEMA WC 70, and UL 44. Art. 1066.02 Wire and Cable All conductors shall be stranded. Stranding shall meet ASTM B 8 (or ASTM B 496 for conductors larger than No. 2 AWG), ICEA S-95-658, NEMA WC 70, and UL 44.
b.Aluminum Conductors. Conductors shall be aluminum according to ASTM B 230 and shall be Class B stranded according to ASTM B 231, and shall be according to the values listed in the table in Article 1066.03.
1066.03 Cable Insulation. Insulated cable designated as XLP shall
incorporate cross-linked polyethylene (XLP) insulation and shall meet or exceed the requirements of ICEA S-95-658, NEMA WC 70, and UL 44. Minimum insulation thickness at any point shall not be less than 90 percent of the average insulation's thickness listed in the following tables.
a.Non-Aerial Cable Insulation. Cables sized No. 2 AWG and smaller shall be solid color coded with XLP insulation of minimum average thickness as indicated in the following table. Insulation Thickness for Cables No. 2 AWG and Smaller Conductor Size, AWG Average Insulation Thickness No. 10 and Smaller 45 mils (1.1 mm) No. 8 through No. 2 60 mils (1.5 mm) Cables larger than No. 2 shall be insulated by XLP insulation over the conductor with minimum average thicknesses not less than indicated in the following table. Insulation Thickness for Cables Larger than No. 2 AWG Conductor Size, AWG Average Insulation Thickness No. 1 through No. 4/0 80 mils (2 mm) 250 MCM through 500 MCM 95 mils (2.4 mm)
b.Aerial Cable Insulation. The conductors shall have the minimum average insulation thickness indicated in the following table. Aerial Electric Cable Properties Phase Conductor Messenger Wire Size AWG Stranding Average Insulation Thickness Minimum Size AWG Stranding mils mm 6 7 45 (1.1) 6 6/1 4 7 45 (1.1) 4 6/1 2 7 45 (1.1) 2 6/1 1/0 19 60 (1.5) 1/0 6/1 2/0 19 60 (1.5) 2/0 6/1 3/0 19 60 (1.5) 3/0 6/1 4/0 19 60 (1.5) 4/0 6/1 Wire and Cable Art. 1066.06
1066.04 Aerial Cable Assembly. The aerial cable shall be an assembly of
insulated aluminum conductors according to Articles 1066.02 and 1066.03 and a steel messenger wire according to ANSI/ICEA S-76-474. The cable assembly may have the messenger wire intertwined with the insulated cables or lashed to the insulated cables by a factory wrap. The cable shall be assembled according to ANSI/ICEA S-76-474.
1066.05 Underground Cable Marking Tape. The tape shall be 6 in. (150 mm)
wide; consisting of 7 mil (0.18 mm) minimum polyethylene according to ASTM D 882, ASTM D 5034, ASTM D 5035 and ASTM D 2103. The tape shall be red with black lettering or red with silver lettering reading “CAUTION – ELECTRICAL LINE BURIED BELOW”. When specified, the tape shall be a woven reinforced polyethylene tape with a metallic core or backing that is detectable.
1066.06 Splicing and Termination of Electric Cable.
a.General. Splices in electrical cables shall be made with materials which are compatible with conductors, insulations, and any jackets of the associated cables. The connectors shall be listed for the quantity and size of conductors to be spliced.
b.Heat-Shrink Cap for Splice. When specified, splices above grade, such as in poles and junction boxes, shall have a waterproof sealant and a heat shrinkable plastic cap. The cap shall be of a size suitable for the splice and shall have a factory applied sealant within. Additional seal of the splice shall be ensured by the application of sealant tape or the use of a sealant insert prior to the installation of the cap. Either method shall be compatible with the cap sealant. Tape sealant shall be applied in not less than one, half- lapped layer for a length at least 1/4 in. (6.35 mm) longer than the cap length and the tape shall also be wrapped into the crotch of the splice. Insert sealant shall be placed between the wires of the splice and shall be positioned to line up flush or extend slightly past the open base of the cap. The end caps shall have a post shrink wall thickness not less than the following. Initial Inside Diameter Post-Shrink Wall Thickness in. (mm) in. (mm) 0.50 13 0.070 1.78 0.75 19 0.080 2.03 1.00 25 0.095 2.41 1.15 29 0.095 2.41 1.50 38 0.100 2.54 2.00 50 0.105 2.67
c.Taped Splice. Remove 6 in. (150 mm) of insulation for compression splices or 3 in. (75 mm) of insulation for pressure connectors from the end of the Art. 1066.06 Wire and Cable cable and thoroughly clean the conductor for splicing. Apply the connector according to manufacturer’s recommendations. Apply three layers of half- lapped rubber tape or one layer of 1/8 in. (3 mm) thick electrical insulation putty. The tape or putty shall completely enclose the bare splice and a minimum of 2 in. (50 mm) of insulation on each cable. Work the tape or putty with finger pressure to fill irregularities and form a smooth mold. Next apply two half-lapped layers of plastic electrical tape covering all rubber or putty filled areas and extending a minimum of 1 in. (25 mm) over the insulation of each cable. Brush on and completely cover the splice with a clear sealant and bonding compound that is specifically formulated for plastic electrical tape. Orient the finished splice so that the cables enter the splice from below.
1.Twist-On Wire Connectors. When specified, waterproof pressure type connectors may be used for #6 or smaller copper conductors in conductor combinations recommended by the manufacturer. Factory applied contact paste and sealant shall be supplied inside the connectors. Pressure connectors shall be covered with a tape sealant as noted above or with an Engineer approved sealant system after they are installed.
2.Crimp Connectors. Individual conductors, including ground conductors, shall be terminated with compression terminals sized appropriately for the given connection. The connectors shall be copper and comply with UL 486A. The terminals shall be clearly marked with the wire size and die index. All compression terminals shall be installed with the proper tool and die for crimping. Grounding conductors shall be connected to poles, sign structures, and the like using materials specifically listed for the applicable grounding. Connections at metal boxes or enclosures shall be made by means of a suitable grounding screw used for no other purpose or by a listed grounding device. Splices for multiple conductors shall be copper compression joint sleeves. Copper compression joints (sleeves) shall be made of tin plated copper and be listed for 600 volt applications and shall be of the type suitable for a range of conductor combinations. Compression connectors shall be covered with a tape sealant as noted above or with an Engineer approved sealant system after they are installed.
1066.07 Wiring Identification Markers. Wiring identification markers shall be
as follows.
a.Cloth Tape Wire Markers. Wire identification shall be made by the application of self-sticking wire markers, wrapped around the wire. The markers shall have black characters not less than 5/16 in. (8 mm) high on a white or yellow background. Markers shall be in strips not less than 1 1/2 in. (38 mm) long and shall be made of a high-tack cloth tape with printing protected by a clear, permanent overcoating.
b.Clip-On Wire Markers. Clip-on wire markers shall be white with black lettering. The proper size of wire markers shall be used to prevent slipping of the markers on the cable. Luminaire Art. 1067.01
1066.08 Electrical Tape. Electrical tape shall be all weather vinyl plastic tape
resistant to abrasion, puncture, flame, oil, acids, alkalies, and weathering, according to UL 510 and ASTM D 1000. Thickness shall not be less than 8.5 mils (0.215 mm) and width shall not be less than 3/4 in. (19 mm).
1066.09 Wire in the Pole. Pole wire shall run from handhole to luminaire.
Pole wire shall be sized No. 10, rated 600 V, RHW/USE-2, and have copper conductors, stranded in conformance with ASTM B 8. Pole wire shall be insulated with cross-linked polyethylene (XLP) insulation. Color coding of the pole wire shall be via solid insulation color. Neutral wires shall be white and phase conductors shall be color coded red or black as appropriate to match the associated branch circuit conductors. Cable identification marking shall be visible in a contrasting color. SECTION 1067. LUMINAIRE
1067.01 General. The luminaire shall be optically sealed, mechanically strong
and easy to maintain. The luminaire shall be designed as to its size, shape and weight so it does not aggravate the vibration characteristics of its respective pole and it shall be compatible with the pole and arm.
a.Lamp Socket. The lamp socket shall be mogul type, glazed porcelain, one piece rolled threads with stationary socket lead connectors that will not move during lamp insertion and removal. The rating of the socket shall exceed the lamp starting voltage, or starting pulse voltage rating.
b.ANSI Identification Decal. A decal, complying to ANSI C 136.15, shall be factory attached permanently to the luminaire. The information contained in the decal shall enable a viewer, from the ground level, to identify the lamp wattage and type of luminaire distribution.
c.Optical Assembly. The reflector shall be made of 0.02 in. (0.5 mm) minimum thickness specular aluminum sheet. The surface shall have a dense protective coating of oxide not less than 7.5 mg/sq in. (0.012 mg/sq mm), applied by an anodic oxidation process. A glass reflector finish may be substituted in place of an oxide coating. The glass finish shall be chemically bonded to the reflector and shall be flexible, impact resistant, and heat resistant. Segmented reflectors, if used, shall have extensive bracing and support of the reflective segment members to minimize the potential for accidental bending of the segments during installation or maintenance. The reflector, the refractor or lens, and the entire optical assembly shall not develop any discoloration over the normal life span of the luminaire. Luminaire efficiency, defined by the IES as "the ratio or luminous flux (lumens) emitted by a luminaire to that emitted by the lamp or lamps used within", shall not be less than 67 percent. Submittal information shall include published efficiency data.
Sections that cite this one
Get an email when 1066 changes
Illinois revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.
Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 968–972 of 1,217. View official source ↗