Art. 1086.01 Electric Service Installation specified by the manufacturer and shall be galvanized or stainless steel according to Article 1006.29. ELECTRICAL SECTION 1086. ELECTRIC SERVICE INSTALLATION
1086.01 Electric Service Installation - Lighting.
a.Overhead Electric Service.
1.Service Pole and Appurtenances. The wood service pole shall include a guy and anchor and, if necessary, a meter socket.
2.Weatherhead. The weatherhead shall be designed to fit the service conduit size and galvanized according to AASHTO M 232. It shall be furnished with a composition cover with holes for the service cables.
3.Service Disconnect Switch. A heavy duty service disconnect switch shall be provided on the service pole. It shall be enclosed in a NEMA Type 4X watertight housing. The switch shall have an external lockable handle and shall provide for locking in either the “On” or “Off” position. Fuses and padlocks shall be included. Padlocks shall be keyed to match the District standard.
b.Underground Electric Service. When the underground electric service is ground mounted, it shall include a fiberglass above ground pedestal. When the underground electric service is pole mounted, the service disconnect switch shall be according to Article 1086.01(a)(3).
1086.02 Electric Service Installation - Traffic Signal.
a.Weatherhead. The weatherhead shall be designed to fit 1 in. (25 mm) threaded conduit, and galvanized according to AASHTO M 232. It shall be furnished with a composition cover with holes for service.
b.Circuit Breaker and Weatherproof Enclosure. The circuit breaker shall be single pole, rated 50 A, and mounted on an aluminum plate. The circuit breaker shall be contained in the stainless steel, weatherproof NEMA 4X enclosure of adequate size. The top and bottom of the enclosure shall be furnished with hubs for installing conduits. The enclosure shall be furnished with two padlocks, one for the handle and for the door when used in a Type A service installation. Each padlock shall be furnished with two No. 399 keyed alike keys.
c.Grounding. The grounding shall be according to Section 806. Wireway and Conduit System Art. 1088.01 SECTION 1087. GROUNDING
1087.01 Grounding Materials.
a.Grounding Electrode Conductors. Grounding electrode conductors shall be solid, soft drawn 1/C No. 6 copper and shall be installed according to NEC requirements.
b.Grounding Electrodes. Grounding electrodes shall be copper-clad steel with a minimum copper thickness of 10 mils (0.3 mm) and shall be according to UL 467. Grounding electrodes shall be one piece, sectional (threaded) steel rods not less than 5/8 in. (16 mm) in diameter and 10 ft (3 m) long.
c.Access Wells. Grounding electrode access wells shall be constructed of PVC or composite polyester resin/fiberglass material with a diameter of 8 to 12 in. (200 to 300 mm), a length of 36 in. (900 mm) and a cast iron or composite polyester resin/fiberglass lid, secured via stainless steel hardware. A concrete handhole may be used for the access well according to Article 1088.05. SECTION 1088. WIREWAY AND CONDUIT SYSTEM
1088.01 Electrical Raceway Materials. Electrical raceway materials shall be
as follows.
a.Rigid Metal Conduit. The conduit, after fabrication, shall be thoroughly cleaned and the inside and outside surfaces shall be galvanized. Couplings and conduit bodies shall meet ANSI C80.1 and shall be hot-dip galvanized. Elbows and nipples shall be according to the specifications for conduit. All conduit bodies and couplings for rigid conduit shall be of the threaded type.
1.Rigid Steel Conduit. Rigid steel conduit shall be galvanized and manufactured according to UL 6 and ANSI C80.1.
2.Intermediate Metal Conduit. Intermediate metal conduit shall be manufactured according to UL 1242 and ANSI C80.6. After fabrication, the conduit shall be thoroughly cleaned and the inside and outside surfaces galvanized. Couplings and conduit bodies shall meet ANSI C80.6 and shall be hot- dip galvanized. All conduit bodies and couplings for conduit shall be the threaded type.
3.Coated Galvanized Steel Conduit. The conduit prior to coating shall meet the requirements for rigid metal conduit and be manufactured according to NEMA RN 1.
Referenced in this section
Sections that cite this one
Get an email when 1086 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 1083–1084 of 1,217. View official source ↗