Specifications include, but are not limited to: A. Contractor Responsibility: The installing contractor shall be responsible for providing the equipment and installation of a complete and operational Sports Lighting system (Sports Lighting to be supplied by the City of Kearney) commencing from the secondary side of the service transformer and terminating at the safety disconnect within the electrical enclosure, 10’ above grade, on each lighting pole. The electrical contractor shall coordinate the transformer and switchgear locations, as well as identifying the voltage and phase of the service, with the local power company and the Owner’s representative before any equipment is installed. B. Electric Power Requirements for the Sports Lighting Equipment: Electric power: Per the plans. C. Maximum total voltage drop: Voltage drop to the disconnect switch located on the poles shall not exceed three (3) percent of the rated voltage. D. System Design 1. The electrical system equipment shall consist of: a. Conductors and conduit from the main service transformer to the service entrance panel board. b. The service entrance panel board with appropriate individual circuit overcurrent protection. The panel board shall meet local and National Electrical Code (NEC) requirements for the size of the service, AIC rating, and the type of the environment to which it will be exposed. All feeder breakers shall be bolt on type. c. Conductors and conduit for the feeder circuit from the service entrance panel board (or from the contactor panel if applicable) to the safety disconnect mounted in the electrical enclosure on each lighting pole 10’ above grade. d. Grounding conductors and grounding methods for the following: (1) The main service entrance panel board. (per NEC or local codes) (2) The lighting contactor enclosure. (per NEC or local codes) (3) Each electrical component enclosure mounted on the lighting poles. (Equipment Grounding System) (per NEC or local codes) (4) Lightning Protection for individual poles as follows (per NFPA 780): i. For All New Poles. (a) Manufacturer shall provide integrated lightning grounding via concrete encased electrode grounding system as defined by NFPA 780 and be UL Listed per UL 96 and UL 96A. (b) If grounding is not integrated into the structure, the manufacturer shall supply grounding electrodes, copper down conductors and exothermic weld kits. Electrodes and conductors shall be sized as required by NFPA 780. The grounding electrode shall be not less than 5/8 inch diameter and 8 feet long, with a minimum of 10 feet embedment. Grounding electrode shall be connected to the structure by a grounding electrode conductor with a minimum size of 2 AWG for poles with 75 feet mounting height or less, and 2/0 AWG for poles with more than 75 feet mounting height. 2. Underground wiring shall be all copper wire and shall be installed in PVC Schedule 40 conduit and shall be buried to a depth meeting the NEC and local electrical codes. Acceptable copper wire types need to comply with any local requirements, but will be labeled either THHN or THWN. If above ground conduit must be used, it shall be rigid galvanized steel. Conduit elbows located at the electrical panel shall be rigid galvanized steel.