Renovation of a water / sewer project in Hazel Green, Alabama. Completed plans call for the renovation of a water / sewer project.

Madison County, Alabama is seeking bids to install power service, power distribution equipment, motor control centers, pump starters, and related electrical system components at Hazel Green Well, in Hazel Green, Alabama. Minor modifications to the site including concrete slab demolition, canopy construction, and site fencing will be included as part of the project. Madison County is seeking to make improvements to the existing Hazel Green Well. In general, the proposed improvements include: o Demolition of an existing, outdoor concrete slab that has settled. o Construction of a concrete slab and grade beams in the same location for the electrical equipment. o Installation of a new aluminum canopy for electrical equipment. o Re-routing and extending the existing caustic tank fill line. o New fencing and gates. o Demolishing obsolete power service and obsolete electrical systems. o Providing a new power service, power distribution equipment, motor control center, pump starters, etc. o Providing a docking station for a portable (owner-furnished) generator system and an automatic transfer switch. o Providing new lighting, receptacle, and HVAC electrical systems within the existing building(s). o Maintaining/reusing existing process equipment, HVAC equipment, instruments, and security systems at site. o Providing new circuitry and conduit systems for existing systems/equipment. o Providing new supplemental grounding system for facility. o Labeling all new and existing systems/equipment. o Coordinating schedule of all work with owner's SCADA Integrator to help ensure that SCADA PLC modifications are completed prior to end of construction (work within SCADA PLC is Not in Contract). Question Deadline 09/27/2024 at 3:00 PM CT Questions should be directed, in writing, to Vince Moody at vmoody@madisoncountyal.gov and Jennie Weatherly at jweatherly@madisoncountyal.gov The Madison County Commission reserves the right to award this bid on an all-or-none or item by item basis, to refuse all bids, and to waive technicalities. A. General Conditions: 1. The accompanying General Conditions (front-end specifications) shall apply to and form a part of this section. B. General Requirements: 1. Carefully examine General Conditions, other specification sections, and other drawings (in addition to Electrical) in order to be fully acquainted with their effect on electrical work. 2. Do all work in compliance with all applicable codes, laws, and ordinances, the National Electrical Safety Code, the National Electrical Code (hereinafter referred to as "Code"), applicable energy codes, and the regulations of the local utility companies. Obtain and pay for any and all required permits, inspections, certificates of inspections and approval, and the like. 3. Cooperate with other trades and contractors at job. Perform work in such manner and at such times as not to delay work of other trades. Complete all work as soon as the structure and installations of equipment will permit. Patch, in a satisfactory manner and by the proper craft, any work damaged by electrical workmen. 4. The Owner shall be provided access to all software to include copies of software for all systems provided under this division of the specifications. Software shall be password protected where applicable. 5. Only qualified electrical sub-contractors will be allowed to submit proposals for this project. In order to be considered qualified, contractor shall have completed a minimum of five (5) projects of similar type/scope and equal or greater magnitude and complexity within the last ten (10) years. Sub-contractors without qualifications will be rejected. If desired, potential electrical sub-contractors may submit qualification evidence for review and pre-bid approval a minimum of ten (10) days prior to bid. Previous projects used to meet this experience requirement must have included similar (or greater) scopes of work for each of the following areas: a. Power Systems. b. Control Systems. c. Instrumentation Systems. 6. Electrical contracting firm shall be licensed as an electrical contractor in the state where work will be performed A. Power Wires and Cables B. Low Voltage Wires and Cables A. THE WORK UNDER THIS SECTION INCLUDES BUT IS NOT LIMITED TO THE FOLLOWING: 1. Conduits 2. Conduit Fittings 3. Couplings & Connectors 4. Bushings 5. Raceway Hardware, Conduit Clamps & Supports 6. Watertight Entrance Seal Devices DESCRIPTION A. Outlet and Junction Boxes B. Pull Boxes C. Wireways DESCRIPTION A. Wire and cable identification. B. Pullbox & Junction Box Identification C. Electrical distribution & utilization equipment identification. D. Instrument and control device identification. E. Raceway identification. This section includes requirements for motor control centers (MCC's) and all required control devices as shown on the drawing and specified to be part of the MCC equipment. The MCC shall be 277/480 V, 3-Phase, 4-Wire, 60 Hz unless otherwise indicated. A. Wiring Devices B. Plates C. Finishes A. Safety Switches B. Fuses C. Branch Feeders D. Feeders A. Refer to Specification Section 26 24 19 (Motor Control Centers) or Specification Section 26 29 00 (Manufactured Control Panels) as applicable for additional requirements (for enclosure, component types, etc.). B. The soft starter shall be provided complete with a main circuit breaker disconnect means for Type 1 short circuit overcurrent protection as follows: 1. Short circuit withstand rating shall be equal to or greater than the AIC rating listed on the plans for the distribution equipment (motor control center, panelboard, switchboard, etc.) that feeds the soft starter. 2. Where the soft starter installed within a motor control center, refer to Motor Control Centers Specification Section 26 24 19. 3. Sized by manufacturer per NEC requirements for corresponding motor load. C. The motor shall be automatically protected from solid state component failure by the following means: 1. Isolation contactor that opens when the motor is stopped or when the controller detects a fault condition including a shorted SCR. D. The soft starter shall utilize an SCR bridge consisting of at least two SCRs per phase to control the starting and stopping of industry standard motors. 1. SCR stacks shall be arranged horizontally for proper heat management. 2. Heat sinks sized for specified Starts Per Hour without requiring auxiliary cabinet cooling fans. E. The soft start shall provide torque control for linear acceleration independent of motor load or application type without external feedback. The gating of the SCRs shall be controlled in such a manner to ensure stable and linear acceleration ramp. F. The soft starter shall be controlled by a microprocessor that continuously monitors the current and controls the phasing of the SCRs. Analog control algorithms will not be allowed. G. All soft starter power ratings shall utilize the same control board/module. H. A shorting contactor shall be standard on soft starters in all enclosure configurations. Protective features and deceleration control options integral to the soft starter shall be available even when the shorting contactor is engaged.