2651524024 Construct Perimeter Roads and Parking Lots Addendum 1.pdf

PDF 2 MB Posted Aug 21, 2025

Attached to: 511/25414. AGY; GAAF - Construct Perimeter Roads/Parking Lots
Solicitation number: RFQ-171-250000000588-3
Issued by: Clinton County, Michigan

About this file

Written by GovTribe AI · Aug 26, 2025

This document is an Addendum No. 1 issued by the State of Michigan Department of Military and Veterans Affairs for a construction project at the Grayling Army Airfield (GAAF). The project involves constructing perimeter roads and parking lots, with a bid opening scheduled for August 27, 2025, at 2:00 PM EST. The addendum provides clarifications and revisions to drawing sheets, specifications, and addresses several bidder questions. Specifically, it replaces sheets C8, C9, and C10, adds a specification section for lighting control, removes a section on liquid-filled transformers, and provides guidance on asphalt mix types, pavement thickness, and transformer specifications.

The addendum includes key clarifications such as approving the use of 4EL asphalt mix, confirming pavement thicknesses of 4 inches for parking lots and 5 inches for roads, and specifying the use of single-phase transformers. Additional requirements include providing six R1-1 (STOP) signs and details about fiber optic cable splicing. The document outlines technical specifications for lighting control equipment, including requirements for the lighting control cabinet, communication materials, and installation guidelines. Bidders are instructed to note the addendum on their Bid-Summary Sheet, ensuring they incorporate these changes into their proposal.

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Other files

File	Type	Posted
2651524024 Construct Perimeter Road Parking Lots GAAF Main Specs.pdf	PDF	Aug 21, 2025
2651524024 Construct Perimeter Road Parking Lots GAAF Drawings G1, C1-C5.pdf	PDF	Aug 21, 2025
2651524024 Construct Perimeter Road Parking Lots GAAF Prebid Sign In Sheet.pdf	PDF	Aug 21, 2025
2651524024 Construct Perimeter Road Parking Lots GAAF Drawings C6-C11, E1-E3.pdf	PDF	Aug 21, 2025
Service Disabled Veteran Owned Business Info Sheet 2025.pdf	PDF	Aug 21, 2025
DTMB0415 Advertisment (Rev 3-25) Construct Perimeter Roads - Parking Lots GAAF.pdf	PDF	Aug 21, 2025
2651524024 Construct Perimeter Roads and Parking Lots GAAF Mandatory Pre Bid Meeting Minutes.pdf	PDF	Aug 21, 2025

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FORM BF-1

State of Michigan DATE ISSUED: August 20, 2025 Department of Military and Veterans Affairs INDEX CODE NO: 1070 Construction & Facilities Office Project: 2651524024 Reserve Forces Service Center File No.: 511/25414.AGY 3423 N. Martin Luther King Blvd. Rm. 321 State Unit: Dept. of Military Affairs Lansing, Michigan 48906-2934

SUBJECT: Construct Perimeter Roads Parking Lots - GAAF BID OPENING: August 27, 2025, 2:00PM EST

ADDENDUM NO. 1

TO: All Bidders

SUBJECT: This Addendum is issued to revise and clarify the following items:

- Revisions to drawing sheets and specifications.

REVISED SHEETS:

1. Sheet C8 is replaced in its entirety.

2. Sheet C9 is replaced in its entirety.

3. Sheet C10 is replaced in its entirety.

ADDITIONS & REVISIONS TO SPECIFICATIONS

SPECIFICATIONS SECTION 260923 LIGHTING CONTROL: ADDED

SPECIFICATIONS SECTION 261200 LIQUID FILLED PADMOUNT TRANSFORMERS 3-PHASE: REMOVED

SPECIFICATIONS SECTION 261219 PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE

TRANSFORMERS: ADDED

QUESTIONS/ANSWERS & CLARIFICATIONS:

Question #1: 13A asphalt mix is no longer and MDOT DESIGN and has been replaced by 4EL in the 2020 MDOT spec book. Can 4EL be used on this project?

Answer #1: 4EL can be used on this project.

Question #2: IN BID SPEC for asphalt it refers to everything being 2” lift of 2" of HMA. In the plan it shows 4" in the parking lots and 5" of HMA on the roads. It is right to assume the plan is correct?

Answer #2: Follow the plans by using 4” in the parking lots and 5” on the roads.

Question #3: The one line drawing is showing single phase transformers but the there is only specs for a three phase transformer. Can you please verify if the transformers should be single or three phase. If they are to be single phase, can you please provide a spec section?

Answer #3: Provide a single phase transformer. The specification section 261219 Pad-Mounted, Liquid-Filled, Medium-Voltage Transformers will replace section 261200 Liquid Filled Padmount Transformers 3- Phase 24024.

Question #4: Is there any signage required for project?

Answer #4: Provide six (6) R1-1 (STOP) signs 30” x 30”, Type IIIA, 14 ft. 1-post, Steel 3 lb. at locations to be determined on project site.

Question #5: Print E1 note 6 has us running 24 strands of SM fiber from existing vault to new vault. Do we have to splice the new fiber in the existing vault? If yes, to what? What about in the new vault??

Answer #5: Splice all 24 strands of new fiber in existing vault to existing fiber using a splice enclosure as listed in specifications and test in new vault. A single fiber will have to be connected to new vault splice enclosure to new lighting control panels and tested.

ACKNOWLEDGEMENT: The acknowledgement for this Addendum shall be noted on the Bid-Summary Sheet.

FIRM NAME

Jon Jorgensen Design Manager BIDDER'S SIGNATURE Construction & Facilities Management Office

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989-344-6184

72 HOURS

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CALL Mr. Halcomb

BEFORE YOU DIG

MICHAEL HALCOMB

CAMP GRAYLING ENGINEERING

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BATAAN AVE.

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NEW RETENTION AREA 2

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NEW RETENTION AREA 1

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ADD 2" OF 21AA AND REGRADE AND COMPACT AREA, 2,905 SY

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MATCH EXISTING ASPHALT ROAD

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GRADING LIMITS

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NEW MILITARY PARKING

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PAVEMENT MARKING 45 DEGREE, 2' SPACING, TYP.

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MATCH EXISTING ASPHALT ROAD

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MATCH EXISTING ASPHALT ROAD AND ALIGN WITH EXISTING SIDEWALK ACROSS THE ROAD

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LEGEND

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SILT FENCE, 1,431' TOTAL

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EXISTING CONTOUR

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DEMOLISH AND DISPOSE OF ITEM

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GRADING LIMITS

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CLEAR AND GRUB AREA - 5,612 SY TOTAL

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REMOVE TOPSOIL, GRADE FOR NEW PAVEMENT SURFACE CROSS SECTION - 21,593 SY TOTAL

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* SOME AREAS HAVE MULTIPLE AREA TYPES FOR WORKSOME AREAS HAVE MULTIPLE AREA TYPES FOR WORK

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EXISTING CHAIN LINK FENCE

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PROPOSED HMA PAVEMENT, ALTERNATE 1, 10,041 SY TOTAL

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DETAIL CALLOUT

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PROPOSED MDOT TYPE B GUARDRAIL, 1,492 LF TOTAL

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PROPOSED EXT. LIGHT WITH POLE, 7 TOTAL

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PROPOSED GRASS AREAS, 8,071 SY TOTAL

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PROPOSED SIGN, 5 TOTAL

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PROPOSED CONCRETE, 20 SY TOTAL

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24' ASPHALT ROAD, 2,233 SY

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NEW ASPHALT PARKING AREA, 7,808 SY

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NEW MDOT GUARDRAIL TYPE B 511 LF

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NEW 4" CONCRETE SIDEWALK 179 SF

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1. ALL CONSTRUCTION LAYOUT SHALL BE COMPLETED BY ALL CONSTRUCTION LAYOUT SHALL BE COMPLETED BY CONTRACTOR APPROVED BY ENGINEER PRIOR TO CONSTRUCTION. CONTRACTOR SHALL STAKE ALL RADIUS POINTS FOR INSPECTION PRIOR TO WORK. 2. INSTALL ALL SILT FENCE, CHECK DAMS, RIP RAP, AND INSTALL ALL SILT FENCE, CHECK DAMS, RIP RAP, AND ANY OTHER SOIL EROSION & SEDIMENTATION CONTROL MEASURES PRIOR TO DEMOLITION OR CONSTRUCTION. 3. UNLESS SPECIFICALLY NOTED FOR REMOVAL ON THE UNLESS SPECIFICALLY NOTED FOR REMOVAL ON THE PLANS, ALL SIDEWALKS DRIVES, PAVEMENT, CULVERTS, GUARDRAILS, AND UTILITIES SHALL BE PROTECTED. ANY ITEMS DAMAGED OR DESTROYED DURING CONSTRUCTION SHALL BE REMOVED AND REPLACED INCIDENTAL TO CONSTRUCTION. 4. PLACE AND COMPACT ALL NEW MATERIAL TO PLACE AND COMPACT ALL NEW MATERIAL TO ACCOMMODATE THE CROSS SECTIONS SHOWN ON THE PLANS. MATERIAL SHALL BE COMPACTED TO DENSITY PER SPECIFICATIONS. 5. PLANS DO NOT IDENTIFY ALL TREES WITHIN THE WORK PLANS DO NOT IDENTIFY ALL TREES WITHIN THE WORK AREA. THE CONTRACTOR SHALL DETERMINE THE QUANTITY OF TREES AND BRUSH PRESENT WITHIN THE WORK AREA THAT WILL NEED TO BE REMOVED TO COMPLETE THE WORK. NO ADDITIONAL PAYMENTS WILL BE MADE FOR THE REMOVAL OF ANY TREES AS REQUIRED TO COMPLETE THE WORK. 6. GRADING LIMITS ARE 15' BEYOND EDGE OF PROPOSED GRADING LIMITS ARE 15' BEYOND EDGE OF PROPOSED SHOULDER UNLESS OTHERWISE INDICATED. TREES 6" AND LARGER MAY REMAIN UNLESS THEY ARE WITHIN 10' OF SHOULDER OR THEY INTERFERE WITH PROPOSED DITCH SECTIONS. LIMBS, BRANCHES AND BRUSH SHALL BE CHIPPED. STUMPS AND WOOD CHIPS SHALL BE PLACED AT A LOCATION TO BE DESIGNATED ONSITE WITHIN ONE MILE OF WORK AREA. 7. REMOVE ALL TOPSOIL & VEGETATION WITHIN THE LIMITS REMOVE ALL TOPSOIL & VEGETATION WITHIN THE LIMITS OF THE PROPOSED HMA PAVEMENT, GRAVEL SHOULDERS, GRAVEL PARKING AREAS. DISPOSE OF ONSITE AT A LOCATION TO BE DESIGNATED WITHIN ONE MILE OF WORK AREA. 8. REGRADE AND COMPACT EXISTING GRAVEL SURFACE AS REGRADE AND COMPACT EXISTING GRAVEL SURFACE AS REQUIRED TO ACCOMMODATE THE CROSS SECTIONS SHOWN ON THE PLANS. PLACE AND COMPACT NEW BASE MATERIAL OVER GRAVEL AND TRENCHES. BASE SHALL BE COMPACTED TO 95% OF ITS UNIT DENSITY. 9. PLACE HMA SURFACE IN TWO LIFTS , (NOTIFY ENGINEER PLACE HMA SURFACE IN TWO LIFTS , (NOTIFY ENGINEER (NOTIFY ENGINEER 48 HOURS PRIOR PLACING HMA SURFACE). . 10. PLACE AND COMPACT GRAVEL SHOULDERS. PLACE AND COMPACT GRAVEL SHOULDERS. 11. RESTORE ALL DISTURBED LAWN AREAS WITH 4" OF RESTORE ALL DISTURBED LAWN AREAS WITH 4" OF TOPSOIL, FERTILIZER, SEED AND MULCH BLANKET. ALL TOPSOIL SHALL BE FURNISHED. 12. REMOVE SURPLUS OBSTRUCTIONS, DEMOLISHED REMOVE SURPLUS OBSTRUCTIONS, DEMOLISHED MATERIALS, AND WASTE MATERIALS, AND LEGALLY DISPOSE OF THEM OFF OF OWNER'S PROPERTY.

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NEW MDOT GUARDRAIL TYPE B 330 LF

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UTILITIES

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MATCH EXISTING ASPHALT ROAD

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GRADING LIMITS

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SPECIAL ENVIRONMENTAL HANDLING NOTES

1. SOIL HANDLING AT THE GAAF SOIL HANDLING AT THE GAAF A. NO EXCAVATED SOIL IS TO BE TRANSPORTED OFF THE GAAF. NO EXCAVATED SOIL IS TO BE TRANSPORTED OFF THE GAAF. B. ALL EXCAVATED SOIL AND SOIL SPOILS (I.E., SOIL GENERATED FROM ALL EXCAVATED SOIL AND SOIL SPOILS (I.E., SOIL GENERATED FROM HYDRAULIC PUSH UPHEAVAL OR AUGER, SOIL ADHERED TO CONSTRUCTION DEBRIS, ETC.) IS TO REMAIN WITHIN THE AREA IMMEDIATELY SURROUNDING ANY CONSTRUCTION OF A FOUNDATION, FOOTERS, TRENCH, HOLE, OR ANY OTHER TYPE OF MECHANICAL OR MANUAL EARTH MOVING AT THE CONSTRUCTION SITE. C. SOIL CAN BE FEATHERED ON THE GROUND SURFACE WITHIN THE SOIL CAN BE FEATHERED ON THE GROUND SURFACE WITHIN THE CONSTRUCTION SITE DISTURBED BOUNDARY. IF THE VOLUME OF SPOILS GENERATED IS GREATER THAN CAN BE SATISFACTORILY FEATHERED ON THE GROUND SURFACE, THEN THE SPOILS CAN BE USED TO DEVELOP A SHALLOW BERM ON A CASE-BY-CASE BASIS AND AT THE DIRECTION OF CFMO. D. IF THE CONSTRUCTORS ENCOUNTER SOIL WITH FUEL OR IF THE CONSTRUCTORS ENCOUNTER SOIL WITH FUEL OR PETROLEUM/OIL/LUBRICANT (POL) CHARACTERISTICS, OR IF DISCOLORED SOIL IS ENCOUNTERED, OR ANY OTHER TYPE OF ANOMALOUS SOIL CHARACTERISTIC, THEN THE CONSTRUCTION PROJECT MANAGER SHOULD IMMEDIATELY ISSUE A STOP WORK ORDER AT THE LOCATION AND NOTIFY THE CG ENVIRONMENTAL POC JON FREEMAN AT 989-390-6999. JON WILL PUT INTO MOTION SPILL RESPONSE ACTIONS TO EVALUATE THE NATURE AND EXTENT OF CONTAMINATION. 2. GROUNDWATER HANDLING AT THE GAAF GROUNDWATER HANDLING AT THE GAAF A. IF GROUNDWATER INFILTRATES INTO EXCAVATION CAVITIES OR TRENCHES IF GROUNDWATER INFILTRATES INTO EXCAVATION CAVITIES OR TRENCHES AND NEEDS TO BE REMOVED FOR WORK TO CONTINUE, ITCAN BE HANDLED IN ONE OF TWO WAYS: A.1. THE GROUNDWATER CAN BE PUMPED ONTO THE ADJACENT GROUND THE GROUNDWATER CAN BE PUMPED ONTO THE ADJACENT GROUND SURFACE IN THE IMMEDIATE VICINITY OF THE EXCAVATION CAVITY OR TRENCH. A.2. THE GROUNDWATER CAN BE PUMPED AND TEMPORARILY THE GROUNDWATER CAN BE PUMPED AND TEMPORARILY CONTAINERIZED IN DRUMS, AND WHEN THE CONSTRUCTING WORK ALLOWS, DECANTED ONTO THE GROUND SURFACE IMMEDIATELY ADJACENT TO THE LOCATION WHERE THE GROUNDWATER WAS REMOVED. 3. CONCRETE DEBRIS CONCRETE DEBRIS A. REASONABLE EFFORT MUST BE MADE TO: REASONABLE EFFORT MUST BE MADE TO: A.1. MINIMIZE THE VOLUME OF SOIL ADHERING TO THE CONCRETE DEBRIS MINIMIZE THE VOLUME OF SOIL ADHERING TO THE CONCRETE DEBRIS BY BRUSHING THE SOIL OFF AT THE GAAFCONSTRUCTION SITE. A.2. KEEP CONCRETE PIECES AS LARGE AS POSSIBLE. KEEP CONCRETE PIECES AS LARGE AS POSSIBLE. B. RUNWAY. SURFACE AND SUBSURFACE CONCRETE DEBRIS RECOVERED RUNWAY. SURFACE AND SUBSURFACE CONCRETE DEBRIS RECOVERED FROM THE RUNWAY SHALL BE TRANSPORTED TO THE ON-SITE AREA DESIGNATED BY THE GAAF MANAGER. C. NON-RUNWAY. SURFACE AND SUBSURFACE CONCRETE DEBRIS NON-RUNWAY. SURFACE AND SUBSURFACE CONCRETE DEBRIS RECOVERED FROM ANYWHERE OTHER THAN THE RUNWAY SHALLBE TRANSPORTED TO THREE SISTERS AND PLACED IN THE EXISTING CONCRETE RUBBLE PILE.

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NEW GRADE

LIGHTING CONTROL 260923 - 1

SECTION 260923 - LIGHTING CONTROL

PART ONE GENERAL

1.01 SECTION INCLUDES

A. Section Includes lighting control materials consisting of:

1. Lighting contactors.

2. DIN rail mounted circuit breakers.

3. DIN rail mounted terminal blocks.

4. Ethernet switch.

5. Communication media adapter.

6. Optical fiber cable termination housing.

7. Closet connector termination housing panel.

8. Power supply.

9. Overall Lighting Control Cabinet (LCC).

1.02 SYSTEM DESCRIPTION

1. Furnish and install a Lighting Control Cabinet (LCC) purchased from:

a. Park Detroit, 19197 Sherwood Ave., Detroit, MI 48234

b. Contact personal: Steve Sullivan, Scott Brumley, or Clark Justin

c. Telephone number: (313) 366-2200; Website: www.parkdetroit.com

2. Lighting control cabinets shall be furnished and installed for the purpose of protecting the lighting control equipment and network components, including fiber optic termination panels, from rain, dust, vandalism and other conditions found in an outdoor or otherwise harsh environment.

3. This specification defines the minimum requirements for performance, fabrication, connection, testing and startup of the site lighting control system.

4. The lighting control cabinets shall be the interface between the parking lot lighting fixtures and the remote control of them via the fiber optic cable network.

5. Once an “enable” signal is sent from a remote computer, the selected circuit shall turn-on via a signal sent via optical fiber cable from airport control to the lighting control cabinet, translated by the media adapter, into an Ethernet switch, then a programmable logic controller (PLC), which will pull-in the correct lighting contactor.

6. Programming of the PLC will be carried out by the owner. All materials field materials including the fiber optic cable up to building 1400 shall be provided for and installed by the contractor.

7. The manufacturer must be able, upon request, to produce part numbers on all components for repair purposes.

1.03 SUBMITTALS

A. Product Data: For each type of product.

B. Operation and maintenance data.

1.04 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Where applicable, listed and labeled as defined in

NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

B. Electrical Components, Devices, and Accessories: Where applicable, listed and labeled as defined in

NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

PART TWO PRODUCTS

LIGHTING CONTROL 260923 - 2

2.01 LIGHTING CONTACTORS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. General Electric Company; GE Consumer Industrial.

2. Square D.

B. Description: Refer to the DRAWINGS for contactor quantity required in each lighting control enclosure and contactor quantity of poles and pole amperage ratings.

2.02 DIN RAIL MOUNTED CIRCUIT BREAKERS

A. DIN rail mounted circuit breakers: Provide the quantity and size of DIN rail mounted circuit breakers as shown on the Drawings, as manufactured by Eaton, catalog number WMZT, in 1-pole, 2-pole, or 3-pole as required, with the following characteristics.

a. UL approved (UL 489) and CSA Certified (CSA C22.2 No.5-02) as branch circuit breakers.

b. Mounting: DIN rail mounting, 35 mm.

c. Interrupting capacity: Standard ratings @ 10 kA UL/CSA; 15 kA IEC 60947.

d. Captive screws.

e. SWD (switching duty rated) – suitable of switching fluorescent lighting loads.

f. Contact Position Indicator (red / green).

2.03 DIN RAIL MOUNTED TERMINAL BLOCKS

A. DIN rail mounted terminal blocks: Provide the quantity and size of DIN rail mounted terminal blocks as required to connect the various equipment within the enclosure and as needed to connect the incoming and outgoing circuits with 25% spare terminal blocks. Terminal blocks as manufactured by Eaton, catalog number NDN3, with the following characteristics.

a. UL approved (UL E62622) and CSA File 156364.

b. Mounting: DIN rail mounting, 35 mm.

c. Feed-through style.

d. Rated voltage: 600V

e. Ampacity rating: 30A.

f. Screw size: #6-32.

2.04 OVERALL LIGHTING CONTOL ENCLOSURE

A. Refer to the “Typical Panelboard and Lighting Control Cabinet (LCC) Detail” Notes found on sheet E1 and the TYPICAL MV TRANSFORMER, DFSE, HANDHOLD, AND EXTERIOR RACK MOUNTED EQUIPMENT DETAIL found on sheet E3 for overall lighting control cabinet (LCC) information. These details along with this specification section encompass the requirements of the Lighting Control Cabinets.

B. Performance:

1. The enclosure(s) shall meet or exceed the requirements of a NEMA 3R rating, and shall be U.L.

listed.

C. Cabinet Construction:

1. The cabinet and door(s) shall be constructed from 5052-H32 sheet aluminum alloy that has a thickness of 0.125 inches. External welds shall be made by using the Heliarc welding method;

whereas, internal welds will be made by the wire welding method. All welds shall be neatly formed and free of cracks, blow holes and other irregularities. NOTE: There shall be 1 door on the front.

2. All inside and outside edges of the cabinet shall be free of burrs.

3. The cabinet shall be designed with a crowned top to prevent the accumulation of water on its top surface.

4. The door opening shall be double flanged on all (4) sides which increases strength around openings and keeps dirt and liquids from entering the enclosure when door is opened.

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LIGHTING CONTROL 260923 - 3

5. A door restraint shall be provided to prevent door movement in windy conditions.

D. Door Hardware:

1. The door opening will be a minimum of 80% of the front surface area.

2. The door shall be furnished with a gasket that satisfies the physical properties as found in UL508 table 21.1 and shall form a weathertight seal between the cabinet and door.

3. The door hinges shall be continuous and bolted to the cabinet and door utilizing 1/4-20 stainless steel carriage bolts and nylock nuts.

4. The hinges shall be made of 0.075-inch-thick stainless steel with a 0.25-inch stainless steel hinge pin.

5. The hinge pin shall be capped top and bottom by weld to render it tamperproof.

6. Hinge leaves will not be exposed externally when the door is closed, but hinge knuckles may protrude.

7. The latching mechanism shall be a 3-point draw roller type using an overlapping door design.

8. Pushrods will be turned edgewise at the outward supports and shall be 0.250-inch by 0.750-inch aluminum, minimum.

9. Rollers shall have a minimum diameter of 0.875-inch and will be made of nylon. The center catch shall be fabricated from .187 aluminum, minimum.

10. An operating handle shall be furnished, constructed from stainless steel with a ¾ inch diameter shank.

11. The latching handle shall have a provision for padlocking in the closed position.

12. A light/alarm switch bracket shall be provided.

E. Cabinet Ventilation / Fan Kit:

1. The cabinet shall be provided with louvered vents in the front door with a removable air filter.

2. Louvers shall satisfy the NEMA rod entry test for 3R ventilated enclosures.

3. The filter will cover the vents and shall be held firmly in place with bottom and side brackets with a spring-loaded upper clamp.

4. Exhaust air will be vented out between the top of the cabinet and door through a series of .120 x 1.0-inch rectangular holes.

5. The ventilation plenum area shall be equipped with a removable plate with provisions for mounting the fan assembly.

6. The ventilation system will consist of a fan and thermostat assembly.

7. The ventilation system will be designed to handle a minimum of 100 cubic feet of air per minute.

F. Cabinet Finish:

1. The outside surface of the cabinet shall have a smooth, uniform, natural aluminum finish.

G. Electrical:

1. The cabinet shall be supplied with an electrical distribution power board equipped to support up to two 15 Amp breakers

2. Must include two standard NEMA 5-15R, 125 VAC receptacles and two GFI receptacles

3. The power board shall be equipped with all necessary terminal strips and ground bars.

2.05 LIGHTING CONTROL COMMUNICATION MATERIALS

A. GENERAL

Provide and install within each new lighting control cabinet the following types and quantity of communications equipment.

1. Five-port Ethernet Switch: Provide one 5-port Ethernet switch as manufactured by Hirschmann, model number 943 824-004; SPIDER 5TX 10/100BASE-TX, TP CABLE, RJ45 sockets.

a. Operating Voltage: 9.6 VDC to 32 VDC.

b. Mounting: DIN rail mounting, 35 mm.

LIGHTING CONTROL 260923 - 4

c. Dimensions: 25 mm x 114 mm x 79 mm.

2. Media Adapter: Provide one Ether to Fiber media adapter as manufactured by Hirschmann, model number 943 891-001; SPIDER 1TX/1FX-SM media adapter, 10/100 MBIT/S.

a. Operating Voltage: 9.6 VDC to 32 VDC.

b. Mounting: DIN rail mounting, 35 mm.

c. Dimensions: 25 mm x 114 mm x 79 mm.

3. Single Panel Housing: Provide one Single Panel Housing for termination of optical fiber cables and housing a CCH connector panel as manufactured by Corning, model number SPH-01P.

a. Capable of wall mounting.

b. Metal housing with built-in splice tray.

c. DIN rail mountable.

d. Dimensions: 16 cm x 14 cm x 5 cm (6.3 in x 5.5 in x 2.0 in).

4. Closet Connector Housing (CCH) Panel, SC Adapters: Provide one Closet Connector Housing panel (CCH-CP) as manufactured by Corning, model number CCH-CP06-56; SC adapter compatible, Simplex, 6 F, 62.5 μm multimode (OM1).

a. Mount within the Single Panel Housing outlined in #3 above.

5. Rail Power Supply: Provide one Power Supply as manufactured by Hirschmann, model number 943

662-121; RPS 120 EEC (CC).

a. Input Voltage: 100 -240 VAC.

b. Output Voltage: 24 - 28 VDC, externally adjustable.

c. Dimensions: 40 mm x 124 mm x 117 mm.

6. Programmable Logic Controller (PLC): Provide one PLC as manufactured by Smart Controls, model

S-EC240P-F-M.

a. Communications: LonTalk Protocol.

b. Transceiver: FTT-10, Free Topology.

c. Processor: Neuron FT3150@ 10MHz.

d. Power Input Voltage: 24 VAC; Input voltage range: 21 – 28 VAC.

e. Output power protection: +20V Output auto-reset fuse.

f. Operating temperature: -4˚F to 158˚F (-40˚C to +70˚C).

g. Inputs: 12 jumper selectable (0-5V, 0-10V, 4-20mA).

h. Outputs: 12, 6 digital, 6 universal – jumper selectable.

i. Dimensions: 105mm x 85mm x 58mm.

7. Ethernet to LonWorks/IP Server: Provide one Ethernet to LonWorks i.LON 600 converter as manufactured Echelon, model 7260.

a. Communications input: 10/100 BaseT IP-based LAN.

b. Communications output: LonTalk Protocol.

c. Power Input Voltage: 24 VAC; Input voltage range: 21 – 28 VAC.

d. Operating temperature: Operating: 0˚ to +50˚C, Non-operating: -40˚C to +85˚C.

e. Dimensions: 8.9cm x 13.8cm x 6.6cm (HxWxD).

PART THREE EXECUTION

3.01 INSTALLATION

A. Wiring Method: Comply with Section 260519 "Low-Voltage Electrical Power Conductors and Cables."

Minimum conduit size is 3/4 inch.

B. Identify components and power and control wiring according to Section 260553 "Identification for Electrical Systems."

3.02 FIELD QUALITY CONTROL

LIGHTING CONTROL 260923 - 5

A. Perform the following tests and inspections:

1. Operational Test: After electrical circuitry has been energized, start units to confirm proper unit operation.

2. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

B. Lighting control devices will be considered defective if they do not pass tests and inspections.

END OF SECTION 260923

PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE

TRANSFORMERS

261219 - 1

SECTION 261219 - PAD-MOUNTED, LIQUID-FILLED, MEDIUM-VOLTAGE

TRANSFORMERS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Pad-mounted, liquid-filled, medium-voltage transformers.

1.2 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include rated capacities, operating characteristics, and furnished specialties and accessories.

B. Shop Drawings: Prepare and submit the following:

a. Plan view and cross section of equipment base, showing clearances, required workspace, and locations of penetrations for grounding and conduits.

2. Details of equipment assemblies and indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of field connections.

3. Single-line diagram.

4. List of materials.

5. Nameplate data.

6. Manufacturer's published time-current curves of transformer line-side fuses, with transformer damage curve, inrush curve, and thru fault current indicated.

1.3 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For transformer and accessories to include in emergency, operation, and maintenance manuals.

PART 2 - PRODUCTS

2.1 SYSTEM DESCRIPTION

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

B. Comply with IEEE C2.

C. Comply with IEEE C57.12.00.

2.2 PERFORMANCE REQUIREMENTS

A. Windings Material: Aluminum or Copper.

B. Surge Arresters: Comply with IEEE C62.11, Distribution Class; metal-oxide-varistor type, fully shielded, separable-elbow type, suitable for plugging into the inserts provided in the high-voltage

261219 - 2 section of the transformer. Connected in each phase of incoming circuit and ahead of any disconnecting device.

C. Winding Connections: The connection of windings and terminal markings shall comply with

IEEE C57.12.70.

D. Efficiency: Comply with 10 CFR 431, Subpart K.

E. Insulation: Transformer kVA rating shall be as follows: The average winding temperature rise above a 30 deg C ambient temperature shall not exceed 65 deg C and 80 deg C hottest-spot temperature rise at rated kVA when tested according to IEEE C57.12.90, using combination of connections and taps that give the highest average winding temperature rise.

F. Tap Changer: External handle, for de-energized operation.

G. Tank: Sealed, with welded-on cover.

H. Enclosure Integrity: Comply with IEEE C57.12.28 for pad-mounted enclosures that contain energized electrical equipment in excess of 600 V that may be exposed to the public.

I. Mounting: An integral skid mounting frame, suitable to allow skidding or rolling of transformer in any direction, and with provision for anchoring frame to pad.

J. Insulating Liquids:

1. Less-Flammable Liquids:

a. Edible-Seed-Oil-Based Dielectric: Listed and labeled by an NRTL as complying with NFPA 70 requirements for fire point of not less than 300 deg C when tested according to ASTM D92. Liquid shall be biodegradable and nontoxic, having passed the Organization for Economic Cooperation and Development G.L.203 with zero mortality, and shall be certified by the U.S. Environmental Protection Agency as biodegradable, meeting Environmental Technology Verification requirements.

b. Biodegradable and Nontoxic Dielectric: Listed and labeled by an NRTL as complying with NFPA 70 requirements for fire point of not less than 300 deg C when tested according to ASTM D92.

K. Sound level shall comply with NEMA TR 1 requirements.

L. Corrosion Protection:

1. Transformer coating system shall be factory applied, complying with requirements of IEEE

C57.12.29, in manufacturer's standard color green.

2.3 SINGLE-PHASE, PAD-MOUNTED TRANSFORMERS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

1. ABB.

2. Cooper Industries, Inc. (Eaton)

3. General Electric Company.

4. Howard Industries, Inc.

261219 - 3

B. Description: Less-flammable-liquid-filled, two-winding, 60-Hz, 65 deg C rise above a 30 deg C average ambient, self-cooled transformer.

1. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA

70, by a qualified testing agency, and marked for intended location and application.

2. Comply with IEEE C57.12.25.

C. Compartment Construction:

1. Individual compartments for high- and low-voltage sections, formed by steel isolating barriers that extend full height and depth of compartments. With hinged, lift-off doors, with a stop in the open position, three-point latching, and provision for padlocking.

D. Primary Fusing: Designed and rated to provide thermal protection of transformer by sensing overcurrent and high liquid temperature.

1. 150-kV BIL current-limiting fuses, conforming to the requirements of IEEE C37.47.

2. Interrupting Rating: 50,000 root mean square (rms) A symmetrical at the system voltage.

3. Fuse Assembly: Bayonet-type, liquid-immersed, expulsion fuses in series with liquid immersed, partial-range, current-limiting fuses. Bayonet fuse shall sense both high currents and high oil temperatures to provide transformer with thermal protection.

4. Provide bayonet fuse assembly with an oil retention valve and an external drip shield inside the housing to eliminate or minimize oil spills. Valve shall close when fuse holder is removed.

5. Provide a conspicuously displayed warning adjacent to the bayonet fuse(s), cautioning against removing or inserting fuses unless transformer has been deenergized and tank pressure has been released.

E. High-Voltage Section: Dead-front design.

1. To connect primary cable, use separable insulated connectors; coordinated with and complying with requirements of Section 260513 "Medium-Voltage Cables." Bushings shall be one-piece units, with ampere and BIL ratings the same as connectors.

2. Bushing inserts:

a. Conform to requirements of IEEE 386.

b. Rated at 200 A, with voltage class matching connectors. Provide a parking stand near each bushing well. Parking stands shall be with insulated standoff bushings for parking of energized load-break elbow connectors on parking stands.

c. Provide insulated protective caps for insulating and sealing out moisture from unused bushing inserts.

3. Bushing wells configured for loop-feed application.

4. Access to liquid-immersed fuses.

5. Dead-front surge arrester(s).

6. Tap-changer operator.

7. Ground pad.

F. Low-Voltage Section:

1. Bushings with spade terminals drilled for terminating the number of conductors indicated on the Drawings, and the lugs that comply with requirements of Section 260519 "Low- Voltage Electrical Power Conductors and Cables."

G. Capacities and Characteristics:

1. Power Rating (kVA): As indicated on the Drawings.

2. Voltage Ratings: As indicated on the Drawings.

3. Taps: Four 2.5 percent, full-capacity taps below rated primary voltage.

261219 - 4

4. Transformer BIL (kV): Comply with IEEE C57.12.25 requirements.

5. Minimum Tested Impedance (Percent at 85 deg C): 2.1.

H. Transformer Accessories:

1. Drain and filter connection.

2. Filling and top filter press connections.

3. Pressure-vacuum gauge.

4. Dial-type analog thermometer with alarm contacts.

5. Magnetic liquid level indicator with high and low alarm contacts.

6. Automatically resetting pressure-relief device. Device flow shall be as recommended by manufacturer.

7. Stainless-steel ground connection pads.

8. Machine-engraved nameplate made of anodized aluminum or stainless steel.

9. Sudden pressure relay for remote alarm or trip when internal transformer pressure rises at field-set rate. Provide without seal-in delay.

2.4 WARNING LABELS AND SIGNS

A. Comply with requirements for labels and signs specified in Section 260553 "Identification for Electrical Systems."

1. High-Voltage Warning Label: Provide self-adhesive warning signs on outside of high-voltage compartment door(s). Sign legend shall be "DANGER HIGH VOLTAGE" printed in two lines of nominal 2-inch- (50-mm)-)high letters. The word "DANGER" shall be in white letters on a red background and the words "HIGH VOLTAGE" shall be in black letters on a white background.

2. Arc Flash Warning Label: Provide self-adhesive warning signs on outside of highvoltage compartment door(s), warning of potential electrical arc flash hazards and appropriate personal protective equipment required.

2.5 SOURCE QUALITY CONTROL

A. Provide manufacturer's certificate that the transformer design tests comply with IEEE C57.12.90.

1. Perform the following factory-certified routine tests on each transformer for this Project:

a. Resistance.

b. Turns ratio, polarity, and phase relation.

c. Transformer no-load losses and excitation current at 100 percent of ratings.

d. Transformer impedance voltage and load loss.

e. Operation of all devices.

f. Lightning impulse.

g. Low frequency.

h. Leak.

i. Transformer no-load losses and excitation current at 110 percent of ratings.

j. Insulation power factor.

k. Induced potential.

l. Resistance measurements of all windings on rated voltage connection and at tap extreme connections.

m. Ratios on rated voltage connection and at tap extreme connections.

n. Polarity and phase relation on rated voltage connection.

o. No-load loss at rated voltage on rated voltage connection.

p. Exciting current at rated voltage on rated voltage connection.

q. Impedance.

261219 - 5

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine pad-mounted, liquid-filled, medium-voltage transformers upon delivery.

1. Upon delivery of transformers and prior to unloading, inspect equipment for any damage that may have occurred during shipment or storage.

2. Verify that tie rods and chains are undamaged and tight, and that all blocking and bracing is tight. Verify that there is no evidence of load shifting in transit, and that readings from transportation shock recorders, if equipped, are within manufacturer's recommendations.

3. Verify that there is no indication of external damage and no dents or scratches in doors and sill, tank walls, radiators and fins, or termination provisions.

4. Verify that there is no evidence of insulating-liquid leakage on transformer surfaces, at weld seams, on high- or low-voltage bushing parts, and at transformer base.

5. Verify that there is positive pressure or vacuum on tank. Check pressure gauge; it is required to read other than zero.

6. Compare transformers and accessories received with bill of materials to verify that shipment is complete. Verify that transformers and accessories conform with manufacturer's quotation and shop drawings. If shipment is incomplete or does not comply with Project requirements, notify manufacturer in writing immediately.

7. Verify presence of polychlorinated biphenyl content labeling.

8. Unload transformers carefully, observing all packing label warnings and handling instructions.

9. Open termination compartment doors and inspect components for damage or displaced parts, loose or broken connections, cracked or chipped insulators, bent mounting flanges, dirt or foreign material, and water or moisture.

B. Handling:

1. Handle transformers carefully, in accordance with manufacturer recommendations, to avoid damage to enclosure, termination compartments, base, frame, tank, and internal components. Do not subject transformers to impact, jolting, jarring, or rough handling.

2. Protect transformer termination compartments against entrance of dust, rain, and snow.

3. Transport transformers upright, to avoid internal stresses on core and coil mounting assembly and to prevent trapping air in windings. Do not tilt or tip transformers.

4. Verify that transformer weights are within rated capacity of handling equipment.

5. Use only manufacturer-recommended points for lifting, jacking, and pulling. Use all lifting lugs when lifting transformers.

6. Use jacks only at corners of tank base plate.

7. Use nylon straps of same length to balance and distribute weight when handling transformers with a crane.

8. Use spreaders or a lifting beam to obtain a vertical lift and to protect transformer from straps bearing against enclosure. Lifting cable pull angles may not be greater than 15 degrees from vertical.

9. Exercise care not to damage tank base structure when handling transformer using skids or rollers. Use skids to distribute stresses over tank base when using rollers under large transformers.

C. Storage:

1. Store transformers in accordance with manufacturer's recommendations.

2. Transformers may be stored outdoors. If possible, store transformers at final installation locations on concrete pads. If dry concrete surfaces are unavailable, use pallets of adequate

261219 - 6 strength to protect transformers from direct contact with ground. Ensure transformer is level.

3. Ensure that transformer storage location is clean and protected from severe conditions.

Protect transformers from dirt, water, contamination, and physical damage. Do not store transformers in presence of corrosive or explosive gases. Protect transformers from weather when stored for more than three months.

4. Store transformers with compartment doors closed.

5. Regularly inspect transformers while in storage and maintain documentation of storage conditions, noting any discrepancies or adverse conditions. Verify that an effective pressure seal is maintained using pressure gauges. Visually check for insulating-liquid leaks and rust spots.

D. Examine areas and space conditions for compliance with requirements for padmounted, liquid-filled, medium-voltage transformers and other conditions affecting performance of the Work.

E. Examine roughing-in of conduits and grounding systems to verify the following:

1. Wiring entries comply with layout requirements.

2. Entries are within conduit-entry tolerances specified by manufacturer, and no feeders will cross section barriers to reach load or line lugs.

F. Examine concrete bases for suitable conditions for transformer installation.

G. Pre-Installation Checks:

1. Verify removal of any shipping bracing after placement.

2. Remove a sample of insulating liquid according to ASTM D923. Insulating-liquid values shall comply with NETA ATS, Table 100.4. Sample shall be tested for the following:

a. Dielectric Breakdown Voltage: ASTM D877 or ASTM D1816.

b. Acid Neutralization Number: ASTM D974.

c. Interfacial Tension: ASTM D971.

d. Color: ASTM D1500.

e. Visual Condition: ASTM D1524.

f. Water in Insulating Liquids: Comply with ASTM D1533.

H. Verify that ground connections are in place and that requirements in Section 260526 "Grounding and Bonding for Electrical Systems" have been met. Maximum ground resistance shall be 5 ohms at transformer location.

I. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install transformers on cast-in-place concrete equipment base(s). Comply with requirements for equipment bases and foundations specified in Section 033000 "Castin- Place Concrete."

B. Transformer shall be installed level and plumb and shall tilt less than 1.5 degrees while energized.

C. Maintain minimum clearances and workspace at equipment according to manufacturer's written instructions and IEEE C2.

261219 - 7

3.3 CONNECTIONS

A. Ground equipment according to Section 260526 "Grounding and Bonding for Electrical Systems."

1. For counterpoise, use tinned bare copper cable not smaller than No. 4/0 AWG, buried not less than 30 inches (765 mm) below grade interconnecting the grounding electrodes. Bond surge arrester and neutrals directly to transformer enclosure and then to grounding electrode system with bare copper conductors, sized as shown. Keep lead lengths as short as practicable, with no kinks or sharp bends.

2. Fence and equipment connections shall not be smaller than No. 4 AWG. Ground fence at each gate post and corner post and at intervals not exceeding 10 ft. (3050 mm). Bond each gate section to fence post using 1/8 by 1 inch (3 by 25 mm) flexible braided copper strap and clamps.

3. Make joints in grounding conductors and loops by exothermic weld or compression connector.

4. Terminate all grounding and bonding conductors on a common equipment grounding terminal on transformer enclosure.

5. Complete transformer tank grounding and lightning arrester connections prior to making any other electrical connections.

B. Connect wiring according to Section 260519 "Low-Voltage Electrical Power Conductors and Cables."

1. Maintain air clearances between energized live parts and between live parts and ground for exposed connections in accordance with manufacturer recommendations.

2. Bundle associated phase, neutral, and…

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