UTL Feeder J Upgrade 2019 ADDENDUM NO. 1Miami University March 18, 2019Project No. 181765

ADDENDUMPAGE 1 OF 2

ADDENDUM NO. 1

OWNER: Miami University – UTL Feeder J Upgrade 2019

ENGINEER: Fishbeck, Thompson, Carr & Huber, Inc.11353 Reed Hartman Highway, Suite 500Cincinnati, OH 45241

DRAWING REVISION NO.: A1

ISSUED HEREWITH:SPECIFICATIONS Bid Form (as attached by MU), 26 05 73

SHEETS: E100, E101, E102, E103, E401, E403

PREBID MEETING INFO Meeting Minutes, Pre-Bid Meeting Checklist, Sign-In Sheet

BIDS DUE: Tuesday, March 26, 2019 at 2:00 p.m.

This Addendum is issued to all Bid Set Holders, is a part of the Contract Documents, and modifies the previously issued Bidding Documents. Acknowledge receipt of this Addendum in the space provided on the Bid form; failure to do so may result in rejection of the Bid.

ITEM NO. 1:Pre-Bid Meeting Notes, Agenda, and Sign-in Sheet (Issued)

A. Meeting Minutes: See attachment.B. Pre-Bid Meeting Checklist: See attachment.C. Sign-In Sheet: See attachment.

ITEM NO. 2:Sheet G001 – Cover Sheet (Not Reissued)Alumni Weekend

A. Add note 14 which states “Alumni weekend is 6/6/19 through 6/9/19. No major outside work will be allowed during this weekend. Coordinate with Miami PM.”

ITEM NO. 3:Sheet E203 – Bonham House Partial Basement Electrical Demolition Plan (Not Reissued)A. Remove two extraneous key note 10s. One key note 10 is located next to key note 6 along conduit path outside

building. The other key note 10 is located inside the building south of the South Panel.

ITEM NO. 4:Sheet E204 – Campus Avenue Building Partial Basement Electrical Demolition Plan (Not Reissued)

A. Add Note 6: “Provide double layer of Visqueen plastic with sandbags around diesel fueling area and any other potential liquid spill location on equipment. Provide means to drain rain water as required.”

ITEM NO. 5:Sheet E401 – Partial 4160V One Line Diagram (Reissued)Feeder J Text Clarification

A. At P.S. 34 the text at the top and bottom of the pad switch is to be reversed and clarified.

UTL Feeder J Upgrade 2019 ADDENDUM NO. 1Miami University March 18, 2019Project No. 181765

ADDENDUMPAGE 2 OF 2

ADDENDUM NO. 1

ITEM NO. 6:Sheets G001 – Cover Sheet (Not Reissued)

E001 – Legends and Details (Not Reissued)Specification Section 26 05 73 - – Overcurrent Protective Device Coordination And Arc Flash Study (Reissued)Arc Flash and Coordination Studies

A. Sheet G001, note 7: Revise text to the following: “See specifications section 26 05 73, Overcurrent Protective Device Coordination and Arc Flash Study for details on Coordination and Arc Flash Studies and labeling required.”

B. Sheet E001: Remove box at middle/bottom with the heading “Overcurrent Protective Device Coordination and Arc Flash Study – Specification Section 26 05 73:”.

C. See attached revised specification section 26 05 73 – Overcurrent Protective Device Coordination and Arc Flash Study.

ITEM NO. 7:Sheets: E100 – Overall Electrical Site Plan (Reissued)

E101 – Enlarged Electrical Site Plan (Reissued)E102 – Enlarged Electrical Site Plan (Reissued)E103 – Enlarged Electrical Site Plan (Reissued)E401 – Partial 4160 One Line Diagram (Reissued)E403 – Partial 12470V One Line Diagram and Partial Macmillan Hall One Line Diagrams (Reissued)

Reused Cable Revisions

A. Cable identified to be reused will not be reused. Where cable is identified on the plans to be reused, provide new EPR cable and associated 600V ground wire of the same size as noted. Cable noted to be reused may be left in place unless it needs to be removed for other work. Otherwise, cable noted to be reused should be considered to be “existing MV cable to be remain.” Disconnect cable and bag ends for abandoned in place cables. Coordinate with Miami.

B. See reissued sheets: E100, E101, E102, E103, E401 and E403.

ITEM NO. 8:Sheet E501 – 6-Way Switch Electric Vault Detail (Not Reissued)Revise Conduit Size

A. Section View B-B: Revise conduit size for feed to transformer. Conduit size is to be 4-4” Dia. Bell End.

ITEM NO. 9:Bid Form (Reissued)Added Unit Cost Pricing for Two Medium Voltage Feeders with Ground

A. Add to Bid Form Unit Cost Pricing for the following items:1. Unit Cost for 100 ft. of 3/1-C #2 (15kV) and 1-#2 (600V) ground wire installed in duct bank.2. Unit Cost for 100 ft. of 3/1-C 4/0 (15kV) and 1-4/0 (600V) ground wire installed in duct bank.

END OF ADDENDUM

MEETING MINUTESPROJECT: Miami University (MU) UTL Feeder J Upgrade 2019 DATE: March 14, 2019

START: 10:00 a.m.SUBJECT: Pre-bid Meeting MinutesADJOURN: 11:00 a.m.

MEETING SITE: Cole Services Bldg., Room 137 DISTRIBUTED: March 18, 2019

PREPARED BY: James C. Rumping, PE/krs PROJECT NO.: 181765

ATTENDING: Mr. Joel Fellman – Miami University (MU)Mr. Terrance Ponder – MUMr. Bob Clontz – MUMr. Joe Costello – MayersMr. Bill Monterosso – BantaMr. Sean Mondello – Lake ErieMr. Greg Bulach – Lake ErieMr. John Lake – ESI Mr. Jim Rumping – FTCH

DISTRIBUTION: AttendeesMr. Scott Lessing – MU

Attachments ☒ Yes ☐ No Individuals in the distribution list will receive all attachments unless noted otherwise.

If information contained herein is thought to be inaccurate or incorrect, please contact writer at once for resolution.

1. Miami reviewed the front-end requirements including mandatory items required at bid.2. Miami reviewed the pre-bid meeting checklist (see attached). Items discussed but not part of the checklist

include:a. Schedule of Values (SOV) must be submitted and approved prior to first submitted billing.b. Miami to confirm potential impact to project due to Alumni Weekend.

3. FTCH reviewed the drawings and specifically noted the following items:a. Sheet G001: Notes 3 and 7, and work scope not subject to completion during 2019 summer (i.e., you

can do this work before May 20, 2019), Scope subject to completion during 2019 summer (May 20, 2019 through August 19,2019).

b. Sheet E100: Note the legend for cable types shown on each site plan and the note on the bottom right of the sheet.

c. Sheet E101: Note the cable to be provided by MU for Harris Dining Hall.d. Sheet E102 – Rec Sports Center: Note the new work including demo of the existing pad switch and new

cables to feed existing substations.e. Sheet E102 – Campus Avenue Building (CAB): Note the new vault and transformer. The new vault lid

will be provided by MU.

Meeting Minutes: Pre-bid Meeting MinutesMeeting Date: 03/14/2019Page 2 of 2

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f. Sheets E201 and E202 – MacMillan Hall: Note demolition of portions of the existing gear, the new site transformer, new 208V feeders into the building, connection to the existing switchboard through a custom pullbox, and the retrofit kit required for a new main circuit breaker.

g. Sheet E203 – Williams Hall: Note one of the existing transformer pads will need to be leveled before installation of the replacement transformer on it.

h. Sheets E204 and E205 – CAB: Note the doorway restrictions through which new gear and oil-filled transformer will need to go through. Note the existing pits below equipment and temporary power requirements for the building which will need to remain in operation, except for short shutdowns during non-normal work hours. Note photo A, sheet E205 as an example of existing penetrations that will need to be filled throughout the Main Electric Room to maintain the 1-hour fire separation.

i. Sheet E402: Note MU provided pad switch PS48.j. Sheet E404: See notes regarding specific feeders routed through pits in the floor vs. overhead.k. Sheet E501: Note the vault is provided by the contractor. Contractor should either ship vault lid

(provided by MU and on Oxford Campus) to the vault manufacturer or otherwise ensure existing lid fits new vault.

4. RFIs are required to be submitted in writing (email is preferred) no later than end-of-the-day March 20, 2019. The last addendum can be issued no later than March 21, 2019 at 2pm without a bid extension.

5. Fault current/Arc Flash studies: This will be clarified in an upcoming addendum including specifically for Stanton and Dodds Halls.

6. CAB Temporary Generators: Diesel fuel spill containment is to be provided for generators. Additional information will follow in an upcoming addendum.

7. Reused Cable - Change: Cable designated to be reused on the drawings will, instead, be furnished and installed by the contractor as new. Where cable designated to be reused can remain in place, contractor is to leave cable in place. Where pathways are needed for new cable installation, contractor is to remove cable and scrap the wire. This will be addressed in more detail in an upcoming bulletin.

8. See attached sign-in sheet.

UTL Feeder ‘J’ Upgrade 2019Pre-Bid Meeting Checklist10:00 AM, March 14, 2019

o Circulate Attendance Sheet

o A/E to take Meeting Minutes

FCO Checklist

o Bid Date: March 26, 2019 @ 2:00 PMo Detailed overview of the front end documents and bidding procedures.

PM Checklisto A/E to provide overview of project

o Introduce design team and provide contact information:Fishbeck, Thompson, Carr & Huber, Inc.James Rumping11353 Reed Hartman Hwy.Suite 500 Cincinnati, Ohio 45241Phone: 513-247-8575E-mail: jcrumping@ftch.com

Cc to: Joel Fellman at fellmajl@miamioh.eduScott Lessing at lessinsw@miamioh.edu

o The Electrical Contractor is the “General Contractor” for this project & hires the Mechanical & General sub-contractors as required.

o Temporary Emergency Generators required to power Campus Avenue Building during the outage for substation replacement. Refer to bid documents.

Overtime/Premium time is to be included in the bid as needed.o Review project schedule, milestone dates

First day of summer – May 20th

Substantial Completion – August 19th

o Project schedule shall be received for review and approval within 2 weeks of the Notice to Proceed.

o All power outages shall be coordinated 2 weeks prior minimum with MU PM. Anticipate all power outages/switchovers to take place early morning, after hours, or

on the weekend (anticipating Saturdays).

o Review University restrictions on working hours such as quiet week. (May 11-18)o Review Parking Procedures

All private vehicles must be parked on public streets or use gravel lot located on Bonham Road. (Fryman Farm)

Unless another option is provided. One red parking pass will be issued to for the company vehicle as needed for construction access.

Red Parking passes are $35 per month and are the responsibility of the contractor. See PM for approval of parking pass.

o Key Access Keys may be signed out daily and must be returned at the end of the day. Coordinate key access with MU PM.

o Review Safety & Security Responsibility Provide temporary barriers/signs, etc. to protect public from ditches, open manholes,

etc.o Review Site Construction Requirements

Submit plan for approval showing fence placement, staging area, generator location, etc.

Green area and trees inside fence must be maintained and protected. No storage under drip line of trees. No storage outside of construction fence without prior approval with MU.

o Quality Control A “Third-Party” cable testing firm is required for all MV Cables. Provide submittal is

not pre-approved testing firm is used.o State Permits and Inspections

Permits are submitted and provided by the Engineer/MU. General Contractor (EC) obtains and schedules required inspections with the state.

o Project Clean-Up Per Contract Documents. Daily cleanup is required.

o Salvage Materials Nothing may be burned or sold on site. Refer to the drawings regarding scrap cable removed out if service.

o Deliveries Must be received at project site. MU will not accept deliveries for job sites.

o Review Procedure for Asking & Responding to Questions Prior to Bid All questions must be in writing (email preferred) All questions regarding the front end documents must go through FCO. All technical questions will go FTC&H, Copy Joel Fellman with all questions/clarifications.

o Conduct Group Site Tour Individual tours may be scheduled as requested through MU PM.

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Overcurrent Protective Device Coordinationand Arc Flash Study

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SECTION 26 05 73 – OVERCURRENT PROTECTIVE DEVICE COORDINATION AND ARC FLASH STUDY

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections apply to this Section.

1.2 SUMMARY

A. This Section includes requirements for performing a computer-based, short circuit and protective device evaluation, coordination study, and arc-flash hazard analysis. 1. Contractor is to include in bid cost to field verify electrical distribution in each of the buildings noted

below to properly perform studies.2. The coordination studies shall include all major equipment in each building that can affect overcurrent

protection device settings.2.3. Miami will provide available primary fault current at each building after the contract has been awarded.

Coordinate with Miami.3. Available fault current label to be installed at first service disconnect, e.g. HVL/15kV switches or main

breaker section at each building where service voltage is changing where new service equipment is to be installed, where new medium voltage feeder is run to building, or where primary is refed from another source.

4. Provide an overcurrent protective device coordination study for the following buildings:a. MacMillan Hall.b. Campus Avenue Building (CAB).c. Bonham House.d. Williams Hall.

4.5. Provide ARC Flash study/labeling for the following buildings:is to be provided for electrical service and associated equipment in main electric rooms only:a. The four buildings noted above.b. Harris Dining Hall.c. Warfield Hall.d. Recreation Sports Center.e. Joyner House.f. Wells Hall.g. Hanna House.h. Sesquicentennial Chapel.i. McGuffey Museum.j. Goggin Ice Center.

6. Provide an available fault current label at the first service disconnect (e.g. HVL/15kV switches or main breaker section) in the following buildings:a. All buildings named above.b. Stanton Hall.c. Dodds Hall.a. Campus Avenue Building (CAB).b. Harris Dining Hall.c. MacMillen Hall.d. Williams Hall.

e. Bonham House.

1.3 REFERENCES

A. Except as herein specified or as indicated on the Drawings, the work of this Section shall comply with the following:1. NFPA 70 – National Electrical Code.2. NFPA 70E – Standard for Electrical Safety in the Workplace.3. IEEE 1584 – Guide for Performing Arc Flash Hazard Calculations.

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1.4 SUBMITTALS

A. Product Data: For computer software program to be used for studies.

B. Credentials of the subcontractor that is performing the study.

C. A preliminary draft study shall be submitted prior to releasing the electrical gear that is included in the study for manufacturing to ensure all equipment is properly rated for the available fault current. Conductor lengths may be scaled from the drawings.

D. A final study shall be submitted with the O&M manual that includes as-installed conditions, and all modifications to the systems during the construction process.

E. Short circuit and protective device evaluation, coordination study, and arc flash hazard analysis: 1. Submit a comprehensive list of each type of equipment proposed to be included in the study for review

and approval by Engineer prior to execution of the study.2. Include copies of all project-specific arc flash hazard warning labels and 1 sample label for review and

approval by Engineer.

F. Record of Final Low Voltage Circuit Protective Device Settings:1. Typewritten, bound in notebook form.2. Submit 2 copies.

1.5 QUALITY ASSURANCE

A. Short circuit and protective device evaluation, coordination study, and arc flash hazard analysis Subcontractor:1. Study to be performed by an independent Subcontractor that is currently involved in high-voltage,

medium-voltage, and low-voltage power system evaluations.2. The Subcontractor shall have a minimum of 5 years experience in power system evaluations. 3. The individual(s) performing the study shall be registered as a Professional Engineer in the state where

the Project is located.

1.6 DATA COLLECTION FOR SHORT CIRCUIT AND PROTECTIVE DEVICE EVALUATION, COORDINATION STUDY, AND ARC FLASH HAZARD ANALYSIS

A. Contractor Responsibilities: Provide all required data for preparation of the short circuit and protective device evaluation, coordination of study, and arc flash hazard analysis. Field verify existing distribution system in each building to obtain all required data.

B. Subcontractor Responsibilities: Provide a listing of all required data necessary to perform the short circuit and protective device evaluation, coordination study, and arc flash hazard analysis immediately after award of the Contract.

PART 2 - PRODUCTS

2.1 SHORT CIRCUIT AND PROTECTIVE DEVICE EVALUATION, COORDINATION STUDY, AND ARC FLASH HAZARD ANALYSIS

A. The Study shall include:1. Each portion of the new and existing 15kV switch, secondary unit substation, switchboard, and

associated loads fed from the new equipment including the normal and standby or emergency power sources down to, and including, the smallest adjustable trip circuit breaker in the distribution system.

2. Normal system connections and those which result in maximum fault conditions.

B. In The Short Circuit Study:1. Provide calculation methods and assumptions, base per-unit quantities selected, one-line diagrams,

source impedance data including power company system characteristics, typical calculations, and a tabulation of calculation results, conclusions, and recommendations.

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2. Calculate short circuit interrupting and momentary duties (as applicable) for an assumed 3-phase bolted fault at the service entrance disconnecting means, each switchboard, each motor control center, each distribution panelboard, and other significant locations throughout the distribution system.

3. Include fault contributions of each motor, unless specified otherwise.

C. Protective Device Coordination Study:1. Provide time-current curves graphically indicating the coordination proposed for the system, centered

on conventional, full-size, log-log forms.2. Include with each curve sheet a complete title and one-line diagram with legend identifying the specific

portion of the system covered by that particular curve sheet. Utilize different colors as necessary to clearly distinguish devices.

3. Include a detailed description of each protective device identifying its type, function, Manufacturer, and time current characteristics.

4. Tabulate recommended device tap, time dial, pickup, instantaneous, and time delay settings.5. Include on the curve sheet, as applicable, power company relay and fuse characteristics, medium-

voltage equipment relay and fuse characteristics, pertinent transformer characteristics, and pertinent motor and generator characteristics.

6. The study shall include all devices down to the largest branch/feeder circuit in each motor control center and distribution panelboard, and all adjustable settings for ground fault protective devices.

D. Arc Flash Hazard Analysis:1. Determine flash hazard boundary, incident energy, required level of personal protective equipment

(PPE), limited approach distance, restricted approach distance, and prohibited approach distance for electrical distribution equipment required to be field marked per Article 110.16 of the National Electrical Code.

2. Calculations to be developed based on IEEE 1584.3. Provide arc flash hazard warning labels for electrical distribution equipment required to be field marked.4. Electrical equipment within the main electric room area is to be included in this only unless noted

otherwise.

E. Circuit Protective Devices: Notify Engineer in writing of circuit protective devices not properly rated for the available fault conditions.

F. Phase and Ground Coordination:1. Include coordination of the generator protective devices.2. Show the generator decrement curve and damage curve along with the operating characteristics of the

protective devices.3. Obtain information from the generator Manufacturer or generator maintenance contractor and include

the actual generator impedance, time constraints, and current boost data.4. Do not use typical values for the generator.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install arc flash hazard warning labels on electrical distribution equipment that are required to be field marked.

B. Contractor shall perform field adjustments of protective devices and replace fuses as required to place the equipment in final operating condition. Settings for protective devices, fuse types and fuse sizes shall be in accordance with the recommendations of the reviewed coordination study.

END OF SECTION 26 05 73