12-886 Arc Flash Analysis 4

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Arc Flash Analysis

Text of 12-886 Arc Flash Analysis 4

  • Invitation For Bid Addendum #4 IFB12-886 Arc Flash Analysis &

    Protection Study Water & Sewer

    Issued: December 20, 2012

    City of Tulsa,

    Oklahoma Page 1 of 33

    06/11/12

    2-14-2013

    Addendum #4

    Please note the following changes which have been made for clarification to this Invitation For Sealed Bid. This addendum must be listed as Addendum #4 on Form #6 of the bid package as verification that you have received and are aware of the information contained herein. QUESTIONS/CLARIFICATION/CHANGES:

    1. Question: CAD drawings are referred to twice in the scope, but there is no explanation of what you want in these drawings. Page 20, section 1.1.2.b says that drawings will be delivered in CAD. Do you want:

    a. The drawings generated in the study software to be exported to AutoCAD format? OR b. Your existing AutoCAD drawings updated?

    Answer: AutoCAD will be removed altogether. Technical Specifications have been update to remove the CAD requirement.

    2. Question: Comment: Page 29, Item 12 was supposed to be removed, as work tasks based on the NFPA-70E tables will no longer be relevant once a software based study is completed. Please confirm. Answer: Item 12 has been deleted. 3. Question: Comment: page 29, item 11, first bullet is now irrelevant, due to Addendum 2 change 5. Please

    confirm. Answer: The wording in item 11 is correct as written.

    4. Question: The drawing for the Main Panel 6DP-1 has 6 loads connected to it and no main. My notes say there is

    main with 12 loads. The drawing for Main Panel 6DP-1 has 6 loads connected to it. My notes say there are 18 loads. My notes say these panels are in the sludge facility. I dont know if that is fed from substation 6 or not, but I do not see any DP panels on any of the other drawings. I do not have any other drawings with DP-1 and DP-2 panels identified. The drawings for switchboard 3A shows 3 pumps. My notes say there are 4 pumps. Answer: Switchboard 3A is part of the raw water scheme; however, 3A feeds three raw water pumps and supplies power to a transfer switch to MC 10M (EQ Basins). There are pumps fed from there. Switchboard 3B also feeds 3 raw water pumps and in addition to supplying power to MC10M transfer switch, it also feeds the raw water screens, the auger, and 2 pumps for cleaning the fish screens. The power to the Sludge Building is fed from a transformer that is not part of our Distribution of power from our MVSC, it is fed from the same source as the Security Building and it does have 480v equipment; however, we dont conduct tours in this facility, so it will be excluded from analysis in this Bid. As far as the missing equipment question, just bid on the equipment that is in the drawings.

    5. CHANGE: BID DUE DATE HAS BEEN EXTENDED TO FEBRUARY 27, 2013.

    2-8-2013

    Addendum #3

    Please note the following changes which have been made for clarification to this Invitation For Sealed Bid. This addendum must be listed as Addendum #3 on Form #6 of the bid package as verification that you have received and are aware of the information contained herein.

  • Invitation For Bid Addendum #4 IFB12-886 Arc Flash Analysis &

    Protection Study Water & Sewer

    Issued: December 20, 2012

    City of Tulsa,

    Oklahoma Page 2 of 33

    06/11/12

    QUESTIONS/CLARIFICATION/CHANGES:

    1. CHANGE: BID DUE DATE HAS BEEN EXTENDED TO FEBRUARY 20, 2013.

    2. Question: We have received additional drawings for Switchboard 3A and 3B. What do we do about the remaining drawings not received? Are they out of scope? Do we bid on existing drawings understanding there will be more work added for the other facilities? Answer: Sub 9 Pump Sta. 1, Sub 12 Pump Sta. 2, the storm water pump back station, Visitor Center, steam plant building, laboratory building, and the administration building at Mohawk are to be excluded from the arc flash analysis.

    2-1-2013

    Addendum #2

    Please note the following changes which have been made for clarification to this Invitation For Sealed Bid. This addendum must be listed as Addendum #2 on Form #6 of the bid package as verification that you have received and are aware of the information contained herein. QUESTIONS/CLARIFICATION/CHANGES:

    1. Question: Will Bidders be required to open up breakers or will staff be doing this? Answer: City staff will open the breakers. 2. Question: Could you more clearly define the scenarios? Answer: A. Both mains closed and tie open. B. Tie Breaker closed and one main open. C. Tie breaker closed, the main above closed, and opposite main opened. This should protect plant personnel in all switching conditions. 3. Question: What are the expectations for training? Answer: Two 8-hour classes (one at each facility) for up to 5 participants in each class and shall be conducted after the labeling has been completed. Training has been added to Exhibit A. 4. Change: Removed language regarding licensed tradesmen in 1.2 Data Collection section of the Technical

    Specifications. 5. Change: Under Data Collection section of the Technical Specifications, voltage has been change to read,

    greater than or equal to 125 kVA

    6. Change: Language regarding 2009 versions of 70E has been changed to 2012.

    7. Change: Arc Flash calculations shall be performed with IEEE-1584 equations. Removed enhanced language.

    8. Change: Under Arc Flash Study in the Technical Specifications, #11, language has been changed.

  • Invitation For Bid Addendum #4 IFB12-886 Arc Flash Analysis &

    Protection Study Water & Sewer

    Issued: December 20, 2012

    City of Tulsa,

    Oklahoma Page 3 of 33

    06/11/12

    Paragraph 12 regarding work tasks in the same section has been deleted.

    9. Change: Section 1.2.3 language has changed with regard to work permits. 10. Change: Arc Flash Hazard Report is to be provided to the City in PDF format. 11. Question: The scope included Lockout Tagout and was wondering if we can get a list from your CMMS of the equipment to be included for that process. Answer: We do not have a one-line drawing that completely addresses this question. We have partials on multiple drawings and will provide Bidders with what we have on this. The site visit should have provided Bidders with a good idea as to what needs to be locked out.

    1-17-2013

    Addendum #1

    Please note the following changes which have been made for clarification to this Invitation For Sealed Bid. This addendum must be listed as Addendum #1 on Form #6 of the bid package as verification that you have received and are aware of the information contained herein. QUESTIONS/CLARIFICATION/CHANGES:

    1. Change: The bid due date will be extended to February 13, 2013. Addendum #2 is expected to go out soon. You will need to submit your response on the latest addendum packet.

    THE REST OF THIS PAGE LEFT INTENTIONALLY BLANK

  • Invitation For Bid Addendum #4 IFB12-886 Arc Flash Analysis &

    Protection Study Water & Sewer

    Issued: December 20, 2012

    City of Tulsa,

    Oklahoma Page 4 of 33

    06/11/12

    NOTICE is hereby given that the CITY OF TULSA, OKLAHOMA will receive sealed Bids for the following: BID # IFB12-886 DESCRIPTION: Arc Flash Analysis & Protection Study (Commodity Code(s):992-40, 918-97, 992-39, 968-48, 936-25, 918-42) You are invited to submit a Bid to supply the Goods and/or Services specified above. Invitations for Bid (IFB) will be posted on the Citys website at www.cityoftulsapurchasing.org or a hardcopy may be obtained at:

    City of Tulsa-Purchasing Division 175 East 2nd Street, Suite 865 Tulsa Oklahoma 74103

    Bids must be received no later than 5:00 PM (CST) on Wednesday, February 27, 2013, and delivered to:

    City Clerks Office 175 East 2nd Street, Suite 260 Tulsa Oklahoma 74103

    Bids must be sealed and either mailed or delivered. No faxed or emailed Bids will be considered. Bids received after the stated date and time will not be accepted and will be returned to the Bidder unopened. The Bid Packet consists of (1) this Notice of Invitation for Bid, (2) the Summary Sheet, (3) Form #1, (4) Form #2, (5) Form #3, (6) Form #4, (7) Form #5, (8) Form #6, (9) the Instructions, Terms and Conditions for Bidders, (10) Special Requirements, (11) Technical Specifications and (12) Exhibit A. Use this checklist to ensure you have properly read and completed all Forms. _____ Notice of Invitation for Bid _____ Summary Sheet _____ Form #1: Bidder Information Sheet. Must be completed. _____ Form #2: Purchase Agreement. Complete legal name in first paragraph and Notice provision in Section 17.i.

    Original signature required. _____ Form #3: Interest Affidavit. Original signature and notarization required. _____ Form #4: Non-Collusion Affidavit. Original signature and notarization required. _____ Form #5: Affidavit of Claimant. Original signature and notarization required. _____ Form #6: Acknowledgment of Receipt of Addenda/Amendments. Must be completed and signed. _____ Instructions, Terms and Conditions for Bidders _____ Special Requirements (Offer Period; Insurance and Bonding; References) _____ Technical Specifications _____ Exhibit A: Bid Form including Delivery and Pricing. This is your Bid. It must be completed or your Bid will be rejected.

    IMPORTANT NOTE: Write the Bid Number, Bid Description (as listed above), and Bid Opening Date on the lower left corner of the outside of your Bid envelope. You must