City of Seattle Invitation to Bid # 1063 Addendum

Dated 01/06/12

The following is additional information regarding Invitation to Bid #SCL-1063, titled Transformers with OLTC for North Substation released on 12/1/11. The due date remains as 1/10/12 @2:30 PM (Pacific). This addendum includes both questions from prospective bidders and the City’s answers, and revisions to the ITB. This addendum is hereby made part of the ITB and therefore, the information contained herein shall be taken into consideration when preparing and submitting a bid/proposal.

Page 1 of 2 Item Date Date Vendor’s Question City’s Answer ITB Revisions # Received Answered 1 12/12/11 12/20/11 Regarding liquidated damages, The City’s liquidated damages is not a ITB SCL-1063, Section 5, page 5 we have never seen suchCity aof high Seattle late Invitationpenalty, to but Bid damages # 1063 that the City will Liquidated Damages is revised to read: delivery penalty ($10,000/day) and aAddendum incur if transformers are not delivered not to exceed value of 50%. Our as scheduled. The City has revisited Liquidated Damages: Delivery is of the standard is $1,000/day and not to the damages it believes it will incur essence. Liquidated damages will be exceed 10%. Dated should01/06/12 the transformers not be assessed for late delivery. Liquidated delivered on the scheduled delivery damages will be assessed in the amount date specified in the ITB. The City of $(5,000.00) for each day of delay until believes the damages could easily the delivery is completed, but not exceed $5,000 per day; however, it is exceeding twenty-five percent (25%) of the willing to fix the amount at $5,000 per value of the purchase order under which day. delivery is due. The Owner will retain the liquidated damages from the payments due to the Bidder.

2 12/16/11 12/20/11 Clause 5.b, page 21 Please review page 4 of the ITB online, Per this clause the tendered the attachment “SAMPLE TEST transformers to operate in parallel with CERTIFICATE”, pdf file “Transformer the existing transformers. Please obtain Bank 54 Test Report” This file has all the paralleling data (copies of the the information. The two banks being nameplate and the test certificates) for purchased through this ITB will be the existing transformers. paralleled with Bank 54, supplied by Pauwels. The electrical rating for the two units to be purchased is provided in Section 6 of the bid specification. 3 12/16/11 12/20/11 Clause 6.5.1, page 23 Follow standard IEEE C57.91 loading Please obtain pre overload conditions guide as specified. The specification is (MVA and the duration before start on clear about the loading cycle, the overloads) for both summer (at 30 specifically review 6.5.1 paragraph 3. degrees centigrade ambient) and winter (at zero degrees centigrade ambient) overloads.

4 12/16/11 12/20/11 Clause 6.11.12.1.a, page 38 The OLTC conservator has no airbag Under this clause it is stated that "The and has the Messko breather system oil preservation system shall be as specified. The manufacturer of provided which is sealed and under OLTC will provide you more specifics. positive pressure". The positive pressure will be From the above, the requirement is not maintained by the conservator head. clear. OLTC conservator is with no air bag and have a silica gel breather. If the customer requirement is different from this, request more details (request a sketch). Page 2 of 2

5 12/16/11 12/20/11 ITB SCL-1063 Section 5, Specifications, page 6, Clause 2.1, delivery dates are