Z1DA--598-19-112 Replace Underground 15kV Feeders and Transformers-NLR

at shows the transformers I was able to deduce by the buildings they are feeding (per the table in E501). Note that one of the manholes we looked at during the site visit was outside of Building 69, and it has cables running through it with T-connectors tapped off to feed a load that was assumed to be the nearby Transformer 18, but drawing E502 shows a separate unlabeled vault feeding T18. So drawing E502 might not be very accurate anyway, but it could be a good starting point, and it would helpful if the loops were color-coded. Attached drawings are for information only. Proposal RFI #3 Can we get a bid extension of at least two weeks? See P0003 Block 11. Proposal RFI #4 Can we schedule another site visit and walk to every transformer that is being replaced? Can we also look at the switchgear feeding the loops, and can we see the sites where the sectionalizers are going to be installed? An additional site visit will not be authorized. Proposal RFI #5 Can we assume that the cable feeding each transformer will need to be replaced because it s impossible to know if the existing cables will be long enough to reach the new transformer terminals? Can we get approximate (or assumed average) distances from the separable connectors to the transformers? The intent is to procure replacement transformers with similar connections that do not require additional cable length. Proposal RFI #6 During the site visit, it was mentioned that there are photos of all the manholes, but those don t appear in the bid documents. Can we get those photos with labels / file names corresponding to the manhole? No organized library of photos exists. Proposal RFI #7 I perused the plans and specs for a specific Schneider PME monitoring system or for a spec section which would outline the salient characteristics of a PME monitoring system. The specs are missing the spec section completely, and the plans make no reference to a BoD. This is an important part of this solicitation, and there are several Schneider options to choose from each providing a leg up on the other https://www.se.com/us/en/product-category/4100-power-metering-and-energy-monitoring-systems/� . Can you please reach out to your engineering department, request more information from them, and post an amendment with the information.� Exact energy monitors shall be coordinated with the VA. Existing monitoring equipment appeared to be Square D PowerLogic PM800 devices. See RFI#22, RFI#41, RFI#42, RFI#43, RFI #45, RFI#46 Proposal RFI #8 None of the drawings showing the cable route are to scale. Can you provide a drawing with an accurate scale in order to get an accurate measurement of the cable lengths? Drawings are intended to indicate locations of each manhole, transformer, and other equipment in SOW. No cabling is expected to be replaced. Only the splices/separable connectors are being replaced. Proposal RFI #9 The drawings are incomplete showing the duct bank route to the transformers. Can you provide drawings showing the complete route? Reference Prints E401-E406 All available information is indicated. See RFI #5, RFI#19, RFI#33, RFI#53. Proposal RFI #10 - The schedule does not indicate the Primary Voltage. Please provide the Primary Voltage for the transformers. All the primary voltages for transformers are 13.8kV. RFI#1, RFI#40 Proposal RFI #11 Is there a spare conduit that can be used for the new cable while the existing cable stays energized? Manholes must be de-energized when accessed. See RFI # 8. Proposal RFI #12 Are we allowed to work in manholes with energized cables in them? No. Proposal RFI #13 Can you provide a drawing to scale showing the route of the manholes with duct-banks and locations of the transformers? All information is indicated. See RFI #8 and 67. Proposal RFI #14 On Sheet E001 Scope of Work Notes Note 1.4 states Provide Grounding as indicated in Specs. for all transformers indicated. The only place in the prints that mention Transformer Grounding is on Sheet E502 Transformer Notes Note 4. States Any transformer without sufficient Grounding shall have new grounding provided as indicated in Detail . The contractor has no way of knowing the quantity of this during the bid process. Please advise as to how we should estimate this or will a cost adjustment be issued when the quantity is known? Electrical equipment should be grounded in accordance with the current National Electric Code standard. Proposal RFI #15 Sheet E001 Scope of Work Notes Note 2.4 states Provide Grounding as indicated in Specs. for all Manholes as indicated. I cannot find anywhere where the prints indicate manhole grounding, please indicate the quantity of manholes needing grounding. Electrical equipment should be grounded in accordance with the current National Electric Code standard. Proposal RFI #16 Is there any known asbestos insulation on existing primary cables if so, how will this be handled? No. Asbestos abatement is not in the contract scope. Proposal RFI #17 Will Temporary Generators be required for Outages and if so, what buildings must be able to size accordingly? There are only three (3) mission critical buildings as determined in the design phase. See E001 Phasing Notes for mission critical buildings. Proposal RFI #18 - Define separable connections. After opening manholes it appears that these are just modular splices not bolted T-bodies for disconnecting Elastimold catalog # K150T is an example of a tee splice. Proposal RFI #19 - When replacing the required transformers what happens if the existing Primary & secondary cabling is too short to make up on the new Transformers The intent is to procure replacement transformers with similar connections that do not require additional cable length. Proposal RFI #20 - What is the amount of total duration requirements for a single outage See E001 Phasing Notes. Work hours shall be 7AM Saturday through 7PM Sunday. Any power outage shall be coordinated with the VA as indicated. Only VA personnel disconnect/reconnect power under normal conditions. Proposal RFI #21 In the Description of Work page 2 of 7 states Each of the splices in the manholes identified shall be replaced with new devices in kind with existing type During the site visit a couple manholes were opened, it appears that when you remove (cutting out) the existing splices the cable will more than likely be too short to make new splices and mount on the racks. Please advise if this will be a mod. to the contract. Intent is to make existing connections in the same configuration as existing. X, T, Straight, etc. New connections shall be in accordance with design drawings, specifications, and applicable Codes. Exact cable length needed to be determined by contractor. Proposal RFI #22 In the Description of Work page 2 of 7 states new metering devices will be connected to the existing PME system. Will anything other than the meter and programing need to be provided? Will we use existing CT s and wiring? Assume new transformers will require new metering. See RFI#7, RFI#41, RFI#42, RFI#43, RFI #45, RFI #46 Proposal RFI #23 Since this is not a cable replacement job & is only a transformer change out, as discussed in the Site Visit. Will replacing the splices in the manholes as indicated in the Electrical Scope of Work Notes 2.1 & the Manhole Information notes still be required? Project SOW is as indicated on E001. Transformers, Manho